log4j.xml配置 分级打印日志和打印到指定文件中

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">

<log4j:configuration xmlns:log4j='http://jakarta.apache.org/log4j/'>
	<!-- appender 部分是可用的日志输出方式定义，可以定义多个 -->
	<appender name="STDOUT" class="org.apache.log4j.ConsoleAppender">
		<layout class="org.apache.log4j.PatternLayout">
			<param name="ConversionPattern" value="%l %d{ISO8601}
			-- %p -- %m%n"/>
		</layout>
	</appender>

	<appender name="DEBUG" class="org.apache.log4j.RollingFileAppender">
		<param name="File" value="${catalina.base}/logs/debug.log"/>
		<param name="Append" value="true"/>
		<param name="MaxFileSize" value="10000KB"/>
		<param name="MaxBackupIndex" value="50"/>
		<layout class="org.apache.log4j.PatternLayout">
			<param name="ConversionPattern" value="%l %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="${catalina.base}/logs/info.log"/>
	<param name="Append" value="true"/>
	<param name="MaxFileSize" value="10000KB"/>
	<param name="MaxBackupIndex" value="50"/>
	<layout class="org.apache.log4j.PatternLayout">
	<param name="ConversionPattern" value="%l %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="${catalina.base}/logs/warn.log"/>
	<param name="Append" value="true"/>
	<param name="MaxFileSize" value="10000KB"/>
	<param name="MaxBackupIndex" value="50"/>
	<layout class="org.apache.log4j.PatternLayout">
	<param name="ConversionPattern" value="%l %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="${catalina.base}/logs/error.log"/>
	<param name="Append" value="true"/>
	<param name="MaxFileSize" value="10000KB"/>
	<param name="MaxBackupIndex" value="50"/>
	<layout class="org.apache.log4j.PatternLayout">
	<param name="ConversionPattern" value="%l %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>
	
	
	<appender name="WATCHTASK" class="org.apache.log4j.RollingFileAppender">
	<param name="File" value="${catalina.base}/logs/watchtask.log"/>
	<param name="Append" value="true"/>
	<param name="MaxFileSize" value="10000KB"/>
	<param name="MaxBackupIndex" value="50"/>
	<layout class="org.apache.log4j.PatternLayout">
	<param name="ConversionPattern" value="%l %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>

	

	<!--  category 部分定义了特定包或者类的输出级别和方式，可以有多个 -->
	<category name="org.apache">
	   <priority value="warn"/>
	   <appender-ref ref="WARN"/>
	</category>
	

    <!--  打印日志到固定的文件中WATCHTASK 选择自定义的日志级别设置 -->
    <category name="com.test.task.WatchTimerTask">
	   <priority value="info"/>
	   <appender-ref ref="WATCHTASK"/>
	</category>
    
	<!--  root部分定义了log4j的默认输出级别和方式 -->
	<root>
		<priority value="warn"/>
		<appender-ref ref="INFO"/>
		<appender-ref ref="WARN"/>
		<appender-ref ref="ERROR"/>
		<appender-ref ref="STDOUT"/>
		
	</root>

</log4j:configuration>