后端：增加 H5 需要的商品推荐接口

promotion/promotion-application/src/main/java/cn/iocoder/mall/promotion/application/controller/users/UsersProductRecommendController.java

@@ -0,0 +1,53 @@
+package cn.iocoder.mall.promotion.application.controller.users;
+
+import cn.iocoder.common.framework.constant.CommonStatusEnum;
+import cn.iocoder.common.framework.vo.CommonResult;
+import cn.iocoder.mall.product.api.ProductSpuService;
+import cn.iocoder.mall.product.api.bo.ProductSpuBO;
+import cn.iocoder.mall.promotion.api.ProductRecommendService;
+import cn.iocoder.mall.promotion.api.bo.ProductRecommendBO;
+import cn.iocoder.mall.promotion.application.convert.ProductRecommendConvert;
+import cn.iocoder.mall.promotion.application.vo.users.UsersProductRecommendVO;
+import com.alibaba.dubbo.config.annotation.Reference;
+import com.google.common.collect.HashMultimap;
+import com.google.common.collect.Multimap;
+import io.swagger.annotations.Api;
+import io.swagger.annotations.ApiOperation;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.Comparator;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+@RestController
+@RequestMapping("users/banner")
+@Api("商品推荐模块")
+public class UsersProductRecommendController {
+
+    @Reference(validation = "true")
+    private ProductRecommendService productRecommendService;
+    @Reference(validation = "true")
+    private ProductSpuService productSpuService;
+
+    @GetMapping("/list")
+    @ApiOperation("获得所有 Banner 列表")
+    public CommonResult<Multimap<Integer, UsersProductRecommendVO>> list() {
+        // 查询商品推荐列表
+        List<ProductRecommendBO> productRecommends = productRecommendService.getProductRecommendList(
+                null, CommonStatusEnum.ENABLE.getValue()).getData();
+        // 获得商品集合
+        List<ProductSpuBO> spus = productSpuService.getProductSpuList(
+                productRecommends.stream().map(ProductRecommendBO::getProductSpuId).collect(Collectors.toSet())).getData();
+        Map<Integer, ProductSpuBO> spuMap = spus.stream().collect(Collectors.toMap(ProductSpuBO::getId, account -> account));
+        // 组合结果，返回
+        Multimap<Integer, UsersProductRecommendVO> result = new HashMultimap<>();
+        productRecommends.sort(Comparator.comparing(ProductRecommendBO::getSort)); // 排序，按照 sort 升序
+        productRecommends.forEach(productRecommendBO -> result.put(productRecommendBO.getType(),
+                ProductRecommendConvert.INSTANCE.convert(spuMap.get(productRecommendBO.getProductSpuId())))); // 将 ProductSpuBO 添加到 results 中
+        return CommonResult.success(result);
+    }
+
+}

promotion/promotion-application/src/main/java/cn/iocoder/mall/promotion/application/convert/ProductRecommendConvert.java

@@ -1,10 +1,12 @@
 package cn.iocoder.mall.promotion.application.convert;
 
 import cn.iocoder.common.framework.vo.CommonResult;
+import cn.iocoder.mall.product.api.bo.ProductSpuBO;
 import cn.iocoder.mall.promotion.api.bo.ProductRecommendBO;
 import cn.iocoder.mall.promotion.api.bo.ProductRecommendPageBO;
 import cn.iocoder.mall.promotion.application.vo.admins.AdminsProductRecommendPageVO;
 import cn.iocoder.mall.promotion.application.vo.admins.AdminsProductRecommendVO;
+import cn.iocoder.mall.promotion.application.vo.users.UsersProductRecommendVO;
 import org.mapstruct.Mapper;
 import org.mapstruct.Mappings;
 import org.mapstruct.factory.Mappers;
@@ -23,7 +25,10 @@ public interface ProductRecommendConvert {
     @Mappings({})
     CommonResult<AdminsProductRecommendPageVO> convert(CommonResult<ProductRecommendPageBO> result);
 
-//    @Mappings({})
-//    List<UsersProductRecommendVO> convertList(List<ProductRecommendBO> banners);
+    @Mappings({})
+    UsersProductRecommendVO convert(ProductSpuBO productSpu);
+
+    //    @Mappings({})
+    //    List<UsersProductRecommendVO> convertList(List<ProductRecommendBO> banners);
 
 }

promotion/promotion-application/src/main/java/cn/iocoder/mall/promotion/application/vo/users/UsersProductRecommendVO.java

@@ -0,0 +1,75 @@
+package cn.iocoder.mall.promotion.application.vo.users;
+
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+
+import java.util.List;
+
+@ApiModel(value = "商品推荐 VO", description = "不包括 SKU 信息 VO")
+public class UsersProductRecommendVO {
+
+    @ApiModelProperty(value = "商品 SPU 编号", required = true, example = "1")
+    private Integer id;
+
+    // ========== 基本信息 =========
+    @ApiModelProperty(value = "SPU 名字", required = true, example = "厮大牛逼")
+    private String name;
+    @ApiModelProperty(value = "卖点", required = true, example = "各种 MQ 骚操作")
+    private String sellPoint;
+    @ApiModelProperty(value = "商品主图地址的数组", required = true, example = "http://www.iocoder.cn")
+    private List<String> picUrls;
+
+    // ========== Sku 相关字段 =========
+    /**
+     * 价格
+     *
+     * 目前的计算方式是，以 Sku 最小价格为准
+     */
+    private Integer price;
+
+    public Integer getId() {
+        return id;
+    }
+
+    public UsersProductRecommendVO setId(Integer id) {
+        this.id = id;
+        return this;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public UsersProductRecommendVO setName(String name) {
+        this.name = name;
+        return this;
+    }
+
+    public String getSellPoint() {
+        return sellPoint;
+    }
+
+    public UsersProductRecommendVO setSellPoint(String sellPoint) {
+        this.sellPoint = sellPoint;
+        return this;
+    }
+
+    public List<String> getPicUrls() {
+        return picUrls;
+    }
+
+    public UsersProductRecommendVO setPicUrls(List<String> picUrls) {
+        this.picUrls = picUrls;
+        return this;
+    }
+
+    public Integer getPrice() {
+        return price;
+    }
+
+    public UsersProductRecommendVO setPrice(Integer price) {
+        this.price = price;
+        return this;
+    }
+
+}