java.lang.IllegalStateException: Context has been already given a name报错分析解决-优快云博客

本文链接：https://blog.youkuaiyun.com/weixin_40803011/article/details/130359714

背景

将dubbo的注册中心从zk切换到nacos后，在kubesphere中启动应用时发现如下报错。根据报错进行本地复现并分析出原因

jreap-demo [main]2023-04-25 09:09 [  ERROR] o.s.b.SpringApplication --- Application run failed
 java.lang.IllegalStateException: Logback configuration error detected: 
 ERROR in ch.qos.logback.classic.joran.action.ContextNameAction - Failed to rename context [applicationName_IS_UNDEFINED] as [jreap-demo] java.lang.IllegalStateException: Context has been already given a name
  at org.springframework.boot.logging.logback.LogbackLoggingSystem.loadConfiguration(LogbackLoggingSystem.java:167)
  at org.springframework.boot.logging.AbstractLoggingSystem.initializeWithConventions(AbstractLoggingSystem.java:80)at org.springframework.boot.logging.AbstractLoggingSystem.initialize(AbstractLoggingSystem.java:60)
  at org.springframework.boot.logging.logback.LogbackLoggingSystem.initialize(LogbackLoggingSystem.java:118)
  at org.springframework.boot.context.logging.LoggingApplicationListener.initializeSystem(LoggingApplicationListener.java:289)
  at org.springframework.boot.context.logging.LoggingApplicationListener.initialize(LoggingApplicationListener.java:264)
  at org.springframework.boot.context.logging.LoggingApplicationListener.onApplicationEnvironmentPreparedEvent(LoggingApplicationListener.java:226)
  at org.springframework.boot.context.logging.LoggingApplicationListener.onApplicationEvent(LoggingApplicationListener.java:203)
  at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172)
  at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165)
  at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139)
  at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:127)
  at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:76)
  at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:53)
  at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:342)
  at org.springframework.boot.SpringApplication.run(SpringApplication.java:305)
  at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215)
  at org.springframework.boot.SpringApplication.run(SpringApplication.java:1204)
  at com.example.demo.boot.JreapDemoBootApplication.main(JreapDemoBootApplication.java:49)

错误分析并解决

根据报错信息找到报错位置：ContextNameAction

1.1 断点ContextBase#setName方法发现其默认值为default，并且只能修改一次
[applicationName_IS_UNDEFINED] as [jreap-demo] 错误说明项目里有两处设置logback的contextName，查询项目确实有两处设置了spring.application.name的值（下面是我的相关配置）
根据上面分析可以猜测应该是有个配置没有生效，经过排查发现因为没有将bootstrap.yaml打到容器里，并且logback优先加载bootstrap.yaml。