Springboot + log4j

pom

<dependency>
    <groupId>org.springframework.boot</groupId>  
    <artifactId>spring-boot-starter-log4j2</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
    <version>2.1.6.RELEASE</version>
    <!-- 去掉springboot默认配置 -->  
    <exclusions>
        <exclusion>  
            <groupId>org.springframework.boot</groupId>  
            <artifactId>spring-boot-starter-logging</artifactId>  
        </exclusion>  
    </exclusions>  
</dependency>

application.yml

logging:
  config: classpath:log4j2.xml

Test.java

private final Logger logger = LogManager.getLogger(this.getClass());
// public static final Logger LOGGER =  LogManager.getLogger(LogManager.ROOT_LOGGER_NAME);
@GetMapping("/log")
@ResponseBody
public String logTest(){
    for(int i=0;i<10;i++){
        logger.info("info message");
        logger.warn("warn message");
        logger.error("error message");
    }
    return "My First SpringBoot Application";
}

log4j2.xml

<!-- log4j2.xml -->
<?xml version="1.0" encoding="UTF-8"?>
<configuration status="warn">
    <Properties>
        <!-- 日志存储路径 -->
        <Property name="baseDir">./logs</Property>
    </Properties>
    <Appenders>
        <Console name="console" target="SYSTEM_OUT">
            <PatternLayout charset="UTF-8" pattern="[%-5p] [%d{HH:mm:ss}] %c - %m%n" />
        </Console>
        <!--Info级别日志输出-->
        <RollingFile name="system-info"
                     fileName="${baseDir}/info.log"
                     filePattern="${baseDir}/$${date:yyyy-MM}/info-%d{yyyy-MM-dd}-%i.log.gz">
            <Filters>
                <ThresholdFilter level="warn" onMatch="DENY" onMismatch="NEUTRAL"/>
                <ThresholdFilter level="info"/>
            </Filters>
            <PatternLayout charset="UTF-8" pattern="[%d{yyyy/MM/dd HH:mm:ssSSS}][%p][日志系统][%l]%n%m%n" />
            <Policies>
                <!-- 归档每天的文件 -->
                <TimeBasedTriggeringPolicy interval="1" modulate="true" />
                <!-- 限制单个文件大小 -->
                <SizeBasedTriggeringPolicy size="10 MB" />
            </Policies>
            <!-- 限制每天文件个数 -->
            <DefaultRolloverStrategy compressionLevel="0" max="50"/>
        </RollingFile>
        <!-- WARN 级别日志输出-->
        <RollingFile name="system-warn"
                     fileName="${baseDir}/warn.log" filePattern="${baseDir}/$${date:yyyy-MM}/warn-%d{yyyy-MM-dd}-%i.log.gz">
            <Filters>
                <ThresholdFilter level="error" onMatch="DENY" onMismatch="NEUTRAL"/>
                <ThresholdFilter level="warn"/>
            </Filters>
            <PatternLayout charset="UTF-8" pattern="[%d{yyyy/MM/dd HH:mm:ssSSS}][%p][日志系统][%l]%n%m%n" />
            <Policies>
                <!-- 归档每天的文件 -->
                <TimeBasedTriggeringPolicy interval="1" modulate="true" />
                <!-- 限制单个文件大小 -->
                <SizeBasedTriggeringPolicy size="10 MB" />
            </Policies>
            <!-- 限制每天文件个数 -->
            <DefaultRolloverStrategy compressionLevel="0" max="50"/>
        </RollingFile>
        <!--Error级别日志输出-->
        <RollingFile name="system-error"
                     fileName="${baseDir}/error.log" filePattern="${baseDir}/$${date:yyyy-MM}/error-%d{yyyy-MM-dd}-%i.log.gz">
            <Filters>
                <ThresholdFilter level="error"/>
            </Filters>
            <PatternLayout charset="UTF-8" pattern="[%d{yyyy/MM/dd HH:mm:ssSSS}][%p][日志系统][%l]%n%m%n" />
            <Policies>
                <!-- 归档每天的文件 -->
                <TimeBasedTriggeringPolicy interval="1" modulate="true" />
                <!-- 限制单个文件大小 -->
                <SizeBasedTriggeringPolicy size="10 MB" />
            </Policies>
            <!-- 限制每天文件个数 -->
            <DefaultRolloverStrategy compressionLevel="0" max="50"/>
        </RollingFile>
    </Appenders>
    <Loggers>
        <root level="INFO">
            <appender-ref ref="console" />
            <appender-ref ref="system-info" />
            <appender-ref ref="system-warn" />
            <appender-ref ref="system-error" />
        </root>
    </Loggers>
</configuration>