Problem Description:
The error is as follows: error c3861: ‘printf’: identifier not found. 
resolvent
The prompt indicates that the identifier “printf” cannot be found. I guess this may be caused by the compiler’s failure to include the header file stdio. H. then I wrote a new line #include & lt; stdio.h>, After that, the program will not report an error.
Error content
file_get_contents(): SSL operation failed with code 1.OpenSSL Error messages:\nerror:14090086:SSL routines:ssl3_get_server_certificate:certificate verify failed
This is related to the local environment. Whether SSL authentication is enabled
solution: modify the configuration or code
$stream_opts = [
"ssl" => [
"verify_peer"=>false,
"verify_peer_name"=>false,
]
];
$response = file_get_contents($url, false, stream_context_create($stream_opts));
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("========================");
}
}
. ____ _ __ _ _
/\\/___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, |////
=========|_|==============|___/=/_/_/_/
:: 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>
Solution:
Xcode options Setting
GPU Frame Capture : OpenGL ES
Metal API Vaildation: Disabled
Scene description
A project was recently deployed. Because it is compatible with IE8, the front and back ends need to be deployed to a site. The nginx configuration is as follows:
server {
listen 80;
server_name www.aaa.ink;
client_max_body_size 1000M;
client_body_timeout 20s;
client_header_timeout 10s;
send_timeout 30s;
ssl_protocols TLSv1.2;
charset utf-8;
location ^~ /api/ {
proxy_pass http://127.0.0.1:8080/api/;
}
location ~/(.*)$ {
root /usr/local/nginx/ttm;
index index.html index.htm;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
}
Swagger is used as the interface document in the background. After the project is started, the site can be accessed normally, but an error will be reported when testing the interface in swagger. The error prompt is typeerror: failed to fetch
Problem analysis
Analysis shows that swagger’s actual request address becomes http://127.0.0.1:8080/api/ , it’s not what we actually do http://www.aaa.ink/api/ Interface address. It is found that swagger will obtain a server address according to the user’s request. Due to the use of nginx reverse proxy, swagger obtained the intranet address we configured, resulting in the request unable to respond normally.
Problem solving
location ^~ /api/ {
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_set_header X-Forwarded-Host $server_name;
proxy_pass http://127.0.0.1:8080/api/;
}
Set the forwarding of background items to the request header so that swagger can get the real address. The problem can be solved.
Problem Description: if you want to restrict specific IP addresses from accessing the Clickhouse, use the following statement to create a user
drop user test;
CREATE USER test HOST IP '172.18.xxx.xxx' IDENTIFIED WITH sha256_password BY 'test';
GRANT SHOW, SELECT, INSERT ON test.* TO test;
Client login:
ensure that the user name and password entered are correct
clickhouse-client --host 172.18.xxx.xxx --port 9000 --user test --password test -m
Error Messages:
Received from 172.18.xxx.xxx:9000. DB::Exception: test: Authentication failed:
password is incorrect or there is no user with such name.
ClickHouse client version 21.4.6.55 (official build).
Connecting to 172.18.52.122:9000 as user test.
Code: 516. DB::Exception：
Received from 172.18.xxx.xxx:9000. DB::Exception: test: Authentication failed:
password is incorrect or there is no user with such name.
Problem solving process:
1. Telnet database is accessible
telnet 172.18.xxx.xxx 9000
2. The database can be accessed normally when the user does not specify IP
drop user test;
CREATE USER test IDENTIFIED WITH sha256_ password BY ‘test’;
GRANT SHOW, SELECT, INSERT ON test.* TO test;
The user name and password are correct, and the network is connected. Why can’t you access normally after specifying the IP
the first thought is to look at the Clickhouse log, but no valuable information can be found by querying the Clickhouse log
where else can you provide useful information?Cilckhouse’s query_ The log appears
3. View query_ Log, initial_ Address is not the IP address of the client, but the address of the gateway
select initial_ address n from system.query_ Log QL where user = “test”
why is the address of the gateway?It turns out that the client and Clickhouse are not in the same network segment. Access across network segments must pass through the gateway.
4. After changing the authorized IP address to the gateway, it can be accessed normally
in this way, the meaning of restricting IP addresses from accessing Clickhouse is lost.
Solution:
Copy the following three files from other available scripts to the folder of error reporting scripts:
default.cfg
default.usp
*. PRM (change the position of * to the name of the error reporting script)
Reason: after the script is opened, the disk space is cleaned up, resulting in some script files being cleaned up as spam, so do not clean up the disk space after the script is opened
tomcat startup error:
Error Messages:
Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/ssm]]
Servlet mapping specifies an unknown servlet name [springDispatcherServlet]
error messages:
Severe: Subcontainer start failure
java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/ssm]]
at java.util.concurrent.FutureTask.report(FutureTask.java:122)
at java.util.concurrent.FutureTask.get(FutureTask.java:192)
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:916)
at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:841)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134)
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:909)
at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.StandardService.startInternal(StandardService.java:421)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:930)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.startup.Catalina.start(Catalina.java:633)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:343)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:474)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/ssm]]
at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:440)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:198)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134)
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:909)
... 21 more
Caused by: java.lang.IllegalArgumentException: Servlet mapping specifies an unknown servlet name [springDispatcherServlet]
at org.apache.catalina.core.StandardContext.addServletMappingDecoded(StandardContext.java:3179)
at org.apache.catalina.Context.addServletMappingDecoded(Context.java:881)
at org.apache.catalina.startup.ContextConfig.configureContext(ContextConfig.java:1391)
at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1168)
at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:774)
at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:301)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5056)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
... 27 more
十月 21, 2021 1:52:20 下午 org.apache.catalina.startup.Catalina start
Severe: The required service component failed to start, so Tomcat could not be started
LifecycleException: child container failed to start
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:928)
at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.StandardService.startInternal(StandardService.java:421)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:930)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.startup.Catalina.start(Catalina.java:633)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:343)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:474)
Caused by: java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: child container failed to start
at java.util.concurrent.FutureTask.report(FutureTask.java:122)
at java.util.concurrent.FutureTask.get(FutureTask.java:192)
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:916)
... 13 more
Caused by: java.lang.IllegalArgumentException: Servlet mapping specifies an unknown servlet name [springDispatcherServlet]
at org.apache.catalina.core.StandardContext.addServletMappingDecoded(StandardContext.java:3179)
at org.apache.catalina.Context.addServletMappingDecoded(Context.java:881)
at org.apache.catalina.startup.ContextConfig.configureContext(ContextConfig.java:1391)
at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1168)
at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:774)
at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:301)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5056)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
... 27 more
Solution:
In the web.xml configuration, the names of servlet name and servlet mapping are inconsistent, resulting in changing the name in servlet mapping to dispatcher servlet
note:
note: because I have a dispatcher servlet-servlet.xml file, the name should correspond!
After entering .\vcpkg.exe install brotli: x64 windows, you see the following prompt, so you go to log
and find the prompt vcpkg/scripts/buildsystems/msbuild/applocal. PS1 'is not recognized as the name of a script file . It turns out that this file is missing, so you directly go to the vcpkg official website to supplement this file,
Similarly, this can also solve the problem that Linux Ping does not sleep on the host because the network is not turned on
Solve the problem of failed to start LSB: bring up/down Networking: caused by MAC address
Here are two solution I found online:
1. Close NetworkManager
2. Change MAC
I tried, but failed
Later, I found that the name of my network card was wrong, so I changed it, and the memory size of the virtual machine became like this
Later, I copied the network card and changed its name
Question
I am a win10 system and installed the docker desktop version. One day after I uninstalled Lenovo housekeeper, docker could not be started normally. The error is as follows:
Error reporting details:
System.InvalidOperationException:
Failed to deploy distro docker-desktop to C:\Users\user\AppData\Local\Docker\wsl\distro: exit code: -1
stdout: �~�~�p f\hV-N�l g�fY�v�~�~�p�S(u0
stderr:
在 Docker.ApiServices.WSL2.WslShortLivedCommandResult.LogAndThrowIfUnexpectedExitCode(String prefix, ILogger log, Int32 expectedExitCode) 位置 C:\workspaces\master-merge\src\github.com\docker\pinata\win\src\Docker.ApiServices\WSL2\WslCommand.cs:行号 146
在 Docker.Engines.WSL2.WSL2Provisioning.<DeployDistroAsync>d__17.MoveNext() 位置 C:\workspaces\master-merge\src\github.com\docker\pinata\win\src\Docker.Engines\WSL2\WSL2Provisioning.cs:行号 168
--- The end of the stack trace in the previous location where the exception was raised ---
在 System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
在 Docker.Engines.WSL2.WSL2Provisioning.<ProvisionAsync>d__8.MoveNext() 位置 C:\workspaces\master-merge\src\github.com\docker\pinata\win\src\Docker.Engines\WSL2\WSL2Provisioning.cs:行号 77
--- The end of the stack trace in the previous location where the exception was raised ---
在 System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
在 Docker.Engines.WSL2.LinuxWSL2Engine.<DoStartAsync>d__28.MoveNext() 位置 C:\workspaces\master-merge\src\github.com\docker\pinata\win\src\Docker.Engines\WSL2\LinuxWSL2Engine.cs:行号 180
--- The end of the stack trace in the previous location where the exception was raised ---
在 System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
在 Docker.ApiServices.StateMachines.TaskExtensions.<WrapAsyncInCancellationException>d__0.MoveNext() 位置 C:\workspaces\master-merge\src\github.com\docker\pinata\win\src\Docker.ApiServices\StateMachines\TaskExtensions.cs:行号 29
--- The end of the stack trace in the previous location where the exception was raised ---
在 System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
在 Docker.ApiServices.StateMachines.StartTransition.<DoRunAsync>d__5.MoveNext() 位置 C:\workspaces\master-merge\src\github.com\docker\pinata\win\src\Docker.ApiServices\StateMachines\StartTransition.cs:行号 67
--- The end of the stack trace in the previous location where the exception was raised ---
在 System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
在 Docker.ApiServices.StateMachines.StartTransition.<DoRunAsync>d__5.MoveNext() 位置 C:\workspaces\master-merge\src\github.com\docker\pinata\win\src\Docker.ApiServices\StateMachines\StartTransition.cs:行号 92
Solution
1. Attempt to uninstall and reinstall is invalid
2. Close WSL 2-based engine, restart and restore to normal
