后端 + 前端：添加到购物车

order/order-application/src/main/java/cn/iocoder/mall/order/application/controller/users/UsersCartController.java

@@ -3,14 +3,109 @@ package cn.iocoder.mall.order.application.controller.users;
 import cn.iocoder.common.framework.vo.CommonResult;
 import cn.iocoder.mall.order.api.CartService;
 import cn.iocoder.mall.order.api.OrderService;
+import cn.iocoder.mall.order.api.bo.CartItemBO;
+import cn.iocoder.mall.order.application.vo.UsersOrderConfirmCreateVO;
+import cn.iocoder.mall.user.sdk.context.UserSecurityContextHolder;
+import com.alibaba.dubbo.config.annotation.Reference;
+import org.apache.ibatis.annotations.Param;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
 
+import java.util.Collections;
+import java.util.List;
+
+@RestController
+@RequestMapping("users/cart")
 public class UsersCartController {
 
-    // TODO 注入
+    @Reference(validation = "true")
     private CartService cartService;
-    // TODO 注入
+    @Reference(validation = "true")
     private OrderService orderService;
 
+    @PostMapping("add")
+    public CommonResult<Integer> add(@Param("skuId") Integer skuId,
+                                     @Param("quantity") Integer quantity) {
+        // 添加到购物车
+        CommonResult<Boolean> addResult = cartService.add(UserSecurityContextHolder.getContext().getUserId(),
+                skuId, quantity);
+        // 添加失败，则直接返回错误
+        if (addResult.isError()) {
+            return CommonResult.error(addResult);
+        }
+        // 获得目前购物车商品总数量
+        return cartService.count(UserSecurityContextHolder.getContext().getUserId());
+    }
+
+    @PostMapping("update_quantity")
+    public CommonResult<Integer> updateQuantity(@Param("skuId") Integer skuId,
+                                                @Param("quantity") Integer quantity) {
+        // 添加到购物车
+        CommonResult<Boolean> updateQuantityResult = cartService.updateQuantity(UserSecurityContextHolder.getContext().getUserId(),
+                skuId, quantity);
+        // 添加失败，则直接返回错误
+        if (updateQuantityResult.isError()) {
+            return CommonResult.error(updateQuantityResult);
+        }
+        // 获得目前购物车商品总数量
+        // TODO 芋艿，需要改成价格计算
+        return cartService.count(UserSecurityContextHolder.getContext().getUserId());
+    }
+
+    @PostMapping("update_selected")
+    public CommonResult<Integer> updateSelected(@Param("skuId") Integer skuId,
+                                                @Param("selected") Boolean selected) {
+        // 添加到购物车
+        CommonResult<Boolean> updateSelectedResult = cartService.updateSelected(UserSecurityContextHolder.getContext().getUserId(),
+                skuId, selected);
+        // 添加失败，则直接返回错误
+        if (updateSelectedResult.isError()) {
+            return CommonResult.error(updateSelectedResult);
+        }
+        // 获得目前购物车商品总数量
+        // TODO 芋艿，需要改成价格计算
+        return cartService.count(UserSecurityContextHolder.getContext().getUserId());
+    }
+
+    @GetMapping("count")
+    public CommonResult<Integer> count() {
+        return cartService.count(UserSecurityContextHolder.getContext().getUserId());
+    }
+
+    @GetMapping("/list")
+    public CommonResult<UsersOrderConfirmCreateVO> list() {
+        // 获得购物车中所有的
+        List<CartItemBO> cartItems = cartService.list(UserSecurityContextHolder.getContext().getUserId(), null);
+        // 购物车为空时，构造空的 UsersOrderConfirmCreateVO 返回
+        if (cartItems.isEmpty()) {
+            UsersOrderConfirmCreateVO result = new UsersOrderConfirmCreateVO();
+            result.setItemGroups(Collections.emptyList());
+            result.setFee(new UsersOrderConfirmCreateVO.Fee(0, 0, 0, 0));
+            return CommonResult.success(result);
+        }
+        // 购物车非空时，获得具体结果
+
+        return null;
+    }
+
+    @GetMapping("/confirm_create_order")
+    public CommonResult<UsersOrderConfirmCreateVO> getConfirmCreateOrder() {
+        // 获得购物车中选中的
+        List<CartItemBO> cartItems = cartService.list(UserSecurityContextHolder.getContext().getUserId(), true);
+        // 购物车为空时，构造空的 UsersOrderConfirmCreateVO 返回
+        if (cartItems.isEmpty()) {
+            UsersOrderConfirmCreateVO result = new UsersOrderConfirmCreateVO();
+            result.setItemGroups(Collections.emptyList());
+            result.setFee(new UsersOrderConfirmCreateVO.Fee(0, 0, 0, 0));
+            return CommonResult.success(result);
+        }
+        // 购物车非空时，获得具体结果
+//        return CommonResult.success(CartConvert.INSTANCE.convert(calcOrderPriceResult.getData()));
+        return null;
+    }
+
     public CommonResult<Object> confirmOrder() {
         // 查询购物车列表（选中的）
 //        cartService.list(userId, true);

order/order-application/src/main/java/cn/iocoder/mall/order/application/vo/UsersOrderConfirmCreateVO.java

@@ -133,6 +133,15 @@ public class UsersOrderConfirmCreateVO {
          */
         private Integer presentTotal;
 
+        public Fee() {
+        }
+
+        public Fee(Integer originalTotal, Integer discountTotal, Integer postageTotal, Integer presentTotal) {
+            this.originalTotal = originalTotal;
+            this.discountTotal = discountTotal;
+            this.postageTotal = postageTotal;
+            this.presentTotal = presentTotal;
+        }
     }
 
     /**