商品分组

eladmin-system/src/main/java/cn/ysk/cashier/dto/product/TbProductGroupDto.java

@@ -17,6 +17,7 @@ package cn.ysk.cashier.dto.product;
 
 import lombok.Data;
 import java.io.Serializable;
+import java.util.List;
 
 /**
 * @website https://eladmin.vip
@@ -54,7 +55,7 @@ public class TbProductGroupDto implements Serializable {
     private Integer sort;
 
     /** 商品列表 */
-    private String productIds;
+    private List<String> productIds;
 
     private Long createdAt;
 

eladmin-system/src/main/java/cn/ysk/cashier/mapper/product/TbProductGroupMapper.java

@@ -21,8 +21,14 @@ import cn.ysk.cashier.dto.product.TbProductGroupDto;
 
 import org.mapstruct.Mapper;
 
+import org.mapstruct.Mapping;
 import org.mapstruct.ReportingPolicy;
 
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+import java.util.stream.Collectors;
+
 /**
 * @website https://eladmin.vip
 * @author lyf
@@ -31,4 +37,29 @@ import org.mapstruct.ReportingPolicy;
 @Mapper(componentModel = "spring", unmappedTargetPolicy = ReportingPolicy.IGNORE)
 public interface TbProductGroupMapper extends BaseMapper<TbProductGroupDto, TbProductGroup> {
 
+    @Mapping(target = "productIds", source = "productIds")
+    TbProductGroupDto toDto(TbProductGroup entity);
+
+    // 自定义的字符串到整数列表的转换方法
+    default List<Integer> map(String value) {
+        if (value == null || value.isEmpty()) {
+            return Collections.emptyList();
+        }
+        // 分割字符串，然后将每个数字字符串转换为Integer，收集到List中
+        return Arrays.stream(value.split(","))
+                .map(Integer::valueOf)
+                .collect(Collectors.toList());
+    }
+
+    // 如果需要从DTO转回实体，也可能需要实现反向的映射方法
+    default String map(List<Integer> values) {
+        if (values == null || values.isEmpty()) {
+            return "";
+        }
+        // 将整数列表转换为由逗号分隔的字符串
+        return values.stream()
+                .map(String::valueOf)
+                .collect(Collectors.joining(","));
+    }
+
 }

eladmin-system/src/main/java/cn/ysk/cashier/service/impl/productimpl/TbProductGroupServiceImpl.java

@@ -34,6 +34,7 @@ import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
+import org.springframework.util.CollectionUtils;
 
 import java.time.Instant;
 import java.util.List;
@@ -77,16 +78,9 @@ public class TbProductGroupServiceImpl implements TbProductGroupService {
     @Override
     public List<TbProduct> findByIdProduct(Integer productGroup) {
         TbProductGroup tbProductGroup = tbProductGroupRepository.findById(productGroup).orElseGet(TbProductGroup::new);
-        if (tbProductGroup.getProductIds() != null){
-            List<String> list = ListUtil.stringChangeStringList(tbProductGroup.getProductIds());
-
-            List<Integer> intList = new ArrayList<>();
-            for (String str : list) {
-                intList.add(Integer.parseInt(str));
-            }
-            System.out.println(intList);
-
-            return tbProductRepository.findByIds(ListUtil.stringChangeIntegerList(list));
+        TbProductGroupDto dto = tbProductGroupMapper.toDto(tbProductGroup);
+        if (!CollectionUtils.isEmpty(dto.getProductIds())){
+            return tbProductRepository.findByIds(ListUtil.stringChangeIntegerList(dto.getProductIds()));
         }
         return new ArrayList<>();
     }