Question

HI，

在我们的Web应用程序中，它打印所有日志，如Spring和JSF jars文件。这对我们来说不是必需的。如何在log4j.xml文件中设置仅过滤我们的应用程序？

更新

以下是我们用于记录的配置。你能告诉我它是否正确吗？我必须在文件中添加logger元素吗？

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<!-- Log4j Configuration file to log the messages into different logfiles -->
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">

  <appender name="DEBUG" class="org.apache.log4j.RollingFileAppender">
    <param name="File" value="D:/logs/DEBUGFILE.log"/>
     <param name="Append" value="true"/>
     <param name="MaxFileSize" value="500KB"/>
     <param name="MaxBackupIndex" value="2"/>
    <layout class="org.apache.log4j.PatternLayout">
      <param name="ConversionPattern" value="%d [%t] %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="D:/logs/AUDIT_TRAIL.log"/>
    <param name="Append" value="true"/>
     <param name="MaxFileSize" value="500KB"/>
     <param name="MaxBackupIndex" value="2"/>
    <layout class="org.apache.log4j.PatternLayout">
      <param name="ConversionPattern" value="%d [%t] %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="ERROR" class="org.apache.log4j.RollingFileAppender">
    <param name="File" value="D:/logs/ERRORFILE.log"/>
    <param name="Append" value="true"/>
    <param name="MaxFileSize" value="500KB"/>
     <param name="MaxBackupIndex" value="2"/>
    <layout class="org.apache.log4j.PatternLayout">
      <param name="ConversionPattern" value="%d [%t] %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="FATEL" class="org.apache.log4j.RollingFileAppender">
    <param name="File" value="D:/logs/FATELFILE.log"/>
    <param name="Append" value="true"/>
    <param name="MaxFileSize" value="500KB"/>
     <param name="MaxBackupIndex" value="2"/>
    <layout class="org.apache.log4j.PatternLayout">
      <param name="ConversionPattern" value="%d [%t] %p - %m%n"/>
    </layout>
     <filter class="org.apache.log4j.varia.LevelRangeFilter">
      <param name="LevelMin" value="FATAL" />
      <param name="LevelMax" value="FATAL" />
    </filter>
  </appender>

  <root>
    <priority value="debug"/>
      <appender-ref ref="DEBUG"/>
    <appender-ref ref="INFO"/>
    <appender-ref ref="ERROR"/>
    <appender-ref ref="FATEL"/>
  </root>

</log4j:configuration>

Answer 1

仅记录Spring的警告：

<logger name="org.springframework">
    <level value="warn"/>
    <appender-ref ref="socket"/>
    <appender-ref ref="stdout"/>
</logger>

JSF与jsf包名称相同... javax.faces，org.apache.myfaces，com.sun.faces等等......另外，appender-ref指的是你的appenders ......

Answer 2

您需要为您的应用程序定义自己的记录器和追加器。例如，如果您需要在com.xyz.http.RequestFilter中记录跟踪消息：

log4j.com.xyz.http.RequestFilter=TRACE, TRACE_APPEND

log4j.appender.TRACE_APPEND=org.apache.log4j.RollingFileAppender
log4j.appender.TRACE_APPEND.File=example.log

log4j.appender.TRACE_APPEND.MaxFileSize=100KB
log4j.appender.TRACE_APPEND.MaxBackupIndex=1

log4j.appender.TRACE_APPEND.layout=org.apache.log4j.PatternLayout
log4j.appender.TRACE_APPEND.layout.ConversionPattern=%p %t %c - %m%n

有关详情，请参阅log4j官方手册http://logging.apache.org/log4j/1.2/manual.html

如何在log4j.xml中设置过滤器

2 个答案: