使用log4j2出现bug：Class path contains multiple SLF4J bindings.

场景：使用slf4j+log4j2做日志
bug描述：存在多个日志实现

SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/E:/space/MavenRepository/maven_jar/ch/qos/logback/logback-classic/1.2.10/logback-classic-1.2.10.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/E:/space/MavenRepository/maven_jar/org/apache/logging/log4j/log4j-slf4j-impl/2.17.1/log4j-slf4j-impl-2.17.1.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [ch.qos.logback.classic.util.ContextSelectorStaticBinder]

翻译：日志实现的绑定有两个，我本人想用log4j2，所以exclusion掉logback-classic就行。
做法：使用maven工具，找到logback-classic依赖在哪里导入的，然后在exclusion。
一，Maven依赖图

二，ctrl+F，输入logback-classic，找logback-classic依赖，双击点进去

三，依赖传递：spring-boot-starter下spring-boot-starter-logging下logback-classic


那就知道了怎么做了，导入spring-boot-starter然后exclusion掉logback-classic.
在pom.xml中日志依赖部分：

            org.springframework.boot
            spring-boot-starter
            
                
                    org.springframework.boot
                    spring-boot-starter-logging
                
                
                    ch.qos.logback
                    logback-classic
                
            
        
     
        
            org.slf4j
            slf4j-api
            1.7.33
        

        
            org.springframework.boot
            spring-boot-starter-log4j2
            2.6.3
        
        

log4j2测试成功