SpringBoot企业级开发之【文章分类-新增文章分类】

news2025/4/22 9:47:57

看一下新增文章的需求：

接口文档：

开发思路：

先在controller下去创建add方法，方法内导入Service类获取add的结果；再在Service接口下去创建add的方法；然后在Service实现类下去实现方法的作用，且导入Mapper类去执行要对数据库执行的操作。

实操：

1.controller

先创建在controller包下去创建属于分类的controller类

package org.huangyingyuan.controller;

import org.huangyingyuan.pojo.Category;
import org.huangyingyuan.pojo.Result;
import org.huangyingyuan.service.CategoryService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;


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

    @Autowired
    private CategoryService categoryService;

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

2.Service接口

package org.huangyingyuan.service;

import org.huangyingyuan.pojo.Category;
import org.springframework.stereotype.Service;

@Service
public interface CategoryService {
    // 新增分类
    void add(Category category);
}

3.ServiceImpl

package org.huangyingyuan.service.impl;


import org.huangyingyuan.mapper.CategoryMapper;
import org.huangyingyuan.pojo.Category;
import org.huangyingyuan.service.CategoryService;
import org.huangyingyuan.utils.ThreadLocalUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.time.LocalDateTime;
import java.util.Map;

@Service
public class CategoryServiceIpml implements CategoryService {

    @Autowired
    private CategoryMapper categoryMapper;

    @Override
    public void add(Category category) {
        //新增属性值
        category.setCreate_time(LocalDateTime.now());
        category.setUpdate_time(LocalDateTime.now());
        //获取id
        Map<String,Object> map=ThreadLocalUtil.get();
        Integer id=(Integer)map.get("id");
        category.setCreate_user(id);
        categoryMapper.add(category);
    }
}

4.Mapper

package org.huangyingyuan.mapper;

import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.huangyingyuan.pojo.Category;

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