1、在工程中引入log4j-1.2.12.jar和commons-logging.jar.
commons-logging.jar的版本为1.0.3,低版本的配置稍有不同
2、在WEB-INF/classes目录下新建commons-logging.properties文件,文件内容如下:
commons-logging.jar的版本为1.0.3,低版本的配置稍有不同
2、在WEB-INF/classes目录下新建commons-logging.properties文件,文件内容如下:
org.apache.commons.logging.Log=org.apache.commons.logging.impl.Log4JLogger
此行将log实现指定为Log4j
3、在WEB-INF/classes目录下新建log4j.properties文件,简单的配置文件示例如下:
3、在WEB-INF/classes目录下新建log4j.properties文件,简单的配置文件示例如下:
<context-param>
<param-name>log4jConfigLocation</param-name>
<param-value>/WEB-INF/classes/log4j.properties</param-value>
</context-param>
<param-name>log4jConfigLocation</param-name>
<param-value>/WEB-INF/classes/log4j.properties</param-value>
</context-param>
<context-param>
<param-name>log4jRefreshInterval</param-name>
<param-value>60000</param-value>
</context-param>
<param-name>log4jRefreshInterval</param-name>
<param-value>60000</param-value>
</context-param>
注意一:在上述实现类中也可以选用Log4JCategoryLog,但是会出现一些异常:FAIL - Encountered exception java.lang.NoSuchMethodError: org.apache.log4j.Category.log(****)
原因:commons-logger.jar和你的log4j.jar版本不兼容。前者是对后者的一个封装,而hibernate中主要是使用前者。前者的功能就是:它封装了一些通常的日志类,比如log4j,java.util.logging.Logger 等,使用的log4j,但是由于版本不对,commons-logger中用了log4j中的那个类,在当前的log4j版本中已经不存在了,所以报错
解决方法:将class目录下commons-logging.properties
org.apache.commons.logging.Log=org.apache.commons.logging.impl.Log4JCategoryLog
更改为
org.apache.commons.logging.Log=org.apache.commons.logging.impl.Log4JLogger
org.apache.commons.logging.Log=org.apache.commons.logging.impl.Log4JCategoryLog
更改为
org.apache.commons.logging.Log=org.apache.commons.logging.impl.Log4JLogger
注意二:在配置过程中我log4j.properties放于WEB-INF目录下,并修改相应的log4jConfigLocation,结果没有成功,不过用上述的配置没有问题
注意三:在配置输出路径时由于粗心写成如下:
log4j.appender.file.File=D:/log.log
没有看到任何结果,后来发现路径写错拉,这点要注意啊,呵呵
log4j.appender.file.File=D:/log.log
网友例一:功能比较多
LOG4J的配置之简单使它遍及于越来越多的应用中了:Log4J配置文件实现了输出到控制台、文件、回滚文件、发送日志邮件、输出到数据库日志表、自定义标签等全套功能。择其一二使用就够用了,
log4j.rootLogger=DEBUG,CONSOLE,A1,
im
log4j.addivity.org.apache=
true
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# 应用于控制台
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log4j.appender.CONSOLE=
org.apache.log4j.ConsoleAppender
log4j.appender.Threshold=
DEBUG
log4j.appender.CONSOLE.Target=
System.out
log4j.appender.CONSOLE.layout=
org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=[framework] %d - %c -%-4r [%t]
%-5p %c %x - %m%n
#log4j.appender.CONSOLE.layout.ConversionPattern=[start]%d{DATE}[DATE]%n%p[PRIORITY]%n%x[NDC]%n%t[THREAD] n%c[CATEGORY]%n%m[MESSAGE]
%n%n
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#应用于文件
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log4j.appender.FILE=
org.apache.log4j.FileAppender
log4j.appender.FILE.File=
file.log
log4j.appender.FILE.Append=
false
log4j.appender.FILE.layout=
org.apache.log4j.PatternLayout
log4j.appender.FILE.layout.ConversionPattern=[framework] %d - %c -%-4r [%t]
%-5p %c %x - %m%n
# Use this layout for LogFactor 5
analysis
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# 应用于文件回滚
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log4j.appender.ROLLING_FILE=
org.apache.log4j.RollingFileAppender
log4j.appender.ROLLING_FILE.Threshold=
ERROR
log4j.appender.ROLLING_FILE.File=
rolling.log
log4j.appender.ROLLING_FILE.Append=
true
log4j.appender.ROLLING_FILE.MaxFileSize=
10KB
log4j.appender.ROLLING_FILE.MaxBackupIndex=1
log4j.appender.ROLLING_FILE.layout=
org.apache.log4j.PatternLayout
log4j.appender.ROLLING_FILE.layout.ConversionPattern=[framework] %d - %c -%-4r [%t]
%-5p %c %x - %m%n
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#应用于socket
log4j.appender.SOCKET=
org.apache.log4j.RollingFileAppender
log4j.appender.SOCKET.RemoteHost=
localhost
log4j.appender.SOCKET.Port=5001
log4j.appender.SOCKET.LocationInfo=
true
# Set up for Log Facter 5
log4j.appender.SOCKET.layout=
org.apache.log4j.PatternLayout
log4j.appender.SOCET.layout.ConversionPattern=[start]%d{DATE}[DATE]%n%p[PRIORITY]%n%x[NDC]%n%t[THREAD]%n%c[CATEGORY]%n%m[MESSAGE]
%n%n
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# Log Factor 5
Appender
log4j.appender.LF5_APPENDER=
org.apache.log4j.lf5.LF5Appender
log4j.appender.LF5_APPENDER.MaxNumberOfRecords=2000
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# 发送日志给邮件
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log4j.appender.MAIL=
org.apache.log4j.net.SMTPAppender
log4j.appender.MAIL.Threshold=
FATAL
log4j.appender.MAIL.BufferSize=10
log4j.appender.MAIL.From=
web@www.wuset.com
log4j.appender.MAIL.SMTPHost=
www.wusetu.com
log4j.appender.MAIL.Subject=
Log4J Message
log4j.appender.MAIL.To=
web@www.wusetu.com
log4j.appender.MAIL.layout=
org.apache.log4j.PatternLayout
log4j.appender.MAIL.layout.ConversionPattern=[framework] %d - %c -%-4r [%t]
%-5p %c %x - %m%n
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# 用于数据库
log4j.appender.DATABASE=
org.apache.log4j.jdbc.JDBCAppender
log4j.appender.DATABASE.URL=jdbc:mysql://localhost:3306
/test
log4j.appender.DATABASE.driver=
com.mysql.jdbc.Driver
log4j.appender.DATABASE.user=
root
log4j.appender.DATABASE.password=
log4j.appender.DATABASE.sql=INSERT INTO LOG4J (Message) VALUES ('[framework] %d - %c -%-4r [%t]
%-5p %c %x - %m%n')
log4j.appender.DATABASE.layout=
org.apache.log4j.PatternLayout
log4j.appender.DATABASE.layout.ConversionPattern=[framework] %d - %c -%-4r [%t]
%-5p %c %x - %m%n
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log4j.appender.A1=
org.apache.log4j.DailyRollingFileAppender
log4j.appender.A1.File=
SampleMessages.log4j
log4j.appender.A1.DatePattern=
yyyyMMdd-HH'.log4j'
log4j.appender.A1.layout=
org.apache.log4j.xml.XMLLayout
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#自定义Appender
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log4j.appender.im =
net.cybercorlin.util.logger.appender.IMAppender
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log4j.appender.im.host =
mail.cybercorlin.net
log4j.appender.im.username =
username
log4j.appender.im.password =
password
log4j.appender.im.recipient =
corlin@cybercorlin.net
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log4j.appender.im.layout=
org.apache.log4j.PatternLayout
log4j.appender.im.layout.ConversionPattern =[framework] %d - %c -%-4r [%t]
%-5p %c %x - %m%n
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网友例二:比较实用
#root输出源配置
log4j.rootLogger = DEBUG , rootlog
log4j.appender.rootlog = org.apache.log4j.RollingFileAppender
log4j.appender.rootlog.MaxFileSize = 50000KB
log4j.appender.rootlog.MaxBackupIndex = 0
log4j.appender.rootlog.file = D:/jakarta-tomcat- 4.1.30 /webapps/ROOT/logs/all.log
log4j.appender.rootlog.layout = org.apache.log4j.PatternLayout
log4j.appender.rootlog.layout.ConversionPattern = %d %-5p %m%n
#debug输出源配置
log4j.logger.debuglog = DEBUG , debuglog
log4j.appender.debuglog = org.apache.log4j.RollingFileAppender
log4j.appender.debuglog.MaxFileSize = 50000KB
log4j.appender.debuglog.MaxBackupIndex = 0
log4j.appender.debuglog.file = D:/jakarta-tomcat- 4.1.30 /webapps/ROOT/logs/debug.log
log4j.appender.debuglog.layout = org.apache.log4j.PatternLayout
log4j.appender.debuglog.layout.ConversionPattern = %m%n
#info输出源配置
log4j.logger.infolog = DEBUG , infolog
log4j.appender.infolog = org.apache.log4j.RollingFileAppender
log4j.appender.infolog.MaxFileSize = 50000KB
log4j.appender.infolog.MaxBackupIndex = 0
log4j.appender.infolog.file = D:/jakarta-tomcat- 4.1.30 /webapps/ROOT/logs/info.log
log4j.appender.infolog.layout = org.apache.log4j.PatternLayout
log4j.appender.infolog.layout.ConversionPattern = %m%n
#warn输出源配置
log4j.logger.warnlog = DEBUG , warnlog
log4j.appender.warnlog = org.apache.log4j.RollingFileAppender
log4j.appender.warnlog.MaxFileSize = 50000KB
log4j.appender.warnlog.MaxBackupIndex = 0
log4j.appender.warnlog.file = D:/jakarta-tomcat- 4.1.30 /webapps/ROOT/logs/warn.log
log4j.appender.warnlog.layout = org.apache.log4j.PatternLayout
log4j.appender.warnlog.layout.ConversionPattern = %d %X %-5p %m%n
#error输出源配置
log4j.logger.errorlog = DEBUG , errorlog
log4j.appender.errorlog = org.apache.log4j.RollingFileAppender
log4j.appender.errorlog.MaxFileSize = 50000KB
log4j.appender.errorlog.MaxBackupIndex = 0
log4j.appender.errorlog.file = D:/jakarta-tomcat- 4.1.30 /webapps/ROOT/logs/error.log
log4j.appender.errorlog.layout = org.apache.log4j.PatternLayout
log4j.appender.errorlog.layout.ConversionPattern = %d %x %-5p %m%n
log4j.rootLogger = DEBUG , rootlog
log4j.appender.rootlog = org.apache.log4j.RollingFileAppender
log4j.appender.rootlog.MaxFileSize = 50000KB
log4j.appender.rootlog.MaxBackupIndex = 0
log4j.appender.rootlog.file = D:/jakarta-tomcat- 4.1.30 /webapps/ROOT/logs/all.log
log4j.appender.rootlog.layout = org.apache.log4j.PatternLayout
log4j.appender.rootlog.layout.ConversionPattern = %d %-5p %m%n
#debug输出源配置
log4j.logger.debuglog = DEBUG , debuglog
log4j.appender.debuglog = org.apache.log4j.RollingFileAppender
log4j.appender.debuglog.MaxFileSize = 50000KB
log4j.appender.debuglog.MaxBackupIndex = 0
log4j.appender.debuglog.file = D:/jakarta-tomcat- 4.1.30 /webapps/ROOT/logs/debug.log
log4j.appender.debuglog.layout = org.apache.log4j.PatternLayout
log4j.appender.debuglog.layout.ConversionPattern = %m%n
#info输出源配置
log4j.logger.infolog = DEBUG , infolog
log4j.appender.infolog = org.apache.log4j.RollingFileAppender
log4j.appender.infolog.MaxFileSize = 50000KB
log4j.appender.infolog.MaxBackupIndex = 0
log4j.appender.infolog.file = D:/jakarta-tomcat- 4.1.30 /webapps/ROOT/logs/info.log
log4j.appender.infolog.layout = org.apache.log4j.PatternLayout
log4j.appender.infolog.layout.ConversionPattern = %m%n
#warn输出源配置
log4j.logger.warnlog = DEBUG , warnlog
log4j.appender.warnlog = org.apache.log4j.RollingFileAppender
log4j.appender.warnlog.MaxFileSize = 50000KB
log4j.appender.warnlog.MaxBackupIndex = 0
log4j.appender.warnlog.file = D:/jakarta-tomcat- 4.1.30 /webapps/ROOT/logs/warn.log
log4j.appender.warnlog.layout = org.apache.log4j.PatternLayout
log4j.appender.warnlog.layout.ConversionPattern = %d %X %-5p %m%n
#error输出源配置
log4j.logger.errorlog = DEBUG , errorlog
log4j.appender.errorlog = org.apache.log4j.RollingFileAppender
log4j.appender.errorlog.MaxFileSize = 50000KB
log4j.appender.errorlog.MaxBackupIndex = 0
log4j.appender.errorlog.file = D:/jakarta-tomcat- 4.1.30 /webapps/ROOT/logs/error.log
log4j.appender.errorlog.layout = org.apache.log4j.PatternLayout
log4j.appender.errorlog.layout.ConversionPattern = %d %x %-5p %m%n
网友例二:其余的
在spring+hibernate+struts项目开发中的log4j配置
关键词: log4j.rootLogge
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web.xml中的修改:
这样配置文件以及日志文件可以在spring的帮助下,放到开发环境中的任意位置
在这里定位配置文件,需要的是从root开始的绝对路径
,或者设置个
<
context-param
>
<
param-name
>
log4jConfigLocation
</
param-name
>
<
param-value
>
classpath:log4j.properties
</
param-value
>
</
context-param
>
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<!--
Spring默认刷新Log4j配置文件的间隔,单位为millisecond
-->
<
context-param
>
<
param-name
>
log4jRefreshInterval
</
param-name
>
<
param-value
>
60000
</
param-value
>
</
context-param
>
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<!--
Spring log4j Config loader
-->
<
listener
>
<
listener-class
>
org.springframework.web.util.Log4jConfigListener
</
listener-class
>
</
listener
>
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设置监听器
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==================================
什么都做完了,那该测试了,
在action中增加
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补充:
有时候log日志的位置总觉的绝对路径不爽,那你可以用参数啊,比如${webapp.root}/WEB-INF/log/就是你的项目路径里的了,具体在哪里你自己看了