Spring boot logback的使用（日志记录）

1 在spring boot中已经自动包含了logback的jar包，如果不是spring boot需要在maven中导入依赖

<dependency>
    <groupId>ch.qos.logbackgroupId>
    <artifactId>logback-classicartifactId>
    <version>1.2.3version>
dependency>

2 配置logback的xml

<configuration scan="true" scanPeriod="10 seconds">

    

    <include resource="org/springframework/boot/logging/logback/base.xml"/>
    
    <property name="LOG_PATH" value="app-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>
            <pattern>${CONSOLE_LOG_PATTERN}pattern>
            <charset>utf8charset>
        encoder>
    appender>



    <appender name="DEBUG_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        
        <filter class="ch.qos.logback.classic.filter.LevelFilter">
            <level>DEBUGlevel>
            <onMatch>ACCEPTonMatch>
            <onMismatch>DENYonMismatch>
        filter>

        <File>${LOG_PATH}/debug.logFile>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            
            <fileNamePattern>${LOG_PATH}/debug-%d{yyyyMMdd}.%i.log
            fileNamePattern>
            
            <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                <maxFileSize>10MBmaxFileSize>
            timeBasedFileNamingAndTriggeringPolicy>
            
            <maxHistory>15maxHistory>
        rollingPolicy>
        <layout class="ch.qos.logback.classic.PatternLayout">
            
            <Pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} -%msg%n%n
            Pattern>
        layout>
    appender>

    <appender name="INFO_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <filter class="ch.qos.logback.classic.filter.LevelFilter">
            <level>INFOlevel>
            <onMatch>ACCEPTonMatch>
            <onMismatch>DENYonMismatch>
        filter>
        <File>${LOG_PATH}/info.logFile>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <fileNamePattern>${LOG_PATH}/info-%d{yyyyMMdd}.%i.log
            fileNamePattern>
            <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                <maxFileSize>10MBmaxFileSize>
            timeBasedFileNamingAndTriggeringPolicy>
            <maxHistory>15maxHistory>
        rollingPolicy>
        <layout class="ch.qos.logback.classic.PatternLayout">
            <Pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} -%msg%n%n
            Pattern>
        layout>
    appender>

    <appender name="ERROR_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
            <level>ERRORlevel>
        filter>
        <File>${LOG_PATH}/error.logFile>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <fileNamePattern>${LOG_PATH}/error-%d{yyyyMMdd}.%i.log
            fileNamePattern>
            <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                <maxFileSize>10MBmaxFileSize>
            timeBasedFileNamingAndTriggeringPolicy>
            <maxHistory>15maxHistory>
        rollingPolicy>
        <layout class="ch.qos.logback.classic.PatternLayout">
            <Pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} -%msg%n%rootException{1}%n%n
            Pattern>
        layout>
    appender>

    <appender name="console" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} %clr(%-5level) %logger{16} %msg%n%rootException{1}pattern>
        encoder>
    appender>

    <logger name="com" level="DEBUG" additivity="false">
        <appender-ref ref="DEBUG_FILE"/>
        <appender-ref ref="INFO_FILE"/>
        <appender-ref ref="ERROR_FILE"/>
        <appender-ref ref="console"/>
    logger>

    <root level="INFO">
        <appender-ref ref="INFO_FILE"/>
        <appender-ref ref="ERROR_FILE"/>
    root>

    
    
configuration>

3 在application.properties 中加入此配置文件

# log
logging.config=classpath:logback.xml