log4j - weblogic log4j 滚动追加器

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，我在控制台上看到了这个异常。

Answer 1

看起来您的类路径中缺少 apache-log4j-extras-1.1.jar；它是使用 RollingFileAppender 所必需的。

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