菜品分页查询业务功能开发

sky-server/src/main/java/com/sky/controller/admin/DishController.java

@@ -2,14 +2,13 @@ package com.sky.controller.admin;
 
 
 import com.sky.dto.DishDTO;
+import com.sky.dto.DishPageQueryDTO;
+import com.sky.result.PageResult;
 import com.sky.result.Result;
 import com.sky.service.DishService;
 import lombok.extern.slf4j.Slf4j;
 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;
+import org.springframework.web.bind.annotation.*;
 
 
 /**
@@ -38,4 +37,20 @@ public class DishController {
         dishService.saveWithFlavor(dishDTO);
         return Result.success();
     }
+
+
+
+
+    /**
+     * 菜品管理分页查询
+     *
+     * @param dishPageQueryDTO
+     * @return
+     */
+    @GetMapping("/page")
+    public Result<PageResult> page(DishPageQueryDTO dishPageQueryDTO){
+        log.info("菜品管理分页查询,{}", dishPageQueryDTO);
+        PageResult pageResult=dishService.pageQuery(dishPageQueryDTO);
+        return Result.success(pageResult);
+    }
 }

sky-server/src/main/java/com/sky/mapper/DishMapper.java

@@ -1,9 +1,12 @@
 package com.sky.mapper;
 
 
+import com.github.pagehelper.Page;
 import com.sky.annotation.AutoFill;
+import com.sky.dto.DishPageQueryDTO;
 import com.sky.entity.Dish;
 import com.sky.enumeration.OperationType;
+import com.sky.vo.DishVO;
 import org.apache.ibatis.annotations.Mapper;
 import org.apache.ibatis.annotations.Select;
 
@@ -32,4 +35,11 @@ public interface DishMapper {
      */
     @AutoFill(value = OperationType.INSERT)
     void insert(Dish dish);
+
+    /**
+     * 菜品分页查询
+     * @param dishPageQueryDTO
+     * @return
+     */
+    Page<DishVO> pageQuery(DishPageQueryDTO dishPageQueryDTO);
 }

sky-server/src/main/java/com/sky/service/DishService.java

@@ -1,12 +1,26 @@
 package com.sky.service;
 
 import com.sky.dto.DishDTO;
+import com.sky.dto.DishPageQueryDTO;
+import com.sky.result.PageResult;
 
 public interface DishService {
+
+
     /**
      * 新增菜品和对应的口味
      *
      * @param dishDTO
      */
     void saveWithFlavor(DishDTO dishDTO);
+
+
+
+    /**
+     * 菜品分页查询
+     *
+     * @param dishPageQueryDTO
+     * @return
+     */
+    PageResult pageQuery(DishPageQueryDTO dishPageQueryDTO);
 }

sky-server/src/main/java/com/sky/service/impl/DishServiceImpl.java

@@ -1,11 +1,16 @@
 package com.sky.service.impl;
 
+import com.github.pagehelper.Page;
+import com.github.pagehelper.PageHelper;
 import com.sky.dto.DishDTO;
+import com.sky.dto.DishPageQueryDTO;
 import com.sky.entity.Dish;
 import com.sky.entity.DishFlavor;
 import com.sky.mapper.DishFlavorMapper;
 import com.sky.mapper.DishMapper;
+import com.sky.result.PageResult;
 import com.sky.service.DishService;
+import com.sky.vo.DishVO;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.BeanUtils;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -51,4 +56,20 @@ public class DishServiceImpl implements DishService {
             dishFlavorMapper.insertBatch(dishFlavorList);
         }
     }
+
+
+
+    /**
+     * 菜品分页查询
+     *
+     * @param dishPageQueryDTO
+     * @return
+     */
+    @Override
+    public PageResult pageQuery(DishPageQueryDTO dishPageQueryDTO) {
+        PageHelper.startPage(dishPageQueryDTO.getPage(), dishPageQueryDTO.getPageSize());
+        Page<DishVO> page= dishMapper.pageQuery(dishPageQueryDTO);
+
+        return new PageResult(page.getTotal(),page.getResult());
+    }
 }

sky-server/src/main/resources/mapper/DishMapper.xml

@@ -7,4 +7,36 @@
         insert into dish (name, category_id, price, image, description, create_time, update_time, create_user,update_user, status)
         values (#{name}, #{categoryId}, #{price}, #{image}, #{description}, #{createTime}, #{updateTime}, #{createUser}, #{updateUser}, #{status})
     </insert>
+
+<!--  select * from dish d left join category c on d.category_id = c.id
+    -->
+    <!--<select id="pageQuery" resultType="com.sky.vo.DishVO">
+        select * from category c left join dish d on d.category_id=c.id
+        <where>
+            <if test="name!=null and name !=''">
+                and d.name like concat('%',#{name},'%')
+            </if>
+            <if test="categoryId != null">
+                category_id = #{categoryId}
+            </if>
+        <if test="status != null">
+            status = #{status}
+        </if>
+        </where>
+    </select>-->
+    <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>
 </mapper>