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log4j配置文件介绍(二)

 
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通过扩展FileAppender类的方式,定制属于自己的相对路径起始位置:

1.扩展属于自己的FileAppender类,并重载setFile方法

 

public class RelativePathDailyRollingFileAppender extends DailyRollingFileAppender{

	/**
	 * 获取eclipse的运行时工作空间根路径
	 */
	public static String RELATIVE_PATH = Platform.getLocation().toString() + "/";
	
	@Override
	public void setFile(String file) {
		super.setFile(RELATIVE_PATH+file);
	}

}
 

 

2.改变log4j中的配置项,把Appender实现类换成我们自己的实现类

 

#log4j.appender.info=org.apache.log4j.DailyRollingFileAppender

log4j.appender.info=cn.com.agree.abop.ide.logging.appender.RelativePathDailyRollingFileAppender

 

 

 

通过修改log4j配置文件,使生成的日志根据日志级别保存在多个文件中

 

# 按照级别把日志输出到不同的文件
log4j.rootLogger=info,stdout,info,debug,error
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=[%-5p] [%d{HH:mm:ss}] %c - %m%n

log4j.logger.info=info
#log4j.appender.info=org.apache.log4j.DailyRollingFileAppender
log4j.appender.info=cn.com.agree.abop.ide.logging.appender.RelativePathDailyRollingFileAppender
log4j.appender.info.layout=org.apache.log4j.PatternLayout
log4j.appender.info.layout.ConversionPattern=[%-5p] [%d{HH:mm:ss}] %c - %m%n
log4j.appender.info.datePattern='.'yyyy-MM-dd
log4j.appender.info.Threshold = INFO 
log4j.appender.info.append=true
log4j.appender.info.File=.metadata/info.log

log4j.logger.error=error
log4j.appender.error=cn.com.agree.abop.ide.logging.appender.RelativePathDailyRollingFileAppender
#log4j.appender.error=org.apache.log4j.DailyRollingFileAppender
log4j.appender.error.layout=org.apache.log4j.PatternLayout
log4j.appender.error.layout.ConversionPattern=[%-5p] [%d{HH:mm:ss}] %c - %m%n
log4j.appender.error.datePattern='.'yyyy-MM-dd
log4j.appender.error.Threshold = ERROR 
log4j.appender.error.append=true
log4j.appender.error.File=.metadata/error.log



如下是我使用的log4j配置文件的全文:

log4j.rootLogger=WARN,CONSOLE,DATABASE,FILE
log4j.addivity.org.apache=true

# 输出到控制台
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.Threshold=INFO
log4j.appender.CONSOLE.Target=System.out
log4j.appender.CONSOLE.Encoding=GBK
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=[framework] %d - %c -%-4r [%t] %-5p %c %x - %m%n

# 按照级别把日志输出到不同的文件
log4j.rootLogger=info,stdout,info,debug,error
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=[%-5p] [%d{HH:mm:ss}] %c - %m%n

log4j.logger.info=info
#log4j.appender.info=org.apache.log4j.DailyRollingFileAppender
log4j.appender.info=cn.com.agree.abop.ide.logging.appender.RelativePathDailyRollingFileAppender
log4j.appender.info.layout=org.apache.log4j.PatternLayout
log4j.appender.info.layout.ConversionPattern=[%-5p] [%d{HH:mm:ss}] %c - %m%n
log4j.appender.info.datePattern='.'yyyy-MM-dd
log4j.appender.info.Threshold = INFO 
log4j.appender.info.append=true
log4j.appender.info.File=.metadata/info.log

log4j.logger.error=error
log4j.appender.error=cn.com.agree.abop.ide.logging.appender.RelativePathDailyRollingFileAppender
#log4j.appender.error=org.apache.log4j.DailyRollingFileAppender
log4j.appender.error.layout=org.apache.log4j.PatternLayout
log4j.appender.error.layout.ConversionPattern=[%-5p] [%d{HH:mm:ss}] %c - %m%n
log4j.appender.error.datePattern='.'yyyy-MM-dd
log4j.appender.error.Threshold = ERROR 
log4j.appender.error.append=true
log4j.appender.error.File=.metadata/error.log

#log4j.logger.debug=debug
#log4j.appender.debug=org.apache.log4j.DailyRollingFileAppender
#log4j.appender.debug.layout=org.apache.log4j.PatternLayout
#log4j.appender.debug.layout.ConversionPattern=[%-5p] [%d{HH:mm:ss}] %c - %m%n
#log4j.appender.debug.datePattern='.'yyyy-MM-dd
#log4j.appender.debug.Threshold = DEBUG 
#log4j.appender.debug.append=true
#log4j.appender.debug.File=.metadata/debug.log
 
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