报错如下

Caused by: java.lang.NoClassDefFoundError: Lorg/slf4j/Logger;at java.lang.Class.getDeclaredFields0(Native Method)at java.lang.Class.privateGetDeclaredFields(Class.java:2291)at java.lang.Class.getDeclaredFields(Class.java:1743)at org.apache.catalina.util.Introspection.getDeclaredFields(Introspection.java:106)at org.apache.catalina.startup.WebAnnotationSet.loadFieldsAnnotation(WebAnnotationSet.java:263)at org.apache.catalina.startup.WebAnnotationSet.loadApplicationFilterAnnotations(WebAnnotationSet.java:112)at org.apache.catalina.startup.WebAnnotationSet.loadApplicationAnnotations(WebAnnotationSet.java:66)at org.apache.catalina.startup.ContextConfig.applicationAnnotationsConfig(ContextConfig.java:405)at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:881)at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:376)at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5322)at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)... 10 more

If you are using Log4j the minimum jar files needed is:

  • slf4j-api-1.4.3.jar

  • slf4j-log4j12-1.4.3.jar

  • log4j-1.2.8.jar

下载上面全部,注意版本,注意

slf4j-log4j12-1.4.3.jar

和其他2个的关系

转载于:https://my.oschina.net/liangzhenghui/blog/260961

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