springboot log4j2日志框架整合与使用过程解析

<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>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-log4j2</artifactId>
</dependency>

<dependency>
    <groupId>net.sf.dozer</groupId>
    <artifactId>dozer</artifactId>
    <version>5.4.0</version>
    <exclusions>
        <exclusion>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
        </exclusion>
    </exclusions>
</dependency>

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <properties>
        <!--日志输出位置-->
        <property name="LOG_HOME">D:/logs</property>
    </properties>

    <Appenders>
        <!-- 将日志输出到控制台-->
        <Console name="CONSOLE" target="SYSTEM_OUT">
            <!--设置日志格式及颜色-->
            <PatternLayout
                    pattern="[%style{%d}{bright,green}][%highlight{%p}][%style{%t}{bright,blue}][%style{%C}{bright,yellow}]: %msg%n%style{%throwable}{red}"
                    disableAnsi="false" noConsoleNoAnsi="false"/>
        </Console>

        <!-- 将日志输出到文件-->
        <RollingFile name="FILE-APPENDER"
                     fileName="${LOG_HOME}/log4j2-demo.log"
                     filePattern="${LOG_HOME}/log4j2-demo-%d{yyyy-MM-dd}-%i.log">
            <!--设置日志格式-->
            <PatternLayout>
                <pattern>[%d][%p][%t][%C] %m%n</pattern>
            </PatternLayout>
            <Policies>
                <!-- 设置日志文件切分参数 -->
                <SizeBasedTriggeringPolicy size="100 MB"/>
                <TimeBasedTriggeringPolicy/>
            </Policies>
            <!--设置最大存档数-->
            <DefaultRolloverStrategy max="20"/>
        </RollingFile>
    </Appenders>

    <Loggers>
        <!-- 根日志设置 -->
        <Root level="debug">
            <AppenderRef ref="CONSOLE" level="debug"/>
            <AppenderRef ref="FILE-APPENDER" level="info"/>
        </Root>

        <!--spring日志-->
        <Logger name="org.springframework" level="info"/>
        <!-- mybatis日志 -->
        <Logger name="com.mybatis" level="warn"/>
    </Loggers>
</configuration>

logging:
    config: classpath:log4j2-dev.xml

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@RestController
public class LogTestController {
    private static final Logger logger = LoggerFactory.getLogger(LogTestController.class);
    @GetMapping("/testlog")
    public void test(){
        logger.trace("Trace 日志...");
        logger.debug("Debug 日志...");
        logger.info("Info 日志...");
        logger.warn("Warn 日志...");
        logger.error("Error 日志...");
    }
}

<PatternLayout pattern="[%style{%d}{bright,green}][%highlight{%p}][%style{%t}{bright,blue}][%style{%C}{bright,yellow}]: %msg%n%style{%throwable}{red}"
                    disableAnsi="false" noConsoleNoAnsi="false"/>