大事件项目记录8-文章分类接口开发-新增文章分类

一、新增文章分类。

        新建分类模块接口CategoryController.java：

@RestController
@RequestMapping("/category")
public class CategoryController {

    @Autowired
    private CategoryService categoryService;

    @PostMapping
    public Result add(@RequestBody @Validated Category category){
        categoryService.add(category);
        return Result.success();
    }
}

        CategoryService：

        CategoryServiceInterface.java：

@Service
public class CategoryServiceInterface implements CategoryService {

    @Autowired
    private CategoryMapper categoryMapper;

    @Override
    public void add(Category category) {

        //补充属性值
        category.setCreateTime(LocalDateTime.now());
        category.setUpdateTime(LocalDateTime.now());

        Map<String,Object> map = ThreadLocalUtil.get();
        Integer userId = (Integer) map.get("id");
        category.setCreateUser(userId);
        categoryMapper.add(category);
    }
}

        CategoryMapper.java:

@Mapper
public interface CategoryMapper {
    //新增
    @Insert("insert into category(category_name,category_alias,create_user,create_time,update_time)" +
            "values(#{categoryName},#{categoryAlias},#{createUser},#{createTime},#{createTime}) ")
    void add(Category category);
}

         使用Postman运行测试：

另外，需要在实体类里添加参数校验的相关注解：