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java - log4j、log4j2冲突问题

迷茫迷茫2763 days ago785

reply all(3)I'll reply

  • PHP中文网

    PHP中文网2017-04-18 10:40:47

      The related dependencies of
    1. zookeeper-3.4.0 之后的版本已经使用了slf4j的日志接口,可以直接将log4j are excluded.

    2. If zookeeper3.4.0之前的版本需要对zookeeper upgrade, repeat step 1

    zookeeper-3.4.0


    kafka_2.9.1-0.8.2.2

    <dependency>
        <groupId>com.101tec</groupId>
        <artifactId>zkclient</artifactId>
        <version>0.3</version>
        <scope>compile</scope>
    </dependency>

    Just checked it outkafka中使用的zkclient版本比较的低,在高版本中zkclient也已经切换至slf4j的接口了,可以将zkclientUpgrade it.

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  • PHP中文网

    PHP中文网2017-04-18 10:40:47

    <dependency>
          <groupId>org.apache.kafka</groupId>
          <artifactId>kafka_2.9.1</artifactId>
          <version>0.8.2.2</version>
          <exclusions>
              <exclusion>
                   <artifactId>log4j</artifactId>
                   <groupId>log4j</groupId>
              </exclusion>
         </exclusions>
    </dependency>

    I got an error after doing the exclusion:

    java.lang.NoClassDefFoundError: org/apache/log4j/Logger
    
        at org.I0Itec.zkclient.ZkClient.<clinit>(ZkClient.java:57)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at org.junit.runners.model.FrameworkMethod.runReflectiveCall(FrameworkMethod.java:50)
        at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
        at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
        at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
        at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
        at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
        at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
        at org.junit.runners.ParentRunner.run(ParentRunner.java:290)
        at org.junit.runners.ParentRunner.schedule(ParentRunner.java:71)
        at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
        at org.junit.runners.ParentRunner.accessrrreee0(ParentRunner.java:58)
        at org.junit.runners.ParentRunner.evaluate(ParentRunner.java:268)
        at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
        at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
        at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:119)
        at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:42)
        at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:234)
        at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:74)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144)
    Caused by: java.lang.ClassNotFoundException: org.apache.log4j.Logger
        at java.net.URLClassLoader.run(URLClassLoader.java:366)
        at java.net.URLClassLoader.run(URLClassLoader.java:355)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
        ... 30 more

    zookeeper version 3.4.6

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  • 巴扎黑

    巴扎黑2017-04-18 10:40:47

    After excluding log4j, add this log4j-1.2-api

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