Question

我需要选择一个日志框架来替换log4j。我最初选择了slf4j + logback进行日志记录，并编写了以下配置，它将应用程序日志和apache cxf的日志输出到单独的文件中，并在控制台上输出spring / hibernate日志：

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<appender name="consoleAppender" class="ch.qos.logback.core.ConsoleAppender">
    <encoder>
        <Pattern>.%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg %n
        </Pattern>
    </encoder>
    <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
        <level>TRACE</level>
    </filter>
</appender>

<appender name="dailyRollingFileAppender" class="ch.qos.logback.core.rolling.RollingFileAppender">
    <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
        <FileNamePattern>D:\\MYDIR\\logs\\app_logback.%d{yyyy-MM-dd}.log</FileNamePattern>
        <maxHistory>30</maxHistory>         
    </rollingPolicy>

    <encoder>
        <Pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{35} - %msg %n</Pattern>
    </encoder>      
</appender>

<appender name="minuteRollingFileAppenderCxf" class="ch.qos.logback.core.rolling.RollingFileAppender">
    <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
        <FileNamePattern>D:\\MYDIR\\logs\\app_logback_cxf.%d{yyyy-MM-dd_HH-mm}.log</FileNamePattern>
        <maxHistory>30</maxHistory>         
    </rollingPolicy>

    <encoder>
        <Pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{35} - %msg %n</Pattern>
    </encoder>      
</appender>

<logger name="com.mycustomcode" additivity="false">
    <level value="DEBUG" />
    <appender-ref ref="dailyRollingFileAppender"/>
</logger>

<logger name="org.apache" additivity="false">
    <level value="INFO" />
    <appender-ref ref="minuteRollingFileAppenderCxf"/>
</logger>

<root>
    <level value="INFO" />
    <appender-ref ref="consoleAppender" />
</root>
</configuration>

但是，我开始了解log4j2中的异步日志记录，我想在我的设置中使用log4j2实现异步日志记录，我编写了以下配置：

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

<RandomAccessFile name="RandomAccessFile" fileName="D:\\MYDIR\\logs\\app_log4j2.log" immediateFlush="false" append="false">
  <PatternLayout>
    <Pattern>%d %p %c{1.} [%t] %m %ex%n</Pattern>
  </PatternLayout>
</RandomAccessFile>

<RandomAccessFile name="RandomAccessFile2" fileName="D:\\MYDIR\\logs\\app_log4j2_cxf.log" immediateFlush="false" append="false">
  <PatternLayout>
    <Pattern>%d %p %c{1.} [%t] %m %ex%n</Pattern>
  </PatternLayout>
</RandomAccessFile>
</Appenders>

<Loggers>
<AsyncLogger name="com.mycustomcode" level="debug" includeLocation="true" additivity="false">
  <AppenderRef ref="RandomAccessFile"/>
</AsyncLogger>

<AsyncLogger name="org.apache" level="debug" includeLocation="true" additivity="false">
  <AppenderRef ref="RandomAccessFile2"/>
</AsyncLogger>

<Root level="debug" includeLocation="false">
  <AppenderRef ref="Console"/>
</Root>
</Loggers>

</Configuration>

log4j2配置有效，但它只在其文件（app_log4j2.log）中正确打印“com.mycustomcode”的日志。在app_log4j2_cxf.log文件中没有为“org.apache”打印任何内容 - 事实上，它是空白的，其日志将打印到服务器控制台。

有人可以指出我做错了什么吗？感谢

Answer 1

logback也有异步支持。检查AsyncAppender

http://logback.qos.ch/manual/appenders.html

Answer 2

使用此配置的代码是否使用名称以“org.apache”开头的Logger？如果没有，您将看不到此记录器的任何输出。

要验证这一点，请使用以下配置：

Logger logger = LogManager.getLogger("org.apache.anything");
logger.debug("test");

logback to log4j2 async logging migration

2 个答案: