springboot中配置logback+slf4j

1.引入依赖
Spring Boot 默认的日志框架 Logback+SLF4J，不需要在引入依赖

2.配置文件logback-spring.xml

<?xml version="1.0" encoding="UTF-8"?>
<configuration debug="false" scan = "true">
    <!-- 日志输出目录，前缀：/logs/order/【***】   后面填写项目名称 -->
    <property name="LOG_HOME" value="/usr/logs/ibp/sm" />
    <property name="PATTERN_LAYOUT"
              value="%d %-5level %logger %line - %msg%n" />
    <!-- 最大保存天数-->
    <property name="maxHistory" value="15"/>

    <!-- 彩色日志 控制台 -->
    <!-- 彩色日志依赖的渲染类 -->
    <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" />
    <!-- 彩色日志格式 -->
    <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}}"/>
    <!--普通日志格式-->
    <property name="NORMAL_PATTERN" value="%date [%level] [%thread] %logger{60} [%file : %line] %msg%n" />


    <appender name="stdout" class="ch.qos.logback.core.ConsoleAppender">
        <!-- 日志输出编码 -->
        <encoder>
            <!--格式化输出：%d表示日期，%thread表示线程名，%-5level：级别从左显示5个字符宽度%msg：日志消息，%n是换行符-->
            <pattern>${CONSOLE_LOG_PATTERN}</pattern>
            <charset>UTF-8</charset>
        </encoder>
    </appender>

    <appender name="file-debug" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${LOG_HOME}/debug.log</file>
        <!-- 日志记录器的滚动策略，按日期，按大小记录 -->
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <!--日志归档-->
            <FileNamePattern>${LOG_HOME}/debug-%d{yyyy-MM-dd}%i.log</FileNamePattern>
            <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                <maxFileSize>30MB</maxFileSize>
            </timeBasedFileNamingAndTriggeringPolicy>
            <!--日志文件保留天数 -->
            <MaxHistory>${maxHistory}</MaxHistory>
        </rollingPolicy>
        <encoder charset="UTF-8">
            <pattern>${PATTERN_LAYOUT}</pattern>
        </encoder>
        <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
            <level>DEBUG</level>
        </filter>
    </appender>

    <appender name="file-info" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${LOG_HOME}/info.log</file>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <!--日志文件输出的文件名 -->
            <FileNamePattern>${LOG_HOME}/info.%d{yyyy-MM-dd}.log</FileNamePattern>
            <!--日志文件保留天数 -->
            <MaxHistory>${maxHistory}</MaxHistory>
        </rollingPolicy>
        <encoder charset="UTF-8">
            <pattern>${PATTERN_LAYOUT}</pattern>
        </encoder>
        <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
            <level>INFO</level>
        </filter>
    </appender>

    <appender name="file-error" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${LOG_HOME}/error.log</file>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <!--日志文件输出的文件名 -->
            <FileNamePattern>${LOG_HOME}/error.%d{yyyy-MM-dd}.log</FileNamePattern>
            <!--日志文件保留天数 -->
            <MaxHistory>${maxHistory}</MaxHistory>
        </rollingPolicy>
        <encoder charset="UTF-8">
            <pattern>${PATTERN_LAYOUT}</pattern>
        </encoder>
        <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
            <level>ERROR</level>
        </filter>
    </appender>

    <appender name="async-file" class="ch.qos.logback.classic.AsyncAppender">
        <discardingThreshold>0</discardingThreshold>
        <queueSize>1000</queueSize>
        <appender-ref ref="file-debug" />
    </appender>

    <!-- 打印sql的日志，name的值为 dao包所在的路径-->
    <logger name="com.coship" level="DEBUG" />

    <logger name="dao" level="DEBUG" />

    <root level="INFO">
        <appender-ref ref="stdout"/>

        <!-- 开发阶段可以屏蔽，生产环境打印输出到文件-->
        <appender-ref ref="file-debug" />
        <appender-ref ref="file-info" />
        <appender-ref ref="file-error" />
    </root>

</configuration>