商品列表

src/main/java/com/cxyxiaomo/flashsale/controller/ItemController.java

@@ -11,6 +11,8 @@ import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.*;
 
 import java.math.BigDecimal;
+import java.util.List;
+import java.util.stream.Collectors;
 
 @Controller("/item")
 @RequestMapping("/item")
@@ -53,6 +55,21 @@ public class ItemController extends BaseController {
         return CommonReturnType.create(itemVO);
     }
 
+    // 商品列表页面浏览
+    @RequestMapping(value = "/list", method = {RequestMethod.GET})
+    @ResponseBody
+    public CommonReturnType listItem() {
+        List<ItemModel> itemModelList = itemService.listItem();
+
+        // 使用 Stream Api将list内的itemModel转化为ItemVO
+        List<ItemVO> itemVOList = itemModelList.stream().map(itemModel -> {
+            ItemVO itemVO = this.convertVOFromModel(itemModel);
+            return itemVO;
+        }).collect(Collectors.toList());
+
+        return CommonReturnType.create(itemVOList);
+    }
+
     private ItemVO convertVOFromModel(ItemModel itemModel) {
         if (itemModel == null) {
             return null;

src/main/java/com/cxyxiaomo/flashsale/dao/ItemDOMapper.java

@@ -2,6 +2,8 @@ package com.cxyxiaomo.flashsale.dao;
 
 import com.cxyxiaomo.flashsale.dataobject.ItemDO;
 
+import java.util.List;
+
 public interface ItemDOMapper {
     /**
      * This method was generated by MyBatis Generator.
@@ -35,6 +37,8 @@ public interface ItemDOMapper {
      */
     ItemDO selectByPrimaryKey(Integer id);
 
+    List<ItemDO> listItem();
+
     /**
      * This method was generated by MyBatis Generator.
      * This method corresponds to the database table item_info

src/main/java/com/cxyxiaomo/flashsale/service/impl/ItemServiceImpl.java

@@ -15,8 +15,8 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
-import java.math.BigDecimal;
 import java.util.List;
+import java.util.stream.Collectors;
 
 @Service
 public class ItemServiceImpl implements ItemService {
@@ -78,7 +78,15 @@ public class ItemServiceImpl implements ItemService {
 
     @Override
     public List<ItemModel> listItem() {
-        return null;
+        List<ItemDO> itemDOList = itemDOMapper.listItem();
+
+        List<ItemModel> itemModelList = itemDOList.stream().map(itemDO -> {
+            ItemStockDO itemStockDO = itemStockDOMapper.selectByItemId(itemDO.getId());
+            ItemModel itemModel = this.convertModelFromDataObject(itemDO, itemStockDO);
+            return itemModel;
+        }).collect(Collectors.toList());
+
+        return itemModelList;
     }
 
     @Override

src/main/resources/mapping/ItemDOMapper.xml

@@ -143,4 +143,10 @@
       img_url = #{imgUrl,jdbcType=VARCHAR}
     where id = #{id,jdbcType=INTEGER}
   </update>
+  <select id="listItem" resultMap="BaseResultMap">
+    select
+    <include refid="Base_Column_List" />
+    from item_info
+    order by sales DESC
+  </select>
 </mapper>