java – Log4j用不同格式记录两次

首先尝试使用下面的根记录器配置而不是你的< appender-ref ref =“async”/> –

<logger name="org.hibernate.LazyInitializationException" additivity="false">
   <level value="off" />
   <appender-ref ref="myAppender" />
</logger>
..............
...........
 <root>
     <priority value="INFO" />
     <appender-ref ref="myAppender" />
 </root>

如果以上方法不起作用,则尝试将< param name =“Threshold”value =“ERROR”/>无论是在async和myAppender,我猜没有服务器启动成功日志将被打印(我想你已经尝试与myAppender)

如果这有帮助,那么这意味着您尝试引用/继承记录器的方式不正常或正确使用,所以您从该方向思考并纠正问题,您需要阅读有关appender-ref元素和AsyncAppender记录器的更多信息.

无论以上是否有效,我猜你试图实现以下目标 –

>打印您的标准输入/输出,即您的终端窗口
>打印文件以及prod环境

我将在log4j.properties中执行以下操作：

log4j.logger.com.sks.cs50=DEBUG,CS50GlobalFileAppender,stdout

#####CS50 Web log##########
log4j.appender.CS50GlobalFileAppender=org.apache.log4j.RollingFileAppender
log4j.appender.CS50GlobalFileAppender.File=${logDir}cs50.log
log4j.appender.CS50GlobalFileAppender.MaxBackupIndex=50
log4j.appender.CS50GlobalFileAppender.Threshold=DEBUG
log4j.appender.CS50GlobalFileAppender.layout=org.apache.log4j.PatternLayout
log4j.appender.CS50GlobalFileAppender.layout.ConversionPattern=%C %d [%t] [%X{randomNumber}] %-5p - %m%n
log4j.appender.CS50GlobalFileAppender.MaxFileSize=500000KB

# Log format to standard output
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d [%X{randomNumber}] %-5p - %m%n

log4j.logger.org.apache = INFO
log4j.logger.com.sun = INFO
log4j.logger.sun = INFO
log4j.logger.javax.xml.bind = INFO
log4j.logger.org.springframework = INFO
log4j.logger.com.cgi = DEBUG

所以,我想你可以做一些如下的事情.

<log4j:configuration>

    <appender name="async" class="org.apache.log4j.AsyncAppender">
    <!-- this parameter need to be set to false to avoid application from hanging. -->
        <param name="Blocking" value="false" />
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%-5p %d{ISO8601} [%t] %c %x - %m%n" />
        </layout>
    </appender>

    <appender name="myAppender" class="org.apache.log4j.ConsoleAppender">
        <param name="Threshold" value="INFO" />
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%-5p %d{ISO8601} [%t] %c %x - %m%n" />
        </layout>
    </appender>

    <logger name="com.server">
        <level value="INFO" />
    </logger>

    <logger name="org.springframework">
        <level value="INFO" />
    </logger>

    <logger name="org.hibernate.LazyInitializationException" additivity="false">
       <level value="off" />
       <appender-ref ref="async" />
    </logger>

    <logger name="net.sf.ehcache">
        <level value="INFO" />
    </logger>

     <logger name="com.mchange">
         <level value="INFO" />
     </logger>

     <root>
         <priority value="INFO" />
         <appender-ref ref="async" />
         <appender-ref ref="myAppender" />
     </root>

</log4j:configuration>

请注意,以上XML配置是假定org.apache.log4j.AsyncAppender打印在某些日志文件中,但如果没有(我猜测它不是),那么上面的方法将不起作用(您仍然可以使用以上XML配置来实现文件控制台日志记录,如果您使用org.apache.log4j.RollingFileAppender替换AsyncAppender),并且我想知道为什么只能不能直接使用org.apache.log4j.AsyncAppender,因为它已经打印到控制台,所以可能只是使用：

<appender name="async" class="org.apache.log4j.AsyncAppender">
<!-- this parameter need to be set to false to avoid application from hanging. -->
    <param name="Blocking" value="false" />
    <layout class="org.apache.log4j.PatternLayout">
        <param name="ConversionPattern" value="%-5p %d{ISO8601} [%t] %c %x - %m%n" />
    </layout>
</appender>