MyBatis-Plus 🚀 为简化开发而生 (baomidou.com)

1.配置pom.xml

 <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-spring-boot3-starter</artifactId>
            <version>3.5.7</version>
 </dependency>

2.重新加载maven