log4j2 xml配置-登录到文件和控制台(具有不同级别) [英] log4j2 xml configuration - Log to file and console (with different levels)

问题描述

我想做两件事:

1. 以特定的日志级别登录控制台
2. 使用另一个日志级别登录到文件

控制台日志记录似乎工作正常，但日志文件却一直空着.

Console logging seems to work just fine but the log file keeps beeing empty.

这是我的log4j2.xml

This is my log4j2.xml

<?xml version="1.0" encoding="UTF-8"?>
<configuration status="WARN">
  <appenders>
    <Console name="Console" target="SYSTEM_OUT">
      <PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/>
    </Console>

    <File name="MyFile" fileName="logs/app.log" immediateFlush="true">
        <PatternLayout pattern="%d{yyy-MM-dd HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/>
    </File>  

  </appenders>
  <loggers>

    <logger name="filelogger" level="error">
        <appender-ref ref="MyFile"/>
    </logger>

    <root level="info">
      <appender-ref ref="Console"/>
    </root>
  </loggers>
</configuration>

怎么了?

推荐答案

我知道了！在这种情况下，不应使用<Logger>标记，有关详细信息，请参见Gaurang Patel的答案.

I figured it out! The <Logger> tag shouldn't be used in this case, see Gaurang Patel's answer for details.

<?xml version="1.0" encoding="UTF-8"?>
<configuration status="WARN">
  <appenders>
    <Console name="Console" target="SYSTEM_OUT">
      <PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/>
    </Console>

    <File name="MyFile" fileName="logs/app.log">
        <PatternLayout pattern="%d{yyyy-mm-dd HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/>
    </File>             
  </appenders>

  <loggers>     
    <root level="debug">
      <appender-ref ref="Console" level="info"/>
      <appender-ref ref="MyFile" level="error"/>
    </root>    
  </loggers>
</configuration>

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