WebLogic发布war包启动报错Cannot set web app root system property when WAR file is not e

web应用打war包部署在weblogic，启动报错
Caused By: java.lang.IllegalStateException: Cannot set web app root system property when WAR file is not expanded
at org.springframework.web.util.WebUtils.setWebAppRootSystemProperty(WebUtils.java:139)
at org.springframework.web.util.Log4jWebConfigurer.initLogging(Log4jWebConfigurer.java:118)
at org.springframework.web.util.Log4jConfigListener.contextInitialized(Log4jConfigListener.java:47)
at weblogic.servlet.internal.EventsManager$FireContextListenerAction.run(EventsManager.java:481)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
Truncated. see log file for complete stacktrace

[b]解决方法：[/b]

在web.xml文件中添加参数：
  <context-param>
    <param-name>log4jExposeWebAppRoot</param-name>
    <param-value>false</param-value>
  </context-param>