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（1）引入log4j的jar包：
官网下载地址：
（2）在web.xml中添加log4j配置：
| 1 2 3 4 5 6 7 8 | < 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 > |
（3）log4j属性文件log4j.properties：
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 | #Root Category log4j.rootLogger=debug,stdout,D,E #Console log4j.appender.stdout = org.apache.log4j.ConsoleAppender log4j.appender.stdout.Target = System.out log4j.appender.stdout.layout = org.apache.log4j.PatternLayout log4j.appender.stdout.layout.ConversionPattern = [%-5p] %d{yyyy-MM-dd HH:mm:ss,SSS} method:%l%n%m%n #DEBUG log4j.appender.D = org.apache.log4j.DailyRollingFileAppender log4j.appender.D.File = ${catalina.base}/logs/debug.log log4j.appender.D.Append = true log4j.appender.D.Threshold = DEBUG log4j.appender.D.layout = org.apache.log4j.PatternLayout log4j.appender.D.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n #ERROR log4j.appender.E = org.apache.log4j.DailyRollingFileAppender log4j.appender.E.File =${catalina.base}/logs/error.log log4j.appender.E.Append = true log4j.appender.E.Threshold = ERROR log4j.appender.E.layout = org.apache.log4j.PatternLayout log4j.appender.E.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n #IBATIS Category log4j.logger.com.ibatis=DEBUG log4j.logger.com.ibatis.common.jdbc.SimpleDataSource=DEBUG log4j.logger.com.ibatis.common.jdbc.ScriptRunner=DEBUG log4j.logger.com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate=DEBUG log4j.logger.java.sql.Connection=DEBUG log4j.logger.java.sql.Statement=DEBUG log4j.logger.java.sql.PreparedStatement=DEBUG log4j.logger.java.sql.ResultSet=DEBUG #WS Logger for reporting log4j.logger.WS=INFO,WS log4j.appender.WS=org.apache.log4j.DailyRollingFileAppender log4j.appender.WS.File=${catalina.base}/logs/ws.log log4j.appender.WS.layout=org.apache.log4j.PatternLayout log4j.appender.WS.DatePattern ='.'yyyy-MM-dd log4j.appender.WS.layout.ConversionPattern=%d-[ws] %p %t %c - %m%n #Other Logger log4j.logger.org.springframework=INFO log4j.logger.com.ibatis.db=INFO log4j.logger.net.sf.json=ERROR log4j.logger.org.apache.cxf=DEBUG,WS |
注：我这里的配置文件并不是很好，仅供参考
（4）测试：
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | package cn.zifangsky.controller; import org.apache.log4j.Logger; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; @Controller public class TestController { private static Logger logger = Logger.getLogger(TestController. class ); @RequestMapping ( "/test.html" ) public void test(){ logger.info( "info测试" ); logger.debug( "debug测试 " ); logger.error( "error测试" ); } } |
控制台输出如下：
| 1 2 3 4 5 6 | [INFO ] 2016-11-06 18:01:28,000 method:cn.zifangsky.controller.TestController.test(TestController.java:13) info测试 [DEBUG] 2016-11-06 18:01:28,007 method:cn.zifangsky.controller.TestController.test(TestController.java:14) debug测试 [ERROR] 2016-11-06 18:01:28,007 method:cn.zifangsky.controller.TestController.test(TestController.java:15) error测试 |
debug.log文件：
| 1 2 3 | 2016-11-06 18:01:28 [ http-apr-9180-exec-10:0 ] - [ INFO ] info测试 2016-11-06 18:01:28 [ http-apr-9180-exec-10:7 ] - [ DEBUG ] debug测试 2016-11-06 18:01:28 [ http-apr-9180-exec-10:7 ] - [ ERROR ] error测试 |
error.log文件：
| 1 | 2016-11-06 18:01:28 [ http-apr-9180-exec-10:7 ] - [ ERROR ] error测试 |