第一步將 log4j-1.2.14.jar這個包加入到WEB-INF/lib下,然後構建路徑
第二步:在Web.xml,添加如下
<context-param>
<param-name>webAppRootKey</param-name>
<param-value>Study.root</param-value>紅色的字換成你工程名字
</context-param>
<listener>
<listener-class>
org.springframework.web.util.Log4jConfigListener
</listener-class>
</listener>
<context-param>
<param-name>log4jConfigLocation</param-name>
<param-value>/WEB-INF/log4j.properties</param-value>
</context-param>
<context-param>
<param-name>log4jRefreshInterval</param-name>//表示每隔6000毫秒讀取一下log4j.properties文件
<param-value>6000</param-value>
</context-param>
第三步:
添加log4j.properties這個文件要根據自己的需要寫:我的是湊來的
首先INFO,DEBUG,ERROR三類分在三個文件,然後關閉了struts,和spring的輸出(太多,看着頭疼)
log4j.rootLogger=info,stdout,info,debug,error
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=[%-5p] [%d{HH:mm:ss}] %c - %m%n
log4j.logger.info=info
log4j.appender.info=org.apache.log4j.DailyRollingFileAppender
log4j.appender.info.layout=org.apache.log4j.PatternLayout
log4j.appender.info.layout.ConversionPattern=[%-5p] [%d{HH:mm:ss}] %c - %m%n
log4j.appender.info.datePattern='.'yyyy-MM-dd
log4j.appender.info.Threshold = INFO
log4j.appender.info.append=true
log4j.appender.info.File=${Study.root}/WEB-INF/logs/info.log
log4j.logger.debug=debug
log4j.appender.debug=org.apache.log4j.DailyRollingFileAppender
log4j.appender.debug.layout=org.apache.log4j.PatternLayout
log4j.appender.debug.layout.ConversionPattern=[%-5p] [%d{HH:mm:ss}] %c - %m%n
log4j.appender.debug.datePattern='.'yyyy-MM-dd
log4j.appender.debug.Threshold = DEBUG
log4j.appender.debug.append=true
log4j.appender.debug.File=${Study.root}/WEB-INF/logs/debug.log
log4j.logger.error=error
log4j.appender.error=org.apache.log4j.DailyRollingFileAppender
log4j.appender.error.layout=org.apache.log4j.PatternLayout
log4j.appender.error.layout.ConversionPattern=[%-5p] [%d{HH:mm:ss}] %c - %m%n
log4j.appender.error.datePattern='.'yyyy-MM-dd
log4j.appender.error.Threshold = ERROR
log4j.appender.error.append=true
log4j.appender.error.File=${Study.root}/WEB-INF/logs/error.log//紅色字體換成你的工程名字,(沒用<!--->標記,你懂,直接複製這段代碼,你的編譯器會報錯的,你就發現這句了)
log4j.logger.org.springframework=OFF
log4j.logger.org.apache.struts2=OFF
log4j.logger.com.opensymphony.xwork2=OFF
http://blog.csdn.net/hubiao_0618/article/details/45334587
http://blog.csdn.net/zhaoxiao2008/article/details/7907553
使用時
private static Logger logger = Logger.getLogger("我的日誌");//制定名字
private static Logger logger = Logger.getLogger(yourclass.class.getname());//指明類名
logger.info("隨便寫點啥");
另外付兩個鏈接,講的很詳細
ok!!