//1.引用MP maven
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-boot-starter</artifactId>
<version>3.4.0</version>
</dependency>
//2.创建并继承MP的公用BaseMapper
@Repository
public interface UserMapper extends BaseMapper<User> {
}
//3.创建service并继承MP的公共IService
public interface UserService extends IService<User> {
}
//4.实现serviceImpl 并继承MP的公共 ServiceImpl
public class UserServiceImpl extends ServiceImpl<UserMapper,User> implements UserService {
}
//5.在此 简单的增删改查,我们就可以直接通过MP提供的公共方法,直接在Controller直接调用 @Autowired
private UserService userService;
userService点出方法即可
注意:具体的增删改查方法,IDEA里面用自行查看MP公共的接口方法IService 学习,或者查询MP官网文档