Question

启动tomcat报错：log4j:WARN No appenders could be found for logger

log4j:WARN No appenders could be found for logger (com.opensymphony.xwork2.config.providers.XmlConfigurationProvider).
log4j:WARN Please initialize the log4j system properly.
重新部署又会报如下的错误：

2015-1-15 10:18:37 org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
严重: The web application [/NETCTOSS] created a ThreadLocal with key of type [com.opensymphony.xwork2.inject.ContainerImpl$10] (value [com.opensymphony.xwork2.inject.ContainerImpl$10@2264da]) and a value of type [java.lang.Object[]] (value [[Ljava.lang.Object;@b34b1]) but failed to remove it when the web application was stopped. This is very likely to create a memory leak.
2015-1-15 10:18:37 org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
严重: The web application [/NETCTOSS] created a ThreadLocal with key of type [com.opensymphony.xwork2.inject.ContainerImpl$10] (value [com.opensymphony.xwork2.inject.ContainerImpl$10@2264da]) and a value of type [java.lang.Object[]] (value [[Ljava.lang.Object;@107dcfe]) but failed to remove it when the web application was stopped. This is very likely to create a memory leak.
log4j:WARN No appenders could be found for logger (com.opensymphony.xwork2.config.providers.XmlConfigurationProvider).
log4j:WARN Please initialize the log4j system properly.

Answer 1

你贴的这些内容不是 root cause
这只是说被 shutdown 的时候，xwork2 退出不了
但是，主要的问题应该是这个 app 启动的时候，出错了

追问

启动的时候只有这个
log4j:WARN No appenders could be found for logger (com.opensymphony.xwork2.config.providers.XmlConfigurationProvider).
log4j:WARN Please initialize the log4j system properly.

追答

你把 log 配好，再看
另外，看一下 tomcat 本身的日志