weblogic log4j滚动appender

Question

log4j:ERROR Could not create an Appender. Reported error follows. 
java.lang.ClassNotFoundException: org.apache.log4j.rolling.RollingFileAppender 
    at weblogic.utils.classloaders.GenericClassLoader.findLocalClass(GenericClassLoader.java:297) 
    at weblogic.utils.classloaders.GenericClassLoader.findClass(GenericClassLoader.java:270) 
    at weblogic.utils.classloaders.ChangeAwareClassLoader.findClass(ChangeAwareClassLoader.java:64) 
    at java.lang.ClassLoader.loadClass(ClassLoader.java:307) 
    at java.lang.ClassLoader.loadClass(ClassLoader.java:248) 
    at weblogic.utils.classloaders.GenericClassLoader.loadClass(GenericClassLoader.java:179) 
    at weblogic.utils.classloaders.ChangeAwareClassLoader.loadClass(ChangeAwareClassLoader.java:52) 
    at java.lang.Class.forName0(Native Method) 
    at java.lang.Class.forName(Class.java:169) 
    at org.apache.log4j.helpers.Loader.loadClass(Loader.java:198) 
    at org.apache.log4j.xml.DOMConfigurator.parseAppender(DOMConfigurator.java:247) 
    at org.apache.log4j.xml.DOMConfigurator.findAppenderByName(DOMConfigurator.java:176) 
    at org.apache.log4j.xml.DOMConfigurator.findAppenderByReference(DOMConfigurator.java:191) 
    at org.apache.log4j.xml.DOMConfigurator.parseAppender(DOMConfigurator.java:284) 
    at org.apache.log4j.xml.DOMConfigurator.findAppenderByName(DOMConfigurator.java:176) 
    at org.apache.log4j.xml.DOMConfigurator.findAppenderByReference(DOMConfigurator.java:191) 
    at org.apache.log4j.xml.DOMConfigurator.parseChildrenOfLoggerElement(DOMConfigurator.java:523) 
    at org.apache.log4j.xml.DOMConfigurator.parseCategory(DOMConfigurator.java:436) 
    at org.apache.log4j.xml.DOMConfigurator.parse(DOMConfigurator.java:999) 
    at org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:867) 
    at org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:773) 
    at org.apache.log4j.helpers.OptionConverter.selectAndConfigure(OptionConverter.java:483) 
    at org.apache.log4j.LogManager.<clinit>(LogManager.java:127) 

请帮我解决这个问题。 我已经在weblogic服务器域中复制了log4j.xml，但是当我启动服务器时，控制台上出现此异常。

Answer 1

看起来你在类路径中缺少apache-log4j-extras-1.1.jar;需要使用RollingFileAppender。

http://www.apache.org/dyn/closer.cgi/logging/log4j/extras/1.2.17/apache-log4j-extras-1.2.17-bin.tar.gz