Tag Archives: java

Could not write JSON: write javaBean error, fastjson version x.x.x, class

Could not write JSON: write javaBean error, fastjson version x.x.x, class

Possible causes of error reporting (welcome to add)

1. Serialization problem. The reason is that some fields in the bean object cannot be serialized. For example, fields of multipart type cannot be serialized. You can not serialize annotations through @ jsonfailed (serialize = false)

2. When converting JSON to object, there are some syntax problems in the attribute get/set, such as null pointer, type conversion, divisor and dividend in division are 0, etc

3. Syntax problem in get/set when database query returns (as above)

CompilationFailureException: Compilation failure error: cannot access NotThreadSafe

Error content:

Caused by: org.apache.maven.plugin.compiler.CompilationFailureException: Compilation failure
error: cannot access NotThreadSafe

Error reporting reason:

            <dependency>
                <groupId>org.apache.httpcomponents</groupId>
                <artifactId>httpclient</artifactId>
                <version>4.5.2</version>
            </dependency>
            <dependency>
                <groupId>org.apache.httpcomponents</groupId>
                <artifactId>httpcore</artifactId>
                <version>4.4.5</version>
            </dependency>

The versions of httpclient and HttpCore packages do not match.

be careful! Many online Posts say that reducing HttpCore to 4.4.4 can solve the problem, because 4.5.2 and 4.4.4 match.

However, the httpclient package itself has security vulnerabilities and is vulnerable to XSS attacks.

For httpclient problems, see: https://github.com/advisories/GHSA-7r82-7xv7-xcpj
Apache HttpClient versions prior to version 4.5.13 and 5.0.3 can misinterpret malformed authority component in request URIs passed to the library as java.net.URI object and pick the wrong target host for request execution.

Therefore, you can upgrade httpclient to 4.5.13 here, which matches 4.4.5 of HttpCore. satisfy both sides.

Correct reference posture:

            <dependency>
                <groupId>org.apache.httpcomponents</groupId>
                <artifactId>httpclient</artifactId>
                <version>4.5.13</version>
            </dependency>
            <dependency>
                <groupId>org.apache.httpcomponents</groupId>
                <artifactId>httpcore</artifactId>
                <version>4.4.5</version>
            </dependency>

java.lang.IllegalStateException: Logback configuration error detected

Recently, due to the integration of spring boot and log4j2 in the company’s project, the project cannot run

Error reporting reason:

    Logback configuration error:

Error code:

It is obvious that the logback configuration is wrong

Solution:

    Error path: C: \ users \ administrator \ desktop \ log \ error \ log_ error.log     Obviously, my current administrator name is admin, and the logback.xml file is in the configuration

Because it is the administrator, it cannot create the log file path. It needs to be changed to: C:// users// admin// desktop// log run again

 

  OK, perfect operation.

 

hdfs-bug:DataXceiver error processing WRITE_BLOCK operation

The error message and screenshot are as follows:

calculation112.aggrx:50010:DataXceiver error processing WRITE_BLOCK operation  src: /10.1.1.116:36274 dst: /10.1.1.112:50010
java.io.IOException: Premature EOF from inputStream
    at org.apache.hadoop.io.IOUtils.readFully(IOUtils.java:203)
    at org.apache.hadoop.hdfs.protocol.datatransfer.PacketReceiver.doReadFully(PacketReceiver.java:213)
    at org.apache.hadoop.hdfs.protocol.datatransfer.PacketReceiver.doRead(PacketReceiver.java:134)
    at org.apache.hadoop.hdfs.protocol.datatransfer.PacketReceiver.receiveNextPacket(PacketReceiver.java:109)
    at org.apache.hadoop.hdfs.server.datanode.BlockReceiver.receivePacket(BlockReceiver.java:501)
    at org.apache.hadoop.hdfs.server.datanode.BlockReceiver.receiveBlock(BlockReceiver.java:901)
    at org.apache.hadoop.hdfs.server.datanode.DataXceiver.writeBlock(DataXceiver.java:808)
    at org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.opWriteBlock(Receiver.java:169)
    at org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.processOp(Receiver.java:106)
    at org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:246)
    at java.lang.Thread.run(Thread.java:748)
　　......

Reason: the file operation exceeds the lease term, that is, the file is deleted during the data stream operation

Scheme:

Step 1: modify the maximum number of files opened in the process

cat /etc/security/limits.conf  | grep -v ^#


*        soft    nofile        1000000
*         hard    nofile        1048576
*        soft    nproc        65536
*        hard    nproc        unlimited
*        soft    memlock        unlimited
*        hard    memlock        unlimited
*         -      nofile          1000000

Step 2: (modify the number of data transmission threads)

Done.

 

Error:java: OutOfMemoryError: insufficient memory [How to Solve]

Troubleshooting: error: Java: outofmemoryerror: insufficient memory

1.idea

2. Desktop – my computer – the arrow in the upper left corner to the desktop – find the user folder – find xxx.vmoptions – config – change the size 3, restart the idea

Note:
you can’t find it on the Internet successfully. Record it.

JUnit test classes error: java.lang.IllegalStateException: Failed to load ApplicationContext

Problem description

When running JUnit test class, the following error message is reported:


java.lang.IllegalStateException: Failed to load ApplicationContext

	at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:132)
	at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:123)
	at org.springframework.test.context.web.ServletTestExecutionListener.setUpRequestContextIfNecessary(ServletTestExecutionListener.java:190)
	at org.springframework.test.context.web.ServletTestExecutionListener.prepareTestInstance(ServletTestExecutionListener.java:132)
	at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:244)
	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:227)
	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:289)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:291)
	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:246)
	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:97)
	at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)
	at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)
	at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
	at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
	at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:190)
	at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)
	at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
	at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:221)
	at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:54)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'serverEndpointExporter' defined in class path resource [org/jeecg/config/WebSocketConfig.class]: Invocation of init method failed; nested exception is java.lang.IllegalStateException: javax.websocket.server.ServerContainer not available
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1794)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516)
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:324)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:897)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:879)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:551)
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:758)
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:750)
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:405)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:315)
	at org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:120)
	at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:99)
	at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:124)
	... 25 more
Caused by: java.lang.IllegalStateException: javax.websocket.server.ServerContainer not available
	at org.springframework.util.Assert.state(Assert.java:76)
	at org.springframework.web.socket.server.standard.ServerEndpointExporter.afterPropertiesSet(ServerEndpointExporter.java:107)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1853)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1790)
	... 41 more

Error reporting reason

Websocket needs to be started by relying on containers such as Tomcat

Solution:

Add “webenvironment = springboottest. Webenvironment. Random_port” after springboottest, which means to create a web application context.

For a complete example, refer to the following code:

package org.jeecg;

import lombok.extern.slf4j.Slf4j;
import org.jeecg.modules.info.cache.DataCache;
import org.jeecg.modules.info.service.IWrSeasonBService;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;


@RunWith(SpringRunner.class)
@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
@Slf4j
public class DataCacheTest {

    @Autowired
    DataCache dataCahche;

    @Autowired
    IWrSeasonBService iWrSeasonBService;


    @Test
    public void irrSeasonTest() {
        log.info("========================");
        log.info("irrigation season cache test");
        log.info("irrigation season name:" + "spring irrigation");
        String str = dataCahche.getStartEndDateBySeasonNm("spring irrigation");
        // assertEquals("2021-03-01,2021-04-30", str);
        String[] arr = str.split(",");
        if (arr != null && !arr.equals("null")) {
            log.info("Start date, end date:" + arr[0] + "," + arr[1]);
        } else {
            log.info("Record cache does not exist");
        }
        log.info("========================");
    }

}

[Solved] org.springframework.beans.factory.BeanDefinitionStoreException: Failed to parse configuration class 


  .   ____          _            __ _ _
 /\\/___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, |////
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v2.1.6.RELEASE)

2021-10-20 18:20:57.801  INFO 13176 --- [           main] cn.com.topsec.hgdsmp.web.WebApplication  : Starting WebApplication on DESKTOP-CXH with PID 13176 (F:\TopSecWork\06.dsmp\web\target\classes started by lenovo in F:\TopSecWork\06.dsmp\web)
2021-10-20 18:20:57.803  INFO 13176 --- [           main] cn.com.topsec.hgdsmp.web.WebApplication  : No active profile set, falling back to default profiles: default
2021-10-20 18:20:58.465  WARN 13176 --- [           main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanDefinitionStoreException: Failed to parse configuration class [cn.com.topsec.hgdsmp.web.WebApplication]; nested exception is java.io.FileNotFoundException: class path resource [org/jeecgframework/minidao/aspect/EmptyInterceptor.class] cannot be opened because it does not exist
2021-10-20 18:20:58.469  INFO 13176 --- [           main] ConditionEvaluationReportLoggingListener : 

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2021-10-20 18:20:58.481 ERROR 13176 --- [           main] o.s.boot.SpringApplication               : Application run failed

org.springframework.beans.factory.BeanDefinitionStoreException: Failed to parse configuration class [cn.com.topsec.hgdsmp.web.WebApplication]; nested exception is java.io.FileNotFoundException: class path resource [org/jeecgframework/minidao/aspect/EmptyInterceptor.class] cannot be opened because it does not exist
	at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:181) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
	at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:315) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
	at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:232) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
	at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:275) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
	at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:95) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:705) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:531) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:742) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:389) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:311) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1213) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1202) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
	at cn.com.topsec.hgdsmp.web.WebApplication.main(WebApplication.java:30) [classes/:na]
Caused by: java.io.FileNotFoundException: class path resource [org/jeecgframework/minidao/aspect/EmptyInterceptor.class] cannot be opened because it does not exist
	at org.springframework.core.io.ClassPathResource.getInputStream(ClassPathResource.java:180) ~[spring-core-5.1.8.RELEASE.jar:5.1.8.RELEASE]
	at org.springframework.core.type.classreading.SimpleMetadataReader.<init>(SimpleMetadataReader.java:51) ~[spring-core-5.1.8.RELEASE.jar:5.1.8.RELEASE]
	at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:103) ~[spring-core-5.1.8.RELEASE.jar:5.1.8.RELEASE]
	at org.springframework.boot.type.classreading.ConcurrentReferenceCachingMetadataReaderFactory.createMetadataReader(ConcurrentReferenceCachingMetadataReaderFactory.java:86) ~[spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
	at org.springframework.boot.type.classreading.ConcurrentReferenceCachingMetadataReaderFactory.getMetadataReader(ConcurrentReferenceCachingMetadataReaderFactory.java:73) ~[spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
	at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:81) ~[spring-core-5.1.8.RELEASE.jar:5.1.8.RELEASE]
	at org.springframework.context.annotation.ConfigurationClassParser.asSourceClass(ConfigurationClassParser.java:682) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
	at org.springframework.context.annotation.ConfigurationClassParser$SourceClass.getInterfaces(ConfigurationClassParser.java:1008) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
	at org.springframework.context.annotation.ConfigurationClassParser.processInterfaces(ConfigurationClassParser.java:375) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
	at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:323) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
	at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:242) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
	at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:191) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
	at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:295) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
	at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:242) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
	at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:199) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
	at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:167) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
	... 13 common frames omitted

org.springframework.beans.factory.BeanDefinitionStoreException: Failed to parse configuration class [cn.com.topsec.hgdsmp.web.WebApplication]; nested exception is java.io.FileNotFoundException: class path resource [org/jeecgframework/minidao/aspect/EmptyInterceptor.class] cannot be opened because it does not exist
	at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:181)
	at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:315)
	at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:232)
	at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:275)
	at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:95)
	at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:705)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:531)
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140)
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:742)
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:389)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:311)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1213)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1202)
	at cn.com.topsec.hgdsmp.web.WebApplication.main(WebApplication.java:30)
Caused by: java.io.FileNotFoundException: class path resource [org/jeecgframework/minidao/aspect/EmptyInterceptor.class] cannot be opened because it does not exist
	at org.springframework.core.io.ClassPathResource.getInputStream(ClassPathResource.java:180)
	at org.springframework.core.type.classreading.SimpleMetadataReader.<init>(SimpleMetadataReader.java:51)
	at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:103)
	at org.springframework.boot.type.classreading.ConcurrentReferenceCachingMetadataReaderFactory.createMetadataReader(ConcurrentReferenceCachingMetadataReaderFactory.java:86)
	at org.springframework.boot.type.classreading.ConcurrentReferenceCachingMetadataReaderFactory.getMetadataReader(ConcurrentReferenceCachingMetadataReaderFactory.java:73)
	at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:81)
	at org.springframework.context.annotation.ConfigurationClassParser.asSourceClass(ConfigurationClassParser.java:682)
	at org.springframework.context.annotation.ConfigurationClassParser$SourceClass.getInterfaces(ConfigurationClassParser.java:1008)
	at org.springframework.context.annotation.ConfigurationClassParser.processInterfaces(ConfigurationClassParser.java:375)
	at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:323)
	at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:242)
	at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:191)
	at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:295)
	at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:242)
	at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:199)
	at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:167)
	... 13 more

Process finished with exit code 0

Solution: remove <–< scope> system Method, using Maven warehouse

!-- JimuReport import start -->
        <dependency>
            <groupId>org.jeecgframework.jimureport</groupId>
            <artifactId>jimureport-spring-boot-starter</artifactId>
            <version>1.4.0-beta</version>
            <!--<scope>system</scope>
            <systemPath>${project.basedir}/lib/jimureport-spring-boot-starter-1.4.0-beta.jar</systemPath>-->
        </dependency>

Springboot integration RabbitMQ times error: Failed to check/redeclare auto-delete queue(s).

Today, when the company server rabbitmq related configuration is changed to local related configuration in the code, an error is reported: failed to check/redeclare auto delete queue (s)

Error reporting reason:

15672 is the port of the web management interface; 5672 is the port accessed by MQ, so changing the port in the configuration file to 5672 is OK;

IntelliJ idea error: Java: compilation failed: solution to internal java compiler error

Method 1: it may be due to heap memory problems

In setting — & gt; Build,Execution,Deployment–> Build process heap size (Mbytes) found in compiler: 700 changed to 1024 (as appropriate)

Method 2: it may be due to project coding

PS: I can compile it by changing it to GBK. The system default GBK format is invalid and needs to be manually changed to GBK

Failed to parse mapping [_doc]: Root mapping definition has unsupported parameters:

Question content:

{
    "error": {
        "root_cause": [
            {
                "type": "mapper_parsing_exception",
                "reason": "Root mapping definition has unsupported parameters:  [article : {properties={id={index=not_analyzed, store=true, type=long}, title={analyzer=standard, index=analyzed, store=true, type=text}, content={analyzer=standard, index=analyzed, store=true, type=text}}}]"
            }
        ],
        "type": "mapper_parsing_exception",
        "reason": "Failed to parse mapping [_doc]: Root mapping definition has unsupported parameters:  [article : {properties={id={index=not_analyzed, store=true, type=long}, title={analyzer=standard, index=analyzed, store=true, type=text}, content={analyzer=standard, index=analyzed, store=true, type=text}}}]",
        "caused_by": {
            "type": "mapper_parsing_exception",
            "reason": "Root mapping definition has unsupported parameters:  [article : {properties={id={index=not_analyzed, store=true, type=long}, title={analyzer=standard, index=analyzed, store=true, type=text}, content={analyzer=standard, index=analyzed, store=true, type=text}}}]"
        }
    },
    "status": 400
}

Wrong configuration

{
  "mappings": {
    "article": {
      "properties": {
        "id": {
          "type": "long",
          "store": true,
          "index":"not_analyzed"
        },
        "title": {
          "type": "text",
          "store": true,
          "index":"analyzed",
          "analyzer":"standard"
        },
        "content": {
          "type": "text",
          "store": true,
          "index":"analyzed",
          "analyzer":"standard"
        } 
      }
    } 
  }
}

Modify configuration

{
  "mappings": {
      "properties": {
        "id": {
          "type": "long",
          "store": true
        },
        "title": {
          "type": "text",
          "store": true,
          "analyzer":"standard"
        },
        "content": {
          "type": "text",
          "store": true,
          "analyzer":"standard"
        } 
      }
  }
}

Cause of problem: ES7 adjustment for configuration