feat(新增): 查询购物车列表

service/service-cart/pom.xml

@@ -23,5 +23,10 @@
             <artifactId>service-product-client</artifactId>
             <version>1.0-SNAPSHOT</version>
         </dependency>
+        <dependency>
+            <groupId>com.atguigu</groupId>
+            <artifactId>service-activity-client</artifactId>
+            <version>1.0-SNAPSHOT</version>
+        </dependency>
     </dependencies>
 </project>

service/service-cart/src/main/java/com/atguigu/ssyx/cart/controller/CartApiController.java

@@ -1,9 +1,11 @@
 package com.atguigu.ssyx.cart.controller;
 
 import com.atguigu.ssyx.cart.service.CartInfoService;
+import com.atguigu.ssyx.client.ActivityFeignClient;
 import com.atguigu.ssyx.common.context.BaseContext;
 import com.atguigu.ssyx.common.result.Result;
 import com.atguigu.ssyx.model.order.CartInfo;
+import com.atguigu.ssyx.vo.order.OrderConfirmVo;
 import io.swagger.annotations.Api;
 import io.swagger.annotations.ApiOperation;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -17,6 +19,8 @@ import java.util.List;
 public class CartApiController {
     @Autowired
     private CartInfoService cartInfoService;
+    @Autowired
+    private ActivityFeignClient activityFeignClient;
 
     @ApiOperation(value = "添加购物车")
     @GetMapping("addToCart/{skuId}/{skuNum}")
@@ -49,4 +53,22 @@ public class CartApiController {
         cartInfoService.batchDeleteCart(userId, skuIdList);
         return Result.success();
     }
+
+    @ApiOperation(value = "查询购物车列表")
+    @GetMapping("cartList")
+    public Result<List<CartInfo>> cartList() {
+        Long userId = BaseContext.getUserId();
+        List<CartInfo> cartInfoList = cartInfoService.getCartList(userId);
+        return Result.success(cartInfoList);
     }
+
+    @ApiOperation(value = "查询带优惠卷的购物车")
+    @GetMapping("activityCartList")
+    public Result<OrderConfirmVo> activityCartList() {
+        Long userId = BaseContext.getUserId();
+        List<CartInfo> cartInfoList = cartInfoService.getCartList(userId);
+        OrderConfirmVo orderTradeVo = activityFeignClient.findCartActivityAndCoupon(cartInfoList, userId);
+        return Result.success(orderTradeVo);
+    }
+}
+

service/service-cart/src/main/java/com/atguigu/ssyx/cart/service/CartInfoService.java

@@ -1,5 +1,7 @@
 package com.atguigu.ssyx.cart.service;
 
+import com.atguigu.ssyx.model.order.CartInfo;
+
 import java.util.List;
 
 public interface CartInfoService {
@@ -35,4 +37,12 @@ public interface CartInfoService {
      * @param skuIdList 商品的id
      */
     void batchDeleteCart(Long userId, List<Long> skuIdList);
+
+    /**
+     * * 查询购物车列表
+     *
+     * @param userId 用户id
+     * @return 购物车信息列表
+     */
+    List<CartInfo> getCartList(Long userId);
 }

service/service-cart/src/main/java/com/atguigu/ssyx/cart/service/impl/CartInfoServiceImpl.java

@@ -7,13 +7,17 @@ import com.atguigu.ssyx.common.constant.MessageConstant;
 import com.atguigu.ssyx.common.exception.BunnyException;
 import com.atguigu.ssyx.common.result.ResultCodeEnum;
 import com.atguigu.ssyx.enums.SkuType;
+import com.atguigu.ssyx.model.base.BaseEntity;
 import com.atguigu.ssyx.model.order.CartInfo;
 import com.atguigu.ssyx.model.product.SkuInfo;
+import org.apache.commons.lang3.StringUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.data.redis.core.BoundHashOperations;
 import org.springframework.data.redis.core.RedisTemplate;
 import org.springframework.stereotype.Service;
 
+import java.util.ArrayList;
+import java.util.Comparator;
 import java.util.Date;
 import java.util.List;
 
@@ -131,4 +135,28 @@ public class CartInfoServiceImpl implements CartInfoService {
             skuIdList.forEach(skuId -> hashOperations.delete(skuId.toString()));
         }
     }
+
+    /**
+     * * 查询购物车列表
+     *
+     * @param userId 用户id
+     * @return 购物车信息列表
+     */
+    @Override
+    public List<CartInfo> getCartList(Long userId) {
+        List<CartInfo> cartInfoList = new ArrayList<>();
+        // 用户ID不存在返回空数组
+        if (StringUtils.isEmpty(userId.toString())) {
+            return cartInfoList;
+        }
+        // 查询Redis之后做排序
+        BoundHashOperations<String, String, CartInfo> hashOperations = redisTemplate.boundHashOps(module.getCartKey(userId));
+        cartInfoList = hashOperations.values();
+        // 当购物车数据不为空时，做降序排列
+        if (cartInfoList != null) {
+            cartInfoList.sort(Comparator.comparing(BaseEntity::getCreateTime));
+        }
+        // 返回结果
+        return cartInfoList;
+    }
 }