springboot中使用log4j2

1. 安装依赖pom.xml

<!--排除logback的依赖-->
<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter</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>

2. 添加log4j2.xml文件
   src\main\resources\log4j2.xml

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="WARN"><Appenders><!-- 控制台输出 --><Console name="Console" target="SYSTEM_OUT"><PatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/></Console><!-- 文件输出 --><File name="File" fileName="logs/app.log"><PatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/></File></Appenders><Loggers><!-- Root Logger --><Root level="info"><AppenderRef ref="Console"/><AppenderRef ref="File"/></Root><!-- 自定义 Logger --><Logger name="com.example" level="debug" additivity="false"><AppenderRef ref="Console"/></Logger></Loggers>
</Configuration>

3. controller中使用

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;private static final Logger logger = LogManager.getLogger(MyRestController.class);// 日志记录
logger.debug("This is a debug message");
logger.info("This is an info message");
logger.warn("This is a warn message");
logger.error("This is an error message");