SLF4J: Class path contains multiple SLF4J bindings.

本是古典何须时尚 2023-10-04 09:22 4阅读 0赞

> **控制台信息**：
> 
> SLF4J: Class path contains multiple SLF4J bindings.  
> 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: Found binding in \[jar:file:/C:/Users/Administrator/.m2/repository/org/slf4j/slf4j-log4j12/1.7.30/slf4j-log4j12-1.7.30.jar!/org/slf4j/impl/StaticLoggerBinder.class\]  
> SLF4J: See http://www.slf4j.org/codes.html\#multiple\_bindings for an explanation.  
>

**原因：**

`logback-classic` 包和`slf4j-log4j12` 包，关于`org/slf4j/impl/StaticLoggerBinder.class` 这个类发生了冲突。其实就是logback和log4j之间的冲突。

**解决**：

排除其中一个的依赖  
如果使用的是log4j的日志，则只需排除logback的依赖即可。在spring-boot-starter 和 spring-boot-starter-web两个依赖中添加如下内容，排除logback依赖

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