logger.debug（…）在日志文件中打印两次

Question

We have written some logger.debug() statements in code, but it's printing twice in below fachene.

2012-10-17 10:53:34,791, MessageListenerThreadPool : 0, [package name], Entered the method(), ,2012-10-17 10:53:34,791 MessageListenerThreadPool : 0 DEBUG [package name] Entered the method()

Please help me why it's printing twice?

Below is my log4j configuration.

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

<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/" debug="false">
    <appender name="infoLogsFile" class="org.apache.log4j.FileAppender">
      <param name="File" value="Application.log"/>
       <param name="Threshold" value="DEBUG"/>
      <layout class="org.apache.log4j.PatternLayout">
         <!-- The default pattern: Date Priority [Category] Message\n -->
         <param name="ConversionPattern" value="%d %t %-5p [%c] %m%n"/>
      </layout>
   </appender>   

   <appender name="fatalLogsFile" class="org.apache.log4j.FileAppender">
         <param name="File" value="Application_Func_Point.log"/>
       <param name="Threshold" value="FATAL"/>
         <layout class="org.apache.log4j.PatternLayout">
             <param name="ConversionPattern" value="%d, %t, [%c], %m, %n,"/>
         </layout>
   </appender>


   <appender name="custom" class="org.apache.log4j.RollingFileAppender">
   <param name="File" value="Application.log"/>
   <param name="Append" value="true"/>
    <param name="Threshold" value="DEBUG"/>
   <param name="MaxFileSize" value="75000KB"/>
   <param name="maxBackupIndex" value="500"/>
   <layout class="org.apache.log4j.PatternLayout">
      <param name="ConversionPattern" value="%d, %t, [%c], %m, %n,"/>
   </layout>       
   </appender>
<logger name="com.unisys"> `
    <level value="debug" /> 
</logger>
   <!-- ======================= -->
   <!-- Setup the Root category -->
   <!-- ======================= -->
   <root> 
    <priority value ="debug" /> 
       <appender-ref ref="custom"/>
    <appender-ref ref="fatalLogsFile"/>
    <appender-ref ref="infoLogsFile"/>
   </root>
</log4j:configuration>

Thanks

Answer 1

您有2个使用同一文件的追加程序：“ infoLogsFile”和“ custom”都链接到“ Application.log”，并且两个阈值参数的值均为“ DEBUG”，这意味着您在DEBUG级别登录的所有内容都会被写入两次