Tomcat6.0.16之前版本ServletContextListener不能加载的bug
INFO: The listener "listeners.ContextListener" is already configured for this context. The duplicate definition has been ignored. 2008/08/06 05:26:13 org.apache.catalina.core.StandardContext addApplicationListener INFO: The listener "listeners.SessionListener" is already configured for this context. The duplicate definition has been ignored.
提示已经加载，被忽略。下载了最新的Tomcat6.0.18得到解决。
