logback：两个appender，多个记录器，不同级别 [英] logback: Two appenders, multiple loggers, different levels

问题描述

我想在我的应用程序（Spring Integration），debug.log和main.log中有两个日志文件。我想在INFO级别运行main.log，在DEBUG级别运行debug.log。这对于appender上的过滤器是可行的。我想根据源记录不同级别的appender。换句话说，

 < logger name =org.springframeworklevel =ERROR> 
< appender-ref ref =main/> 
< / logger> 
< logger name =org.springframeworklevel =DEBUG> 
< appender-ref ref =debug/> 
< / logger> 
< logger name =com.myapplevel =INFO> 
< appender-ref ref =main/> 
< / logger> 
< logger name =com.myapplevel =DEBUG> 
< appender-ref ref =debug/> 
< / logger> 
  

总结一下：

1. Spring记录器
   
   
   
   • main - > ERROR
   
   
   • debug - > DEBUG
   
   


2. com.myapp logger
   
   
   
   • main - > INFO
   
   
   • debug - > DEBUG
   
   

因此我必须让记录器在DEBUG上运行并达到阈值过滤器上的过滤器不够精细。<​​/ p>

更新增加问题的清晰度

解决方案

创建一个ThresholdLoggerFilter类，它可以放在一个appender上：

 < appender name =STDOUTclass =ch.qos.logback.core.ConsoleAppender> 
< filter class =ch.qos.logback.classic.filter.ThresholdFilter> 
< level> INFO< / level> 
< / filter> 
< filter class =com.myapp.ThresholdLoggerFilter> 
< logger> org.springframework< / logger> 
< level> ERROR< / level> 
< / filter> 
< / appender> 
  

以下代码有效

  package com.myapp; 
 
 import ch.qos.logback.classic.Level; 
 import ch.qos.logback.classic.spi.ILoggingEvent; 
 import ch.qos.logback.core.filter.Filter; 
 import ch.qos.logback.core.spi.FilterReply; 
 
公共类ThresholdLoggerFilter扩展Filter< ILoggingEvent> {
私人等级; 
 private String logger; 
 
 @Override 
 public FilterReply决定（ILoggingEvent事件）{
 if（！isStarted（））{
返回FilterReply.NEUTRAL; 
} 
 
 if（！event.getLoggerName（）。startsWith（logger））
 return FilterReply.NEUTRAL; 
 
 if（event.getLevel（）。isGreaterOrEqual（level））{
 return FilterReply.NEUTRAL; 
} else {
返回FilterReply.DENY; 
} 
} 
 
 public void setLevel（级别级别）{
 this.level = level; 
} 
 
 public void setLogger（String logger）{
 this.logger = logger; 
} 
 
 public void start（）{
 if（this.level！= null&& this.logger！= null）{
 super.start （）; 
} 
} 
} 
  

I want to have two log files in my application (Spring Integration), debug.log and main.log. I want to run main.log at an INFO level and debug.log at a DEBUG level. This is doable with filters on the appenders. I want to log different levels to the appenders based on the source. In other words

<logger name="org.springframework" level="ERROR">
    <appender-ref ref="main" />
</logger>
<logger name="org.springframework" level="DEBUG">
    <appender-ref ref="debug" />
</logger>
<logger name="com.myapp" level="INFO">
    <appender-ref ref="main" />
</logger>
<logger name="com.myapp" level="DEBUG">
    <appender-ref ref="debug" />
</logger>

So to summarise:

1. Spring logger
   • main -> ERROR
   • debug -> DEBUG
2. com.myapp logger
   • main -> INFO
   • debug -> DEBUG

Because of this I have to have the loggers running at DEBUG and a threshold filter on an appender isn't fine grained enough.

Update Added clarity to the question

解决方案

Create a ThresholdLoggerFilter class which can be put on an appender like:

<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
    <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
        <level>INFO</level>
    </filter>
    <filter class="com.myapp.ThresholdLoggerFilter">
        <logger>org.springframework</logger>
        <level>ERROR</level>
    </filter>
    </appender>

The following code works

package com.myapp;

import ch.qos.logback.classic.Level;
import ch.qos.logback.classic.spi.ILoggingEvent;
import ch.qos.logback.core.filter.Filter;
import ch.qos.logback.core.spi.FilterReply;

public class ThresholdLoggerFilter extends Filter<ILoggingEvent> {
    private Level level;
    private String logger;

    @Override
    public FilterReply decide(ILoggingEvent event) {
        if (!isStarted()) {
            return FilterReply.NEUTRAL;
        }

        if (!event.getLoggerName().startsWith(logger))
            return FilterReply.NEUTRAL;

        if (event.getLevel().isGreaterOrEqual(level)) {
            return FilterReply.NEUTRAL;
        } else {
            return FilterReply.DENY;
        }
    }

    public void setLevel(Level level) {
        this.level = level;
    }

    public void setLogger(String logger) {
        this.logger = logger;
    }

    public void start() {
        if (this.level != null && this.logger != null) {
            super.start();
        }
    }
}

这篇关于logback：两个appender，多个记录器，不同级别的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！