springboot2.x+log4j2(springboot2.x整合log4j2日志日志 包冲突问题解决)

在学习springboot整合mybatis和log4j2日志途中遇到以下问题，在网上也搜索好多最终解决；本次主要记录整合log4j2日解决一次报错的记录。

一、引入log4j2日志jar包

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

二、启动项目时报错内容：

SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/D:/Program%20Files/apache-maven-3.3.9/repository/ch/qos/logback/logback-classic/1.2.3/logback-classic-1.2.3.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/D:/Program%20Files/apache-maven-3.3.9/repository/org/apache/logging/log4j/log4j-slf4j-impl/2.12.1/log4j-slf4j-impl-2.12.1.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]
Logging system failed to initialize using configuration from 'classpath:common/log4j2.xml'
java.lang.IllegalStateException: Logback configuration error detected: 
ERROR in ch.qos.logback.core.joran.spi.Interpreter@6:17 - no applicable action for [Properties], current ElementPath  is [[configuration][Properties]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@7:34 - no applicable action for [Property], current ElementPath  is [[configuration][Properties][Property]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@8:38 - no applicable action for [Property], current ElementPath  is [[configuration][Properties][Property]]er

三、解决办法:

<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>

从spring-boot-starter-web包中排除内嵌日志包，然后看下

刷新maven  jar看这两个包是否消失，如果没有消失说明还有其他包没有排除，由于我整合mybatis,所以发现

<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>2.0.1</version>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>

这个jar包里也需要排除，最后发现消失；然后运行成功。如果大伙遇到类似问题可以一个这样排查解决！

参考以下解决办法：https://www.cnblogs.com/Anxc/p/12604521.html