用下下面的依赖试一下？
```xml
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-boot-starter</artifactId>
<version>3.5.6</version>
<exclusions>
<exclusion>
<artifactId>mybatis-spring</artifactId>
<groupId>org.mybatis</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>3.0.3</version>
</dependency>
```