Could not find an appender,Did you define it below instead of above in the configuration file?

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已于 2023-02-22 10:31:22 修改

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分类专栏： java 文章标签： spring spring boot logback

于 2023-02-22 10:27:05 首次发布

本文链接：https://blog.youkuaiyun.com/u013255226/article/details/129157382

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文章描述了一个在使用SpringBoot2.0.2.RELEASE时遇到的自定义logbackAppender加载失败的问题，错误堆栈显示无法实例化类型com.logging.adapter.appender.ErrorMsgAppender。此问题在升级SpringBoot版本至2.3.11.RELEASE后得到解决。解决方案是更新SpringBoot版本。

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无法加载自定义logback appender, 我引用的spring-boot版本是2.0.2.RELEASE

<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>

，升级到2.3.11后可正常使用

<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.3.11.RELEASE</version>

查了网上的方法，最后更新了版本好了 mark一下

错误堆栈

ERROR in ch.qos.logback.core.joran.action.AppenderAction - Could not create an Appender of type [com.logging.adapter.appender.ErrorMsgAppender]. ch.qos.logback.core.util.DynamicClassLoadingException: Failed to instantiate type com..logging.adapter.appender.ErrorMsgAppender
ERROR in ch.qos.logback.core.joran.spi.Interpreter@11:105 - ActionException in Action for tag [appender] ch.qos.logback.core.joran.spi.ActionException: ch.qos.logback.core.util.DynamicClassLoadingException: Failed to instantiate type com..logging.adapter.appender.ErrorMsgAppender
ERROR in ch.qos.logback.core.joran.action.AppenderRefAction - Could not find an appender named [errorMsgAdapter]. Did you define it below instead of above in the configuration file?
ERROR in ch.qos.logback.core.joran.action.AppenderRefAction - See http://logback.qos.ch/codes.html#appender_order for more details.
ERROR in ch.qos.logback.core.joran.action.AppenderRefAction - Could not find an appender named [errorMsgAdapter]. Did you define it below instead of above in the configuration file?
ERROR in ch.qos.logback.core.joran.action.AppenderRefAction - See http://logback.qos.ch/codes.html#appender_order for more details.
   at org.springframework.boot.logging.logback.LogbackLoggingSystem.loadConfiguration(LogbackLoggingSystem.java:166)
   at org.springframework.boot.logging.AbstractLoggingSystem.initializeWithConventions(AbstractLoggingSystem.java:82)
   at org.springframework.boot.logging.AbstractLoggingSystem.initialize(AbstractLoggingSystem.java:60)
   at org.springframework.boot.logging.logback.LogbackLoggingSystem.initialize(LogbackLoggingSystem.java:114)
   at org.springframework.boot.context.logging.LoggingApplicationListener.initializeSystem(LoggingApplicationListener.java:264)
   at org.springframework.boot.context.logging.LoggingApplicationListener.initialize(LoggingApplicationListener.java:237)
   at org.springframework.boot.context.logging.LoggingApplicationListener.onApplicationEnvironmentPreparedEvent(LoggingApplicationListener.java:200)
   at org.springframework.boot.context.logging.LoggingApplicationListener.onApplicationEvent(LoggingApplicationListener.java:173)
   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:74)
   at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:54)
   at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:358)
   at org.springframework.boot.SpringApplication.run(SpringApplication.java:317)
   at org.springframework.boot.SpringApplication.run(SpringApplication.java:1255)
   at org.springframework.boot.SpringApplication.run(SpringApplication.java:1243)
   at com.data.Application.main(Application.java:16)