log4j 最佳配置优化

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration PUBLIC "-//APACHE//DTD LOG4J 1.2//EN" "log4j.dtd"> 
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/" debug="false">       
    <!-- 业务日志，生产环境使用。 -->  
    <appender name="APPMGR_LOG" class="org.apache.log4j.DailyRollingFileAppender">  
        <param name="File" value="log/appmgr.log" />  
        <param name="Append" value="true" />  
        <param name="DatePattern" value="'_'yyyy-MM-dd-HH'.log'" />  
        <layout class="org.apache.log4j.PatternLayout">  
            <param name="ConversionPattern" value="[%p][%d{yyyy-MM-dd HH\:mm\:ss,SSS}][%t][%c]%m%n" />  
        </layout>  
    </appender>  

    <!-- JOP框架底层日志，分析框架问题时使用。 -->  
	<!--
    <appender name="JOP_LOG" class="org.apache.log4j.DailyRollingFileAppender">  
        <param name="File" value="log/jop.log" />  
        <param name="Append" value="true" />  
        <param name="DatePattern" value="'.'yyyy-MM-dd-HH" />  
        <layout class="org.apache.log4j.PatternLayout">  
            <param name="ConversionPattern" value="%d %t (%F,%L) - %m%n" />  
        </layout>  
    </appender>  
	-->
    <!-- 控制台日志，开发阶段使用-->  
    <appender name="CONSOLE" class="org.apache.log4j.ConsoleAppender">  
        <param name="Target" value="System.out" />  
        <param name="Threshold" value="DEBUG"/>          
        <layout class="org.apache.log4j.PatternLayout">  
            <param name="ConversionPattern" value="[%p][%d{yyyy-MM-dd HH\:mm\:ss,SSS}][%t][%c]%m%n" />  
        </layout>  
    </appender>  

    <!-- 默认的异步文件日志输出，生产环境都采用此appender -->  
    <appender name="ASYNC_APPMGR_LOG" class="org.apache.log4j.AsyncAppender">          
     <param name="BufferSize" value="256"/>       
     <param name="LocationInfo" value="true"/>     
     <appender-ref ref="APPMGR_LOG"/>    
   </appender>  

    <!-- 默认的异步文件日志输出，生产环境都采用此appender -->  
	<!--
    <appender name="ASYNC_JOP_LOG" class="org.apache.log4j.AsyncAppender">          
     <param name="BufferSize" value="512"/>       
     <param name="LocationInfo" value="true"/>     
     <appender-ref ref="JOP_LOG"/>    
   </appender>  
	-->
    <!-- console 异步日志,开发环境都使用此appender，方便调试 -->  
   <appender name="ASYNC_CONSOLE" class="org.apache.log4j.AsyncAppender">          
     <param name="BufferSize" value="64"/>       
     <param name="LocationInfo" value="true"/>  
     <appender-ref ref="CONSOLE"/>    
   </appender>  

    <!-- 监控数据，启用监控功能时使用 -->  
	<!--
    <appender name="MONITOR_SQLLOG" class="com.xxx.xxxx.infrastructure.log4j.JDBCExtAppender">  
        <param name="driver" value="oracle.jdbc.driver.OracleDriver"/>          
	<param name="URL" value="jdbc:oracle:thin:@10.200.5.200:1521:BOSS15TEST"/>  
	<param name="User" value="jop"/> 
        <param name="Password" value="jp"/>  
        <param name="sql" value="insert into SYS_ACCTMONITOR(ID,STARTTIME, USETIME,PARENTFLOWNO,IP,CLIENT,OPERATOR,TARGETSYSTEM,TARGETMODULE,TARGETFUNCTION,TARGETOPERATION,PARAMLIST,RESULTSTATUS,RESULTCODE) values (SYS_ACCTMONITOR_SEQ.nextval,to_timestamp('@starttime@','yyyy-MM-dd hh24:mi:ss.ff'), @usetime@, '@parentflowno@','@ip@','@client@','@operator@','@targetsystem@','@targetmodule@','@targetfunction@','@targetoperation@','@paramlist@','@resultstatus@','@resultcode@')"/>  
    </appender>  
	-->
	
    <!-- 监控数据记录异步化，只能给监控 com.xxx.xxxx.monitor 使用，其他logger不得使此 appender -->  
    <appender name="ASYNC_MONITOR_SQLLOG" class="org.apache.log4j.AsyncAppender">          
     <param name="BufferSize" value="1024"/>       
     <param name="LocationInfo" value="true"/>  
     <appender-ref ref="MONITOR_SQLLOG"/>    
   </appender>  

   <!-- 监控需要特殊控制，输出到自己的appender -->  
   <!--
    <category name="com.xxx.xxxx.monitor"> 
        <param name="additivity" value="false"/>    
        <priority value="DEBUG" />  
        <appender-ref ref="ASYNC_MONITOR_SQLLOG" />  
    </category>  
	-->

    <category name="org.hibernate.type">  
        <param name="additivity" value="false"/>    
        <priority value="WARN" />        
        <appender-ref ref="ASYNC_APPMGR_LOG" />  <!-- ASYNC_Hibernate_SQL -->  
    </category>


   <!-- 默认所有业务日志输出到文件 appmgr.log, 异步输出; 其他特殊控制，如：缓存日志输出到jop.log -->  
    <root>
        <priority value="INFO" />
        <appender-ref ref="ASYNC_APPMGR_LOG" />    <!-- 生产环境 ASYNC_APPMGR_LOG -->
    </root>  
</log4j:configuration>

   参考：http://skysoul1985.iteye.com/blog/1405570

tomcat优化：

http://blog.csdn.net/lifetragedy/article/details/7708724