mybatis WARN No appenders could be found for logger的解決方法

log4j:WARN No appenders could be found for logger (org.apache.ibatis.logging.LogFactory).
log4j:WARN Please initialize the log4j system properly.

log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.

 

網上有好多解決辦法都不管用，這個提示應該是讀入web應用程序的log4j.properties文件之前就報出來了。是在加載org.springframework.web.context.ContextLoader這個listener的時候沒找到log4j的配置文件造成的。 

仔細查看web.xml發現在加載org.springframework.web.context.ContextLoader這個listener之后才加載org.springframework.web.util.Log4jConfigListener，把log4j的配置放到org.springframework.web.context.ContextLoader之前，就可以解決這個問題了

web.xml中

<!-- 以下3項參數與log4j的配置相關 -->  
      
    <context-param>  
        <param-name>log4jConfigLocation</param-name>  
        <param-value>/WEB-INF/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>