Mybatis-Plus 基础配置

1.Service接口，继承IService指定实体泛型

@Service
public interface UserService extends IService<User> {

}

2.Impl实现类，继承ServiceImpl，指定泛型操作 Mapper和实体

@Service
public class UserServiceImpl extends ServiceImpl<UserMapper, User> implements UserService {

3.自定义Mapper,继承BaseMapper指定实体泛型

@Mapper
public interface UserMapper extends BaseMapper<User> {