SpringBoot使用logback日志记录器

一时失言乱红尘 2021-11-16 16:46 357阅读 0赞

logback为log4j的扩展，是一种日志记录器  
使用方式:  
用maven导入springboot相关依赖后就会拥有logback的相关jar包，我们只需要在src/main/resources下写一个logback.xml文件

<?xml version="1.0" encoding="UTF-8" ?>
     <configuration>
      
        <property name="LOG_HOME" value="${catalina.base}/logs/" />  
           
        <appender name="Stdout" class="ch.qos.logback.core.ConsoleAppender">
             
            <layout class="ch.qos.logback.classic.PatternLayout">   
                  
                <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n   
                </pattern>   
            </layout>   
        </appender>   
           
        <appender name="RollingFile"  class="ch.qos.logback.core.rolling.RollingFileAppender">   
            <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
                
                <FileNamePattern>${LOG_HOME}/server.%d{yyyy-MM-dd}.log</FileNamePattern>   
                <MaxHistory>30</MaxHistory>
            </rollingPolicy>   
            <layout class="ch.qos.logback.classic.PatternLayout">  
                 
                <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n   
                </pattern>   
           </layout> 
            
           <triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
             <MaxFileSize>10MB</MaxFileSize>
           </triggeringPolicy>
        </appender>     
    
        
        <root level="info">   
            <appender-ref ref="Stdout" />   
            <appender-ref ref="RollingFile" />   
        </root> 
    
    
    
      
    
    
    </configuration>

运行项目，控制台打印info级别的日志，并且会发现，在项目的路径下生成了  
![在这里插入图片描述][20190729090548849.PNG]

[20190729090548849.PNG]: /images/20211116/de79c04a669f4892974b351bd921176b.png