springboot（二）添加logback日志

╰半橙微兮° 2022-07-14 07:07 229阅读 0赞

springboot默认引入logback相关的jar包

1、在 Application.properties里添加

logging.config=classpath:logback-spring.xml
    当文件名为logback.xml或者logback-spring.xml时不需要配置logging.config

2、创建logback-spring.xml文件：

3、（1）彩色日志需要IDE支持ANSI Escape Color，如果不需要就用下面的appender

（2）将日志输出到文件
    
     <?xml version="1.0" encoding="UTF-8" ?>
    <configuration scan="true" scanPeriod="60 seconds" debug="false">
    
        <include resource="org/springframework/boot/logging/logback/defaults.xml" />
        
        <property name="LOG_HOME" value="/var/log" />
    
        
        
        <conversionRule conversionWord="clr" converterClass="org.springframework.boot.logging.logback.ColorConverter" />
        <conversionRule conversionWord="wex" converterClass="org.springframework.boot.logging.logback.WhitespaceThrowableProxyConverter" />
        <conversionRule conversionWord="wEx" converterClass="org.springframework.boot.logging.logback.ExtendedWhitespaceThrowableProxyConverter" />
        
        <property name="CONSOLE_LOG_PATTERN" value="${CONSOLE_LOG_PATTERN:-%clr(%d{yyyy-MM-dd HH:mm:ss.SSS}){faint} %clr(${LOG_LEVEL_PATTERN:-%5p}) %clr(${PID:- }){magenta} %clr(---){faint} %clr([%15.15t]){faint} %clr(%-40.40logger{39}){cyan} %clr(:){faint} %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}}" />
        
        <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
            <encoder charset="UTF-8">
                
                <pattern>${CONSOLE_LOG_PATTERN}</pattern>
            </encoder>
        </appender>
        <appender name="FILE"  class="ch.qos.logback.core.rolling.RollingFileAppender">
            <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
                
                <FileNamePattern>${LOG_HOME}/web.%d{yyyy-MM-dd}.log</FileNamePattern>
                
                <MaxHistory>30</MaxHistory>
            </rollingPolicy>
            
            <triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
                <MaxFileSize>10MB</MaxFileSize>
            </triggeringPolicy>
            <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
                
                <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n</pattern>
            </encoder>
        </appender>
        
        
        <root level="ERROR">
            <appender-ref ref="STDOUT" />
            <appender-ref ref="FILE" />
        </root>
       <logger name="com.boot" level="INFO"></logger>
        
        
        
        
        
        
        
        
        
        
        
        
        
    </configuration>