logback 笔记 详细还是参靠官网吧

logback

• 基础配置

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      %d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
    
  

  
    
  

• configuration

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1.reload配置文件修改
     
      ...
     
2.打印jar包版本
    
      ...
    
3.配置logback servlet 查看配置信息
   
        ViewStatusMessages
        ch.qos.logback.classic.ViewStatusMessagesServlet
  

  
    ViewStatusMessages
    /lbClassicStatus
  

• appender

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    myApp.log

    
      %date %level [%thread] %logger{10} [%file:%line] %msg%n
    
  

  
    
      %msg%n
    
  

  
    
    
  
    

以下会导致重复打印


  
    
      %d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
    
  

  
    
  

  
    
  

• 设置默认不覆盖

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• 设置上下文名称 区分不同应用记录

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  myAppName
  
    
      %d %contextName [%t] %level %logger{36} - %msg%n
    
  

  
    
  

• 变量替换

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    ${USER_HOME}/myApp.log
    
      %msg%n
    
  

  
    
  

• 条件判断

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          %d %-5level %logger{35} - %msg %n
        
      
      
        
      
    
  

  
    ${randomOutputDir}/conditional.log
    
      %d %-5level %logger{35} - %msg %n