新增 名称联想

ch-dao/src/main/java/com/wwdz/ch/db/dao/FavoritesItemsRelationDao.java

@@ -4,6 +4,7 @@ import com.github.pagehelper.PageInfo;
 import com.wwdz.ch.db.domain.FavoritesItemsRelation;
 
 import java.util.List;
+import java.util.Map;
 
 public interface FavoritesItemsRelationDao {
     int insert(FavoritesItemsRelation record);
@@ -17,4 +18,5 @@ public interface FavoritesItemsRelationDao {
     long countByItemId(Long itemId);
     boolean isCollected(Long userId, Long itemId);
     long countByFavoritesId(Long favoritesId);
+    List<Map<String, Object>> findItemIdByCount();
 }

ch-dao/src/main/java/com/wwdz/ch/db/impl/FavoritesItemsRelationDaoImpl.java

@@ -2,16 +2,16 @@ package com.wwdz.ch.db.impl;
 
 import com.github.pagehelper.PageHelper;
 import com.github.pagehelper.PageInfo;
-import com.wwdz.ch.db.domain.Favorites;
-import com.wwdz.ch.db.mapper.FavoritesItemsRelationMapper;
+import com.wwdz.ch.db.dao.FavoritesItemsRelationDao;
 import com.wwdz.ch.db.domain.FavoritesItemsRelation;
 import com.wwdz.ch.db.domain.FavoritesItemsRelationExample;
-import com.wwdz.ch.db.dao.FavoritesItemsRelationDao;
+import com.wwdz.ch.db.mapper.FavoritesItemsRelationMapper;
 import com.xxdxxs.db.component.JdbcHelper;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Repository;
 
 import java.util.List;
+import java.util.Map;
 
 @Repository
 public class FavoritesItemsRelationDaoImpl implements FavoritesItemsRelationDao {
@@ -106,4 +106,9 @@ public class FavoritesItemsRelationDaoImpl implements FavoritesItemsRelationDao
         JdbcHelper.ifPresent(favoritesId, criteria::andFavoritesIdEqualTo);
         return favoritesItemsRelationMapper.countByExample(example);
     }
+
+    @Override
+    public List<Map<String, Object>> findItemIdByCount() {
+        return favoritesItemsRelationMapper.selectItemIdByCount();
+    }
 }

ch-dao/src/main/java/com/wwdz/ch/db/mapper/FavoritesItemsRelationMapper.java

@@ -6,6 +6,7 @@ import org.apache.ibatis.annotations.Mapper;
 import org.apache.ibatis.annotations.Param;
 
 import java.util.List;
+import java.util.Map;
 
 @Mapper
 public interface FavoritesItemsRelationMapper {
@@ -50,4 +51,6 @@ public interface FavoritesItemsRelationMapper {
     int updateByExampleSelective(@Param("record") FavoritesItemsRelation record, @Param("example") FavoritesItemsRelationExample example);
 
     int updateByExample(@Param("record") FavoritesItemsRelation record, @Param("example") FavoritesItemsRelationExample example);
+
+    List<Map<String, Object>> selectItemIdByCount();
 }
\ No newline at end of file

ch-dao/src/main/resources/com/wwdz/ch/db/mapper/FavoritesItemsRelationMapper.xml

@@ -244,4 +244,7 @@
     </if>
     limit 1
   </select>
+  <select id="selectItemIdByCount" resultType="java.util.Map">
+    select item_id,count(*) from favorites_items_relation group by item_id order by count(*) limit 20
+  </select>
 </mapper>
\ No newline at end of file

ch-wx-api/src/main/java/com/wwdz/ch/wx/impl/ItemServiceImpl.java

@@ -76,10 +76,17 @@ public class ItemServiceImpl implements ItemService {
     @Override
     public Result recommend() {
         try {
-            CoinRequestDto coinRequestDto = new CoinRequestDto();
-            coinRequestDto.setName("");
-            List<String> names = itemDao.findNames(coinRequestDto);
-            return Result.success(names);
+            List<Map<String, Object>> list = favoritesItemsRelationDao.findItemIdByCount();
+            if (CollectionUtils.isEmpty(list)) {
+                return Result.success();
+            }
+            Random random = new Random();
+            int index = random.nextInt(20);
+            Long itemId = (Long) list.get(index).get("item_id");
+            Item item = itemDao.findDetails(itemId);
+            Map<String, Object> map = new HashMap<>();
+            map.put("name", item.getName());
+            return Result.success(map);
         } catch (Exception e) {
             logger.error("搜索推荐失败", e);
             return Result.failed("搜索推荐失败");