【Spring】使用Log4jConfigListener动态监听log4j.properties

 在web.xml上添加如下配置即可动态监听log4j.properties的变化

<!-- 需要监听的log4j文件地址 -->!
<context-param>
	<param-name>log4jConfigLocation</param-name>
	<param-value>classpath:log4j.properties</param-value>
</context-param>

<!-- 监听log4j.properties -->
<listener>
	<listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
</listener>