springmvc log4j配置

1. web.xml

1<!-- 加载Log4J 配置文件  -->  
2<context-param>  
3    <param-name>log4jConfigLocation</param-name>  
4    <param-value>WEB-INF/conf/log4j.properties</param-value>  
5</context-param>     
6  
7<context-param>  
8    <param-name>log4jRefreshInterval</param-name>  
9      <param-value>3000</param-value>  
10 </context-param>  
11  
12<listener>  
13    <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>  
14 </listener>
15
16log4jConfigLocation 配置log4j.properties 文件的位置。也可以这样配置 classpath:log4j.properties

2. 日志文件的位置

1）绝对路径

log4j.appender.R.File=D:/log/xxx.log

2）相对路径：

log4j.appender.R.File=../logs/app.log，将日志记录到tomcat下的logs文件夹；

log4j.appender.R.File=logs/app.log，将日志记录到tomcat的bin目录下的logs文件夹；

（3）使用环境变量相对路径法：程序会优先找jvm环境变量，然后再找系统环境变量，来查找配置文件中的变量。

        log4j.appender.logfile.File=${user.dir}/logs/app.log，使用tomcat容器时${user.dir}对应tomcat的bin目录；

        log4j.appender.logfile.File=${user.home}/logs/app.log，${user.home}对应操作系统当前用户目录；

        log4j.appender.logfile.File=${webApp.root}/logs/app.log，${webApp.root}对应当前应用根目录；

3. 不同框架的日志分开存储：

1#all logger output level is 'ERROR' and output position is stdout
2#so only write our project's DEBUG log and ERROR log of the others
3log4j.rootLogger=ERROR, stdout, R
4#log4j.appender is set output postion
5#log4j.logger is set some package(some package your want output logger specially)=[output level],[...output position]
6
7log4j.logger.org.springframework=OFF  
8log4j.logger.org.apache.commons=OFF 
9log4j.logger.org.apache.struts=OFF   
10log4j.logger.org.hibernate=OFF
11
12#log4j.logger.org.logicalcobwebs=OFF
13
14#only write our project's log(DEBUG)
15log4j.logger.com.mycompany=DEBUG
16
17log4j.logger.org.apache.commons.dbcp=DEBUG, dbcp
18#log4j.logger.org.logicalcobwebs.proxool=DEBUG, proxool
19
20#log4j.logger.org.springframework=DEBUG, spring
21
22log4j.logger.org.apache.catalina.core=DEBUG, catalina
23
24#in the console
25log4j.appender.stdout=org.apache.log4j.ConsoleAppender
26#config stdout position output contain INFO level and up
27log4j.appender.stdout.Threshold=DEBUG
28log4j.appender.stdout.layout=org.apache.log4j.PatternLayout 
29log4j.appender.stdout.layout.ConversionPattern=[%-5p] %l:%t - %m %n
30
31#in the daily files
32log4j.appender.R=org.apache.log4j.DailyRollingFileAppender
33log4j.appender.R.Threshold=DEBUG
34log4j.appender.R.File=D:/EMR/log/EMR.log
35log4j.appender.R.DatePattern='.'yyyy-MM-dd'.log'
36log4j.appender.R.layout=org.apache.log4j.PatternLayout 
37log4j.appender.R.layout.ConversionPattern=%d [%-5p] %l:%t - %m %n
38
39log4j.logger.com.statestr=DEBUG
40
41log4j.appender.dbcp=org.apache.log4j.DailyRollingFileAppender
42log4j.appender.dbcp.Threshold=DEBUG
43log4j.appender.dbcp.File=D:/EMR/log/dbcp.log
44log4j.appender.dbcp.DatePattern='.'yyyy-MM-dd'.log'
45log4j.appender.dbcp.layout=org.apache.log4j.PatternLayout 
46log4j.appender.dbcp.layout.ConversionPattern=%d [%-5p] %l:%t - %m %n
47
48log4j.appender.proxool=org.apache.log4j.DailyRollingFileAppender
49log4j.appender.proxool.Threshold=DEBUG
50log4j.appender.proxool.File=D:/EMR/log/proxool.log
51log4j.appender.proxool.DatePattern='.'yyyy-MM-dd'.log'
52log4j.appender.proxool.layout=org.apache.log4j.PatternLayout 
53log4j.appender.proxool.layout.ConversionPattern=%d [%-5p] %l:%t - %m %n
54
55log4j.appender.spring=org.apache.log4j.DailyRollingFileAppender
56log4j.appender.spring.Threshold=DEBUG
57log4j.appender.spring.File=D:/EMR/log/spring.log
58log4j.appender.spring.DatePattern='.'yyyy-MM-dd'.log'
59log4j.appender.spring.layout=org.apache.log4j.PatternLayout 
60log4j.appender.spring.layout.ConversionPattern=%d [%-5p] %l:%t - %m %n
61
62log4j.appender.catalina=org.apache.log4j.DailyRollingFileAppender
63log4j.appender.catalina.Threshold=DEBUG
64log4j.appender.catalina.File=D:/EMR/log/catalina.log
65log4j.appender.catalina.DatePattern='.'yyyy-MM-dd'.log'
66log4j.appender.catalina.layout=org.apache.log4j.PatternLayout 
67log4j.appender.catalina.layout.ConversionPattern=%d [%-5p] %l:%t - %m %n

4. 关闭日志

1log4j.logger.org.springframework=OFF  
2log4j.logger.org.apache.commons=OFF 
3log4j.logger.org.apache.struts=OFF   
4log4j.logger.org.hibernate=OFF或者
5
6log4j.logger.org.springframework=WARN  
7log4j.logger.org.apache.commons=WARN 
8log4j.logger.org.apache.struts=WARN 
9log4j.logger.org.hibernate=WARN