一、启动主程序报错
1. 异常：找不到或无法加载主类
错误: 找不到或无法加载主类 com.zsx.EurekaServerApplication
原因: java.lang.ClassNotFoundException: com.zsx.EurekaServerApplication
Process finished with exit code 1 2. 背景：单个spring-cloud文件夹下多个工程，通过TortoiseGit提交到Github后，再重新从Github拉取后，使用Intellij IDEA打开spring-cloud，启动主程序报错
3. 通过Beyond Compare 4进行对比（Push前内容和Pull后内容），发现如下变化
4. 解决方法，修改spring-cloud.iml 文件，将
<content url="file://$MODULE_DIR$">
<sourceFolder url="file://$MODULE_DIR$/spring-cloud-eureka-server/src/main/java" isTestSource="false" />
<sourceFolder url="file://$MODULE_DIR$/spring-cloud-eureka-server/src/main/resources" type="java-resource" />
</content> 修改为
<content url="file://$MODULE_DIR$"/> 5.查看结果
C:\software\jdk-11.0.3\bin\java.exe -XX:TieredStopAtLevel=1 -noverify -Dspring.output.ansi.enabled=always -Dcom.sun.management.jmxremote -Dspring.jmx.enabled=true -Dspring.liveBeansView.mbeanDomain -Dspring.application.admin.enabled=true "-javaagent:C:\software\JetBrains\IntelliJ IDEA 2019.1.3\lib\idea_rt.jar=19006:C:\software\JetBrains\IntelliJ IDEA 2019.1.3\bin" -Dfile.encoding=UTF-8 -classpath F:\IdeaProjects\spring-cloud\spring-cloud-eureka-server\target\classes;D:\repository\org\springframework\cloud\spring-cloud-starter-netflix-eureka-server\2.1.2.RELEASE\spring-cloud-starter-netflix-eureka-server-2.1.2.RELEASE.jar;D:\repository\org\springframework\cloud\spring-cloud-starter\2.1.2.RELEASE\spring-cloud-starter-2.1.2.RELEASE.jar;D:\repository\org\springframework\cloud\spring-cloud-context\2.1.2.RELEASE\spring-cloud-context-2.1.2.RELEASE.jar;D:\repository\org\springframework\security\spring-security-crypto\5.1.5.RELEASE\spring-security-crypto-5.1.5.RELEASE.jar;D:\repository\org\springframework\cloud\spring-cloud-commons\2.1.2.RELEASE\spring-cloud-commons-2.1.2.RELEASE.jar;D:\repository\org\springframework\security\spring-security-rsa\1.0.7.RELEASE\spring-security-rsa-1.0.7.RELEASE.jar;D:\repository\org\bouncycastle\bcpkix-jdk15on\1.60\bcpkix-jdk15on-1.60.jar;D:\repository\org\bouncycastle\bcprov-jdk15on\1.60\bcprov-jdk15on-1.60.jar;D:\repository\org\springframework\cloud\spring-cloud-netflix-eureka-server\2.1.2.RELEASE\spring-cloud-netflix-eureka-server-2.1.2.RELEASE.jar;D:\repository\org\springframework\boot\spring-boot-starter-actuator\2.1.6.RELEASE\spring-boot-starter-actuator-2.1.6.RELEASE.jar;D:\repository\org\springframework\boot\spring-boot-actuator-autoconfigure\2.1.6.RELEASE\spring-boot-actuator-autoconfigure-2.1.6.RELEASE.jar;D:\repository\org\springframework\boot\spring-boot-actuator\2.1.6.RELEASE\spring-boot-actuator-2.1.6.RELEASE.jar;D:\repository\io\micrometer\micrometer-core\1.1.5\micrometer-core-1.1.5.jar;D:\repository\org\hdrhistogram\HdrHistogram\2.1.9\HdrHistogram-2.1.9.jar;D:\repository\org\latencyutils\LatencyUtils\2.0.3\LatencyUtils-2.0.3.jar;D:\repository\org\springframework\boot\spring-boot-starter-freemarker\2.1.6.RELEASE\spring-boot-starter-freemarker-2.1.6.RELEASE.jar;D:\repository\org\freemarker\freemarker\2.3.28\freemarker-2.3.28.jar;D:\repository\org\springframework\spring-context-support\5.1.8.RELEASE\spring-context-support-5.1.8.RELEASE.jar;D:\repository\org\springframework\cloud\spring-cloud-netflix-hystrix\2.1.2.RELEASE\spring-cloud-netflix-hystrix-2.1.2.RELEASE.jar;D:\repository\org\springframework\boot\spring-boot-starter-aop\2.1.6.RELEASE\spring-boot-starter-aop-2.1.6.RELEASE.jar;D:\repository\org\aspectj\aspectjweaver\1.9.4\aspectjweaver-1.9.4.jar;D:\repository\org\springframework\cloud\spring-cloud-netflix-eureka-client\2.1.2.RELEASE\spring-cloud-netflix-eureka-client-2.1.2.RELEASE.jar;D:\repository\com\netflix\eureka\eureka-client\1.9.12\eureka-client-1.9.12.jar;D:\repository\org\codehaus\jettison\jettison\1.3.7\jettison-1.3.7.jar;D:\repository\stax\stax-api\1.0.1\stax-api-1.0.1.jar;D:\repository\com\netflix\netflix-commons\netflix-eventbus\0.3.0\netflix-eventbus-0.3.0.jar;D:\repository\com\netflix\netflix-commons\netflix-infix\0.3.0\netflix-infix-0.3.0.jar;D:\repository\commons-jxpath\commons-jxpath\1.3\commons-jxpath-1.3.jar;D:\repository\joda-time\joda-time\2.10.2\joda-time-2.10.2.jar;D:\repository\org\antlr\antlr-runtime\3.4\antlr-runtime-3.4.jar;D:\repository\org\antlr\stringtemplate\3.2.1\stringtemplate-3.2.1.jar;D:\repository\antlr\antlr\2.7.7\antlr-2.7.7.jar;D:\repository\com\google\code\gson\gson\2.8.5\gson-2.8.5.jar;D:\repository\org\apache\commons\commons-math\2.2\commons-math-2.2.jar;D:\repository\javax\ws\rs\jsr311-api\1.1.1\jsr311-api-1.1.1.jar;D:\repository\com\netflix\servo\servo-core\0.12.21\servo-core-0.12.21.jar;D:\repository\com\sun\jersey\jersey-core\1.19.1\jersey-core-1.19.1.jar;D:\repository\com\sun\jersey\jersey-client\1.19.1\jersey-client-1.19.1.jar;D:\repository\com\sun\jersey\contribs\jersey-apache-client4\1.19.1\jersey-apache-client4-1.19.1.jar;D:\repository\org\apache\httpcomponents\httpclient\4.5.9\httpclient-4.5.9.jar;D:\repository\org\apache\httpcomponents\httpcore\4.4.11\httpcore-4.4.11.jar;D:\repository\commons-codec\commons-codec\1.11\commons-codec-1.11.jar;D:\repository\com\google\inject\guice\4.1.0\guice-4.1.0.jar;D:\repository\aopalliance\aopalliance\1.0\aopalliance-1.0.jar;D:\repository\com\github\vlsi\compactmap\compactmap\1.2.1\compactmap-1.2.1.jar;D:\repository\com\github\andrewoma\dexx\dexx-collections\0.2\dexx-collections-0.2.jar;D:\repository\com\sun\jersey\jersey-servlet\1.19.1\jersey-servlet-1.19.1.jar;D:\repository\com\sun\jersey\jersey-server\1.19.1\jersey-server-1.19.1.jar;D:\repository\com\netflix\eureka\eureka-core\1.9.12\eureka-core-1.9.12.jar;D:\repository\com\fasterxml\woodstox\woodstox-core\5.0.3\woodstox-core-5.0.3.jar;D:\repository\com\netflix\archaius\archaius-core\0.7.6\archaius-core-0.7.6.jar;D:\repository\com\google\code\findbugs\jsr305\3.0.1\jsr305-3.0.1.jar;D:\repository\com\google\guava\guava\16.0\guava-16.0.jar;D:\repository\javax\inject\javax.inject\1\javax.inject-1.jar;D:\repository\com\fasterxml\jackson\dataformat\jackson-dataformat-xml\2.9.9\jackson-dataformat-xml-2.9.9.jar;D:\repository\com\fasterxml\jackson\module\jackson-module-jaxb-annotations\2.9.9\jackson-module-jaxb-annotations-2.9.9.jar;D:\repository\org\codehaus\woodstox\stax2-api\3.1.4\stax2-api-3.1.4.jar;D:\repository\com\thoughtworks\xstream\xstream\1.4.10\xstream-1.4.10.jar;D:\repository\xmlpull\xmlpull\1.1.3.1\xmlpull-1.1.3.1.jar;D:\repository\xpp3\xpp3_min\1.1.4c\xpp3_min-1.1.4c.jar;D:\repository\org\springframework\cloud\spring-cloud-starter-netflix-archaius\2.1.2.RELEASE\spring-cloud-starter-netflix-archaius-2.1.2.RELEASE.jar;D:\repository\org\springframework\cloud\spring-cloud-netflix-ribbon\2.1.2.RELEASE\spring-cloud-netflix-ribbon-2.1.2.RELEASE.jar;D:\repository\org\springframework\cloud\spring-cloud-netflix-archaius\2.1.2.RELEASE\spring-cloud-netflix-archaius-2.1.2.RELEASE.jar;D:\repository\commons-configuration\commons-configuration\1.8\commons-configuration-1.8.jar;D:\repository\commons-lang\commons-lang\2.6\commons-lang-2.6.jar;D:\repository\org\springframework\cloud\spring-cloud-starter-netflix-ribbon\2.1.2.RELEASE\spring-cloud-starter-netflix-ribbon-2.1.2.RELEASE.jar;D:\repository\com\netflix\ribbon\ribbon\2.3.0\ribbon-2.3.0.jar;D:\repository\com\netflix\ribbon\ribbon-transport\2.3.0\ribbon-transport-2.3.0.jar;D:\repository\io\reactivex\rxnetty-contexts\0.4.9\rxnetty-contexts-0.4.9.jar;D:\repository\io\reactivex\rxnetty-servo\0.4.9\rxnetty-servo-0.4.9.jar;D:\repository\com\netflix\hystrix\hystrix-core\1.5.18\hystrix-core-1.5.18.jar;D:\repository\io\reactivex\rxnetty\0.4.9\rxnetty-0.4.9.jar;D:\repository\com\netflix\ribbon\ribbon-core\2.3.0\ribbon-core-2.3.0.jar;D:\repository\com\netflix\ribbon\ribbon-httpclient\2.3.0\ribbon-httpclient-2.3.0.jar;D:\repository\commons-collections\commons-collections\3.2.2\commons-collections-3.2.2.jar;D:\repository\com\netflix\netflix-commons\netflix-commons-util\0.3.0\netflix-commons-util-0.3.0.jar;D:\repository\com\netflix\ribbon\ribbon-loadbalancer\2.3.0\ribbon-loadbalancer-2.3.0.jar;D:\repository\com\netflix\netflix-commons\netflix-statistics\0.1.1\netflix-statistics-0.1.1.jar;D:\repository\io\reactivex\rxjava\1.3.8\rxjava-1.3.8.jar;D:\repository\com\netflix\ribbon\ribbon-eureka\2.3.0\ribbon-eureka-2.3.0.jar;D:\repository\org\slf4j\slf4j-api\1.7.26\slf4j-api-1.7.26.jar;D:\repository\org\springframework\cloud\spring-cloud-starter-config\2.1.3.RELEASE\spring-cloud-starter-config-2.1.3.RELEASE.jar;D:\repository\org\springframework\cloud\spring-cloud-config-client\2.1.3.RELEASE\spring-cloud-config-client-2.1.3.RELEASE.jar;D:\repository\com\fasterxml\jackson\core\jackson-annotations\2.9.0\jackson-annotations-2.9.0.jar;D:\repository\com\fasterxml\jackson\core\jackson-databind\2.9.9\jackson-databind-2.9.9.jar;D:\repository\com\fasterxml\jackson\core\jackson-core\2.9.9\jackson-core-2.9.9.jar;D:\repository\org\springframework\boot\spring-boot-starter-web\2.1.6.RELEASE\spring-boot-starter-web-2.1.6.RELEASE.jar;D:\repository\org\springframework\boot\spring-boot-starter\2.1.6.RELEASE\spring-boot-starter-2.1.6.RELEASE.jar;D:\repository\org\springframework\boot\spring-boot-starter-logging\2.1.6.RELEASE\spring-boot-starter-logging-2.1.6.RELEASE.jar;D:\repository\ch\qos\logback\logback-classic\1.2.3\logback-classic-1.2.3.jar;D:\repository\ch\qos\logback\logback-core\1.2.3\logback-core-1.2.3.jar;D:\repository\org\apache\logging\log4j\log4j-to-slf4j\2.11.2\log4j-to-slf4j-2.11.2.jar;D:\repository\org\apache\logging\log4j\log4j-api\2.11.2\log4j-api-2.11.2.jar;D:\repository\org\slf4j\jul-to-slf4j\1.7.26\jul-to-slf4j-1.7.26.jar;D:\repository\javax\annotation\javax.annotation-api\1.3.2\javax.annotation-api-1.3.2.jar;D:\repository\org\yaml\snakeyaml\1.23\snakeyaml-1.23.jar;D:\repository\org\springframework\boot\spring-boot-starter-json\2.1.6.RELEASE\spring-boot-starter-json-2.1.6.RELEASE.jar;D:\repository\com\fasterxml\jackson\datatype\jackson-datatype-jdk8\2.9.9\jackson-datatype-jdk8-2.9.9.jar;D:\repository\com\fasterxml\jackson\datatype\jackson-datatype-jsr310\2.9.9\jackson-datatype-jsr310-2.9.9.jar;D:\repository\com\fasterxml\jackson\module\jackson-module-parameter-names\2.9.9\jackson-module-parameter-names-2.9.9.jar;D:\repository\org\springframework\boot\spring-boot-starter-tomcat\2.1.6.RELEASE\spring-boot-starter-tomcat-2.1.6.RELEASE.jar;D:\repository\org\apache\tomcat\embed\tomcat-embed-core\9.0.21\tomcat-embed-core-9.0.21.jar;D:\repository\org\apache\tomcat\embed\tomcat-embed-el\9.0.21\tomcat-embed-el-9.0.21.jar;D:\repository\org\apache\tomcat\embed\tomcat-embed-websocket\9.0.21\tomcat-embed-websocket-9.0.21.jar;D:\repository\org\hibernate\validator\hibernate-validator\6.0.17.Final\hibernate-validator-6.0.17.Final.jar;D:\repository\javax\validation\validation-api\2.0.1.Final\validation-api-2.0.1.Final.jar;D:\repository\org\jboss\logging\jboss-logging\3.3.2.Final\jboss-logging-3.3.2.Final.jar;D:\repository\com\fasterxml\classmate\1.4.0\classmate-1.4.0.jar;D:\repository\org\springframework\spring-web\5.1.8.RELEASE\spring-web-5.1.8.RELEASE.jar;D:\repository\org\springframework\spring-beans\5.1.8.RELEASE\spring-beans-5.1.8.RELEASE.jar;D:\repository\org\springframework\spring-webmvc\5.1.8.RELEASE\spring-webmvc-5.1.8.RELEASE.jar;D:\repository\org\springframework\spring-aop\5.1.8.RELEASE\spring-aop-5.1.8.RELEASE.jar;D:\repository\org\springframework\spring-context\5.1.8.RELEASE\spring-context-5.1.8.RELEASE.jar;D:\repository\org\springframework\spring-expression\5.1.8.RELEASE\spring-expression-5.1.8.RELEASE.jar;D:\repository\org\springframework\spring-core\5.1.8.RELEASE\spring-core-5.1.8.RELEASE.jar;D:\repository\org\springframework\spring-jcl\5.1.8.RELEASE\spring-jcl-5.1.8.RELEASE.jar;D:\repository\org\springframework\boot\spring-boot-devtools\2.1.6.RELEASE\spring-boot-devtools-2.1.6.RELEASE.jar;D:\repository\org\springframework\boot\spring-boot\2.1.6.RELEASE\spring-boot-2.1.6.RELEASE.jar;D:\repository\org\springframework\boot\spring-boot-autoconfigure\2.1.6.RELEASE\spring-boot-autoconfigure-2.1.6.RELEASE.jar;D:\repository\org\glassfish\jaxb\jaxb-core\2.3.0.1\jaxb-core-2.3.0.1.jar;D:\repository\javax\xml\bind\jaxb-api\2.3.1\jaxb-api-2.3.1.jar;D:\repository\javax\activation\javax.activation-api\1.2.0\javax.activation-api-1.2.0.jar;D:\repository\org\glassfish\jaxb\txw2\2.3.1\txw2-2.3.1.jar;D:\repository\com\sun\istack\istack-commons-runtime\3.0.5\istack-commons-runtime-3.0.5.jar;D:\repository\com\sun\xml\bind\jaxb-impl\2.3.2\jaxb-impl-2.3.2.jar com.zsx.EurekaServerApplication
The Class-Path manifest attribute in D:\repository\org\glassfish\jaxb\jaxb-core\2.3.0.1\jaxb-core-2.3.0.1.jar referenced one or more files that do not exist: file:/D:/repository/org/glassfish/jaxb/jaxb-core/2.3.0.1/jaxb-api-2.3.0.jar,file:/D:/repository/org/glassfish/jaxb/jaxb-core/2.3.0.1/txw2-2.3.0.1.jar,file:/D:/repository/org/glassfish/jaxb/jaxb-core/2.3.0.1/istack-commons-runtime-3.0.5.jar
The Class-Path manifest attribute in D:\repository\com\sun\xml\bind\jaxb-impl\2.3.2\jaxb-impl-2.3.2.jar referenced one or more files that do not exist: file:/D:/repository/com/sun/xml/bind/jaxb-impl/2.3.2/jaxb-runtime-2.3.2.jar,file:/D:/repository/com/sun/xml/bind/jaxb-impl/2.3.2/txw2-2.3.2.jar,file:/D:/repository/com/sun/xml/bind/jaxb-impl/2.3.2/istack-commons-runtime-3.0.8.jar,file:/D:/repository/com/sun/xml/bind/jaxb-impl/2.3.2/stax-ex-1.8.1.jar,file:/D:/repository/com/sun/xml/bind/jaxb-impl/2.3.2/FastInfoset-1.2.16.jar,file:/D:/repository/com/sun/xml/bind/jaxb-impl/2.3.2/jakarta.activation-api-1.2.1.jar
2019-07-29 18:02:34.650 INFO 13972 --- [ restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : Devtools property defaults active! Set 'spring.devtools.add-properties' to 'false' to disable
2019-07-29 18:02:34.816 INFO 13972 --- [ restartedMain] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$83029c7d] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.1.6.RELEASE)
2019-07-29 18:02:34.952 INFO 13972 --- [ restartedMain] c.c.c.ConfigServicePropertySourceLocator : Fetching config from server at : http://localhost:8888
2019-07-29 18:02:36.008 INFO 13972 --- [ restartedMain] c.c.c.ConfigServicePropertySourceLocator : Connect Timeout Exception on Url - http://localhost:8888. Will be trying the next url if available
2019-07-29 18:02:36.009 WARN 13972 --- [ restartedMain] c.c.c.ConfigServicePropertySourceLocator : Could not locate PropertySource: I/O error on GET request for "http://localhost:8888/spring-cloud-eureka/default": Connection refused: connect; nested exception is java.net.ConnectException: Connection refused: connect
2019-07-29 18:02:36.014 INFO 13972 --- [ restartedMain] com.zsx.EurekaServerApplication : No active profile set, falling back to default profiles: default
2019-07-29 18:02:36.488 WARN 13972 --- [ restartedMain] o.s.boot.actuate.endpoint.EndpointId : Endpoint ID 'service-registry' contains invalid characters, please migrate to a valid format.
2019-07-29 18:02:36.606 INFO 13972 --- [ restartedMain] o.s.cloud.context.scope.GenericScope : BeanFactory id=2544dcbc-9e45-3f16-9381-c3bd51c4d6a3
2019-07-29 18:02:36.652 INFO 13972 --- [ restartedMain] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$83029c7d] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2019-07-29 18:02:36.903 INFO 13972 --- [ restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8081 (http)
2019-07-29 18:02:36.917 INFO 13972 --- [ restartedMain] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2019-07-29 18:02:36.917 INFO 13972 --- [ restartedMain] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.21]
2019-07-29 18:02:36.981 INFO 13972 --- [ restartedMain] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2019-07-29 18:02:36.982 INFO 13972 --- [ restartedMain] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 943 ms
2019-07-29 18:02:37.030 WARN 13972 --- [ restartedMain] c.n.c.sources.URLConfigurationSource : No URLs will be polled as dynamic configuration sources.
2019-07-29 18:02:37.030 INFO 13972 --- [ restartedMain] c.n.c.sources.URLConfigurationSource : To enable URLs as dynamic configuration sources, define System property archaius.configurationSource.additionalUrls or make config.properties available on classpath.
2019-07-29 18:02:37.034 INFO 13972 --- [ restartedMain] c.netflix.config.DynamicPropertyFactory : DynamicPropertyFactory is initialized with configuration sources: [email protected]
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.springframework.cglib.core.ReflectUtils (file:/D:/repository/org/springframework/spring-core/5.1.8.RELEASE/spring-core-5.1.8.RELEASE.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int,java.security.ProtectionDomain)
WARNING: Please consider reporting this to the maintainers of org.springframework.cglib.core.ReflectUtils
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
2019-07-29 18:02:37.389 INFO 13972 --- [ restartedMain] c.s.j.s.i.a.WebApplicationImpl : Initiating Jersey application, version 'Jersey: 1.19.1 03/11/2016 02:08 PM'
2019-07-29 18:02:37.417 INFO 13972 --- [ restartedMain] c.n.d.provider.DiscoveryJerseyProvider : Using JSON encoding codec LegacyJacksonJson
2019-07-29 18:02:37.418 INFO 13972 --- [ restartedMain] c.n.d.provider.DiscoveryJerseyProvider : Using JSON decoding codec LegacyJacksonJson
2019-07-29 18:02:37.471 INFO 13972 --- [ restartedMain] c.n.d.provider.DiscoveryJerseyProvider : Using XML encoding codec XStreamXml
2019-07-29 18:02:37.471 INFO 13972 --- [ restartedMain] c.n.d.provider.DiscoveryJerseyProvider : Using XML decoding codec XStreamXml
2019-07-29 18:02:37.624 WARN 13972 --- [ restartedMain] c.n.c.sources.URLConfigurationSource : No URLs will be polled as dynamic configuration sources.
2019-07-29 18:02:37.624 INFO 13972 --- [ restartedMain] c.n.c.sources.URLConfigurationSource : To enable URLs as dynamic configuration sources, define System property archaius.configurationSource.additionalUrls or make config.properties available on classpath.
2019-07-29 18:02:37.710 INFO 13972 --- [ restartedMain] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'applicationTaskExecutor'
2019-07-29 18:02:37.891 INFO 13972 --- [ restartedMain] o.s.b.d.a.OptionalLiveReloadServer : LiveReload server is running on port 35729
2019-07-29 18:02:37.976 INFO 13972 --- [ restartedMain] o.s.c.n.eureka.InstanceInfoFactory : Setting initial instance status as: STARTING
2019-07-29 18:02:37.987 INFO 13972 --- [ restartedMain] com.netflix.discovery.DiscoveryClient : Initializing Eureka in region us-east-1
2019-07-29 18:02:37.988 INFO 13972 --- [ restartedMain] com.netflix.discovery.DiscoveryClient : Client configured to neither register nor query for data.
2019-07-29 18:02:37.990 INFO 13972 --- [ restartedMain] com.netflix.discovery.DiscoveryClient : Discovery Client initialized at timestamp 1564394557990 with initial instances count: 0
2019-07-29 18:02:38.006 INFO 13972 --- [ restartedMain] c.n.eureka.DefaultEurekaServerContext : Initializing ...
2019-07-29 18:02:38.007 WARN 13972 --- [ restartedMain] c.n.eureka.cluster.PeerEurekaNodes : The replica size seems to be empty. Check the route 53 DNS Registry
2019-07-29 18:02:38.014 INFO 13972 --- [ restartedMain] c.n.e.registry.AbstractInstanceRegistry : Finished initializing remote region registries. All known remote regions: []
2019-07-29 18:02:38.015 INFO 13972 --- [ restartedMain] c.n.eureka.DefaultEurekaServerContext : Initialized
2019-07-29 18:02:38.020 INFO 13972 --- [ restartedMain] o.s.b.a.e.web.EndpointLinksResolver : Exposing 2 endpoint(s) beneath base path '/actuator'
2019-07-29 18:02:38.062 INFO 13972 --- [ restartedMain] o.s.c.n.e.s.EurekaServiceRegistry : Registering application SPRING-CLOUD-EUREKA with eureka with status UP
2019-07-29 18:02:38.063 INFO 13972 --- [ Thread-16] o.s.c.n.e.server.EurekaServerBootstrap : Setting the eureka configuration..
2019-07-29 18:02:38.064 INFO 13972 --- [ Thread-16] o.s.c.n.e.server.EurekaServerBootstrap : Eureka data center value eureka.datacenter is not set, defaulting to default
2019-07-29 18:02:38.064 INFO 13972 --- [ Thread-16] o.s.c.n.e.server.EurekaServerBootstrap : Eureka environment value eureka.environment is not set, defaulting to test
2019-07-29 18:02:38.068 INFO 13972 --- [ Thread-16] o.s.c.n.e.server.EurekaServerBootstrap : isAws returned false
2019-07-29 18:02:38.069 INFO 13972 --- [ Thread-16] o.s.c.n.e.server.EurekaServerBootstrap : Initialized server context
2019-07-29 18:02:38.069 INFO 13972 --- [ Thread-16] c.n.e.r.PeerAwareInstanceRegistryImpl : Got 1 instances from neighboring DS node
2019-07-29 18:02:38.069 INFO 13972 --- [ Thread-16] c.n.e.r.PeerAwareInstanceRegistryImpl : Renew threshold is: 1
2019-07-29 18:02:38.069 INFO 13972 --- [ Thread-16] c.n.e.r.PeerAwareInstanceRegistryImpl : Changing status to UP
2019-07-29 18:02:38.075 INFO 13972 --- [ Thread-16] e.s.EurekaServerInitializerConfiguration : Started Eureka Server
2019-07-29 18:02:38.086 INFO 13972 --- [ restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8081 (http) with context path ''
2019-07-29 18:02:38.087 INFO 13972 --- [ restartedMain] .s.c.n.e.s.EurekaAutoServiceRegistration : Updating port to 8081
2019-07-29 18:02:38.088 INFO 13972 --- [ restartedMain] com.zsx.EurekaServerApplication : Started EurekaServerApplication in 3.73 seconds (JVM running for 4.217)
2019-07-29 18:02:38.154 INFO 13972 --- [2)-192.168.56.1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring DispatcherServlet 'dispatcherServlet'
2019-07-29 18:02:38.154 INFO 13972 --- [2)-192.168.56.1] o.s.web.servlet.DispatcherServlet : Initializing Servlet 'dispatcherServlet'
2019-07-29 18:02:38.157 INFO 13972 --- [1)-192.168.56.1] c.c.c.ConfigServicePropertySourceLocator : Fetching config from server at : http://localhost:8888
2019-07-29 18:02:38.161 INFO 13972 --- [2)-192.168.56.1] o.s.web.servlet.DispatcherServlet : Completed initialization in 7 ms
2019-07-29 18:02:39.165 INFO 13972 --- [1)-192.168.56.1] c.c.c.ConfigServicePropertySourceLocator : Connect Timeout Exception on Url - http://localhost:8888. Will be trying the next url if available
2019-07-29 18:02:39.165 WARN 13972 --- [1)-192.168.56.1] c.c.c.ConfigServicePropertySourceLocator : Could not locate PropertySource: I/O error on GET request for "http://localhost:8888/spring-cloud-eureka/default": Connection refused: connect; nested exception is java.net.ConnectException: Connection refused: connect
二、熔断器仪表异常
1. 异常Unable to connect to Command Metric Stream.
2. 解决方法
2.1 方法1：添加
hystrix.stream的servlet配置到
ServletRegistrationBean
package com.zsx.config;
import com.netflix.hystrix.contrib.metrics.eventstream.HystrixMetricsStreamServlet;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@Configuration
public class HystrixServletDefinitions {
@Bean(name = "hystrixRegistrationBean")
public ServletRegistrationBean servletRegistrationBean() {
ServletRegistrationBean registration = new ServletRegistrationBean(
new HystrixMetricsStreamServlet(), "/hystrix.stream");
registration.setName("hystrixServlet");
registration.setLoadOnStartup(1);
return registration;
}
}
2.2 方法2：
2.2.1 添加依赖
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency> 2.2.2 application.yml文件添加配置
management:
endpoints:
web:
exposure:
include: hystrix.stream
base-path: / 3. 参考资料：https://github.com/Netflix/Hystrix/issues/1566
三、配置Spring Boot Admin服务端时出现异常
1. 异常详情
2019-08-08 17:29:45.441 ERROR [spring-cloud-admin-server,,,] 12052 --- [nio-8092-exec-8] o.a.catalina.connector.CoyoteAdapter : Exception while processing an asynchronous request
java.lang.IllegalStateException: Calling [asyncError()] is not valid for a request with Async state [MUST_DISPATCH]
at org.apache.coyote.AsyncStateMachine.asyncError(AsyncStateMachine.java:440) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.apache.coyote.AbstractProcessor.action(AbstractProcessor.java:512) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.apache.coyote.Request.action(Request.java:430) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.apache.catalina.core.AsyncContextImpl.setErrorState(AsyncContextImpl.java:401) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.apache.catalina.connector.CoyoteAdapter.asyncDispatch(CoyoteAdapter.java:239) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.apache.coyote.AbstractProcessor.dispatch(AbstractProcessor.java:241) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:53) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:853) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1587) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[na:na]
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[na:na]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na] 2. 解决方法：
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<artifactId>spring-boot-starter-tomcat</artifactId>
<groupId>org.springframework.boot</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jetty</artifactId>
</dependency> 3. 参考资料：https://stackoverflow.com/questions/53605197/calling-asyncerror-is-not-valid-for-a-request-with-async-state-must-dispatc
https://github.com/spring-projects/spring-boot/issues/15057
https://github.com/codecentric/spring-boot-admin/issues/1039
四、服务中心启动后报异常
org.apache.http.conn.ConnectTimeoutException: Connect to localhost:8761 timed out
1. 异常详情
2020-03-26 11:16:48.197 INFO 1344 --- [nio-8088-exec-4] c.n.e.registry.AbstractInstanceRegistry : Registered instance MY-EUREKA-CLIENT/zsx:my-eureka-client:8089 with status UP (replication=false)
2020-03-26 11:16:49.135 ERROR 1344 --- [get_localhost-7] c.n.e.cluster.ReplicationTaskProcessor : Network level connection to peer localhost; retrying after delay
com.sun.jersey.api.client.ClientHandlerException: org.apache.http.conn.ConnectTimeoutException: Connect to localhost:8761 timed out
at com.sun.jersey.client.apache4.ApacheHttpClient4Handler.handle(ApacheHttpClient4Handler.java:187) ~[jersey-apache-client4-1.19.1.jar:1.19.1]
at com.netflix.eureka.cluster.DynamicGZIPContentEncodingFilter.handle(DynamicGZIPContentEncodingFilter.java:48) ~[eureka-core-1.9.17.jar:1.9.17]
at com.netflix.discovery.EurekaIdentityHeaderFilter.handle(EurekaIdentityHeaderFilter.java:27) ~[eureka-client-1.9.17.jar:1.9.17]
at com.sun.jersey.api.client.Client.handle(Client.java:652) ~[jersey-client-1.19.1.jar:1.19.1]
at com.sun.jersey.api.client.WebResource.handle(WebResource.java:682) ~[jersey-client-1.19.1.jar:1.19.1]
at com.sun.jersey.api.client.WebResource.access$200(WebResource.java:74) ~[jersey-client-1.19.1.jar:1.19.1]
at com.sun.jersey.api.client.WebResource$Builder.post(WebResource.java:570) ~[jersey-client-1.19.1.jar:1.19.1]
at com.netflix.eureka.transport.JerseyReplicationClient.submitBatchUpdates(JerseyReplicationClient.java:117) ~[eureka-core-1.9.17.jar:1.9.17]
at com.netflix.eureka.cluster.ReplicationTaskProcessor.process(ReplicationTaskProcessor.java:80) ~[eureka-core-1.9.17.jar:1.9.17]
at com.netflix.eureka.util.batcher.TaskExecutors$BatchWorkerRunnable.run(TaskExecutors.java:190) ~[eureka-core-1.9.17.jar:1.9.17]
at java.base/java.lang.Thread.run(Thread.java:830) ~[na:na]
Caused by: org.apache.http.conn.ConnectTimeoutException: Connect to localhost:8761 timed out
at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:123) ~[httpclient-4.5.11.jar:4.5.11]
at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:180) ~[httpclient-4.5.11.jar:4.5.11]
at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:144) ~[httpclient-4.5.11.jar:4.5.11]
at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:134) ~[httpclient-4.5.11.jar:4.5.11]
at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:605) ~[httpclient-4.5.11.jar:4.5.11]
at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:440) ~[httpclient-4.5.11.jar:4.5.11]
at org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:835) ~[httpclient-4.5.11.jar:4.5.11]
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:118) ~[httpclient-4.5.11.jar:4.5.11]
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56) ~[httpclient-4.5.11.jar:4.5.11]
at com.sun.jersey.client.apache4.ApacheHttpClient4Handler.handle(ApacheHttpClient4Handler.java:173) ~[jersey-apache-client4-1.19.1.jar:1.19.1]
... 10 common frames omitted
2. 异常原因
使用了默认的
defaultZone
@ConfigurationProperties(EurekaClientConfigBean.PREFIX)
public class EurekaClientConfigBean implements EurekaClientConfig, Ordered {
/**
* Default prefix for Eureka client config properties.
*/
public static final String PREFIX = "eureka.client";
/**
* Default Eureka URL.
*/
public static final String DEFAULT_URL = "http://localhost:8761" + DEFAULT_PREFIX
+ "/";
/**
* Default availability zone if none is resolved based on region.
*/
public static final String DEFAULT_ZONE = "defaultZone";
private Map<String, String> serviceUrl = new HashMap<>();
{
this.serviceUrl.put(DEFAULT_ZONE, DEFAULT_URL);
}
} 3. 解决方法
在application.yml文件中添加如下内容
eureka:
client:
serviceUrl:
# 覆盖默认的defaultZone
defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/