（1）引入log4j的jar包：
官网下载地址：http://logging.apache.org/log4j/1.2/download.html
（2）在web.xml中添加log4j配置：
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<
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
>
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（3）log4j属性文件log4j.properties：
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#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
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注：我这里的配置文件并不是很好，仅供参考
（4）测试：
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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"
);
}
}
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控制台输出如下：
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[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
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debug.log文件：
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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
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error.log文件：
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2016-11-06 18:01:28 [ http-apr-9180-exec-10:7 ] - [ ERROR ] error测试
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本文转自 pangfc 51CTO博客，原文链接：http://blog.51cto.com/983836259/1877595，如需转载请自行联系原作者
