log4j分级别输出到不同文件
log4j.rootLogger=DEBUG,console,fileout,fileout2
log4j.appender.console=org.apache.log4j.ConsoleAppender
log4j.appender.console.Target=System.out
log4j.appender.console.layout=org.apache.log4j.PatternLayout
log4j.appender.console.layout.ConversionPattern=[%-5p] %d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %l: %m%n
log4j.appender.console.Encoding=UTF-8
log4j.appender.console.threshold=DEBUG
log4j.appender.fileout.Threshold = INFO
log4j.appender.fileout=org.apache.log4j.DailyRollingFileAppender
log4j.appender.fileout.File=./logs/FakeFront.log
log4j.appender.fileout.DatePattern='.'yyyy-MM-dd'.log'
log4j.appender.fileout.layout=org.apache.log4j.PatternLayout
log4j.appender.fileout.layout.ConversionPattern=[%-5p] %d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %l: %m%n
log4j.appender.fileout.Encoding=UTF-8
log4j.appender.fileout2.Threshold = DEBUG
log4j.appender.fileout2=org.apache.log4j.DailyRollingFileAppender
log4j.appender.fileout2.File=./logs/FakeFront2222.log
log4j.appender.fileout2.DatePattern='.'yyyy-MM-dd'22.log'
log4j.appender.fileout2.layout=org.apache.log4j.PatternLayout
log4j.appender.fileout2.layout.ConversionPattern=[%-5p] %d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %l: %m%n
log4j.appender.fileout2.Encoding=UTF-8
log4j.logger.org.apache.mina.filter.logging.LoggingFilter=ERROR
log4j.logger.com.ykk.socket.MinaClient=ERROR
log4j.logger.com.ykk.socket.ClientHandler=ERROR
log4j.logger.com.ykk.trade.service.service.FactorService=ERROR
log4j.logger.com.ykk.common.http.YkkWebAPIInterceptor=ERROR
注意：log4j.rootLogger 的值应该是多个appender 中级别最低的一个的值
log4j已经是古董了,但是现在项目还在用,需要用到不同级别输出到不同文件,所以把几种实现方式记录下来,备忘! 下面的几种配置都是使用properties的情况,但是xml的原理也一样.
使用LevelRangeFilter
使用LevelMatchFilter
自定义Appender最后再贴出下面一种需求的配置文件项目info和error级别日志分开记录为 allInfo,allError文件其中A模块的日志单独记录为afile其中A模块的info级别日志只在afile记录,不在allinfo记录(info只记录一次)其中A模块的error级别日志在afile,allError中都记录下面详细说明:
使用LevelRangeFilter
这个应该是3种里面最方便的,配置如下
log4j.appender.InfoFile = org.apache.log4j.RollingFileAppender
log4j.appender.InfoFile.File = logs/info1.log
log4j.appender.InfoFile.MaxFileSize = 10MB
log4j.appender.InfoFile.Threshold = INFO
log4j.appender.InfoFile.layout = org.apache.log4j.PatternLayout
log4j.appender.InfoFile.layout.ConversionPattern =[%p] [%d{yyyy-MM-dd HH\:mm\:ss}][%c]%m%n
log4j.appender.InfoFile.filter.F1=org.apache.log4j.varia.LevelRangeFilter
log4j.appender.InfoFile.filter.F1.LevelMin=INFO
log4j.appender.InfoFile.filter.F1.LevelMax=INFO
使用LevelMatchFilter
这个配置就稍微多点了,例如,我们输出INFO级别的,需要下面配置
log4j.appender.InfoFile2 = org.apache.log4j.RollingFileAppender
log4j.appender.InfoFile2.File = logs/info2.log
log4j.appender.InfoFile2.MaxFileSize = 10MB
log4j.appender.InfoFile2.Threshold = INFO
log4j.appender.InfoFile2.layout = org.apache.log4j.PatternLayout
log4j.appender.InfoFile2.layout.ConversionPattern =[%p] [%d{yyyy-MM-dd HH\:mm\:ss}][%c]%m%n
log4j.appender.InfoFile2.filter.F1=org.apache.log4j.varia.LevelMatchFilter
log4j.appender.InfoFile2.filter.F1.levelToMatch=INFO
log4j.appender.InfoFile2.filter.F1.AcceptOnMatch=true
log4j.appender.InfoFile2.filter.F2=org.apache.log4j.varia.LevelMatchFilter
log4j.appender.InfoFile2.filter.F2.levelToMatch=ERROR
log4j.appender.InfoFile2.filter.F2.AcceptOnMatch=false
log4j.appender.InfoFile2.filter.F3=org.apache.log4j.varia.LevelMatchFilter
log4j.appender.InfoFile2.filter.F3.levelToMatch=WARN
log4j.appender.InfoFile2.filter.F3.AcceptOnMatch=false
log4j.appender.InfoFile2.filter.F4=org.apache.log4j.varia.LevelMatchFilter
log4j.appender.InfoFile2.filter.F4.levelToMatch=DEBUG
log4j.appender.InfoFile2.filter.F4.AcceptOnMatch=false
自定义Appender
一种常见的配置文件如下
log4j.rootLogger=INFO,InfoFile3,errorFile3
log4j.appender.InfoFile3 = org.apache.log4j.RollingFileAppender
log4j.appender.InfoFile3.File = logs/info3.log
log4j.appender.InfoFile3.MaxFileSize = 10MB
log4j.appender.InfoFile3.Threshold = INFO
log4j.appender.InfoFile3.layout = org.apache.log4j.PatternLayout
log4j.appender.InfoFile3.layout.ConversionPattern =[%p] [%d{yyyy-MM-dd HH\:mm\:ss}][%c]%m%n
log4j.appender.errorFile3 = org.apache.log4j.RollingFileAppender
log4j.appender.errorFile3.File = logs/error3.log
log4j.appender.errorFile3.MaxFileSize = 10MB
log4j.appender.errorFile3.Threshold = ERROR
log4j.appender.errorFile3.layout = org.apache.log4j.PatternLayout
log4j.appender.errorFile3.layout.ConversionPattern =[%p] [%d{yyyy-MM-dd HH\:mm\:ss}][%c]%m%n
package com.dingcheng.log;
import org.apache.log4j.Priority;
import org.apache.log4j.RollingFileAppender;
public class MyRollingFileAppender extends RollingFileAppender {
@Override
public boolean isAsSevereAsThreshold(Priority priority) {
return this.getThreshold().equals(priority);
}
}
log4j.rootLogger=INFO,InfoFile3,errorFile3
log4j.appender.InfoFile3 = com.dingcheng.log.MyRollingFileAppender
log4j.appender.InfoFile3.File = logs/info3.log
log4j.appender.InfoFile3.MaxFileSize = 10MB
log4j.appender.InfoFile3.Threshold = INFO
log4j.appender.InfoFile3.layout = org.apache.log4j.PatternLayout
log4j.appender.InfoFile3.layout.ConversionPattern =[%p] [%d{yyyy-MM-dd HH\:mm\:ss}][%c]%m%n
log4j.appender.errorFile3 = com.dingcheng.log.MyRollingFileAppender
log4j.appender.errorFile3.File = logs/error3.log
log4j.appender.errorFile3.MaxFileSize = 10MB
log4j.appender.errorFile3.Threshold = ERROR
log4j.appender.errorFile3.layout = org.apache.log4j.PatternLayout
log4j.appender.errorFile3.layout.ConversionPattern =[%p] [%d{yyyy-MM-dd HH\:mm\:ss}][%c]%m%n
当然除了上面的3种方法,还有自定义一个类,里面不同级别指向不同的文件
public class LogUtil{
public static void error(String msg) {
Logger.getLogger("error").error(msg);
}
}
最后再贴出下面一种需求的配置文件
- 项目info和error级别日志分开记录为 allInfo,allError文件
- 其中A模块的日志单独记录为afile
- 其中A模块的info级别日志只在afile记录,不在allinfo记录(info只记录一次)
- 其中A模块的error级别日志在afile,allError中都记录
#根设置,输出级别为info级别, 输出文件为 allInfo,allError
log4j.rootLogger=INFO,allInfo,allError
#定义allInfo的详细配置,只记录info级别
log4j.appender.allInfo = org.apache.log4j.RollingFileAppender
log4j.appender.allInfo.File = /logs/allInfo.log
log4j.appender.allInfo.MaxFileSize = 50MB
log4j.appender.allInfo.Threshold = INFO
log4j.appender.allInfo.layout = org.apache.log4j.PatternLayout
log4j.appender.allInfo.layout.ConversionPattern =[%p] %-d{yyyy-MM-dd HH:mm:ss} [%t] [%l]--> %m %x %n
log4j.appender.allInfo.filter.F1=org.apache.log4j.varia.LevelRangeFilter
log4j.appender.allInfo.filter.F1.LevelMin=INFO
log4j.appender.allInfo.filter.F1.LevelMax=INFO
#定义allError的详细配置,只记录error级别
log4j.appender.allError = org.apache.log4j.RollingFileAppender
log4j.appender.allError.File = /data/wuliu-provider/logs/order-error.log
log4j.appender.allError.MaxFileSize = 50MB
log4j.appender.allError.Threshold = ERROR
log4j.appender.allError.layout = org.apache.log4j.PatternLayout
log4j.appender.allError.layout.ConversionPattern=[%p] %-d{yyyy-MM-dd HH:mm:ss} [%t] [%l]--> %m %x %n
#A模块单独配置,输出级别为INFO,输出文件为 afile,allError ; additivity=false指定不继承根设置
log4j.logger.AMODULE=INFO,afile,allError
log4j.additivity.AMODULE = false
log4j.appender.afile = org.apache.log4j.RollingFileAppender
log4j.appender.afile.File = /data/wuliu-provider/logs/YuanCheng.log
log4j.appender.afile.MaxFileSize = 50MB
log4j.appender.afile.Threshold = INFO
log4j.appender.afile.layout = org.apache.log4j.PatternLayout
log4j.appender.afile.layout.ConversionPattern =[%p] %d{yyyy-MM-dd HH\:mm\:ss} [%c]%m%n
private static Logger logger = Logger.getLogger("AMODULE");//指定配置文件中的名称