在spring的web项目中常常会在tomcat启动的时候出现这种提示:
引用
log4j:WARN No appenders could be found for logger (org.springframework.web.context.ContextLoader).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN Please initialize the log4j system properly.
log4j.properties 前面要写日志级别,不能只写后面的
log4j.rootLogger= info,stdout
网上有好多解决办法都不管用,这个提示应该是读入web应用程序的log4j.properties文件之前就报出来了。是在加载org.springframework.web.context.ContextLoader这个listener的时候没找到log4j的配置文件造成的。
仔细查看web.xml发现在加载org.springframework.web.context.ContextLoader这个listener之后才加载org.springframework.web.util.Log4jConfigListener,把log4j的配置放到org.springframework.web.context.ContextLoader之前,就可以解决这个问题了。
<!-- 以下3项参数与log4j的配置相关 --> <context-param> <param-name>log4jConfigLocation</param-name> <param-value>classpath:log4j.properties</param-value> </context-param> <context-param> <param-name>log4jRefreshInterval</param-name> <param-value>60000</param-value> </context-param> <listener> <listener-class> org.springframework.web.util.Log4jConfigListener </listener-class> </listener> <!-- end --> <listener> <listener-class> org.springframework.web.context.ContextLoaderListener </listener-class> </listener>
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