停止Logback系统以实现干净关闭

问题描述

我最近一直在尝试使用，并且直接从Eclipse内部运行示例。当我这样做时，我注意到 - 即使在我的静态 main（String [] args）方法结束后（从我的Java驱动程序类中），应用程序仍在运行。 / p>

我最终确定Logback正在管理自己的线程，即使在我的主应用程序退出之后它仍然存活。我搜索了一些解决方案并发现这是一种从Java内部显式关闭Logback的方法：

  ILoggerFactory factory = LoggerFactory。 getILoggerFactory（）; 
 if（工厂instanceof LoggerContext）{
 LoggerContext ctx =（LoggerContext）factory; 
 ctx.stop（）; 
} 
  

这真的是干净地关闭回归的唯一方法吗？ / strong>我从来没有遇到过一个日志系统（JUL，JCL，log4j等），它会让你明确地关闭它以便优雅地退出你的应用程序......

提前致谢！

更新：此处为 logback.xml ：

 < configuration debug =truescan =truescanPeriod =5 minutes> 
< appender name =logManager-consoleAppenderclass =ch.qos.logback.core.ConsoleAppender> 
< filter class =ch.qos.logback.classic.filter.LevelFilter> 
< level> TRACE< / level> 
< onMatch> ACCEPT< / onMatch> 
< onMismatch> NEUTRAL< / onMismatch> 
< / filter> 
< filter class =ch.qos.logback.classic.filter.LevelFilter> 
< level> DEBUG< / level> 
< onMatch> ACCEPT< / onMatch> 
< onMismatch> DENY< / onMismatch> 
< / filter> 
< encoder> 
< pattern>％d {HH：mm：ss.SSS} [％thread]％-5level％logger {36}  - ％msg％n< / pattern> 
< / encoder> 
< / appender> 
 
< appender name =logManager-smtpAppenderclass =ch.qos.logback.classic.net.SMTPAppender> 
< filter class =ch.qos.logback.classic.filter.LevelFilter> 
< level> WARN< / level> 
< onMatch> ACCEPT< / onMatch> 
< onMismatch> NEUTRAL< / onMismatch> 
< / filter> 
< filter class =ch.qos.logback.classic.filter.LevelFilter> 
< level> ERROR< / level> 
< onMatch> ACCEPT< / onMatch> 
< onMismatch> DENY< / onMismatch> 
< / filter> 
< smtpHost> my.smtp.host< / smtpHost> 
< to> [email protected]< / to> 
< from> [email protected]< / from> 
< username> my_user< / username> 
< password> my_password< / password> 
< subject>％logger {20}  - ％m< / subject> 
< layout class =ch.qos.logback.classic.html.HTMLLayout/> 
< cyclicBufferTracker class =ch.qos.logback.core.spi.CyclicBufferTracker> 
< bufferSize> 5< / bufferSize> 
< / cyclicBufferTracker> 
< / appender> 
 
< root level =ALL> 
< appender-ref ref =logManager-consoleAppender/> 
< appender-ref ref =logManager-smtpAppender/> 
< / root> 
< / configuration> 
  

使用logback-1.0.13和JDK 1.6u34。

解决方案

问题可能是由于logback中的错误。在SMTPAppender中将设置为true可以避免错误（无需实际修复）。我已经在我们的jira中添加了来描述这个问题。

I've been experimenting with logback recently and have been running examples directly from inside Eclipse. When I do this, I notice that - even after my static main(String[] args) method ends (from inside my Java driver class), the application keeps running.

I eventually ascertained that Logback is managing its own threads that are staying alive even after my main application exits. I googled around for some solutions and found this as a way of explicitly shutting down Logback from inside Java:

ILoggerFactory factory = LoggerFactory.getILoggerFactory();
if(factory instanceof LoggerContext) {
    LoggerContext ctx = (LoggerContext)factory;
    ctx.stop();
}

Is this really the only way of shutting down logback cleanly? I've never encountered a logging system (JUL, JCL, log4j, etc.) that makes you explicitly shut it down in order to gracefully exit your application...

Thanks in advance!

Update: here is logback.xml:

<configuration debug="true" scan="true" scanPeriod="5 minutes">
    <appender name="logManager-consoleAppender" class="ch.qos.logback.core.ConsoleAppender">
        <filter class="ch.qos.logback.classic.filter.LevelFilter">
            <level>TRACE</level>
            <onMatch>ACCEPT</onMatch>
            <onMismatch>NEUTRAL</onMismatch>
        </filter>
        <filter class="ch.qos.logback.classic.filter.LevelFilter">
            <level>DEBUG</level>
            <onMatch>ACCEPT</onMatch>
            <onMismatch>DENY</onMismatch>
        </filter>
        <encoder>
            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
        </encoder>
    </appender>

    <appender name="logManager-smtpAppender" class="ch.qos.logback.classic.net.SMTPAppender">
        <filter class="ch.qos.logback.classic.filter.LevelFilter">
            <level>WARN</level>
            <onMatch>ACCEPT</onMatch>
            <onMismatch>NEUTRAL</onMismatch>
        </filter>
        <filter class="ch.qos.logback.classic.filter.LevelFilter">
            <level>ERROR</level>
            <onMatch>ACCEPT</onMatch>
            <onMismatch>DENY</onMismatch>
        </filter>
        <smtpHost>my.smtp.host</smtpHost>
        <to>[email protected]</to>
        <from>[email protected]</from>
        <username>my_user</username>
        <password>my_password</password>
        <subject>%logger{20} - %m</subject>
        <layout class="ch.qos.logback.classic.html.HTMLLayout"/>
        <cyclicBufferTracker class="ch.qos.logback.core.spi.CyclicBufferTracker">
            <bufferSize>5</bufferSize>
        </cyclicBufferTracker>
    </appender>

    <root level="ALL">
        <appender-ref ref="logManager-consoleAppender" />
        <appender-ref ref="logManager-smtpAppender" />
    </root>
</configuration>

Using logback-1.0.13 and JDK 1.6u34.

解决方案

The issue is probably due to a bug in logback. Setting asynchronousSending to true in SMTPAppender circumvents the bug (without actually fixing it). I have added a new issue in our jira describing the problem.

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