SpringBoot整合logback日志框架，输出指定日志文件夹

待我称王封你为后i 2021-12-20 12:43 545阅读 0赞

### 简介 ###

1.  log4j和logback都是对日志接口slf4j的实现版本，但logback性能更优，日志处理更迅速，定位更准；
2.  SpringBoot已默认整合logback日志框架，适用于大多数场景；

### 实践 ###

*  maven添加依赖(由于springboot已经集成logback日志框架，所以可以直接使用)：

<parent>
    	<groupId>org.springframework.boot</groupId>
    	<artifactId>spring-boot-starter-parent</artifactId>
    	<version>2.1.0.RELEASE</version>
    </parent>

*  resources目录新增logback-spring.xml文件，并新增如下配置：

<?xml version="1.0" encoding="UTF-8"?>
    
    
    
    
    <configuration
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:noNamespaceSchemaLocation="http://www.padual.com/java/logback.xsd"
        debug="false" scan="true" scanPeriod="10 second">
    
        
        <property name="PROJECT" value="logs" /> 
        <property name="ROOT" value="logs/${PROJECT}/" />
        
        <property name="FILESIZE" value="50MB" />
        
        <property name="MAXHISTORY" value="10" />
        
        <timestamp key="DATETIME" datePattern="yyyy-MM-dd HH:mm:ss.SSS" />
        
        
        <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
            <encoder charset="utf-8">
                
                <pattern>[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %logger{36} - %msg%n</pattern>
            </encoder>
        </appender>
        
        
        <appender name="ERROR" class="ch.qos.logback.core.rolling.RollingFileAppender">
            <encoder charset="utf-8">
                <pattern>[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %logger{36} - %m%n</pattern>
            </encoder>
            
            <filter class="ch.qos.logback.classic.filter.LevelFilter">
                <level>ERROR</level>
                <onMatch>ACCEPT</onMatch>
                <onMismatch>DENY</onMismatch>
            </filter>
            
            <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
                <fileNamePattern>${ROOT}%d/error.%i.log</fileNamePattern>
                <maxHistory>${MAXHISTORY}</maxHistory>
                <timeBasedFileNamingAndTriggeringPolicy
                    class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                    <maxFileSize>${FILESIZE}</maxFileSize>
                </timeBasedFileNamingAndTriggeringPolicy>
            </rollingPolicy>
        </appender>
    
        
        <appender name="WARN" class="ch.qos.logback.core.rolling.RollingFileAppender">
            <encoder charset="utf-8">
                <pattern>[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %logger{36} - %m%n</pattern>
            </encoder>
            <filter class="ch.qos.logback.classic.filter.LevelFilter">
                <level>WARN</level>
                <onMatch>ACCEPT</onMatch>
                <onMismatch>DENY</onMismatch>
            </filter>
            <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
                <fileNamePattern>${ROOT}%d/warn.%i.log</fileNamePattern>
                <maxHistory>${MAXHISTORY}</maxHistory>
                <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                    <maxFileSize>${FILESIZE}</maxFileSize>
                </timeBasedFileNamingAndTriggeringPolicy>
            </rollingPolicy>
        </appender>
        
        
        <appender name="INFO" class="ch.qos.logback.core.rolling.RollingFileAppender">
            <encoder charset="utf-8">
                <pattern>[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %logger{36} - %m%n</pattern>
            </encoder>
            <filter class="ch.qos.logback.classic.filter.LevelFilter">
                <level>INFO</level>
                <onMatch>ACCEPT</onMatch>
                <onMismatch>DENY</onMismatch>
            </filter>
            <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
                <fileNamePattern>${ROOT}%d/info.%i.log</fileNamePattern>
                <maxHistory>${MAXHISTORY}</maxHistory>
                <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                    <maxFileSize>${FILESIZE}</maxFileSize>
                </timeBasedFileNamingAndTriggeringPolicy>
            </rollingPolicy>
        </appender>
        
        
        <appender name="DEBUG" class="ch.qos.logback.core.rolling.RollingFileAppender">
            <encoder charset="utf-8">
                <pattern>[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %logger{36} - %m%n</pattern>
            </encoder>
            <filter class="ch.qos.logback.classic.filter.LevelFilter">
                <level>DEBUG</level>
                <onMatch>ACCEPT</onMatch>
                <onMismatch>DENY</onMismatch>
            </filter>
            <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
                <fileNamePattern>${ROOT}%d/debug.%i.log</fileNamePattern>
                <maxHistory>${MAXHISTORY}</maxHistory>
                <timeBasedFileNamingAndTriggeringPolicy
                    class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                    <maxFileSize>${FILESIZE}</maxFileSize>
                </timeBasedFileNamingAndTriggeringPolicy>
            </rollingPolicy>
        </appender>
        
        
        <appender name="TRACE" class="ch.qos.logback.core.rolling.RollingFileAppender">
            <encoder charset="utf-8">
                <pattern>[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %logger{36} - %m%n</pattern>
            </encoder>
            <filter class="ch.qos.logback.classic.filter.LevelFilter">
                <level>TRACE</level>
                <onMatch>ACCEPT</onMatch>
                <onMismatch>DENY</onMismatch>
            </filter>
            <rollingPolicy
                class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
                <fileNamePattern>${ROOT}%d/trace.%i.log</fileNamePattern>
                <maxHistory>${MAXHISTORY}</maxHistory>
                <timeBasedFileNamingAndTriggeringPolicy
                    class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                    <maxFileSize>${FILESIZE}</maxFileSize>
                </timeBasedFileNamingAndTriggeringPolicy>
            </rollingPolicy>
        </appender>
        
        
        <logger name="org.apache.ibatis" level="INFO" additivity="false" />
        <logger name="org.mybatis.spring" level="INFO" additivity="false" />
        <logger name="com.github.miemiedev.mybatis.paginator" level="INFO" additivity="false" />
        
        
        <root level="INFO">
            <appender-ref ref="STDOUT" />
            <appender-ref ref="DEBUG" />
            <appender-ref ref="ERROR" />
            <appender-ref ref="WARN" />
            <appender-ref ref="INFO" /> 
            <appender-ref ref="TRACE" />
        </root>
    </configuration>

*  最后在application.yml里面添加log配置：

#logback输出日志配置 
    logging:
      config: classpath:logback-spring.xml
    #  控制屏蔽对应包的日志打印
    #  level:
    #   com.springboot.sixmonth.controller: 'off'

### 总结 ###

实践是检验认识真理性的唯一标准，自己动手，丰衣足食~