log4j配置文件使其能够打印4个级别的日志到不同的文件中

配置文件

<?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="%c %d{ISO8601}

-- %p -- %m%n"/>

</layout>

</appender>

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

<param name="File" value="C:\\logs\\app-debug.log"/>

<param name="Append" value="true"/>

<param name="MaxFileSize" value="500KB"/>

<param name="MaxBackupIndex" value="2"/>

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

<param name="ConversionPattern" value="%c %d{ISO8601}

-- %p -- %m%n"/>

</layout>

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

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

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

</filter>

</appender>

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

<param name="File" value="C:\\logs\\app-info.log"/>

<param name="Append" value="true"/>

<param name="MaxFileSize" value="500KB"/>

<param name="MaxBackupIndex" value="2"/>

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

<param name="ConversionPattern" value="%c %d{ISO8601}

-- %p -- %m%n"/>

</layout>

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

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

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

</filter>

</appender>

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

<param name="File" value="C:\\logs\\app-warn.log"/>

<param name="Append" value="true"/>

<param name="MaxFileSize" value="500KB"/>

<param name="MaxBackupIndex" value="2"/>

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

<param name="ConversionPattern" value="%c %d{ISO8601}

-- %p -- %m%n"/>

</layout>

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

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

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

</filter>

</appender>

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

<param name="File" value="C:\\logs\\app-error.log"/>

<param name="Append" value="true"/>

<param name="MaxFileSize" value="500KB"/>

<param name="MaxBackupIndex" value="2"/>

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

<param name="ConversionPattern" value="%c %d{ISO8601}

-- %p -- %m%n"/>

</layout>

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

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

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

</filter>

</appender>

<root>

<priority value="debug"/>

<appender-ref ref="STDOUT"/>

<appender-ref ref="DEBUG"/>

<appender-ref ref="INFO"/>

<appender-ref ref="WARN"/>

<appender-ref ref="ERROR"/>

</root>

</log4j:configuration>