菜品分页查询

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

@@ -1,15 +1,14 @@
 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 io.swagger.annotations.Api;
 import io.swagger.annotations.ApiOperation;
 import lombok.extern.slf4j.Slf4j;
-import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.*;
-import org.springframework.web.bind.annotation.RequestBody;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
 
 import javax.annotation.Resource;
 
@@ -29,9 +28,17 @@ public class DishController {
      */
     @ApiOperation("新增菜品")
     @PostMapping("")
-    public Result<String > save(@RequestBody DishDTO dishDTO) {
+    public Result<String> save(@RequestBody DishDTO dishDTO) {
         log.info("新增菜品:{}", dishDTO);
         dishService.saveWithFlavor(dishDTO);
         return Result.success();
     }
+
+    @ApiOperation("菜品分页查询")
+    @GetMapping("/page")
+    public Result<PageResult> pageResultResult(DishPageQueryDTO dishPageQueryDTO) {
+        log.info("菜品分页查询:{}", dishPageQueryDTO);
+        PageResult pageResult = dishService.pageQuery(dishPageQueryDTO);
+        return Result.success(pageResult);
+    }
 }

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

@@ -1,8 +1,11 @@
 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;
 
@@ -24,4 +27,11 @@ public interface DishMapper {
      */
     @AutoFill(value = OperationType.INSERT)
     void insert(Dish dish);
+
+    /**
+     * 菜品分页查询
+     * @param dishPageQueryDTO DishPageQueryDTO
+     * @return Page<DishVO>
+     */
+    Page<DishVO> pageQuery(DishPageQueryDTO dishPageQueryDTO);
 }

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

@@ -1,6 +1,8 @@
 package com.sky.service;
 
 import com.sky.dto.DishDTO;
+import com.sky.dto.DishPageQueryDTO;
+import com.sky.result.PageResult;
 
 public interface DishService {
     /**
@@ -9,4 +11,11 @@ public interface DishService {
      * @param dishDTO DishDTO
      */
     void saveWithFlavor(DishDTO dishDTO);
+
+    /**
+     * 菜品分页查询
+     * @param dishPageQueryDTO DishPageQueryDTO
+     * @return PageResult
+     */
+    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.stereotype.Service;
@@ -46,4 +51,16 @@ public class DishServiceImpl implements DishService {
             dishFlavorMapper.insertBatch(flavors);
         }
     }
+
+    /**
+     * 菜品分页查询
+     * @param dishPageQueryDTO DishPageQueryDTO
+     * @return PageResult
+     */
+    @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

@@ -11,9 +11,28 @@
     </insert>
 
     <!-- 根据分类id查询菜品数量 -->
-    <select id="countByCategoryId" resultType="java.lang.Integer" >
+    <select id="countByCategoryId" resultType="java.lang.Integer">
         select count(id)
         from dish
         where category_id = #{categoryId}
     </select>
+
+    <!-- 菜品分页查询 -->
+    <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>