Tag Archives: java

Java gets the type t.class of generic t 

import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;

public class Main{
    public static void main(String[] args)
    {
        Foo<String> foo = new Foo<String>(){};
        // 在类的外部这样获取
        Type type = ((ParameterizedType)foo.getClass().getGenericSuperclass()).getActualTypeArguments()[0];
        System.out.println(type);
        // 在类的内部这样获取
        System.out.println(foo.getTClass());
    }
}

abstract class Foo<T>{
    public Class<T> getTClass()
    {
        Class<T> tClass = (Class<T>)((ParameterizedType)getClass().getGenericSuperclass()).getActualTypeArguments()[0];
        return tClass;
    }
}

Output: 

class java.lang.String
class java.lang.String

the above code is not omnipotent, only a subclass of instantiated T can get the actual type of T in the above method,
if the subclass does not instantiate T, you cannot get the actual type of T; For example, the class Child does not instantiate T, so it does not get string.class; 

import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;

public class Main{
    public static void main(String[] args){
        //区别在new Child<String>()没有{}匿名类
        Foo<String> foo = new Child<String>();
        // 在类的外部这样获取
        Type type = ((ParameterizedType)foo.getClass().getGenericSuperclass()).getActualTypeArguments()[0];
        System.out.println(type);
        // 在类的内部这样获取
        System.out.println(foo.getTClass());
    }
}

abstract class Foo<T>{
    public Class<T> getTClass()
    {
        Class<T> tClass = (Class<T>)((ParameterizedType)getClass().getGenericSuperclass()).getActualTypeArguments()[0];
        return tClass;
    }
}

class Child<T> extends Foo<T>{
}

output: 

Exception in thread "main" java.lang.ClassCastException: java.lang.Class cannot be cast to java.lang.reflect.ParameterizedType
    at com.hankcs.Main.main(Main.java:9)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)

is a solution where the parent class itself does not get the concrete type of the generic type, but only provides abstract methods, and the subclass provides the concrete type 

public abstract class Foo<T> {  
    public abstract Class getEntityClass();  
}  

public class Child extends Foo<String> {  
    public Class getEntityClass() {  
        return String.class;  
    }  
}

the complete code for the method to get the generics is as follows :

import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;

public class GenericsUtils {
    /**
     * 通过反射,获得定义Class时声明的父类的范型参数的类型. 如public BookManager extends
     * GenricManager<Book>
     * 
     * @param clazz The class to introspect
     * @return the first generic declaration, or <code>Object.class</code> if cannot be determined
     */
    public static Class getSuperClassGenricType(Class clazz) {
        return getSuperClassGenricType(clazz, 0);
    }

    /**
     * 通过反射,获得定义Class时声明的父类的范型参数的类型. 如public BookManager extends GenricManager<Book>
     * 
     * @param clazz clazz The class to introspect
     * @param index the Index of the generic ddeclaration,start from 0.
     */
    public static Class getSuperClassGenricType(Class clazz, int index)
            throws IndexOutOfBoundsException {
        Type genType = clazz.getGenericSuperclass();
        if (!(genType instanceof ParameterizedType)) {
            return Object.class;
        }
        Type[] params = ((ParameterizedType) genType).getActualTypeArguments();
        if (index >= params.length || index < 0) {
            return Object.class;
        }
        if (!(params[index] instanceof Class)) {
            return Object.class;
        }
        return (Class) params[index];
    }
}

reproduced source: http://blog.csdn.net/wangjunjun2008/article/details/43970217

http://www.hankcs.com/program/t-class.html
https://www.cnblogs.com/sirab415/p/6133533.html

Java encrypts the string with MD5

for a plaintext, for security, sometimes we need to do MD5 encryption, the following provides a Java tool method, directly called. 

/**
 * MD5加密
 */
public class MD5Util {

	/**
	 * Encodes a string 2 MD5
	 * 
	 * @param str String to encode
	 * @return Encoded String
	 * @throws NoSuchAlgorithmException
	 */
	public static String crypt(String str) {
		if (str == null || str.length() == 0) {
			throw new IllegalArgumentException("String to encript cannot be null or zero length");
		}
		StringBuffer hexString = new StringBuffer();
		try {
			MessageDigest md = MessageDigest.getInstance("MD5");
			md.update(str.getBytes());
			byte[] hash = md.digest();
			for (int i = 0; i < hash.length; i++) {
				if ((0xff & hash[i]) < 0x10) {
					hexString.append("0" + Integer.toHexString((0xFF & hash[i])));
				} else {
					hexString.append(Integer.toHexString(0xFF & hash[i]));
				}
			}
		} catch (NoSuchAlgorithmException e) {
			e.printStackTrace();
		}
		return hexString.toString();
	}

}


How to Fix Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.7.0:compile 

mvn clean package -Dmaven.test.skip=true

error thrown today when the project was packaged with the maven command :

Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.7.0:compile (default-compile) on project springbootdemo: Fatal error compiling: 无效的标记: -parameters -> [Help 1]

is easier to fix because the JDK version you need for your project is inconsistent with the JDK version you are currently using, because Java version is defined as 1.8 in my project’s pom. XML, but my actual idea for run project is 1.7

    <java.version>1.8</java.version>

solution: simply replace the current JDK version with the JDK required for your project

if you click on the package compiler in the maven window of intellij idea, enter the intellij idea JDK version by Ctrl+Alt+s into the Settings screen

select the item, right click the F4 key, and set the item properties to enter

if you’re packing directly in Windows CMD with maven, you’ll need to switch your JDK environment. After the above setup, repackage and compile OK!

other conditions can also cause this error:

1. When you run a project with a command like java-jar ~.jar, you can also package the project with an error.

2. The configured dependency in your pom. XML file is not correct (it may be version, name, etc.), jar package does not come down, please carefully check whether there is an error in pom. XML, for example, if the dependency is not correct in idea, it can be directly seen in the maven project window.

extended reading: advanced customized timing tasks (including an administrative interface) using quartz

recommended reading: elastic search search engine actual combat demo:https://github.com/simonsfan/springboot-quartz-demo, branches: feature_es

Failed to create JVM. JVM Path: xxxxx

crack need to modify: bin/idea64. Exe. Vmoptions parameter, causing boot error:

this is because the environment variable may not have been set, but it was, and it was later found to be due to a bin/idea64.exe.vmoptions file format problem.

bin/idea64. Exe.vmoptions is in utf-8 by default, but changed to utf-8 BOM by using Windows notepad.

converts to utf-8 format. Opens with NodePad++, encoding -> Utf-8, then save

Failed to start component [standardengine [Catalina]. Standardhost [localhost]. Standardcontext 

严重: A child container failed during start

> 这里是引用

java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/manage]]
	at java.util.concurrent.FutureTask.report(FutureTask.java:122)
	at java.util.concurrent.FutureTask.get(FutureTask.java:188)
	at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1243)
	at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:819)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1707)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1697)
	at java.util.concurrent.FutureTask.run(FutureTask.java:262)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/manage]]
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:162)
	... 6 more
Caused by: java.lang.IllegalArgumentException: The servlets named [AjaxTypeAdd] and [com.news.controller.AjaxTypeAdd] are both mapped to the url-pattern [/AjaxTypeAdd] which is not permitted
	at org.apache.catalina.deploy.WebXml.addServletMapping(WebXml.java:306)
	at org.apache.catalina.startup.ContextConfig.processAnnotationWebServlet(ContextConfig.java:2463)
	at org.apache.catalina.startup.ContextConfig.processClass(ContextConfig.java:2137)
	at org.apache.catalina.startup.ContextConfig.processAnnotationsStream(ContextConfig.java:2126)
	at org.apache.catalina.startup.ContextConfig.processAnnotationsFile(ContextConfig.java:2094)
	at org.apache.catalina.startup.ContextConfig.processAnnotationsFile(ContextConfig.java:2086)
	at org.apache.catalina.startup.ContextConfig.processAnnotationsFile(ContextConfig.java:2086)
	at org.apache.catalina.startup.ContextConfig.processAnnotationsFile(ContextConfig.java:2086)
	at org.apache.catalina.startup.ContextConfig.processClasses(ContextConfig.java:1377)
	at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1278)
	at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:881)
	at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:388)
	at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
	at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5590)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
	... 6 more

二月 18, 2020 10:07:44 上午 org.apache.catalina.core.ContainerBase startInternal
严重: A child container failed during start
java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost]]
	at java.util.concurrent.FutureTask.report(FutureTask.java:122)
	at java.util.concurrent.FutureTask.get(FutureTask.java:188)
	at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1243)
	at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:300)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
	at org.apache.catalina.core.StandardService.startInternal(StandardService.java:444)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
	at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:758)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:711)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:294)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:428)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost]]
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:162)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1707)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1697)
	at java.util.concurrent.FutureTask.run(FutureTask.java:262)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.catalina.LifecycleException: A child container failed during start
	at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1254)
	at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:819)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
	... 6 more
Caused by: java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/manage]]
	at java.util.concurrent.FutureTask.report(FutureTask.java:122)
	at java.util.concurrent.FutureTask.get(FutureTask.java:188)
	at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1243)
	... 8 more
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/manage]]
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:162)
	... 6 more
Caused by: java.lang.IllegalArgumentException: The servlets named [AjaxTypeAdd] and [com.news.controller.AjaxTypeAdd] are both mapped to the url-pattern [/AjaxTypeAdd] which is not permitted
	at org.apache.catalina.deploy.WebXml.addServletMapping(WebXml.java:306)
	at org.apache.catalina.startup.ContextConfig.processAnnotationWebServlet(ContextConfig.java:2463)
	at org.apache.catalina.startup.ContextConfig.processClass(ContextConfig.java:2137)
	at org.apache.catalina.startup.ContextConfig.processAnnotationsStream(ContextConfig.java:2126)
	at org.apache.catalina.startup.ContextConfig.processAnnotationsFile(ContextConfig.java:2094)
	at org.apache.catalina.startup.ContextConfig.processAnnotationsFile(ContextConfig.java:2086)
	at org.apache.catalina.startup.ContextConfig.processAnnotationsFile(ContextConfig.java:2086)
	at org.apache.catalina.startup.ContextConfig.processAnnotationsFile(ContextConfig.java:2086)
	at org.apache.catalina.startup.ContextConfig.processClasses(ContextConfig.java:1377)
	at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1278)
	at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:881)
	at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:388)
	at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
	at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5590)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
	... 6 more

二月 18, 2020 10:07:44 上午 org.apache.catalina.startup.Catalina start
严重: The required Server component failed to start so Tomcat is unable to start.
org.apache.catalina.LifecycleException: Failed to start component [StandardServer[8005]]
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:162)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:711)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:294)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:428)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardService[Catalina]]
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:162)
	at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:758)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
	... 7 more
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina]]
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:162)
	at org.apache.catalina.core.StandardService.startInternal(StandardService.java:444)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
	... 9 more
Caused by: org.apache.catalina.LifecycleException: A child container failed during start
	at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1254)
	at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:300)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
	... 11 more
Caused by: java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost]]
	at java.util.concurrent.FutureTask.report(FutureTask.java:122)
	at java.util.concurrent.FutureTask.get(FutureTask.java:188)
	at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1243)
	... 13 more
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost]]
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:162)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1707)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1697)
	at java.util.concurrent.FutureTask.run(FutureTask.java:262)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.catalina.LifecycleException: A child container failed during start
	at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1254)
	at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:819)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
	... 6 more
Caused by: java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/manage]]
	at java.util.concurrent.FutureTask.report(FutureTask.java:122)
	at java.util.concurrent.FutureTask.get(FutureTask.java:188)
	at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1243)
	... 8 more
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/manage]]
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:162)
	... 6 more
Caused by: java.lang.IllegalArgumentException: The servlets named [AjaxTypeAdd] and [com.news.controller.AjaxTypeAdd] are both mapped to the url-pattern [/AjaxTypeAdd] which is not permitted
	at org.apache.catalina.deploy.WebXml.addServletMapping(WebXml.java:306)
	at org.apache.catalina.startup.ContextConfig.processAnnotationWebServlet(ContextConfig.java:2463)
	at org.apache.catalina.startup.ContextConfig.processClass(ContextConfig.java:2137)
	at org.apache.catalina.startup.ContextConfig.processAnnotationsStream(ContextConfig.java:2126)
	at org.apache.catalina.startup.ContextConfig.processAnnotationsFile(ContextConfig.java:2094)
	at org.apache.catalina.startup.ContextConfig.processAnnotationsFile(ContextConfig.java:2086)
	at org.apache.catalina.startup.ContextConfig.processAnnotationsFile(ContextConfig.java:2086)
	at org.apache.catalina.startup.ContextConfig.processAnnotationsFile(ContextConfig.java:2086)
	at org.apache.catalina.startup.ContextConfig.processClasses(ContextConfig.java:1377)
	at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1278)
	at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:881)
	at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:388)
	at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
	at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5590)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
	... 6 more

start tomcat when occasionally have this kind of problem, then I found The reference on The servlet, and XML is not compatible with lead to
` The servlets named [AjaxTypeAdd] and [com. News. Controller. AjaxTypeAdd] are both mapped to The url – The pattern [/ AjaxTypeAdd] which is not permitted!



remove the referenced files in the servlet * @webservlet (“/ your project name “)* just do it

【Error】gRPC failure=Status{code=UNAVAILABLE, description=io exception, cause=io.netty.channel.

error 1 

18:43:16.408 [main] ERROR org.hyperledger.fabric.sdk.Channel - Channel Channel{id: 1, name: mychannel} Sending proposal with transaction: c6da6324f94b7aa4776727603fc22177e8ad8d50453ed515e2d0e950b9afe367 to Peer{ id: 7, name: peer0.org1.example.com:7051, channelName: mychannel, url: grpcs://peer0.org1.example.com:7051, mspid: Org1MSP} failed because of: gRPC failure=Status{code=UNAVAILABLE, description=io exception, cause=io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: no further information: peer0.org1.example.com/120.240.95.34:7051
Caused by: java.net.ConnectException: Connection refused: no further information
	at java.base/sun.nio.ch.Net.pollConnect(Native Method)
	at java.base/sun.nio.ch.Net.pollConnectNow(Net.java:589)
	at java.base/sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:839)
	at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:327)
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:336)
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:685)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:632)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:549)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:511)
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918)
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
	at java.base/java.lang.Thread.run(Thread.java:832)
}
java.lang.Exception: io.grpc.StatusRuntimeException: UNAVAILABLE: io exception
	at org.hyperledger.fabric.sdk.Channel.sendProposalToPeers(Channel.java:4525) [fabric-sdk-java-1.4.11.jar:?]
	at org.hyperledger.fabric.sdk.Channel.sendTransactionProposalToEndorsers(Channel.java:4213) [fabric-sdk-java-1.4.11.jar:?]
	at org.hyperledger.fabric.gateway.impl.TransactionImpl.sendTransactionProposal(TransactionImpl.java:121) [fabric-gateway-java-1.4.5.jar:?]
	at org.hyperledger.fabric.gateway.impl.TransactionImpl.endorseTransaction(TransactionImpl.java:106) [fabric-gateway-java-1.4.5.jar:?]
	at org.hyperledger.fabric.gateway.impl.TransactionImpl.submit(TransactionImpl.java:92) [fabric-gateway-java-1.4.5.jar:?]
	at org.hyperledger.fabric.gateway.impl.ContractImpl.submitTransaction(ContractImpl.java:50) [fabric-gateway-java-1.4.5.jar:?]
	at datasharing.Sample.uploadLog(Sample.java:68) [classes/:?]
	at datasharing.Sample.main(Sample.java:31) [classes/:?]
Caused by: io.grpc.StatusRuntimeException: UNAVAILABLE: io exception
	at io.grpc.Status.asRuntimeException(Status.java:533) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.stub.ClientCalls$UnaryStreamToFuture.onClose(ClientCalls.java:490) ~[grpc-stub-1.23.0.jar:1.23.0]
	at io.grpc.PartialForwardingClientCallListener.onClose(PartialForwardingClientCallListener.java:39) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:23) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.ForwardingClientCallListener$SimpleForwardingClientCallListener.onClose(ForwardingClientCallListener.java:40) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.internal.CensusStatsModule$StatsClientInterceptor$1$1.onClose(CensusStatsModule.java:700) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.PartialForwardingClientCallListener.onClose(PartialForwardingClientCallListener.java:39) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:23) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.ForwardingClientCallListener$SimpleForwardingClientCallListener.onClose(ForwardingClientCallListener.java:40) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.internal.CensusTracingModule$TracingClientInterceptor$1$1.onClose(CensusTracingModule.java:399) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl.closeObserver(ClientCallImpl.java:510) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl.access$300(ClientCallImpl.java:66) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.close(ClientCallImpl.java:630) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.access$700(ClientCallImpl.java:518) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInternal(ClientCallImpl.java:692) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInContext(ClientCallImpl.java:681) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123) ~[grpc-core-1.23.0.jar:1.23.0]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130) ~[?:?]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630) ~[?:?]
	at java.lang.Thread.run(Thread.java:832) ~[?:?]
Caused by: io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: no further information: peer0.org1.example.com/120.240.95.34:7051
Caused by: java.net.ConnectException: Connection refused: no further information
	at sun.nio.ch.Net.pollConnect(Native Method) ~[?:?]
	at sun.nio.ch.Net.pollConnectNow(Net.java:589) ~[?:?]
	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:839) ~[?:?]
	at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:327) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:336) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:685) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:632) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:549) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:511) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918) ~[netty-common-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.38.Final.jar:4.1.38.Final]
	at java.lang.Thread.run(Thread.java:832) ~[?:?]
18:43:16.441 [main] ERROR org.hyperledger.fabric.gateway.impl.TransactionImpl - No valid proposal responses received. 1 peer error responses: Channel Channel{id: 1, name: mychannel} Sending proposal with transaction: c6da6324f94b7aa4776727603fc22177e8ad8d50453ed515e2d0e950b9afe367 to Peer{ id: 7, name: peer0.org1.example.com:7051, channelName: mychannel, url: grpcs://peer0.org1.example.com:7051, mspid: Org1MSP} failed because of: gRPC failure=Status{code=UNAVAILABLE, description=io exception, cause=io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: no further information: peer0.org1.example.com/120.240.95.34:7051
Caused by: java.net.ConnectException: Connection refused: no further information
	at java.base/sun.nio.ch.Net.pollConnect(Native Method)
	at java.base/sun.nio.ch.Net.pollConnectNow(Net.java:589)
	at java.base/sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:839)
	at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:327)
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:336)
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:685)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:632)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:549)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:511)
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918)
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
	at java.base/java.lang.Thread.run(Thread.java:832)
}
Exception in thread "main" org.hyperledger.fabric.gateway.ContractException: No valid proposal responses received. 1 peer error responses: Channel Channel{id: 1, name: mychannel} Sending proposal with transaction: c6da6324f94b7aa4776727603fc22177e8ad8d50453ed515e2d0e950b9afe367 to Peer{ id: 7, name: peer0.org1.example.com:7051, channelName: mychannel, url: grpcs://peer0.org1.example.com:7051, mspid: Org1MSP} failed because of: gRPC failure=Status{code=UNAVAILABLE, description=io exception, cause=io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: no further information: peer0.org1.example.com/120.240.95.34:7051
Caused by: java.net.ConnectException: Connection refused: no further information
	at java.base/sun.nio.ch.Net.pollConnect(Native Method)
	at java.base/sun.nio.ch.Net.pollConnectNow(Net.java:589)
	at java.base/sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:839)
	at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:327)
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:336)
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:685)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:632)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:549)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:511)
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918)
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
	at java.base/java.lang.Thread.run(Thread.java:832)
}
	at org.hyperledger.fabric.gateway.impl.TransactionImpl.validatePeerResponses(TransactionImpl.java:202)
	at org.hyperledger.fabric.gateway.impl.TransactionImpl.submit(TransactionImpl.java:93)
	at org.hyperledger.fabric.gateway.impl.ContractImpl.submitTransaction(ContractImpl.java:50)
	at datasharing.Sample.uploadLog(Sample.java:68)
	at datasharing.Sample.main(Sample.java:31)

solution

according to the Connection refused: no further information: peer0.org1.example.com/120.240.95.34:7051
the yaml instead of a domain name in the form of: grpcs://peer0.org1.example.com: 7051
in the local hosts file mapping

error 2 

20:33:37.572 [grpc-default-executor-1] ERROR org.hyperledger.fabric.sdk.OrdererClient - OrdererClient{id: 17, channel: mychannel, name: orderer.example.com:7050, url: grpcs://orderer.example.com:7050}  managed channel isTerminated: false, isShutdown: false, state: TRANSIENT_FAILURE
20:33:37.581 [grpc-default-executor-1] ERROR org.hyperledger.fabric.sdk.OrdererClient - Received error org.hyperledger.fabric.sdk.OrdererClient$1@538c96fe  UNAVAILABLE: io exception
io.grpc.StatusRuntimeException: UNAVAILABLE: io exception
	at io.grpc.Status.asRuntimeException(Status.java:533) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.stub.ClientCalls$StreamObserverToCallListenerAdapter.onClose(ClientCalls.java:442) [grpc-stub-1.23.0.jar:1.23.0]
	at io.grpc.PartialForwardingClientCallListener.onClose(PartialForwardingClientCallListener.java:39) [grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:23) [grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.ForwardingClientCallListener$SimpleForwardingClientCallListener.onClose(ForwardingClientCallListener.java:40) [grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.internal.CensusStatsModule$StatsClientInterceptor$1$1.onClose(CensusStatsModule.java:700) [grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.PartialForwardingClientCallListener.onClose(PartialForwardingClientCallListener.java:39) [grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:23) [grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.ForwardingClientCallListener$SimpleForwardingClientCallListener.onClose(ForwardingClientCallListener.java:40) [grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.internal.CensusTracingModule$TracingClientInterceptor$1$1.onClose(CensusTracingModule.java:399) [grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl.closeObserver(ClientCallImpl.java:510) [grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl.access$300(ClientCallImpl.java:66) [grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.close(ClientCallImpl.java:630) [grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.access$700(ClientCallImpl.java:518) [grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInternal(ClientCallImpl.java:692) [grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInContext(ClientCallImpl.java:681) [grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37) [grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123) [grpc-core-1.23.0.jar:1.23.0]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130) [?:?]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630) [?:?]
	at java.lang.Thread.run(Thread.java:832) [?:?]
Caused by: io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: no further information: orderer.example.com/121.33.215.154:7050
Caused by: java.net.ConnectException: Connection refused: no further information
	at sun.nio.ch.Net.pollConnect(Native Method) ~[?:?]
	at sun.nio.ch.Net.pollConnectNow(Net.java:589) ~[?:?]
	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:839) ~[?:?]
	at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:327) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:336) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:685) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:632) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:549) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:511) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918) ~[netty-common-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.38.Final.jar:4.1.38.Final]
	... 1 more
20:33:37.600 [main] ERROR org.hyperledger.fabric.sdk.OrdererClient - OrdererClient{id: 17, channel: mychannel, name: orderer.example.com:7050, url: grpcs://orderer.example.com:7050} grpc status Code:io exception, Description UNAVAILABLE, 
io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: no further information: orderer.example.com/121.33.215.154:7050
Caused by: java.net.ConnectException: Connection refused: no further information
	at sun.nio.ch.Net.pollConnect(Native Method) ~[?:?]
	at sun.nio.ch.Net.pollConnectNow(Net.java:589) ~[?:?]
	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:839) ~[?:?]
	at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:327) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:336) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:685) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:632) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:549) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:511) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918) ~[netty-common-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.38.Final.jar:4.1.38.Final]
	at java.lang.Thread.run(Thread.java:832) ~[?:?]
20:33:37.602 [main] ERROR org.hyperledger.fabric.sdk.OrdererClient - OrdererClient{id: 17, channel: mychannel, name: orderer.example.com:7050, url: grpcs://orderer.example.com:7050}sendTransaction error Channel mychannel, send transaction failed on orderer OrdererClient{id: 17, channel: mychannel, name: orderer.example.com:7050, url: grpcs://orderer.example.com:7050}. Reason: UNAVAILABLE: io exception
org.hyperledger.fabric.sdk.exception.TransactionException: Channel mychannel, send transaction failed on orderer OrdererClient{id: 17, channel: mychannel, name: orderer.example.com:7050, url: grpcs://orderer.example.com:7050}. Reason: UNAVAILABLE: io exception
	at org.hyperledger.fabric.sdk.OrdererClient.sendTransaction(OrdererClient.java:236) [fabric-sdk-java-1.4.11.jar:?]
	at org.hyperledger.fabric.sdk.Orderer.sendTransaction(Orderer.java:164) [fabric-sdk-java-1.4.11.jar:?]
	at org.hyperledger.fabric.sdk.Channel.doSendTransaction(Channel.java:5376) [fabric-sdk-java-1.4.11.jar:?]
	at org.hyperledger.fabric.sdk.Channel.sendTransaction(Channel.java:5207) [fabric-sdk-java-1.4.11.jar:?]
	at org.hyperledger.fabric.gateway.impl.TransactionImpl.commitTransaction(TransactionImpl.java:138) [fabric-gateway-java-1.4.5.jar:?]
	at org.hyperledger.fabric.gateway.impl.TransactionImpl.submit(TransactionImpl.java:96) [fabric-gateway-java-1.4.5.jar:?]
	at org.hyperledger.fabric.gateway.impl.ContractImpl.submitTransaction(ContractImpl.java:50) [fabric-gateway-java-1.4.5.jar:?]
	at datasharing.Sample.uploadLog(Sample.java:68) [classes/:?]
	at datasharing.Sample.main(Sample.java:31) [classes/:?]
Caused by: io.grpc.StatusRuntimeException: UNAVAILABLE: io exception
	at io.grpc.Status.asRuntimeException(Status.java:533) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.stub.ClientCalls$StreamObserverToCallListenerAdapter.onClose(ClientCalls.java:442) ~[grpc-stub-1.23.0.jar:1.23.0]
	at io.grpc.PartialForwardingClientCallListener.onClose(PartialForwardingClientCallListener.java:39) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:23) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.ForwardingClientCallListener$SimpleForwardingClientCallListener.onClose(ForwardingClientCallListener.java:40) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.internal.CensusStatsModule$StatsClientInterceptor$1$1.onClose(CensusStatsModule.java:700) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.PartialForwardingClientCallListener.onClose(PartialForwardingClientCallListener.java:39) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:23) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.ForwardingClientCallListener$SimpleForwardingClientCallListener.onClose(ForwardingClientCallListener.java:40) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.internal.CensusTracingModule$TracingClientInterceptor$1$1.onClose(CensusTracingModule.java:399) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl.closeObserver(ClientCallImpl.java:510) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl.access$300(ClientCallImpl.java:66) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.close(ClientCallImpl.java:630) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.access$700(ClientCallImpl.java:518) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInternal(ClientCallImpl.java:692) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInContext(ClientCallImpl.java:681) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123) ~[grpc-core-1.23.0.jar:1.23.0]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130) ~[?:?]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630) ~[?:?]
	at java.lang.Thread.run(Thread.java:832) ~[?:?]
Caused by: io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: no further information: orderer.example.com/121.33.215.154:7050
Caused by: java.net.ConnectException: Connection refused: no further information
	at sun.nio.ch.Net.pollConnect(Native Method) ~[?:?]
	at sun.nio.ch.Net.pollConnectNow(Net.java:589) ~[?:?]
	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:839) ~[?:?]
	at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:327) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:336) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:685) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:632) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:549) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:511) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918) ~[netty-common-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.38.Final.jar:4.1.38.Final]
	at java.lang.Thread.run(Thread.java:832) ~[?:?]
20:33:37.607 [main] ERROR org.hyperledger.fabric.sdk.Channel - Channel mychannel unsuccessful sendTransaction to orderer orderer.example.com:7050 (grpcs://orderer.example.com:7050)
20:33:37.610 [main] ERROR org.hyperledger.fabric.sdk.Channel - Future completed exceptionally: sendTransaction
java.lang.Exception: Channel mychannel failed to place transaction f74ccf9c6b1a8bb17a9f1d242f73b5b7970f2dc48b235dedf8578b2470f9e837 on Orderer. Cause: UNSUCCESSFUL. 
	at org.hyperledger.fabric.sdk.Channel.doSendTransaction(Channel.java:5415) ~[fabric-sdk-java-1.4.11.jar:?]
	at org.hyperledger.fabric.sdk.Channel.sendTransaction(Channel.java:5207) [fabric-sdk-java-1.4.11.jar:?]
	at org.hyperledger.fabric.gateway.impl.TransactionImpl.commitTransaction(TransactionImpl.java:138) [fabric-gateway-java-1.4.5.jar:?]
	at org.hyperledger.fabric.gateway.impl.TransactionImpl.submit(TransactionImpl.java:96) [fabric-gateway-java-1.4.5.jar:?]
	at org.hyperledger.fabric.gateway.impl.ContractImpl.submitTransaction(ContractImpl.java:50) [fabric-gateway-java-1.4.5.jar:?]
	at datasharing.Sample.uploadLog(Sample.java:68) [classes/:?]
	at datasharing.Sample.main(Sample.java:31) [classes/:?]
Caused by: java.lang.Exception: Channel mychannel unsuccessful sendTransaction to orderer orderer.example.com:7050 (grpcs://orderer.example.com:7050)
	at org.hyperledger.fabric.sdk.Channel.doSendTransaction(Channel.java:5394) ~[fabric-sdk-java-1.4.11.jar:?]
	... 6 more
Caused by: org.hyperledger.fabric.sdk.exception.TransactionException: Channel mychannel, send transaction failed on orderer OrdererClient{id: 17, channel: mychannel, name: orderer.example.com:7050, url: grpcs://orderer.example.com:7050}. Reason: UNAVAILABLE: io exception
	at org.hyperledger.fabric.sdk.OrdererClient.sendTransaction(OrdererClient.java:236) ~[fabric-sdk-java-1.4.11.jar:?]
	at org.hyperledger.fabric.sdk.Orderer.sendTransaction(Orderer.java:164) ~[fabric-sdk-java-1.4.11.jar:?]
	at org.hyperledger.fabric.sdk.Channel.doSendTransaction(Channel.java:5376) ~[fabric-sdk-java-1.4.11.jar:?]
	... 6 more
Caused by: io.grpc.StatusRuntimeException: UNAVAILABLE: io exception
	at io.grpc.Status.asRuntimeException(Status.java:533) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.stub.ClientCalls$StreamObserverToCallListenerAdapter.onClose(ClientCalls.java:442) ~[grpc-stub-1.23.0.jar:1.23.0]
	at io.grpc.PartialForwardingClientCallListener.onClose(PartialForwardingClientCallListener.java:39) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:23) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.ForwardingClientCallListener$SimpleForwardingClientCallListener.onClose(ForwardingClientCallListener.java:40) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.internal.CensusStatsModule$StatsClientInterceptor$1$1.onClose(CensusStatsModule.java:700) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.PartialForwardingClientCallListener.onClose(PartialForwardingClientCallListener.java:39) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:23) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.ForwardingClientCallListener$SimpleForwardingClientCallListener.onClose(ForwardingClientCallListener.java:40) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.internal.CensusTracingModule$TracingClientInterceptor$1$1.onClose(CensusTracingModule.java:399) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl.closeObserver(ClientCallImpl.java:510) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl.access$300(ClientCallImpl.java:66) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.close(ClientCallImpl.java:630) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.access$700(ClientCallImpl.java:518) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInternal(ClientCallImpl.java:692) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInContext(ClientCallImpl.java:681) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123) ~[grpc-core-1.23.0.jar:1.23.0]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130) ~[?:?]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630) ~[?:?]
	at java.lang.Thread.run(Thread.java:832) ~[?:?]
Caused by: io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: no further information: orderer.example.com/121.33.215.154:7050
Caused by: java.net.ConnectException: Connection refused: no further information
	at sun.nio.ch.Net.pollConnect(Native Method) ~[?:?]
	at sun.nio.ch.Net.pollConnectNow(Net.java:589) ~[?:?]
	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:839) ~[?:?]
	at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:327) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:336) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:685) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:632) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:549) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:511) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918) ~[netty-common-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.38.Final.jar:4.1.38.Final]
	at java.lang.Thread.run(Thread.java:832) ~[?:?]
Exception in thread "main" org.hyperledger.fabric.gateway.ContractException: Failed to send transaction to the orderer
	at org.hyperledger.fabric.gateway.impl.TransactionImpl.commitTransaction(TransactionImpl.java:145)
	at org.hyperledger.fabric.gateway.impl.TransactionImpl.submit(TransactionImpl.java:96)
	at org.hyperledger.fabric.gateway.impl.ContractImpl.submitTransaction(ContractImpl.java:50)
	at datasharing.Sample.uploadLog(Sample.java:68)
	at datasharing.Sample.main(Sample.java:31)
Caused by: java.util.concurrent.ExecutionException: java.lang.Exception: Channel mychannel failed to place transaction f74ccf9c6b1a8bb17a9f1d242f73b5b7970f2dc48b235dedf8578b2470f9e837 on Orderer. Cause: UNSUCCESSFUL. 
	at java.base/java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:395)
	at java.base/java.util.concurrent.CompletableFuture.get(CompletableFuture.java:2086)
	at org.hyperledger.fabric.gateway.impl.TransactionImpl.commitTransaction(TransactionImpl.java:139)
	... 4 more
Caused by: java.lang.Exception: Channel mychannel failed to place transaction f74ccf9c6b1a8bb17a9f1d242f73b5b7970f2dc48b235dedf8578b2470f9e837 on Orderer. Cause: UNSUCCESSFUL. 
	at org.hyperledger.fabric.sdk.Channel.doSendTransaction(Channel.java:5415)
	at org.hyperledger.fabric.sdk.Channel.sendTransaction(Channel.java:5207)
	at org.hyperledger.fabric.gateway.impl.TransactionImpl.commitTransaction(TransactionImpl.java:138)
	... 4 more
Caused by: java.lang.Exception: Channel mychannel unsuccessful sendTransaction to orderer orderer.example.com:7050 (grpcs://orderer.example.com:7050)
	at org.hyperledger.fabric.sdk.Channel.doSendTransaction(Channel.java:5394)
	... 6 more
Caused by: org.hyperledger.fabric.sdk.exception.TransactionException: Channel mychannel, send transaction failed on orderer OrdererClient{id: 17, channel: mychannel, name: orderer.example.com:7050, url: grpcs://orderer.example.com:7050}. Reason: UNAVAILABLE: io exception
	at org.hyperledger.fabric.sdk.OrdererClient.sendTransaction(OrdererClient.java:236)
	at org.hyperledger.fabric.sdk.Orderer.sendTransaction(Orderer.java:164)
	at org.hyperledger.fabric.sdk.Channel.doSendTransaction(Channel.java:5376)
	... 6 more
Caused by: io.grpc.StatusRuntimeException: UNAVAILABLE: io exception
	at io.grpc.Status.asRuntimeException(Status.java:533)
	at io.grpc.stub.ClientCalls$StreamObserverToCallListenerAdapter.onClose(ClientCalls.java:442)
	at io.grpc.PartialForwardingClientCallListener.onClose(PartialForwardingClientCallListener.java:39)
	at io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:23)
	at io.grpc.ForwardingClientCallListener$SimpleForwardingClientCallListener.onClose(ForwardingClientCallListener.java:40)
	at io.grpc.internal.CensusStatsModule$StatsClientInterceptor$1$1.onClose(CensusStatsModule.java:700)
	at io.grpc.PartialForwardingClientCallListener.onClose(PartialForwardingClientCallListener.java:39)
	at io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:23)
	at io.grpc.ForwardingClientCallListener$SimpleForwardingClientCallListener.onClose(ForwardingClientCallListener.java:40)
	at io.grpc.internal.CensusTracingModule$TracingClientInterceptor$1$1.onClose(CensusTracingModule.java:399)
	at io.grpc.internal.ClientCallImpl.closeObserver(ClientCallImpl.java:510)
	at io.grpc.internal.ClientCallImpl.access$300(ClientCallImpl.java:66)
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.close(ClientCallImpl.java:630)
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.access$700(ClientCallImpl.java:518)
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInternal(ClientCallImpl.java:692)
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInContext(ClientCallImpl.java:681)
	at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37)
	at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630)
	at java.base/java.lang.Thread.run(Thread.java:832)
Caused by: io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: no further information: orderer.example.com/121.33.215.154:7050
Caused by: java.net.ConnectException: Connection refused: no further information
	at java.base/sun.nio.ch.Net.pollConnect(Native Method)
	at java.base/sun.nio.ch.Net.pollConnectNow(Net.java:589)
	at java.base/sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:839)
	at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:327)
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:336)
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:685)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:632)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:549)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:511)
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918)
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
	at java.base/java.lang.Thread.run(Thread.java:832)

solution

remote server port not open, open after no problem.

Failed to execute goal on project XXXX-api: Could not resolve dependencies for pro

Failed to execute goal on project XXXX-api: Could not resolve dependencies for pro***************************************************

today met a maven packaging error, an error message that Could not resolve dependencies for pro * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

the reason is that the package name path was modified during the migration of the module. Try all kinds of cleanup and finally mention cleanup top level pom. XML

in a know reply

execute maven clean, then execute maven install and then repackage the specified module.

if the package is still wrong, please carefully check the reference package path and the real module package path are consistent;

Failed to instantiate [org.springframework.aop.aspectj.AspectJExpressionPointcut]: No default constr

error when learning the fourth edition of spring in action AOP book: 

警告: Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'knight' defined in class path resource [resources/minstrel.xml]: BeanPostProcessor before instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.aop.aspectj.AspectJPointcutAdvisor#0': Cannot create inner bean '(inner bean)#1784306' of type [org.springframework.aop.aspectj.AspectJMethodBeforeAdvice] while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#1784306': Cannot resolve reference to bean 'embark' while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'embark': Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.aop.aspectj.AspectJExpressionPointcut]: No default constructor found; nested exception is java.lang.NoClassDefFoundError: org/aspectj/weaver/reflect/ReflectionWorld$ReflectionWorldException
Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'knight' defined in class path resource [resources/minstrel.xml]: BeanPostProcessor before instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.aop.aspectj.AspectJPointcutAdvisor#0': Cannot create inner bean '(inner bean)#1784306' of type [org.springframework.aop.aspectj.AspectJMethodBeforeAdvice] while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#1784306': Cannot resolve reference to bean 'embark' while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'embark': Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.aop.aspectj.AspectJExpressionPointcut]: No default constructor found; nested exception is java.lang.NoClassDefFoundError: org/aspectj/weaver/reflect/ReflectionWorld$ReflectionWorldException
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:479)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:312)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:308)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:761)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543)
	at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
	at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)
	at main.java.sia.knights.KnightMain.main(KnightMain.java:9)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.aop.aspectj.AspectJPointcutAdvisor#0': Cannot create inner bean '(inner bean)#1784306' of type [org.springframework.aop.aspectj.AspectJMethodBeforeAdvice] while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#1784306': Cannot resolve reference to bean 'embark' while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'embark': Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.aop.aspectj.AspectJExpressionPointcut]: No default constructor found; nested exception is java.lang.NoClassDefFoundError: org/aspectj/weaver/reflect/ReflectionWorld$ReflectionWorldException
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:313)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:129)
	at org.springframework.beans.factory.support.ConstructorResolver.resolveConstructorArguments(ConstructorResolver.java:648)
	at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:145)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1201)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1103)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:312)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:308)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
	at org.springframework.aop.framework.autoproxy.BeanFactoryAdvisorRetrievalHelper.findAdvisorBeans(BeanFactoryAdvisorRetrievalHelper.java:92)
	at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.findCandidateAdvisors(AbstractAdvisorAutoProxyCreator.java:102)
	at org.springframework.aop.aspectj.autoproxy.AspectJAwareAdvisorAutoProxyCreator.shouldSkip(AspectJAwareAdvisorAutoProxyCreator.java:103)
	at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.postProcessBeforeInstantiation(AbstractAutoProxyCreator.java:248)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInstantiation(AbstractAutowireCapableBeanFactory.java:1045)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.resolveBeforeInstantiation(AbstractAutowireCapableBeanFactory.java:1019)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:473)
	... 10 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#1784306': Cannot resolve reference to bean 'embark' while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'embark': Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.aop.aspectj.AspectJExpressionPointcut]: No default constructor found; nested exception is java.lang.NoClassDefFoundError: org/aspectj/weaver/reflect/ReflectionWorld$ReflectionWorldException
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:359)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:108)
	at org.springframework.beans.factory.support.ConstructorResolver.resolveConstructorArguments(ConstructorResolver.java:634)
	at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:145)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1201)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1103)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:299)
	... 28 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'embark': Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.aop.aspectj.AspectJExpressionPointcut]: No default constructor found; nested exception is java.lang.NoClassDefFoundError: org/aspectj/weaver/reflect/ReflectionWorld$ReflectionWorldException
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1163)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1107)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:331)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:351)
	... 36 more
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.aop.aspectj.AspectJExpressionPointcut]: No default constructor found; nested exception is java.lang.NoClassDefFoundError: org/aspectj/weaver/reflect/ReflectionWorld$ReflectionWorldException
	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:85)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1155)
	... 42 more
Caused by: java.lang.NoClassDefFoundError: org/aspectj/weaver/reflect/ReflectionWorld$ReflectionWorldException
	at java.lang.Class.getDeclaredConstructors0(Native Method)
	at java.lang.Class.privateGetDeclaredConstructors(Class.java:2671)
	at java.lang.Class.getConstructor0(Class.java:3075)
	at java.lang.Class.getDeclaredConstructor(Class.java:2178)
	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:80)
	... 43 more
Caused by: java.lang.ClassNotFoundException: org.aspectj.weaver.reflect.ReflectionWorld$ReflectionWorldException
	at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	... 48 more

under the online to find the reasons, found that it is no use to import the jar package (it’s strange that I have is in accordance with the project with the idea to create a spring, why am I still missing bag), and then find is the lack of aspectjweaver – 1.9.4. Jar the jar package, in the following website to download the jar package:

https://mvnrepository.com/ download, to import the jar package, and compile: find and mistake 

七月 19, 2019 11:07:17 下午 org.springframework.context.support.ClassPathXmlApplicationContext prepareRefresh
信息: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@6a30c7: startup date [Fri Jul 19 23:07:17 CST 2019]; root of context hierarchy
七月 19, 2019 11:07:17 下午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
信息: Loading XML bean definitions from class path resource [resources/minstrel.xml]
Exception in thread "main" org.springframework.beans.factory.BeanNotOfRequiredTypeException: Bean named 'knight' is expected to be of type 'main.java.sia.knights.BraveKnight' but was actually of type 'com.sun.proxy.$Proxy2'
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:384)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
	at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1086)
	at main.java.sia.knights.KnightMain.main(KnightMain.java:12)

continue to look for reasons: spring aop proxy mix, in the XML configuration added configuration :
< Aop: aspectj – autoproxy proxy – target – class = “true”/& gt;
error resolution.
agent hybrid solution

Building Eureka_ Server error: application failed to start with classpath:file :/C:/ProgramFiles/Java/jdk

encountered this error when setting up eureka today :

"C:\Program Files\Java\jdk1.8.0_131\jre\bin\java.exe" -XX:TieredStopAtLevel=1 -noverify -Dspring.output.ansi.enabled=always -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=62441 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Djava.rmi.server.hostname=localhost -Dspring.liveBeansView.mbeanDomain -Dspring.application.admin.enabled=true "-javaagent:C:\development\idea\IntelliJ IDEA 2018.1.3\lib\idea_rt.jar=62442:C:\development\idea\IntelliJ IDEA 2018.1.3\bin" -Dfile.encoding=UTF-8 -classpath "C:\Program Files\Java\jdk1.8.0_131\jre\lib\charsets.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\deploy.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\access-bridge-64.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\cldrdata.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\dnsns.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\jaccess.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\jfxrt.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\localedata.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\nashorn.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\sunec.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\sunjce_provider.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\sunmscapi.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\sunpkcs11.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\zipfs.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\javaws.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\jce.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\jfr.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\jfxswt.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\jsse.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\management-agent.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\plugin.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\resources.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\rt.jar;C:\springboot_inaction\eurekaserver\target\classes;C:\Users\admin\.m2\repository\org\springframework\cloud\spring-cloud-starter-eureka-server\1.3.0.RC1\spring-cloud-starter-eureka-server-1.3.0.RC1.jar;C:\Users\admin\.m2\repository\org\springframework\cloud\spring-cloud-starter\1.2.0.RC1\spring-cloud-starter-1.2.0.RC1.jar;C:\Users\admin\.m2\repository\org\springframework\cloud\spring-cloud-context\1.2.0.RC1\spring-cloud-context-1.2.0.RC1.jar;C:\Users\admin\.m2\repository\org\springframework\security\spring-security-crypto\5.1.5.RELEASE\spring-security-crypto-5.1.5.RELEASE.jar;C:\Users\admin\.m2\repository\org\springframework\cloud\spring-cloud-commons\1.2.0.RC1\spring-cloud-commons-1.2.0.RC1.jar;C:\Users\admin\.m2\repository\org\springframework\security\spring-security-rsa\1.0.3.RELEASE\spring-security-rsa-1.0.3.RELEASE.jar;C:\Users\admin\.m2\repository\org\bouncycastle\bcpkix-jdk15on\1.55\bcpkix-jdk15on-1.55.jar;C:\Users\admin\.m2\repository\org\bouncycastle\bcprov-jdk15on\1.55\bcprov-jdk15on-1.55.jar;C:\Users\admin\.m2\repository\org\springframework\cloud\spring-cloud-netflix-eureka-server\1.3.0.RC1\spring-cloud-netflix-eureka-server-1.3.0.RC1.jar;C:\Users\admin\.m2\repository\org\springframework\boot\spring-boot-starter-web\2.1.6.RELEASE\spring-boot-starter-web-2.1.6.RELEASE.jar;C:\Users\admin\.m2\repository\org\springframework\boot\spring-boot-starter-json\2.1.6.RELEASE\spring-boot-starter-json-2.1.6.RELEASE.jar;C:\Users\admin\.m2\repository\com\fasterxml\jackson\datatype\jackson-datatype-jdk8\2.9.9\jackson-datatype-jdk8-2.9.9.jar;C:\Users\admin\.m2\repository\com\fasterxml\jackson\datatype\jackson-datatype-jsr310\2.9.9\jackson-datatype-jsr310-2.9.9.jar;C:\Users\admin\.m2\repository\com\fasterxml\jackson\module\jackson-module-parameter-names\2.9.9\jackson-module-parameter-names-2.9.9.jar;C:\Users\admin\.m2\repository\org\springframework\boot\spring-boot-starter-tomcat\2.1.6.RELEASE\spring-boot-starter-tomcat-2.1.6.RELEASE.jar;C:\Users\admin\.m2\repository\org\apache\tomcat\embed\tomcat-embed-core\9.0.21\tomcat-embed-core-9.0.21.jar;C:\Users\admin\.m2\repository\org\apache\tomcat\embed\tomcat-embed-el\9.0.21\tomcat-embed-el-9.0.21.jar;C:\Users\admin\.m2\repository\org\apache\tomcat\embed\tomcat-embed-websocket\9.0.21\tomcat-embed-websocket-9.0.21.jar;C:\Users\admin\.m2\repository\org\hibernate\validator\hibernate-validator\6.0.17.Final\hibernate-validator-6.0.17.Final.jar;C:\Users\admin\.m2\repository\javax\validation\validation-api\2.0.1.Final\validation-api-2.0.1.Final.jar;C:\Users\admin\.m2\repository\org\jboss\logging\jboss-logging\3.3.2.Final\jboss-logging-3.3.2.Final.jar;C:\Users\admin\.m2\repository\com\fasterxml\classmate\1.4.0\classmate-1.4.0.jar;C:\Users\admin\.m2\repository\org\springframework\spring-web\5.1.8.RELEASE\spring-web-5.1.8.RELEASE.jar;C:\Users\admin\.m2\repository\org\springframework\spring-beans\5.1.8.RELEASE\spring-beans-5.1.8.RELEASE.jar;C:\Users\admin\.m2\repository\org\springframework\spring-webmvc\5.1.8.RELEASE\spring-webmvc-5.1.8.RELEASE.jar;C:\Users\admin\.m2\repository\org\springframework\spring-aop\5.1.8.RELEASE\spring-aop-5.1.8.RELEASE.jar;C:\Users\admin\.m2\repository\org\springframework\spring-expression\5.1.8.RELEASE\spring-expression-5.1.8.RELEASE.jar;C:\Users\admin\.m2\repository\org\springframework\boot\spring-boot-starter-actuator\2.1.6.RELEASE\spring-boot-starter-actuator-2.1.6.RELEASE.jar;C:\Users\admin\.m2\repository\org\springframework\boot\spring-boot-actuator-autoconfigure\2.1.6.RELEASE\spring-boot-actuator-autoconfigure-2.1.6.RELEASE.jar;C:\Users\admin\.m2\repository\org\springframework\boot\spring-boot-actuator\2.1.6.RELEASE\spring-boot-actuator-2.1.6.RELEASE.jar;C:\Users\admin\.m2\repository\io\micrometer\micrometer-core\1.1.5\micrometer-core-1.1.5.jar;C:\Users\admin\.m2\repository\org\hdrhistogram\HdrHistogram\2.1.9\HdrHistogram-2.1.9.jar;C:\Users\admin\.m2\repository\org\latencyutils\LatencyUtils\2.0.3\LatencyUtils-2.0.3.jar;C:\Users\admin\.m2\repository\org\springframework\boot\spring-boot-starter-freemarker\2.1.6.RELEASE\spring-boot-starter-freemarker-2.1.6.RELEASE.jar;C:\Users\admin\.m2\repository\org\freemarker\freemarker\2.3.28\freemarker-2.3.28.jar;C:\Users\admin\.m2\repository\org\springframework\spring-context-support\5.1.8.RELEASE\spring-context-support-5.1.8.RELEASE.jar;C:\Users\admin\.m2\repository\org\springframework\cloud\spring-cloud-netflix-core\1.3.0.RC1\spring-cloud-netflix-core-1.3.0.RC1.jar;C:\Users\admin\.m2\repository\org\springframework\cloud\spring-cloud-netflix-eureka-client\1.3.0.RC1\spring-cloud-netflix-eureka-client-1.3.0.RC1.jar;C:\Users\admin\.m2\repository\com\netflix\eureka\eureka-client\1.6.1\eureka-client-1.6.1.jar;C:\Users\admin\.m2\repository\org\codehaus\jettison\jettison\1.3.7\jettison-1.3.7.jar;C:\Users\admin\.m2\repository\stax\stax-api\1.0.1\stax-api-1.0.1.jar;C:\Users\admin\.m2\repository\com\netflix\netflix-commons\netflix-eventbus\0.3.0\netflix-eventbus-0.3.0.jar;C:\Users\admin\.m2\repository\com\netflix\netflix-commons\netflix-infix\0.3.0\netflix-infix-0.3.0.jar;C:\Users\admin\.m2\repository\commons-jxpath\commons-jxpath\1.3\commons-jxpath-1.3.jar;C:\Users\admin\.m2\repository\joda-time\joda-time\2.10.2\joda-time-2.10.2.jar;C:\Users\admin\.m2\repository\org\antlr\antlr-runtime\3.4\antlr-runtime-3.4.jar;C:\Users\admin\.m2\repository\org\antlr\stringtemplate\3.2.1\stringtemplate-3.2.1.jar;C:\Users\admin\.m2\repository\antlr\antlr\2.7.7\antlr-2.7.7.jar;C:\Users\admin\.m2\repository\com\google\code\gson\gson\2.8.5\gson-2.8.5.jar;C:\Users\admin\.m2\repository\org\apache\commons\commons-math\2.2\commons-math-2.2.jar;C:\Users\admin\.m2\repository\javax\ws\rs\jsr311-api\1.1.1\jsr311-api-1.1.1.jar;C:\Users\admin\.m2\repository\com\netflix\servo\servo-core\0.10.1\servo-core-0.10.1.jar;C:\Users\admin\.m2\repository\com\netflix\servo\servo-internal\0.10.1\servo-internal-0.10.1.jar;C:\Users\admin\.m2\repository\com\sun\jersey\jersey-core\1.19.1\jersey-core-1.19.1.jar;C:\Users\admin\.m2\repository\com\sun\jersey\jersey-client\1.19.1\jersey-client-1.19.1.jar;C:\Users\admin\.m2\repository\com\sun\jersey\contribs\jersey-apache-client4\1.19.1\jersey-apache-client4-1.19.1.jar;C:\Users\admin\.m2\repository\org\apache\httpcomponents\httpclient\4.5.9\httpclient-4.5.9.jar;C:\Users\admin\.m2\repository\org\apache\httpcomponents\httpcore\4.4.11\httpcore-4.4.11.jar;C:\Users\admin\.m2\repository\commons-codec\commons-codec\1.11\commons-codec-1.11.jar;C:\Users\admin\.m2\repository\com\google\inject\guice\4.1.0\guice-4.1.0.jar;C:\Users\admin\.m2\repository\aopalliance\aopalliance\1.0\aopalliance-1.0.jar;C:\Users\admin\.m2\repository\com\sun\jersey\jersey-servlet\1.19.1\jersey-servlet-1.19.1.jar;C:\Users\admin\.m2\repository\com\sun\jersey\jersey-server\1.19.1\jersey-server-1.19.1.jar;C:\Users\admin\.m2\repository\com\netflix\eureka\eureka-core\1.6.1\eureka-core-1.6.1.jar;C:\Users\admin\.m2\repository\com\netflix\governator\governator\1.12.10\governator-1.12.10.jar;C:\Users\admin\.m2\repository\com\netflix\governator\governator-api\1.12.10\governator-api-1.12.10.jar;C:\Users\admin\.m2\repository\com\netflix\governator\governator-core\1.12.10\governator-core-1.12.10.jar;C:\Users\admin\.m2\repository\com\google\inject\extensions\guice-multibindings\4.0\guice-multibindings-4.0.jar;C:\Users\admin\.m2\repository\com\google\inject\extensions\guice-grapher\4.0\guice-grapher-4.0.jar;C:\Users\admin\.m2\repository\com\google\inject\extensions\guice-assistedinject\4.0\guice-assistedinject-4.0.jar;C:\Users\admin\.m2\repository\org\hibernate\hibernate-validator\4.1.0.Final\hibernate-validator-4.1.0.Final.jar;C:\Users\admin\.m2\repository\org\ow2\asm\asm\5.0.4\asm-5.0.4.jar;C:\Users\admin\.m2\repository\org\codehaus\woodstox\woodstox-core-asl\4.4.1\woodstox-core-asl-4.4.1.jar;C:\Users\admin\.m2\repository\javax\xml\stream\stax-api\1.0-2\stax-api-1.0-2.jar;C:\Users\admin\.m2\repository\com\netflix\archaius\archaius-core\0.7.4\archaius-core-0.7.4.jar;C:\Users\admin\.m2\repository\com\google\code\findbugs\jsr305\3.0.1\jsr305-3.0.1.jar;C:\Users\admin\.m2\repository\javax\inject\javax.inject\1\javax.inject-1.jar;C:\Users\admin\.m2\repository\com\fasterxml\jackson\dataformat\jackson-dataformat-xml\2.9.9\jackson-dataformat-xml-2.9.9.jar;C:\Users\admin\.m2\repository\com\fasterxml\jackson\module\jackson-module-jaxb-annotations\2.9.9\jackson-module-jaxb-annotations-2.9.9.jar;C:\Users\admin\.m2\repository\org\codehaus\woodstox\stax2-api\3.1.4\stax2-api-3.1.4.jar;C:\Users\admin\.m2\repository\com\fasterxml\woodstox\woodstox-core\5.0.3\woodstox-core-5.0.3.jar;C:\Users\admin\.m2\repository\com\thoughtworks\xstream\xstream\1.4.9\xstream-1.4.9.jar;C:\Users\admin\.m2\repository\xmlpull\xmlpull\1.1.3.1\xmlpull-1.1.3.1.jar;C:\Users\admin\.m2\repository\xpp3\xpp3_min\1.1.4c\xpp3_min-1.1.4c.jar;C:\Users\admin\.m2\repository\org\springframework\cloud\spring-cloud-starter-archaius\1.3.0.RC1\spring-cloud-starter-archaius-1.3.0.RC1.jar;C:\Users\admin\.m2\repository\commons-configuration\commons-configuration\1.8\commons-configuration-1.8.jar;C:\Users\admin\.m2\repository\commons-lang\commons-lang\2.6\commons-lang-2.6.jar;C:\Users\admin\.m2\repository\com\fasterxml\jackson\core\jackson-annotations\2.9.0\jackson-annotations-2.9.0.jar;C:\Users\admin\.m2\repository\com\fasterxml\jackson\core\jackson-core\2.9.9\jackson-core-2.9.9.jar;C:\Users\admin\.m2\repository\com\fasterxml\jackson\core\jackson-databind\2.9.9\jackson-databind-2.9.9.jar;C:\Users\admin\.m2\repository\com\google\guava\guava\18.0\guava-18.0.jar;C:\Users\admin\.m2\repository\org\springframework\cloud\spring-cloud-starter-ribbon\1.3.0.RC1\spring-cloud-starter-ribbon-1.3.0.RC1.jar;C:\Users\admin\.m2\repository\com\netflix\ribbon\ribbon\2.2.2\ribbon-2.2.2.jar;C:\Users\admin\.m2\repository\com\netflix\ribbon\ribbon-transport\2.2.2\ribbon-transport-2.2.2.jar;C:\Users\admin\.m2\repository\io\reactivex\rxnetty-contexts\0.4.9\rxnetty-contexts-0.4.9.jar;C:\Users\admin\.m2\repository\io\reactivex\rxnetty-servo\0.4.9\rxnetty-servo-0.4.9.jar;C:\Users\admin\.m2\repository\com\netflix\hystrix\hystrix-core\1.5.10\hystrix-core-1.5.10.jar;C:\Users\admin\.m2\repository\io\reactivex\rxnetty\0.4.9\rxnetty-0.4.9.jar;C:\Users\admin\.m2\repository\io\netty\netty-codec-http\4.1.36.Final\netty-codec-http-4.1.36.Final.jar;C:\Users\admin\.m2\repository\io\netty\netty-common\4.1.36.Final\netty-common-4.1.36.Final.jar;C:\Users\admin\.m2\repository\io\netty\netty-buffer\4.1.36.Final\netty-buffer-4.1.36.Final.jar;C:\Users\admin\.m2\repository\io\netty\netty-transport\4.1.36.Final\netty-transport-4.1.36.Final.jar;C:\Users\admin\.m2\repository\io\netty\netty-resolver\4.1.36.Final\netty-resolver-4.1.36.Final.jar;C:\Users\admin\.m2\repository\io\netty\netty-codec\4.1.36.Final\netty-codec-4.1.36.Final.jar;C:\Users\admin\.m2\repository\io\netty\netty-handler\4.1.36.Final\netty-handler-4.1.36.Final.jar;C:\Users\admin\.m2\repository\io\netty\netty-transport-native-epoll\4.1.36.Final\netty-transport-native-epoll-4.1.36.Final.jar;C:\Users\admin\.m2\repository\io\netty\netty-transport-native-unix-common\4.1.36.Final\netty-transport-native-unix-common-4.1.36.Final.jar;C:\Users\admin\.m2\repository\com\netflix\ribbon\ribbon-core\2.2.2\ribbon-core-2.2.2.jar;C:\Users\admin\.m2\repository\com\netflix\ribbon\ribbon-httpclient\2.2.2\ribbon-httpclient-2.2.2.jar;C:\Users\admin\.m2\repository\commons-collections\commons-collections\3.2.1\commons-collections-3.2.1.jar;C:\Users\admin\.m2\repository\com\netflix\netflix-commons\netflix-commons-util\0.1.1\netflix-commons-util-0.1.1.jar;C:\Users\admin\.m2\repository\com\netflix\ribbon\ribbon-loadbalancer\2.2.2\ribbon-loadbalancer-2.2.2.jar;C:\Users\admin\.m2\repository\com\netflix\netflix-commons\netflix-statistics\0.1.1\netflix-statistics-0.1.1.jar;C:\Users\admin\.m2\repository\io\reactivex\rxjava\1.3.8\rxjava-1.3.8.jar;C:\Users\admin\.m2\repository\com\netflix\ribbon\ribbon-eureka\2.2.2\ribbon-eureka-2.2.2.jar;C:\Users\admin\.m2\repository\org\slf4j\slf4j-api\1.7.26\slf4j-api-1.7.26.jar;C:\Users\admin\.m2\repository\org\springframework\boot\spring-boot-starter\2.1.6.RELEASE\spring-boot-starter-2.1.6.RELEASE.jar;C:\Users\admin\.m2\repository\org\springframework\boot\spring-boot\2.1.6.RELEASE\spring-boot-2.1.6.RELEASE.jar;C:\Users\admin\.m2\repository\org\springframework\spring-context\5.1.8.RELEASE\spring-context-5.1.8.RELEASE.jar;C:\Users\admin\.m2\repository\org\springframework\boot\spring-boot-autoconfigure\2.1.6.RELEASE\spring-boot-autoconfigure-2.1.6.RELEASE.jar;C:\Users\admin\.m2\repository\org\springframework\boot\spring-boot-starter-logging\2.1.6.RELEASE\spring-boot-starter-logging-2.1.6.RELEASE.jar;C:\Users\admin\.m2\repository\ch\qos\logback\logback-classic\1.2.3\logback-classic-1.2.3.jar;C:\Users\admin\.m2\repository\ch\qos\logback\logback-core\1.2.3\logback-core-1.2.3.jar;C:\Users\admin\.m2\repository\org\apache\logging\log4j\log4j-to-slf4j\2.11.2\log4j-to-slf4j-2.11.2.jar;C:\Users\admin\.m2\repository\org\apache\logging\log4j\log4j-api\2.11.2\log4j-api-2.11.2.jar;C:\Users\admin\.m2\repository\org\slf4j\jul-to-slf4j\1.7.26\jul-to-slf4j-1.7.26.jar;C:\Users\admin\.m2\repository\javax\annotation\javax.annotation-api\1.3.2\javax.annotation-api-1.3.2.jar;C:\Users\admin\.m2\repository\org\yaml\snakeyaml\1.23\snakeyaml-1.23.jar;C:\Users\admin\.m2\repository\org\springframework\spring-core\5.1.8.RELEASE\spring-core-5.1.8.RELEASE.jar;C:\Users\admin\.m2\repository\org\springframework\spring-jcl\5.1.8.RELEASE\spring-jcl-5.1.8.RELEASE.jar" com.action.eureka_server.EurekaServerApplication
15:19:35.217 [main] DEBUG org.springframework.boot.context.logging.ClasspathLoggingApplicationListener - Application failed to start with classpath: [file:/C:/Program%20Files/Java/jdk1.8.0_131/jre/lib/charsets.jar, file:/C:/Program%20Files/Java/jdk1.8.0_131/jre/lib/deploy.jar, file:/C:/Program%20Files/Java/jdk1.8.0_131/jre/lib/ext/access-bridge-64.jar, file:/C:/Program%20Files/Java/jdk1.8.0_131/jre/lib/ext/cldrdata.jar, file:/C:/Program%20Files/Java/jdk1.8.0_131/jre/lib/ext/dnsns.jar, file:/C:/Program%20Files/Java/jdk1.8.0_131/jre/lib/ext/jaccess.jar, file:/C:/Program%20Files/Java/jdk1.8.0_131/jre/lib/ext/jfxrt.jar, file:/C:/Program%20Files/Java/jdk1.8.0_131/jre/lib/ext/localedata.jar, file:/C:/Program%20Files/Java/jdk1.8.0_131/jre/lib/ext/nashorn.jar, file:/C:/Program%20Files/Java/jdk1.8.0_131/jre/lib/ext/sunec.jar, file:/C:/Program%20Files/Java/jdk1.8.0_131/jre/lib/ext/sunjce_provider.jar, file:/C:/Program%20Files/Java/jdk1.8.0_131/jre/lib/ext/sunmscapi.jar, file:/C:/Program%20Files/Java/jdk1.8.0_131/jre/lib/ext/sunpkcs11.jar, file:/C:/Program%20Files/Java/jdk1.8.0_131/jre/lib/ext/zipfs.jar, file:/C:/Program%20Files/Java/jdk1.8.0_131/jre/lib/javaws.jar, file:/C:/Program%20Files/Java/jdk1.8.0_131/jre/lib/jce.jar, file:/C:/Program%20Files/Java/jdk1.8.0_131/jre/lib/jfr.jar, file:/C:/Program%20Files/Java/jdk1.8.0_131/jre/lib/jfxswt.jar, file:/C:/Program%20Files/Java/jdk1.8.0_131/jre/lib/jsse.jar, file:/C:/Program%20Files/Java/jdk1.8.0_131/jre/lib/management-agent.jar, file:/C:/Program%20Files/Java/jdk1.8.0_131/jre/lib/plugin.jar, file:/C:/Program%20Files/Java/jdk1.8.0_131/jre/lib/resources.jar, file:/C:/Program%20Files/Java/jdk1.8.0_131/jre/lib/rt.jar, file:/C:/springboot_inaction/eurekaserver/target/classes/, file:/C:/Users/admin/.m2/repository/org/springframework/cloud/spring-cloud-starter-eureka-server/1.3.0.RC1/spring-cloud-starter-eureka-server-1.3.0.RC1.jar, file:/C:/Users/admin/.m2/repository/org/springframework/cloud/spring-cloud-starter/1.2.0.RC1/spring-cloud-starter-1.2.0.RC1.jar, file:/C:/Users/admin/.m2/repository/org/springframework/cloud/spring-cloud-context/1.2.0.RC1/spring-cloud-context-1.2.0.RC1.jar, file:/C:/Users/admin/.m2/repository/org/springframework/security/spring-security-crypto/5.1.5.RELEASE/spring-security-crypto-5.1.5.RELEASE.jar, file:/C:/Users/admin/.m2/repository/org/springframework/cloud/spring-cloud-commons/1.2.0.RC1/spring-cloud-commons-1.2.0.RC1.jar, file:/C:/Users/admin/.m2/repository/org/springframework/security/spring-security-rsa/1.0.3.RELEASE/spring-security-rsa-1.0.3.RELEASE.jar, file:/C:/Users/admin/.m2/repository/org/bouncycastle/bcpkix-jdk15on/1.55/bcpkix-jdk15on-1.55.jar, file:/C:/Users/admin/.m2/repository/org/bouncycastle/bcprov-jdk15on/1.55/bcprov-jdk15on-1.55.jar, file:/C:/Users/admin/.m2/repository/org/springframework/cloud/spring-cloud-netflix-eureka-server/1.3.0.RC1/spring-cloud-netflix-eureka-server-1.3.0.RC1.jar, file:/C:/Users/admin/.m2/repository/org/springframework/boot/spring-boot-starter-web/2.1.6.RELEASE/spring-boot-starter-web-2.1.6.RELEASE.jar, file:/C:/Users/admin/.m2/repository/org/springframework/boot/spring-boot-starter-json/2.1.6.RELEASE/spring-boot-starter-json-2.1.6.RELEASE.jar, file:/C:/Users/admin/.m2/repository/com/fasterxml/jackson/datatype/jackson-datatype-jdk8/2.9.9/jackson-datatype-jdk8-2.9.9.jar, file:/C:/Users/admin/.m2/repository/com/fasterxml/jackson/datatype/jackson-datatype-jsr310/2.9.9/jackson-datatype-jsr310-2.9.9.jar, file:/C:/Users/admin/.m2/repository/com/fasterxml/jackson/module/jackson-module-parameter-names/2.9.9/jackson-module-parameter-names-2.9.9.jar, file:/C:/Users/admin/.m2/repository/org/springframework/boot/spring-boot-starter-tomcat/2.1.6.RELEASE/spring-boot-starter-tomcat-2.1.6.RELEASE.jar, file:/C:/Users/admin/.m2/repository/org/apache/tomcat/embed/tomcat-embed-core/9.0.21/tomcat-embed-core-9.0.21.jar, file:/C:/Users/admin/.m2/repository/org/apache/tomcat/embed/tomcat-embed-el/9.0.21/tomcat-embed-el-9.0.21.jar, file:/C:/Users/admin/.m2/repository/org/apache/tomcat/embed/tomcat-embed-websocket/9.0.21/tomcat-embed-websocket-9.0.21.jar, file:/C:/Users/admin/.m2/repository/org/hibernate/validator/hibernate-validator/6.0.17.Final/hibernate-validator-6.0.17.Final.jar, file:/C:/Users/admin/.m2/repository/javax/validation/validation-api/2.0.1.Final/validation-api-2.0.1.Final.jar, file:/C:/Users/admin/.m2/repository/org/jboss/logging/jboss-logging/3.3.2.Final/jboss-logging-3.3.2.Final.jar, file:/C:/Users/admin/.m2/repository/com/fasterxml/classmate/1.4.0/classmate-1.4.0.jar, file:/C:/Users/admin/.m2/repository/org/springframework/spring-web/5.1.8.RELEASE/spring-web-5.1.8.RELEASE.jar, file:/C:/Users/admin/.m2/repository/org/springframework/spring-beans/5.1.8.RELEASE/spring-beans-5.1.8.RELEASE.jar, file:/C:/Users/admin/.m2/repository/org/springframework/spring-webmvc/5.1.8.RELEASE/spring-webmvc-5.1.8.RELEASE.jar, file:/C:/Users/admin/.m2/repository/org/springframework/spring-aop/5.1.8.RELEASE/spring-aop-5.1.8.RELEASE.jar, file:/C:/Users/admin/.m2/repository/org/springframework/spring-expression/5.1.8.RELEASE/spring-expression-5.1.8.RELEASE.jar, file:/C:/Users/admin/.m2/repository/org/springframework/boot/spring-boot-starter-actuator/2.1.6.RELEASE/spring-boot-starter-actuator-2.1.6.RELEASE.jar, file:/C:/Users/admin/.m2/repository/org/springframework/boot/spring-boot-actuator-autoconfigure/2.1.6.RELEASE/spring-boot-actuator-autoconfigure-2.1.6.RELEASE.jar, file:/C:/Users/admin/.m2/repository/org/springframework/boot/spring-boot-actuator/2.1.6.RELEASE/spring-boot-actuator-2.1.6.RELEASE.jar, file:/C:/Users/admin/.m2/repository/io/micrometer/micrometer-core/1.1.5/micrometer-core-1.1.5.jar, file:/C:/Users/admin/.m2/repository/org/hdrhistogram/HdrHistogram/2.1.9/HdrHistogram-2.1.9.jar, file:/C:/Users/admin/.m2/repository/org/latencyutils/LatencyUtils/2.0.3/LatencyUtils-2.0.3.jar, file:/C:/Users/admin/.m2/repository/org/springframework/boot/spring-boot-starter-freemarker/2.1.6.RELEASE/spring-boot-starter-freemarker-2.1.6.RELEASE.jar, file:/C:/Users/admin/.m2/repository/org/freemarker/freemarker/2.3.28/freemarker-2.3.28.jar, file:/C:/Users/admin/.m2/repository/org/springframework/spring-context-support/5.1.8.RELEASE/spring-context-support-5.1.8.RELEASE.jar, file:/C:/Users/admin/.m2/repository/org/springframework/cloud/spring-cloud-netflix-core/1.3.0.RC1/spring-cloud-netflix-core-1.3.0.RC1.jar, file:/C:/Users/admin/.m2/repository/org/springframework/cloud/spring-cloud-netflix-eureka-client/1.3.0.RC1/spring-cloud-netflix-eureka-client-1.3.0.RC1.jar, file:/C:/Users/admin/.m2/repository/com/netflix/eureka/eureka-client/1.6.1/eureka-client-1.6.1.jar, file:/C:/Users/admin/.m2/repository/org/codehaus/jettison/jettison/1.3.7/jettison-1.3.7.jar, file:/C:/Users/admin/.m2/repository/stax/stax-api/1.0.1/stax-api-1.0.1.jar, file:/C:/Users/admin/.m2/repository/com/netflix/netflix-commons/netflix-eventbus/0.3.0/netflix-eventbus-0.3.0.jar, file:/C:/Users/admin/.m2/repository/com/netflix/netflix-commons/netflix-infix/0.3.0/netflix-infix-0.3.0.jar, file:/C:/Users/admin/.m2/repository/commons-jxpath/commons-jxpath/1.3/commons-jxpath-1.3.jar, file:/C:/Users/admin/.m2/repository/joda-time/joda-time/2.10.2/joda-time-2.10.2.jar, file:/C:/Users/admin/.m2/repository/org/antlr/antlr-runtime/3.4/antlr-runtime-3.4.jar, file:/C:/Users/admin/.m2/repository/org/antlr/stringtemplate/3.2.1/stringtemplate-3.2.1.jar, file:/C:/Users/admin/.m2/repository/antlr/antlr/2.7.7/antlr-2.7.7.jar, file:/C:/Users/admin/.m2/repository/com/google/code/gson/gson/2.8.5/gson-2.8.5.jar, file:/C:/Users/admin/.m2/repository/org/apache/commons/commons-math/2.2/commons-math-2.2.jar, file:/C:/Users/admin/.m2/repository/javax/ws/rs/jsr311-api/1.1.1/jsr311-api-1.1.1.jar, file:/C:/Users/admin/.m2/repository/com/netflix/servo/servo-core/0.10.1/servo-core-0.10.1.jar, file:/C:/Users/admin/.m2/repository/com/netflix/servo/servo-internal/0.10.1/servo-internal-0.10.1.jar, file:/C:/Users/admin/.m2/repository/com/sun/jersey/jersey-core/1.19.1/jersey-core-1.19.1.jar, file:/C:/Users/admin/.m2/repository/com/sun/jersey/jersey-client/1.19.1/jersey-client-1.19.1.jar, file:/C:/Users/admin/.m2/repository/com/sun/jersey/contribs/jersey-apache-client4/1.19.1/jersey-apache-client4-1.19.1.jar, file:/C:/Users/admin/.m2/repository/org/apache/httpcomponents/httpclient/4.5.9/httpclient-4.5.9.jar, file:/C:/Users/admin/.m2/repository/org/apache/httpcomponents/httpcore/4.4.11/httpcore-4.4.11.jar, file:/C:/Users/admin/.m2/repository/commons-codec/commons-codec/1.11/commons-codec-1.11.jar, file:/C:/Users/admin/.m2/repository/com/google/inject/guice/4.1.0/guice-4.1.0.jar, file:/C:/Users/admin/.m2/repository/aopalliance/aopalliance/1.0/aopalliance-1.0.jar, file:/C:/Users/admin/.m2/repository/com/sun/jersey/jersey-servlet/1.19.1/jersey-servlet-1.19.1.jar, file:/C:/Users/admin/.m2/repository/com/sun/jersey/jersey-server/1.19.1/jersey-server-1.19.1.jar, file:/C:/Users/admin/.m2/repository/com/netflix/eureka/eureka-core/1.6.1/eureka-core-1.6.1.jar, file:/C:/Users/admin/.m2/repository/com/netflix/governator/governator/1.12.10/governator-1.12.10.jar, file:/C:/Users/admin/.m2/repository/com/netflix/governator/governator-api/1.12.10/governator-api-1.12.10.jar, file:/C:/Users/admin/.m2/repository/com/netflix/governator/governator-core/1.12.10/governator-core-1.12.10.jar, file:/C:/Users/admin/.m2/repository/com/google/inject/extensions/guice-multibindings/4.0/guice-multibindings-4.0.jar, file:/C:/Users/admin/.m2/repository/com/google/inject/extensions/guice-grapher/4.0/guice-grapher-4.0.jar, file:/C:/Users/admin/.m2/repository/com/google/inject/extensions/guice-assistedinject/4.0/guice-assistedinject-4.0.jar, file:/C:/Users/admin/.m2/repository/org/hibernate/hibernate-validator/4.1.0.Final/hibernate-validator-4.1.0.Final.jar, file:/C:/Users/admin/.m2/repository/org/ow2/asm/asm/5.0.4/asm-5.0.4.jar, file:/C:/Users/admin/.m2/repository/org/codehaus/woodstox/woodstox-core-asl/4.4.1/woodstox-core-asl-4.4.1.jar, file:/C:/Users/admin/.m2/repository/javax/xml/stream/stax-api/1.0-2/stax-api-1.0-2.jar, file:/C:/Users/admin/.m2/repository/com/netflix/archaius/archaius-core/0.7.4/archaius-core-0.7.4.jar, file:/C:/Users/admin/.m2/repository/com/google/code/findbugs/jsr305/3.0.1/jsr305-3.0.1.jar, file:/C:/Users/admin/.m2/repository/javax/inject/javax.inject/1/javax.inject-1.jar, file:/C:/Users/admin/.m2/repository/com/fasterxml/jackson/dataformat/jackson-dataformat-xml/2.9.9/jackson-dataformat-xml-2.9.9.jar, file:/C:/Users/admin/.m2/repository/com/fasterxml/jackson/module/jackson-module-jaxb-annotations/2.9.9/jackson-module-jaxb-annotations-2.9.9.jar, file:/C:/Users/admin/.m2/repository/org/codehaus/woodstox/stax2-api/3.1.4/stax2-api-3.1.4.jar, file:/C:/Users/admin/.m2/repository/com/fasterxml/woodstox/woodstox-core/5.0.3/woodstox-core-5.0.3.jar, file:/C:/Users/admin/.m2/repository/com/thoughtworks/xstream/xstream/1.4.9/xstream-1.4.9.jar, file:/C:/Users/admin/.m2/repository/xmlpull/xmlpull/1.1.3.1/xmlpull-1.1.3.1.jar, file:/C:/Users/admin/.m2/repository/xpp3/xpp3_min/1.1.4c/xpp3_min-1.1.4c.jar, file:/C:/Users/admin/.m2/repository/org/springframework/cloud/spring-cloud-starter-archaius/1.3.0.RC1/spring-cloud-starter-archaius-1.3.0.RC1.jar, file:/C:/Users/admin/.m2/repository/commons-configuration/commons-configuration/1.8/commons-configuration-1.8.jar, file:/C:/Users/admin/.m2/repository/commons-lang/commons-lang/2.6/commons-lang-2.6.jar, file:/C:/Users/admin/.m2/repository/com/fasterxml/jackson/core/jackson-annotations/2.9.0/jackson-annotations-2.9.0.jar, file:/C:/Users/admin/.m2/repository/com/fasterxml/jackson/core/jackson-core/2.9.9/jackson-core-2.9.9.jar, file:/C:/Users/admin/.m2/repository/com/fasterxml/jackson/core/jackson-databind/2.9.9/jackson-databind-2.9.9.jar, file:/C:/Users/admin/.m2/repository/com/google/guava/guava/18.0/guava-18.0.jar, file:/C:/Users/admin/.m2/repository/org/springframework/cloud/spring-cloud-starter-ribbon/1.3.0.RC1/spring-cloud-starter-ribbon-1.3.0.RC1.jar, file:/C:/Users/admin/.m2/repository/com/netflix/ribbon/ribbon/2.2.2/ribbon-2.2.2.jar, file:/C:/Users/admin/.m2/repository/com/netflix/ribbon/ribbon-transport/2.2.2/ribbon-transport-2.2.2.jar, file:/C:/Users/admin/.m2/repository/io/reactivex/rxnetty-contexts/0.4.9/rxnetty-contexts-0.4.9.jar, file:/C:/Users/admin/.m2/repository/io/reactivex/rxnetty-servo/0.4.9/rxnetty-servo-0.4.9.jar, file:/C:/Users/admin/.m2/repository/com/netflix/hystrix/hystrix-core/1.5.10/hystrix-core-1.5.10.jar, file:/C:/Users/admin/.m2/repository/io/reactivex/rxnetty/0.4.9/rxnetty-0.4.9.jar, file:/C:/Users/admin/.m2/repository/io/netty/netty-codec-http/4.1.36.Final/netty-codec-http-4.1.36.Final.jar, file:/C:/Users/admin/.m2/repository/io/netty/netty-common/4.1.36.Final/netty-common-4.1.36.Final.jar, file:/C:/Users/admin/.m2/repository/io/netty/netty-buffer/4.1.36.Final/netty-buffer-4.1.36.Final.jar, file:/C:/Users/admin/.m2/repository/io/netty/netty-transport/4.1.36.Final/netty-transport-4.1.36.Final.jar, file:/C:/Users/admin/.m2/repository/io/netty/netty-resolver/4.1.36.Final/netty-resolver-4.1.36.Final.jar, file:/C:/Users/admin/.m2/repository/io/netty/netty-codec/4.1.36.Final/netty-codec-4.1.36.Final.jar, file:/C:/Users/admin/.m2/repository/io/netty/netty-handler/4.1.36.Final/netty-handler-4.1.36.Final.jar, file:/C:/Users/admin/.m2/repository/io/netty/netty-transport-native-epoll/4.1.36.Final/netty-transport-native-epoll-4.1.36.Final.jar, file:/C:/Users/admin/.m2/repository/io/netty/netty-transport-native-unix-common/4.1.36.Final/netty-transport-native-unix-common-4.1.36.Final.jar, file:/C:/Users/admin/.m2/repository/com/netflix/ribbon/ribbon-core/2.2.2/ribbon-core-2.2.2.jar, file:/C:/Users/admin/.m2/repository/com/netflix/ribbon/ribbon-httpclient/2.2.2/ribbon-httpclient-2.2.2.jar, file:/C:/Users/admin/.m2/repository/commons-collections/commons-collections/3.2.1/commons-collections-3.2.1.jar, file:/C:/Users/admin/.m2/repository/com/netflix/netflix-commons/netflix-commons-util/0.1.1/netflix-commons-util-0.1.1.jar, file:/C:/Users/admin/.m2/repository/com/netflix/ribbon/ribbon-loadbalancer/2.2.2/ribbon-loadbalancer-2.2.2.jar, file:/C:/Users/admin/.m2/repository/com/netflix/netflix-commons/netflix-statistics/0.1.1/netflix-statistics-0.1.1.jar, file:/C:/Users/admin/.m2/repository/io/reactivex/rxjava/1.3.8/rxjava-1.3.8.jar, file:/C:/Users/admin/.m2/repository/com/netflix/ribbon/ribbon-eureka/2.2.2/ribbon-eureka-2.2.2.jar, file:/C:/Users/admin/.m2/repository/org/slf4j/slf4j-api/1.7.26/slf4j-api-1.7.26.jar, file:/C:/Users/admin/.m2/repository/org/springframework/boot/spring-boot-starter/2.1.6.RELEASE/spring-boot-starter-2.1.6.RELEASE.jar, file:/C:/Users/admin/.m2/repository/org/springframework/boot/spring-boot/2.1.6.RELEASE/spring-boot-2.1.6.RELEASE.jar, file:/C:/Users/admin/.m2/repository/org/springframework/spring-context/5.1.8.RELEASE/spring-context-5.1.8.RELEASE.jar, file:/C:/Users/admin/.m2/repository/org/springframework/boot/spring-boot-autoconfigure/2.1.6.RELEASE/spring-boot-autoconfigure-2.1.6.RELEASE.jar, file:/C:/Users/admin/.m2/repository/org/springframework/boot/spring-boot-starter-logging/2.1.6.RELEASE/spring-boot-starter-logging-2.1.6.RELEASE.jar, file:/C:/Users/admin/.m2/repository/ch/qos/logback/logback-classic/1.2.3/logback-classic-1.2.3.jar, file:/C:/Users/admin/.m2/repository/ch/qos/logback/logback-core/1.2.3/logback-core-1.2.3.jar, file:/C:/Users/admin/.m2/repository/org/apache/logging/log4j/log4j-to-slf4j/2.11.2/log4j-to-slf4j-2.11.2.jar, file:/C:/Users/admin/.m2/repository/org/apache/logging/log4j/log4j-api/2.11.2/log4j-api-2.11.2.jar, file:/C:/Users/admin/.m2/repository/org/slf4j/jul-to-slf4j/1.7.26/jul-to-slf4j-1.7.26.jar, file:/C:/Users/admin/.m2/repository/javax/annotation/javax.annotation-api/1.3.2/javax.annotation-api-1.3.2.jar, file:/C:/Users/admin/.m2/repository/org/yaml/snakeyaml/1.23/snakeyaml-1.23.jar, file:/C:/Users/admin/.m2/repository/org/springframework/spring-core/5.1.8.RELEASE/spring-core-5.1.8.RELEASE.jar, file:/C:/Users/admin/.m2/repository/org/springframework/spring-jcl/5.1.8.RELEASE/spring-jcl-5.1.8.RELEASE.jar, file:/C:/development/idea/IntelliJ%20IDEA%202018.1.3/lib/idea_rt.jar]
15:19:35.278 [background-preinit] DEBUG org.jboss.logging - Logging Provider: org.jboss.logging.Log4j2LoggerProvider
15:19:35.281 [background-preinit] INFO org.hibernate.validator.internal.util.Version - HV000001: Hibernate Validator 6.0.17.Final
15:19:35.297 [background-preinit] DEBUG org.hibernate.validator.internal.engine.resolver.TraversableResolvers - Cannot find javax.persistence.Persistence on classpath. Assuming non JPA 2 environment. All properties will per default be traversable.
15:19:35.301 [background-preinit] DEBUG org.hibernate.validator.internal.xml.config.ValidationXmlParser - Trying to load META-INF/validation.xml for XML based Validator configuration.
15:19:35.303 [background-preinit] DEBUG org.hibernate.validator.internal.xml.config.ResourceLoaderHelper - Trying to load META-INF/validation.xml via TCCL
15:19:35.303 [background-preinit] DEBUG org.hibernate.validator.internal.xml.config.ResourceLoaderHelper - Trying to load META-INF/validation.xml via Hibernate Validator's class loader
15:19:35.304 [background-preinit] DEBUG org.hibernate.validator.internal.xml.config.ValidationXmlParser - No META-INF/validation.xml found. Using annotation based configuration only.
15:19:35.522 [background-preinit] DEBUG org.hibernate.validator.messageinterpolation.ResourceBundleMessageInterpolator - Loaded expression factory via original TCCL
15:19:35.530 [background-preinit] DEBUG org.hibernate.validator.internal.engine.ValidatorFactoryImpl - HV000234: Using org.hibernate.validator.messageinterpolation.ResourceBundleMessageInterpolator as ValidatorFactory-scoped message interpolator.
15:19:35.530 [background-preinit] DEBUG org.hibernate.validator.internal.engine.ValidatorFactoryImpl - HV000234: Using org.hibernate.validator.internal.engine.resolver.TraverseAllTraversableResolver as ValidatorFactory-scoped traversable resolver.
15:19:35.530 [background-preinit] DEBUG org.hibernate.validator.internal.engine.ValidatorFactoryImpl - HV000234: Using org.hibernate.validator.internal.util.ExecutableParameterNameProvider as ValidatorFactory-scoped parameter name provider.
15:19:35.530 [background-preinit] DEBUG org.hibernate.validator.internal.engine.ValidatorFactoryImpl - HV000234: Using org.hibernate.validator.internal.engine.DefaultClockProvider as ValidatorFactory-scoped clock provider.
15:19:35.530 [background-preinit] DEBUG org.hibernate.validator.internal.engine.ValidatorFactoryImpl - HV000234: Using org.hibernate.validator.internal.engine.scripting.DefaultScriptEvaluatorFactory as ValidatorFactory-scoped script evaluator factory.
15:19:35.938 [main] ERROR org.springframework.boot.SpringApplication - Application run failed
java.lang.NoSuchMethodError: org.springframework.boot.builder.SpringApplicationBuilder.<init>([Ljava/lang/Object;)V
	at org.springframework.cloud.bootstrap.BootstrapApplicationListener.bootstrapServiceContext(BootstrapApplicationListener.java:157)
	at org.springframework.cloud.bootstrap.BootstrapApplicationListener.onApplicationEvent(BootstrapApplicationListener.java:98)
	at org.springframework.cloud.bootstrap.BootstrapApplicationListener.onApplicationEvent(BootstrapApplicationListener.java:64)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:127)
	at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:75)
	at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:53)
	at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:340)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:304)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1213)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1202)
	at com.action.eureka_server.EurekaServerApplication.main(EurekaServerApplication.java:12)

Process finished with exit code 1

The error of

was caused by the version number of springboot. I used 2.1.6.release and changed it to 1.5.9. After mvn-clean project,

can be started normally

is recorded here for the convenience of future people who encounter the same error to view

[springboot] problem failed to determine a suitable driver class

recently took over a new project under development, the result of importing IDEA couldn’t run, error:

Error starting Tomcat context. Exception: org.springframework.beans.factory.BeanCreationException. Message: Error creating bean with name ‘servletEndpointRegistrar’ defined in class path resource [org/springframework/boot/actuate/autoconfigure/endpoint/web/ServletEndpointManagementContextConfiguration$WebMvcServletEndpointManagementContextConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.boot.actuate.endpoint.web.ServletEndpointRegistrar]: Factory method ‘servletEndpointRegistrar’ threw exception; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name ‘healthEndpoint’ defined in class path resource [org/springframework/boot/actuate/autoconfigure/health/HealthEndpointConfiguration.class]: Unsatisfied dependency expressed through method ‘healthEndpoint’ parameter 1; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘healthIndicatorRegistry’ defined in class path resource [org/springframework/boot/actuate/autoconfigure/health/HealthIndicatorAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.boot.actuate.health.HealthIndicatorRegistry]: Factory method ‘healthIndicatorRegistry’ threw exception; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name ‘org.springframework.boot.actuate.autoconfigure.jdbc.DataSourceHealthIndicatorAutoConfiguration’: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘dataSource’ defined in class path resource [com/alibaba/druid/spring/boot/autoconfigure/DruidDataSourceAutoConfigure.class]: Invocation of init method failed; nested exception is org.springframework.boot.autoconfigure.jdbc.DataSourceProperties$DataSourceBeanCreationException: Failed to determine a suitable driver class

took a long time to troubleshoot the error, and finally it was found that the resource folder recognition failed. It turns out that when SpringBoot automatically loads configuration files via AutoConfigure, it is necessary to ensure that the resource folder under SRC folder is a resource folder. As shown in , the resource folder will have several small horizontal bar marks in the lower right corner, while the normal folder is not. Right-click on Make Dictionary as and change the normal folder to the resource folder, and the project will start normally.

Java cpp-0.11.jar, opencv-windows-x86_ 64.jar,opencv-2.4.11-0.11.jar

, although you probably know how to import easypr, let’s do it briefly.

  1. import easypr
    File-> import-> Existing Projects into Workspace-> Browse… . Choose your download easypr – Java
  2. import the jar package
    link: https://pan.baidu.com/s/1PXRL2uoeZmmZK4hyY5MJCg
    extraction code: 1234
    this is four outsourcing network location address.
    select import project -> Build Path-> Configure Build Path… ->

Solution to the problem of no C / C + + option in the new project of eclipse

encountered an eclipse new Project option that did not include C/C++ Project today.

first declare their installation software and environment (most of the articles xiaobai has seen so far do not explain their own environment to solve the problem, resulting in many xiaobai took a lot of detours).

– installation software: eclipse2020, win64. You can download it for free on your website.

2 installation environment: JDK14, this version is installed eclipse when the JDK is automatically configured, environment variables are also automatically configured (before manually installed and configured JDK1.7, does not affect the normal work of eclipse).

Problem with

3: eclipse cannot create a new C/C++ Project at this point.

is looking for a lot of solutions online, most of which require MinGW installation, which can be very confusing for xiaobai. Here’s a small white solution.

four solutions:

1. Open eclipse — help-install new software

2. In the Work with the input url: http://download.eclipse.org/tools/cdt/releases/kepler

3. CDT will be loaded later, select all, and click finish

4. Receive protocol and wait for installation:

5. Restart eclipse when finished.

the third time to write a blog, I hope to help xiaobai, welcome criticism and correction, together with progress!