log4j不同级别日志分不同文件记录

最近被问到一个log4j分不同文件记录不同级别日志的问题，一下给难倒了，以前没有留意过log4j的具体功能，只是了解了下。如今自己还差的远啊。╮(╯▽╰)╭。。。

参考了前段时间的那个项目中的log4j配置文件，发现那个只不过将不同模组的日志记录到不同的日志文件。并未按日志级别分文件记录。自己在动手调试的过程中结合查阅网上很多博文，终于以xml格式配置的方式调通。具体配置如下：

Xml代码

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">

<log4j:configuration xmlns:log4j='http://jakarta.apache.org/log4j/'>

<appender name="stdout" class="org.apache.log4j.ConsoleAppender">

<layout class="org.apache.log4j.PatternLayout">

<param name="ConversionPattern"

value="%d{yyyy/MM/dd HH:mm:ss.sss} [%-5p] %c - %m%n"/>

</layout>

</appender>

<appender name="traceLog4Debug" class="org.apache.log4j.RollingFileAppender">

<param name="File" value="C:/traceLog4Debug.log"/>

<param name="maxFileSize" value="2000KB"/>

<param name="maxBackupIndex" value="20"/>

<layout class="org.apache.log4j.PatternLayout">

<param name="ConversionPattern"

value="%d{yyyy/MM/dd HH:mm:ss.sss} [%-5p] %c - %m%n"/>

</layout>

</appender>

<appender name="debugLog" class="org.apache.log4j.RollingFileAppender">

<param name="File" value="C:/debug.log"/>

<param name="maxFileSize" value="2000KB"/>

<param name="maxBackupIndex" value="10"/>

<layout class="org.apache.log4j.PatternLayout">

<param name="ConversionPattern"

value="%d{yyyy/MM/dd HH:mm:ss.sss} [%-5p] %c - %m%n"/>

</layout>

<!-- filter作用？  配置LevelMax与LevelMin限定输出到文件的日志级别 -->

<filter class="org.apache.log4j.varia.LevelRangeFilter">

<param name="LevelMax" value="DEBUG" />

<param name="LevelMin" value="DEBUG" />

</filter>

</appender>

<appender name="infoLog" class="org.apache.log4j.RollingFileAppender">

<param name="File" value="C:/info.log"/>

<param name="maxFileSize" value="2000KB"/>

<param name="maxBackupIndex" value="10"/>

<layout class="org.apache.log4j.PatternLayout">

<param name="ConversionPattern"

value="%d{yyyy/MM/dd HH:mm:ss.sss} [%-5p] %c - %m%n"/>

</layout>

<filter class="org.apache.log4j.varia.LevelRangeFilter">

<param name="LevelMax" value="INFO" />

<param name="LevelMin" value="INFO" />

</filter>

</appender>

<appender name="warnLog" class="org.apache.log4j.RollingFileAppender">

<param name="File" value="C:/warn.log"/>

<param name="maxFileSize" value="2000KB"/>

<param name="maxBackupIndex" value="10"/>

<layout class="org.apache.log4j.PatternLayout">

<param name="ConversionPattern"

value="%d{yyyy/MM/dd HH:mm:ss.sss} [%-5p] %c - %m%n"/>

</layout>

<filter class="org.apache.log4j.varia.LevelRangeFilter">

<param name="LevelMax" value="WARN" />

<param name="LevelMin" value="WARN" />

</filter>

</appender>

<appender name="errorLog" class="org.apache.log4j.RollingFileAppender">

<param name="File" value="C:/error.log"/>

<param name="maxFileSize" value="2000KB"/>

<param name="maxBackupIndex" value="10"/>

<layout class="org.apache.log4j.PatternLayout">

<param name="ConversionPattern"

value="%d{yyyy/MM/dd HH:mm:ss.sss} [%-5p] %c - %m%n"/>

</layout>

<filter class="org.apache.log4j.varia.LevelRangeFilter">

<param name="LevelMax" value="ERROR" />

<param name="LevelMin" value="ERROR" />

</filter>

</appender>

<!-- 记录该包下所有日志 ,不同page记录方式不同-->

<logger name="com.javaeye.paopaohou">

<level value="ALL"/>

<appender-ref ref="stdout"/>

<appender-ref ref="traceLog4Debug"/>

<appender-ref ref="debugLog"/>

<appender-ref ref="infoLog"/>

<appender-ref ref="warnLog"/>

<appender-ref ref="errorLog"/>

</logger>

<logger name="org.hibernate.SQL">

<level value="DEBUG"/>

<appender-ref ref="traceLog4Debug"/>

<appender-ref ref="stdout"/>

</logger>

<logger name="org.hibernate">

<level value="error"/>

<appender-ref ref="traceLog4Debug"/>

<appender-ref ref="stdout"/>

</logger>

<logger name="org.springframework">

<level value="error"/>

<appender-ref ref="traceLog4Debug"/>

<appender-ref ref="stdout"/>

</logger>
</log4j:configuration>

只不过是在配置appender的时候配置了一个LevelRangeFilter的filter，并配置LevelMax与LevelMin(最大最小级别)，加个测试类：

Java代码 :

package com.javaeye.paopaohou;

import org.apache.log4j.Logger;

public class TestLog4j {

private static final Logger log = Logger.getLogger(TestLog4j.class);
/**
* 测试log4j不同级别日志分文件记录
*
*/

public static void main(String[] args) {
log.debug("debug...");
log.info("info...");
log.warn("warn...");
log.error("error...");

}

}

用log4j.properties配置时，记录还是有问题，

log4j.rootLogger=INFO,console,info,warn,error,fatal

log4j.appender.console=org.apache.log4j.ConsoleAppender
log4j.appender.console.layout=org.apache.log4j.PatternLayout
log4j.appender.console.Encoding=GBK
log4j.appender.console.layout.ConversionPattern=[%p] [%d{yyyy-MM-dd HH:mm:ss}] [ Class = %C | Method = %M | Line = %L ] | %m |%n

log4j.logger.info=info
log4j.appender.info=org.apache.log4j.DailyRollingFileAppender
log4j.appender.info.layout=org.apache.log4j.PatternLayout
log4j.appender.info.layout.ConversionPattern=[%p] [%d{yyyy-MM-dd HH:mm:ss}] [ Class = %C | Method = %M | Line = %L ] | %m |%n
log4j.appender.info.datePattern='.'yyyy-MM-dd
log4j.appender.info.Threshold=INFO
log4j.appender.info.append=true
log4j.appender.info.Encoding=GBK
log4j.appender.info.File=D:/log/bpsoft_info.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=[%p] [%d{yyyy-MM-dd HH:mm:ss}] [ Class = %C | Method = %M | Line = %L ] | %m |%n
#log4j.appender.debug.datePattern='.'yyyy-MM-dd
#log4j.appender.debug.Threshold=DEBUG
#log4j.appender.debug.append=true
#log4j.appender.debug.Encoding=GBK
#log4j.appender.debug.File=D:/log/bpsoft_debug.log

log4j.logger.warn=warn
log4j.appender.warn=org.apache.log4j.DailyRollingFileAppender
log4j.appender.warn.layout=org.apache.log4j.PatternLayout
log4j.appender.warn.layout.ConversionPattern=[%p] [%d{yyyy-MM-dd HH:mm:ss}] [ Class = %C | Method = %M | Line = %L ] | %m |%n
log4j.appender.warn.datePattern='.'yyyy-MM-dd
log4j.appender.warn.Threshold=WARN
log4j.appender.warn.append=true
log4j.appender.warn.Encoding=GBK
log4j.appender.warn.File=D\:/log/bpsoft_warn.log

log4j.logger.error=error
log4j.appender.error=org.apache.log4j.DailyRollingFileAppender
log4j.appender.error.layout=org.apache.log4j.PatternLayout
log4j.appender.error.layout.ConversionPattern=[%p] [%d{yyyy-MM-dd HH:mm:ss}] [ Class = %C | Method = %M | Line = %L ] | %m |%n
log4j.appender.error.datePattern='.'yyyy-MM-dd
log4j.appender.error.Threshold=ERROR
log4j.appender.error.append=true
log4j.appender.error.Encoding=GBK
log4j.appender.error.File=D\:/log/bpsoft_error.log

log4j.logger.fatal=fatal
log4j.appender.fatal=org.apache.log4j.DailyRollingFileAppender
log4j.appender.fatal.layout=org.apache.log4j.PatternLayout
log4j.appender.fatal.layout.ConversionPattern=[%p] [%d{yyyy-MM-dd HH\:mm\:ss}] [ Class \= %C | Method \= %M | Line \= %L ] | %m |%n
log4j.appender.fatal.datePattern='.'yyyy-MM-dd
log4j.appender.fatal.Threshold=FATAL
log4j.appender.fatal.append=true
log4j.appender.fatal.Encoding=GBK
log4j.appender.fatal.File=D:/log/bpsoft_fatal.log

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