一 添加依赖

        <!--移除spring-boot中默认的logback日志组件-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-starter-logging</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <!--依赖log4j2组件-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-log4j2</artifactId>
        </dependency>
        <dependency>
            <groupId>com.lmax</groupId>
            <artifactId>disruptor</artifactId>
            <version>3.4.4</version>
        </dependency>
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-spring-boot</artifactId>
        </dependency>
        <!--支持slf4j日志api-->
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>log4j-over-slf4j</artifactId>
        </dependency>

二 log4j2.xml日志模板

<?xml version="1.0" encoding="UTF-8" ?>
<Configuration name="XMLCommonLog" status="WARN" strict="true" packages="io.opentelemetry.instrumentation.log4j.appender.v2_17">
    <Properties>
        <Property name="application.name" >log4jDemo</Property>
<!--        <Property name="user.home" >/test/service</Property>-->
<!--        <Property name="application.name" >${spring:spring.application.name}</Property>-->
<!--        <Property name="user.home" >${spring:user.home}</Property>-->
        <Property name="user.home" >I:/springBoot/log4jDemo</Property>
        <Property name="LOG_PATH" value="${user.home}/logs/${application.name}" />
        <Property name="LOG_PATTERN" value="%d{yyyy-MM-dd HH:mm:ss.SSS} %-5level [%X{trace_id}] [%t] %C{1.}.%M:%L - %msg%n" />
        <Property name="TRACING_PATTERN" value="%d{yyyy-MM-dd HH:mm:ss.SSS} %-5level [%X{trace_id}] [%t] %C{1.}.%M:%L - %msg%n" />
    </Properties>

    <Appenders>
        <RollingFile name="WARN" fileName="${LOG_PATH}/warn.log" filePattern="${LOG_PATH}/warn-%d{yyyy-MM-dd}-%i.log"
            immediateFlush="false">
            <PatternLayout pattern="${TRACING_PATTERN}" />
            <LevelRangeFilter minLevel="WARN" maxLevel="WARN" />
            <Policies>
                <!--基于文件大小的滚动策略-->
                <SizeBasedTriggeringPolicy size="500MB" />
                <TimeBasedTriggeringPolicy interval="1" />
            </Policies>
            <!--同一天内日志文件策略只保留7个-->
            <DefaultRolloverStrategy max="7">
                <!--制定策略保留7天内的日志文件-->
                <Delete basePath="${LOG_PATH}" maxDepth="1">
                    <IfFileName glob="*.log" />
                    <IfLastModified age="7d" />
                </Delete>
            </DefaultRolloverStrategy>
        </RollingFile>

        <RollingFile name="ERROR" fileName="${LOG_PATH}/error.log" filePattern="${LOG_PATH}/error-%d{yyyy-MM-dd}-%i.log"
            immediateFlush="false">
            <PatternLayout pattern="${TRACING_PATTERN}" />
            <ThresholdFilter level="ERROR" onMatch="ACCEPT" onMismatch="DENY" />
            <Policies>
                <SizeBasedTriggeringPolicy size="500MB" />
                <TimeBasedTriggeringPolicy interval="1" />
            </Policies>
            <DefaultRolloverStrategy max="7">
                <Delete basePath="${LOG_PATH}" maxDepth="1">
                    <IfFileName glob="*.log" />
                    <IfLastModified age="7d" />
                </Delete>
            </DefaultRolloverStrategy>
        </RollingFile>

        <Console name="CONSOLE" target="SYSTEM_OUT">
            <PatternLayout pattern="${LOG_PATTERN}"/>
        </Console>
        <RollingFile name="INFO" fileName="${LOG_PATH}/info.log" filePattern="${LOG_PATH}/info-%d{yyyy-MM-dd}-%i.log"
            immediateFlush="false">
            <PatternLayout pattern="${TRACING_PATTERN}" />
            <LevelRangeFilter minLevel="INFO" maxLevel="INFO"/>
            <Policies>
                <SizeBasedTriggeringPolicy size="500MB" />
                <TimeBasedTriggeringPolicy interval="1" />
            </Policies>
            <DefaultRolloverStrategy max="7">
                <Delete basePath="${LOG_PATH}" maxDepth="1">
                    <IfFileName glob="*.log" />
                    <IfLastModified age="7d" />
                </Delete>
            </DefaultRolloverStrategy>
        </RollingFile>
    </Appenders>

    <loggers>
        <!-- 这里采用log4j2的异步日志输出方式，来提高性能 -->
        <AsyncRoot level="info" includeLocation="true">
            <AppenderRef ref="CONSOLE"/>
            <AppenderRef ref="INFO" />
            <AppenderRef ref="WARN" />
            <AppenderRef ref="ERROR" />
        </AsyncRoot>
    </loggers>
</Configuration>

添加log4j2.component.properties配置文件

# 当日志没有时，添加Block来避免CPU空转
AsyncLoggerConfig.WaitStrategy=Block
AsyncLoggerConfig.SynchronizeEnqueueWhenQueueFull=false

三配置日志

代码地址

Log4j2的Policies详解
Log4j2的DefaultRolloverStrategy详解