近期遇到一个很久没有启动过的项目, 然后启动失败, 报 java.lang.NoClassDefFoundError, 现在记录问题排查情况.

错误代码

  • 错误代码较长, 可以收缩, 直接看排查
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.]
[2020-04-10 13:26:11.478]-[main]-[]-[ERROR]-[org.springframework.boot.SpringApplication:821]-[Application run failed]
org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:155) ~[spring-boot-2.1.6.RELEASE.jar!/:2.1.6.RELEASE]
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543) ~[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 com.opay.im.WebApplication.main(WebApplication.java:32) [classes!/:1.0-SNAPSHOT]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_221]
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_221]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_221]
        at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_221]
        at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48) [opay-im-web-1.0-SNAPSHOT.jar:1.0-SNAPSHOT]
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:87) [opay-im-web-1.0-SNAPSHOT.jar:1.0-SNAPSHOT]
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:50) [opay-im-web-1.0-SNAPSHOT.jar:1.0-SNAPSHOT]
        at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:58) [opay-im-web-1.0-SNAPSHOT.jar:1.0-SNAPSHOT]
Caused by: org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat
        at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:124) ~[spring-boot-2.1.6.RELEASE.jar!/:2.1.6.RELEASE]
        at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.<init>(TomcatWebServer.java:86) ~[spring-boot-2.1.6.RELEASE.jar!/:2.1.6.RELEASE]
        at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getTomcatWebServer(TomcatServletWebServerFactory.java:414) ~[spring-boot-2.1.6.RELEASE.jar!/:2.1.6.RELEASE]
        at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getWebServer(TomcatServletWebServerFactory.java:178) ~[spring-boot-2.1.6.RELEASE.jar!/:2.1.6.RELEASE]
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:179) ~[spring-boot-2.1.6.RELEASE.jar!/:2.1.6.RELEASE]
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:152) ~[spring-boot-2.1.6.RELEASE.jar!/:2.1.6.RELEASE]
        ... 16 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'servletEndpointRegistrar' defined in class path resource [org/springframework/boot/actuate/autoconfigure/endpoint/web/ServletEndpointManagementContextConfiguration$WebMvcServletEndpointManagementContextConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.boot.actuate.endpoint.web.ServletEndpointRegistrar]: Factory method 'servletEndpointRegistrar' threw exception; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'healthEndpoint' defined in class path resource [org/springframework/boot/actuate/autoconfigure/health/HealthEndpointConfiguration.class]: Unsatisfied dependency expressed through method 'healthEndpoint' parameter 1; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'healthIndicatorRegistry' defined in class path resource [org/springframework/boot/actuate/autoconfigure/health/HealthIndicatorAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.boot.actuate.health.HealthIndicatorRegistry]: Factory method 'healthIndicatorRegistry' threw exception; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'org.springframework.boot.actuate.autoconfigure.jdbc.DataSourceHealthIndicatorAutoConfiguration': Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'dataSource' defined in class path resource [com/opay/im/config/DatabaseConfig.class]: Unsatisfied dependency expressed through method 'dataSource' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'defaultDataSource' defined in class path resource [com/opay/im/config/DatabaseConfig.class]: Initialization of bean failed; nested exception is java.lang.NoClassDefFoundError: org/apache/shardingsphere/api/config/RuleConfiguration
        at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:627) ~[spring-beans-5.1.8.RELEASE.jar!/:5.1.8.RELEASE]
        at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:607) ~[spring-beans-5.1.8.RELEASE.jar!/:5.1.8.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1321) ~[spring-beans-5.1.8.RELEASE.jar!/:5.1.8.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1160) ~[spring-beans-5.1.8.RELEASE.jar!/:5.1.8.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555) ~[spring-beans-5.1.8.RELEASE.jar!/:5.1.8.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515) ~[spring-beans-5.1.8.RELEASE.jar!/:5.1.8.RELEASE]
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320) ~[spring-beans-5.1.8.RELEASE.jar!/:5.1.8.RELEASE]
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.1.8.RELEASE.jar!/:5.1.8.RELEASE]
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318) ~[spring-beans-5.1.8.RELEASE.jar!/:5.1.8.RELEASE]
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:204) ~[spring-beans-5.1.8.RELEASE.jar!/:5.1.8.RELEASE]
        at org.springframework.boot.web.servlet.ServletContextInitializerBeans.getOrderedBeansOfType(ServletContextInitializerBeans.java:211) ~[spring-boot-2.1.6.RELEASE.jar!/:2.1.6.RELEASE]
        at org.springframework.boot.web.servlet.ServletContextInitializerBeans.getOrderedBeansOfType(ServletContextInitializerBeans.java:202) ~[spring-boot-2.1.6.RELEASE.jar!/:2.1.6.RELEASE]
        at org.springframework.boot.web.servlet.ServletContextInitializerBeans.addServletContextInitializerBeans(ServletContextInitializerBeans.java:96) ~[spring-boot-2.1.6.RELEASE.jar!/:2.1.6.RELEASE]
        at org.springframework.boot.web.servlet.ServletContextInitializerBeans.<init>(ServletContextInitializerBeans.java:85) ~[spring-boot-2.1.6.RELEASE.jar!/:2.1.6.RELEASE]
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.getServletContextInitializerBeans(ServletWebServerApplicationContext.java:252) ~[spring-boot-2.1.6.RELEASE.jar!/:2.1.6.RELEASE]

问题定位

  1. 开始排查是因为缺少 sharding-core-api-4.0.0-RC2.2-1.8.jar 包下的一个文件, 但是本地是有的
  2. 本地可以启动
  3. 服务器启动失败, 可能是jar包缺少
  4. 最后结果发现 sharding-core-api-4.0.0-RC2.2-1.8.jar 是通过公司封装的一个包传递进来的, 而封装的那个jar包在私服上已经被删除了. 删除原因