springboot2.x只需两步快速整合log4j2的方法

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

<exclusions>
 <exclusion>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-logging</artifactId>
 </exclusion>
</exclusions>

logging.config=classpath:log4j2.xml

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="DEBUG">  
    <Appenders>  
        <!--添加一个控制台追加器-->  
        <Console name="Console" target="SYSTEM_OUT" follow="true">  
            <PatternLayout>  
                <pattern>[%-5p] %d %c - %m%n</pattern>  
            </PatternLayout>  
        </Console>  
        <!--添加一个文本追加器，文件位于根目录下，名为log.log-->  
        <File name="File" fileName="logs/log.log">  
            <PatternLayout>  
                <pattern>[%-5p] %d %c - %m%n</pattern>  
            </PatternLayout>  
        </File>  
    </Appenders>  
    <Loggers>  
        <Root level="DEBUG">  
            <AppenderRef ref="Console" />  
        </Root>  
　　　　<!--把org.springframework包下的所有日志输出到log文件，additivity="false"表示不输出到控制台-->
        <Logger name="org.springframework" level="DEBUG" additivity="true">    
            <AppenderRef ref="File" />  
        </Logger>    
    </Loggers>  
</Configuration>