菜品分页查询

---

DishController

/**
 * 菜品分页查询
 *
 * @param dishPageQueryDTO
 * @return
 */
@GetMapping("/page")
@ApiOperation("菜品分页查询")
public Result<PageResult> page(DishPageQueryDTO dishPageQueryDTO) {
    log.info("菜品分页查询:{}", dishPageQueryDTO);
    PageResult pageResult = dishService.pageQuery(dishPageQueryDTO);//后绪步骤定义
    return Result.success(pageResult);
}

DishService

	/**
     * 菜品分页查询
     *
     * @param dishPageQueryDTO
     * @return
     */
    PageResult pageQuery(DishPageQueryDTO dishPageQueryDTO);

DishServiceImpl

	/**
     * 菜品分页查询
     *
     * @param dishPageQueryDTO
     * @return
     */
    public PageResult pageQuery(DishPageQueryDTO dishPageQueryDTO) {
        PageHelper.startPage(dishPageQueryDTO.getPage(), dishPageQueryDTO.getPageSize());
        Page<DishVO> page = dishMapper.pageQuery(dishPageQueryDTO);//后绪步骤实现
        return new PageResult(page.getTotal(), page.getResult());
    }

DishMapper

	/**
     * 菜品分页查询
     *
     * @param dishPageQueryDTO
     * @return
     */
    Page<DishVO> pageQuery(DishPageQueryDTO dishPageQueryDTO);

DishMapper.xml

<select id="pageQuery" resultType="com.sky.vo.DishVO">
        select d.* , c.name as categoryName from dish d left outer join category c on d.category_id = c.id
        <where>
            <if test="name != null">
                and d.name like concat('%',#{name},'%')
            </if>
            <if test="categoryId != null">
                and d.category_id = #{categoryId}
            </if>
            <if test="status != null">
                and d.status = #{status}
            </if>
        </where>
        order by d.create_time desc
</select>