Tomcat配置log4j

web.xml中加入以下内容

    <context-param>        <param-name>webAppRootKey</param-name>        <param-value>broadwave.root</param-value>    </context-param>    <context-param>        <param-name>log4jConfigLocation</param-name>        <param-value>/WEB-INF/config/log4j.properties</param-value>    </context-param>    <listener>        <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>    </listener>

然后在log4j.properties文件中就可以用 ${broadwave.root} 来使用当前web的根路径了