grails3 添加dubbox和zookeeper配置-优快云博客

本文链接：https://blog.youkuaiyun.com/midWander/article/details/84829346

本文介绍如何解决在Grails项目中使用Dubbo时遇到的Logback与SLF4J的日志工厂冲突问题，提供了具体的依赖配置及解决方案。

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将dubbox 发布到本地maven库后，grails中引入方式：

dependencies {
    compile ('com.alibaba:dubbo:2.8.5')
    compile ('org.apache.zookeeper:zookeeper:3.4.8'){
        //处理冲突
        exclude(module: 'slf4j-log4j12')
    }
}

//下面的配置如果不配，在打包运行的时候tomcat会出现异常
configurations {
    compile.exclude group:'ch.qos.logback'
}

部署时tomcat异常信息：

Caused by: java.lang.IllegalArgumentException: LoggerFactory is not a Logback LoggerContext but Logback is on the classpath. Either remove Logback or the competing implementation (class org.apache.logging.slf4j.Log4jLoggerFactory loaded from file:/D:/apache-tomcat-9.0.0.M8-edu/apache-tomcat-9.0.0.M8/webapps/demo/WEB-INF/lib/log4j-slf4j-impl-2.4.1.jar). If you are using WebLogic you will need to add 'org.slf4j' to prefer-application-packages in WEB-INF/weblogic.xml Object of class [org.apache.logging.slf4j.Log4jLoggerFactory] must be an instance of class ch.qos.logback.classic.LoggerContext
	at org.springframework.util.Assert.isInstanceOf(Assert.java:346)
	at org.springframework.boot.logging.logback.LogbackLoggingSystem.getLoggerContext(LogbackLoggingSystem.java:221)
	at org.springframework.boot.logging.logback.LogbackLoggingSystem.getLogger(LogbackLoggingSystem.java:213)
	at org.springframework.boot.logging.logback.LogbackLoggingSystem.beforeInitialize(LogbackLoggingSystem.java:98)
	at org.springframework.boot.logging.LoggingApplicationListener.onApplicationStartedEvent(LoggingApplicationListener.java:216)
	at org.springframework.boot.logging.LoggingApplicationListener.onApplicationEvent(LoggingApplicationListener.java:198)
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