log4j2 config.xml中的多个附加程序、多个记录器

Question

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

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

<appender name="console" class="org.apache.log4j.ConsoleAppender"> 
    <param name="Target" value="System.out"/> 
    <param name="threshold" value="info" />
    <layout class="org.apache.log4j.PatternLayout"> 
        <param name="ConversionPattern" value="%d{ABSOLUTE} %-5p %c [%t] %X{ctx} ~ %m%n" />
    </layout> 
</appender> 

<appender name="standard" class="org.apache.log4j.DailyRollingFileAppender">
    <param name="file" value="logs/broadcast.log" />
    <param name="DatePattern" value="'.'yyyy-MM-dd" />
    <param name="threshold" value="debug" />
    <layout class="org.apache.log4j.PatternLayout">
        <param name="ConversionPattern" value="%d{DATE} %-5p %c{1} [%t] %X{ctx} ~ %m%n" />
    </layout>   
</appender>

<appender name="stderr" class="org.apache.log4j.FileAppender">
    <param name="file" value="logs/broadcast.err" />
    <param name="threshold" value="error" />
    <layout class="org.apache.log4j.PatternLayout">
        <param name="ConversionPattern" value="%d{DATE} %-5p %c{1} [%t] %X{ctx} ~ %m%n" />
    </layout>
</appender>

 <appender name="jlv" class="org.apache.log4j.net.SocketAppender">
    <param name="remoteHost" value="localhost"/>
    <param name="port" value="4445"/>
    <param name="locationInfo" value="true"/>
  </appender>

<logger name="com.mydetv.broadcast.BroadcastLoop">
    <level value="warn"/>
    <appender-ref ref="console" />
</logger>
<logger name="com.mydetv.broadcast.BroadcastUpdate22">
    <level value="warn"/>
    <appender-ref ref="console" />
</logger>
<logger name="com.mydetv.broadcast.vlc.VlcRequest22">
    <level value="warn"/>
    <appender-ref ref="console" />
</logger>

<root> 
    <priority value ="debug" /> 
    <appender-ref ref="standard" /> 
    <appender-ref ref="stderr"/> 
    <appender-ref ref="console" /> 
    <appender-ref ref="jlv"/>
</root>

</log4j:configuration>

Answer 1

首先，您的配置看起来是log4j-1.x，而不是log4j2。如果要使用log4j2，则需要对其进行转换。（手册中有许多新语法的示例。）

它最初认为您可能需要使用log4j2 ThresholdFilter(http://logging.apache.org/log4j/2.x/manual/filters.html#ThresholdFilter)，但这可能是一种更简单的方法：

（顺便说一句，下面的示例配置中的布局模式仍然需要一些工作来匹配您的原始配置。）

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="warn" name="MyApp" packages="">
  <Appenders>
    <RollingFile name="RollingFile" fileName="logs/app.log" filePattern="logs/app-%d{MM-dd-yyyy}.log.gz"
                 ignoreExceptions="false">
      <PatternLayout>
        <Pattern>%d %p %c{1.} [%t] %m%n</Pattern>
      </PatternLayout>
      <TimeBasedTriggeringPolicy />
    </RollingFile>
    <Console name="STDOUT" target="SYSTEM_OUT" ignoreExceptions="false">
      <PatternLayout pattern="%m%n"/>
    </Console>
  </Appenders>
  <Loggers>
     <Logger name="com.mysetv.broadcast.BroadcastLoop" level="trace" additivity="false">
      <AppenderRef ref="STDOUT" level="warn" />
      <AppenderRef ref="RollingFile"/>
    </Logger>
... (add other named loggers here)...
   <Root level="trace">
      <AppenderRef ref="STDOUT" level="info" />
      <AppenderRef ref="RollingFile"/>
    </Root>
  </Loggers>
</Configuration>