滚动日志记录文件大小和时间

Question

我一直在尝试设置一个简单的logback项目来按日期和文件大小滚动我的日志文件,到目前为止,我一直无法让我的appender转到另一个文件.而是写入<file />标记指定的日志.

这是我的logback.xml配置文件:

<?xml version="1.0"?>
<configuration scan="true" scanPeriod="10 seconds">
    <appender name="stdout" class="ch.qos.logback.core.ConsoleAppender">
        <layout class="ch.qos.logback.classic.PatternLayout">
            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger - %msg%n</pattern>
        </layout>
    </appender>

    <appender name="milliroller" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>log/output.log</file>
        <layout class="ch.qos.logback.classic.PatternLayout">
            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger - %msg%n</pattern>
        </layout>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <fileNamePattern>log/mylog-%d{yyyy-MM-dd}.%i.txt</fileNamePattern>
            <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                <maxFileSize>1KB</maxFileSize>
            </timeBasedFileNamingAndTriggeringPolicy>
        </rollingPolicy>
    </appender>

    <root level="DEBUG">
        <appender-ref ref="stdout"/>
        <appender-ref ref="milliroller"/>
    </root>

    <logger name="com.tkassembled.logback" level="DEBUG"/>
</configuration>

乍一看,它看起来应该有效,对吗？有什么我做错了吗？我的整个可构建项目都可以在这里找到:http://www.mediafire.com/file/2bxokkdyz2i/logback.zip

Answer 1

虽然这是一个老问题,但我觉得一个有效的答案可以帮助那些需要这种实现的人.

我使用以下logback配置来提供HTML日志,按日期和文件大小滚动,以及记录到控制台以进行调试输出.

日志文件存储在logs名称为logFile.html活动的目录中,logFile.2013-mm-dd.i.html当它翻转时,其中i是50MB日志文件的数量.例如logFile.2013-01-07.0.html.

<configuration>

  <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
    <!-- encoders are assigned the type
         ch.qos.logback.classic.encoder.PatternLayoutEncoder by default -->
    <encoder>
      <charset>UTF-8</charset>
      <pattern>%d{HH:mm:ss.SSS} [%thread] %highlight(%-5level) %cyan(%logger{35}) - %msg %n</pattern>
    </encoder>
  </appender>

  <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
    <file>logs\logFile.html</file>
    <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
      <!-- daily rollover -->
      <fileNamePattern>logs\logFile.%d{yyyy-MM-dd}.%i.html</fileNamePattern>
      <timeBasedFileNamingAndTriggeringPolicy
          class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
          <!-- or whenever the file size reaches 50MB -->
        <maxFileSize>50MB</maxFileSize>
      </timeBasedFileNamingAndTriggeringPolicy>
      <!-- keep 30 days' worth of history -->
      <maxHistory>30</maxHistory>
    </rollingPolicy>
    <encoder class="ch.qos.logback.core.encoder.LayoutWrappingEncoder">
      <charset>UTF-8</charset>
      <layout class="ch.qos.logback.classic.html.HTMLLayout">
        <pattern>%d{HH:mm:ss.SSS}%thread%level%logger%line%msg</pattern>
      </layout>         
    </encoder>
  </appender> 

  <root level="DEBUG">
    <appender-ref ref="STDOUT" />
    <appender-ref ref="FILE" />     
  </root>

</configuration>

Answer 2

自从logback 1.1.7(2016年3月发布)以来,SizeAndTimeBasedRollingPolicy可以使用一个新的appender 来大大简化你需要做的事情:

<appender name="ROLLING" class="ch.qos.logback.core.rolling.RollingFileAppender">
    <file>app.log</file>
    <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
        <fileNamePattern>app-%d{yyyy-MM-dd}.%i.log</fileNamePattern>
        <maxFileSize>10MB</maxFileSize>    
        <maxHistory>30</maxHistory>
        <totalSizeCap>1GB</totalSizeCap>
    </rollingPolicy>
    <encoder>
        <pattern>%msg%n</pattern>
    </encoder>
</appender>

有关详细信息,请参见此处