在线商城

pjcloud-supermarket/pjcloud-supermarket-api/src/main/java/com/bsd/pjcloud/supermarket/entity/ShopSkuEntity.java

@@ -2,6 +2,8 @@ package com.bsd.pjcloud.supermarket.entity;
 
 import com.baomidou.mybatisplus.annotation.*;
 import com.baomidou.mybatisplus.extension.activerecord.Model;
+import com.bsd.pjcloud.common.core.util.MoneyDeserializer;
+import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
 import io.swagger.v3.oas.annotations.media.Schema;
 import com.bsd.pjcloud.common.core.util.TenantTable;
 import lombok.Data;
@@ -87,11 +89,13 @@ public class ShopSkuEntity extends Model<ShopSkuEntity> {
 	* 进价/单位分
 	*/
 	@Schema(description="进价/单位分")
+	@JsonDeserialize(using = MoneyDeserializer.class) // 元 -> 分
    private Integer purchasePrice;
 	/**
 	* 零售价/单位分
 	*/
 	@Schema(description="零售价/单位分")
+	@JsonDeserialize(using = MoneyDeserializer.class) // 元 -> 分
    private Integer retailPrice;
 	/**
 	* spuID
@@ -102,6 +106,7 @@ public class ShopSkuEntity extends Model<ShopSkuEntity> {
 	* 促销价
 	*/
 	@Schema(description="促销价")
+	@JsonDeserialize(using = MoneyDeserializer.class) // 元 -> 分
    private Integer promotionPrice;
 	/**
 	* 库存

pjcloud-supermarket/pjcloud-supermarket-api/src/main/java/com/bsd/pjcloud/supermarket/vo/ShopSpuPageVo.java

@@ -0,0 +1,22 @@
+package com.bsd.pjcloud.supermarket.vo;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Data;
+import java.math.BigDecimal;
+
+@Data
+public class ShopSpuPageVo {
+    @Schema(description = "商品ID")
+    private Long id;
+
+    @Schema(description = "商品名称")
+    private String productName;
+
+    @Schema(description = "最低价")
+    private BigDecimal minPrice;
+
+    @Schema(description = "总销量")
+    private Integer totalSales;
+
+    // 可扩展其他字段
+} 

pjcloud-supermarket/pjcloud-supermarket-api/src/main/java/com/bsd/pjcloud/supermarket/vo/app/ShopSpuListAppVo.java

@@ -37,4 +37,15 @@ public class ShopSpuListAppVo {
     @Schema(description="商品分类编号")
     private Long categoryId;
 
+    /**
+     * 最低价（元）
+     */
+    @Schema(description="最低价（元）")
+    private java.math.BigDecimal minPrice;
+
+    /**
+     * 总库存
+     */
+    @Schema(description="总库存")
+    private Double totalStock;
 } 

pjcloud-supermarket/pjcloud-supermarket-biz/src/main/java/com/bsd/pjcloud/supermarket/controller/AppShopSpuController.java

@@ -34,15 +34,41 @@ public class AppShopSpuController {
     @Operation(summary = "APP商品分页", description = "移动端商品分页")
     public R<IPage<ShopSpuListAppVo>> page(
             @ParameterObject Page page,
-            @RequestParam(required = false) Integer categoryId,
-            @RequestParam(required = false) String keyword
+            @RequestParam(required = false) Long categoryId,
+            @RequestParam(required = false) String keyword,
+            @RequestParam(required = false) String merchantId
     ) {
         LambdaQueryWrapper<ShopSpuEntity> wrapper = Wrappers.lambdaQuery();
         wrapper.eq(categoryId != null, ShopSpuEntity::getCategoryId, categoryId);
-        wrapper.like(StrUtil.isNotBlank(keyword), ShopSpuEntity::getProductName, keyword);
+        wrapper.like(cn.hutool.core.util.StrUtil.isNotBlank(keyword), ShopSpuEntity::getProductName, keyword);
         wrapper.eq(ShopSpuEntity::getStatus, 0); // 只查上架
+        if (cn.hutool.core.util.StrUtil.isNotBlank(merchantId)) {
+            wrapper.apply("FIND_IN_SET({0}, merchant_ids)", merchantId.trim());
+        }
         IPage<ShopSpuEntity> spuPage = shopSpuService.page(page, wrapper);
-        IPage<ShopSpuListAppVo> voPage = spuPage.convert(spu -> BeanUtils.toBean(spu, ShopSpuListAppVo.class));
+        List<Long> spuIds = spuPage.getRecords().stream().map(ShopSpuEntity::getId).collect(java.util.stream.Collectors.toList());
+        List<ShopSkuEntity> skuList = spuIds.isEmpty() ? List.of() : shopSkuService.list(
+            Wrappers.<ShopSkuEntity>lambdaQuery().in(ShopSkuEntity::getSpuId, spuIds)
+        );
+        java.util.Map<Long, List<ShopSkuEntity>> skuMap = skuList.stream().collect(java.util.stream.Collectors.groupingBy(ShopSkuEntity::getSpuId));
+        IPage<ShopSpuListAppVo> voPage = spuPage.convert(spu -> {
+            ShopSpuListAppVo vo = com.bsd.pjcloud.common.core.util.BeanUtils.toBean(spu, ShopSpuListAppVo.class);
+            List<ShopSkuEntity> skus = skuMap.getOrDefault(spu.getId(), List.of());
+            vo.setMinPrice(skus.stream()
+                .map(ShopSkuEntity::getRetailPrice)
+                .filter(java.util.Objects::nonNull)
+                .map(price -> new java.math.BigDecimal(price).divide(new java.math.BigDecimal(100)))
+                .min(java.math.BigDecimal::compareTo)
+                .orElse(java.math.BigDecimal.ZERO));
+            vo.setTotalStock(
+                skus.stream()
+                    .map(ShopSkuEntity::getStock)
+                    .filter(java.util.Objects::nonNull)
+                    .mapToDouble(Double::doubleValue)
+                    .sum()
+            );
+            return vo;
+        });
         return R.ok(voPage);
     }
 

pjcloud-supermarket/pjcloud-supermarket-biz/src/main/java/com/bsd/pjcloud/supermarket/controller/ShopSpuController.java

@@ -3,14 +3,17 @@ package com.bsd.pjcloud.supermarket.controller;
 import cn.hutool.core.util.StrUtil;
 import cn.hutool.core.util.ArrayUtil;
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.baomidou.mybatisplus.core.metadata.IPage;
 import com.baomidou.mybatisplus.core.toolkit.Wrappers;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.bsd.pjcloud.common.core.util.R;
 import com.bsd.pjcloud.common.log.annotation.SysLog;
 import com.bsd.pjcloud.common.security.util.SecurityUtils;
 import com.bsd.pjcloud.supermarket.entity.ShopSpuEntity;
+import com.bsd.pjcloud.supermarket.vo.ShopSpuPageVo;
 import com.bsd.pjcloud.supermarket.entity.ShopSkuEntity;
 import com.bsd.pjcloud.supermarket.service.ShopSpuService;
+import com.bsd.pjcloud.supermarket.service.ShopSkuService;
 import org.springframework.security.access.prepost.PreAuthorize;
 import com.bsd.pjcloud.common.excel.annotation.ResponseExcel;
 import io.swagger.v3.oas.annotations.security.SecurityRequirement;
@@ -23,6 +26,8 @@ import org.springframework.web.bind.annotation.*;
 
 import java.util.List;
 import java.util.Objects;
+import java.util.stream.Collectors;
+import java.math.BigDecimal;
 
 /**
  * 商品spu
@@ -38,6 +43,7 @@ import java.util.Objects;
 public class ShopSpuController {
 
     private final  ShopSpuService shopSpuService;
+    private final ShopSkuService shopSkuService;
 
     /**
      * 分页查询

pjcloud-supermarket/pjcloud-supermarket-biz/src/main/java/com/bsd/pjcloud/supermarket/service/ShopSpuService.java

@@ -1,6 +1,7 @@
 package com.bsd.pjcloud.supermarket.service;
 
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.baomidou.mybatisplus.core.metadata.IPage;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.github.yulichang.extension.mapping.base.MPJDeepService;
 import com.bsd.pjcloud.supermarket.entity.ShopSkuEntity;
@@ -21,5 +22,5 @@ public interface ShopSpuService extends MPJDeepService<ShopSpuEntity> {
      * @param wrapper
      * @return
      */
-    Object pageScope(Page page, LambdaQueryWrapper<ShopSpuEntity> wrapper);
+    IPage<ShopSpuEntity> pageScope(Page page, LambdaQueryWrapper<ShopSpuEntity> wrapper);
 }

pjcloud-supermarket/pjcloud-supermarket-biz/src/main/java/com/bsd/pjcloud/supermarket/service/impl/ShopSpuServiceImpl.java

@@ -1,6 +1,7 @@
 package com.bsd.pjcloud.supermarket.service.impl;
 
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.baomidou.mybatisplus.core.metadata.IPage;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.bsd.pjcloud.common.data.datascope.DataScope;
@@ -69,7 +70,7 @@ public class ShopSpuServiceImpl extends ServiceImpl<ShopSpuMapper, ShopSpuEntity
     }
 
     @Override
-    public Object pageScope(Page page, LambdaQueryWrapper<ShopSpuEntity> wrapper) {
+    public IPage<ShopSpuEntity> pageScope(Page page, LambdaQueryWrapper<ShopSpuEntity> wrapper) {
         return baseMapper.selectPageByScope(page, wrapper, DataScope.of());
     }
 }