mvn解决依赖冲突问题exclusions

拼搏现实的明天。 2022-04-03 12:30 323阅读 0赞

如下问题，slf4j发生多个地方引入，由于我是新增一个依赖时发生该问题，所以相对容易找到问题所在，直接在依赖添加了排除，clean下，重新运行即可。所以解决该问题需要你事先知道引入的依赖包是否包含了重复包，出现重复包时，需要手动加入排除依赖功能。
    
    SLF4J: Class path contains multiple SLF4J bindings.
    SLF4J: Found binding in [jar:file:/C:/Users/Administrator/.m2/repository/org/slf4j/slf4j-log4j12/1.7.25/slf4j-log4j12-1.7.25.jar!/org/slf4j/impl/StaticLoggerBinder.class]
    SLF4J: Found binding in [jar:file:/C:/Users/Administrator/.m2/repository/ch/qos/logback/logback-classic/1.2.3/logback-classic-1.2.3.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 [org.slf4j.impl.Log4jLoggerFactory]
    
    
    <exclusions>
         <exclusion>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-log4j12</artifactId>
      </exclusion>
    </exclusions>

具体位置如下：

<dependency>
        <groupId>xxx</groupId>
        <artifactId>xxx</artifactId>
        <version>xxxxx</version>
        
        <exclusions>
             <exclusion>
                 <groupId>org.slf4j</groupId>
                 <artifactId>slf4j-log4j12</artifactId>
          </exclusion>
        </exclusions>
    </dependency>

网上有一种解决tomcat日志包冲突，采用添加<scope>provided</scope>，因为provided表明该包只在编译和测试的时候使用。这种方式会导致新引入的包在运行时报错。

参考：[https://stackoverflow.com/questions/22896243/maven-slf4j-class-path-contains-multiple-slf4j-bindings][https_stackoverflow.com_questions_22896243_maven-slf4j-class-path-contains-multiple-slf4j-bindings]

[https_stackoverflow.com_questions_22896243_maven-slf4j-class-path-contains-multiple-slf4j-bindings]: https://stackoverflow.com/questions/22896243/maven-slf4j-class-path-contains-multiple-slf4j-bindings