@Slf4j实现多线程场景下每个线程日志独立输出

1.配置logbak-spring.xml

<?xml version="1.0" encoding="UTF-8"?>
<configuration scan="true" scanPeriod="5 seconds">

    <!-- 定义日志文件的存储路径 -->
    <property name="LOGS_PATH" value="./logs/" />
    <timestamp key="datetime" datePattern="yyyy-MM-dd"/>
    <springProperty scope="context" name="APP_NAME" source="com.appName" defaultValue="LOG"/>

    <!--0. 日志格式和颜色渲染 -->
    <!-- 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}}"/>

    <!-- 控制台日志输出 -->
    <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>%date %-5level [%replace(%thread){'DubboServerHandler-','Dubbo'}] %logger{35}[%L] - %msg%n</pattern>
        </encoder>
    </appender>

    <!-- 使用 MDC 的 appender 核心！！！-->
    <appender name="FILE" class="ch.qos.logback.classic.sift.SiftingAppender">
        <discriminator>
            <key>threadName</key>
            <defaultValue>main</defaultValue>
        </discriminator>
        <sift>
            <appender name="FILE-${threadName}" class="ch.qos.logback.core.rolling.RollingFileAppender">
                <encoder>
                    <Encoding>UTF-8</Encoding>
                    <pattern>%date %-5level [%replace(%thread){'DubboServerHandler-','Dubbo'}] %logger{35}[%L] - %msg%n</pattern>
                </encoder>
                <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
                    <!--日志文件名称格式-->
                    <fileNamePattern>${LOGS_PATH}%d{yyyyMMdd}/${threadName}-%d{yyyy-MM-dd}.%i.log</fileNamePattern>
                    <!-- 日志文件保留30天 -->
                    <maxHistory>30</maxHistory>
                    <!--单文件大小-->
                    <maxFileSize>100MB</maxFileSize>
                    <totalSizeCap>10GB</totalSizeCap>
                </rollingPolicy>
            </appender>
        </sift>
    </appender>

    <root level="info">
        <appender-ref ref="CONSOLE" />
        <appender-ref ref="FILE" />
    </root>

</configuration>

2.在方法中使用MDC

MDC.put("threadName", "yourName");
//具体业务代码
MDC.remove("threadName")

注意：threadName和xml文件中的<discriminator>标签中的<key>一致；

3.运行代码，即可得到同一项目的日志分离如以下结果：