<context-param> <param-name>webAppRootKey</param-name> <param-value>webApp.root</param-value> </context-param> <context-param> <param-name>log4jConfigLocation</param-name> <param-value>WEB-INF/classes/log4j2.xml</param-value> </context-param> <context-param> <param-name>log4jRefreshInterval</param-name> <param-value>3000</param-value> </context-param> <listener> <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class> </listener>
以上是web.xml 文件需要的配置
在log4j2 的xml文件中,使用“${sys:webApp.root}”,因爲webApp.root是system properties,所以必須使用sys前綴。