基于springboot+vue的web电子购物网站项目源码+数据库（95分以上高分毕业设计）

package com.webshop.webshop.service.imp; import com.github.pagehelper.PageHelper; import com.github.pagehelper.PageInfo; import com.webshop.webshop.dao.CartMapper; import com.webshop.webshop.dao.OrderMapper; import com.webshop.webshop.dao.ProductMapper; import com.webshop.webshop.pojo.Cart; import com.webshop.webshop.pojo.Order; import com.webshop.webshop.pojo.Product; import com.webshop.webshop.service.OrderService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import java.util.HashMap; import java.util.List; import java.util.UUID; /** * Copyright (C), 2018-2020 * FileName: OrderServiceImp * Author: * Date: 2020/2/21 14:50 * Description: 生成订单 */ @Service public class OrderServiceImp implements OrderService { @Autowired private OrderMapper orderMapper; @Autowired private CartMapper cartMapper; @Autowired private ProductMapper productMapper; @Override public int InsOrder(Order order) { return orderMapper.InsOrder(order); } @Override public PageInfo<Order> SelectOrderAndCart(Integer pageNum, Integer pageSize, Order order) { PageHelper.startPage(pageNum, pageSize); List<Order> orders = orderMapper.SelectOrderAndCart(order); PageInfo<Order> orderPageInfo = new PageInfo<>(orders); return orderPageInfo; } //生成订单 // 添加事物管理 保证事物正常 避突发情况 @Transactional @Override public int DoOrder(Order order, Cart cart, String cart_state, Integer cart_id, Integer u_id) { Cart cartEach = new Cart(); // 1.//更新清单状态 支付中--变为-> 待收货 int i1 = 0; if (cart_state.equals("购物车支付中")) { // 更新销量 int a = DosaveP_sum("购物车支付中", cart); // 开始调用生成订单方法 cartEach.setU_id(u_id); cart.setCart_state("购物车支付中"); List<Cart> carts = cartMapper.Sel_CartCar_All_state_uid(cartEach); eachCart(carts, cart, order,"购物车"); } else if (cart_state.equals("多个支付中")) { // 多个订单一起支付 // 更新销量 int a = DosaveP_sum("多个支付中", cart); // 开始调用生成订单方法 cartEach.setU_id(u_id); cartEach.setCart_state("支付中"); List<Cart> carts = cartMapper.Sel_CartCar_All_state_uid(cartEach); eachCart(carts, cart, order,"支付"); }else if (cart_state.equals("单个支付中")) { // 单个订单支付 通过id 直接更新 cart.setCart_id(cart_id); i1 = cartMapper.UpdCartByStateAndU_idAndC_id(cart); // 更新销量 int a = DosaveP_sum("支付中", cart); // 2.生成总订单 负责控制物流，计算多个购物清单总价 int i = orderMapper.InsOrder(order); } // 3.更新商品库存及销量情况 return i1 + 1; } @Override public int UdpOrder(Order order) { return orderMapper.UdpOrder(order); } // 更新销量 private int DosaveP_sum(String s, Cart cart) { // 普通订单 List<Cart> carts = null; cart.setCart_state(s); // 购物车订单 if (s.equals("购物车支付中")) { carts = cartMapper.Sel_CartCar_All_state_uid(cart); } else { carts = cartMapper.SelCartByU_idAndState(cart); } try { for (Cart c : carts ) { // 获取商品id Integer cart_p_id = c.getCart_p_id(); // 获取清单购买数量 Integer cart_sum = c.getCart_sum(); // 获取原商品 Product product1 = productMapper.SelProductByPid(cart_p_id); // 更新商品销量 Product product = new Product(); product.setP_id(cart_p_id); product.setP_sum(product1.getP_sum() + cart_sum); int i = productMapper.UpdProById(product); } } catch (Exception e) { return 0; } return 1; } //遍历清单 针对一次购买多个商品，生成订单 根据不同卖家，生成对应卖家的订单。方便卖家发货 private void eachCart(List<Cart> carts, Cart cartA, Order order,String msg) { // 设置Order_id String uuid = UUID.randomUUID().toString().replaceAll("-", ""); cartA.setCart_state("待发货"); // 建立map表 键为 卖家id 值为 清单ID HashMap<Integer, String> hashMap = new HashMap<>(); int sum = 0; for (Cart c : carts) { Integer seller_id = c.getSeller_id(); Integer cart_id = c.getCart_id(); if (sum == 0) { // 累计 避免重复 此if块 只运行一次 sum++; // 1.先生成总订单 负责控制物流，计算多个购物清单总价 order.setOrder_uuid(uuid); order.setOrder_cardid(seller_id); int i = orderMapper.InsOrder(order); // 2. 购物车订单 通过 id更新 cartA.setCart_id(cart_id); cartA.setCart_order_id(uuid); if (msg.equals("购物车")){ cartMapper.UpdCart_Car(cartA); }else { cartMapper.UpdCartByStateAndU_idAndC_id(cartA); } // 把卖家id 和订单id 存入map hashMap.put(seller_id, uuid); // sum累计 避免重复 } for (Integer key : hashMap.keySet() ) { // 判断是否为不同卖家 if (key == seller_id) { // 绑定清单 // 更新 清单 String s = hashMap.get(seller_id); cartA.setCart_order_id(s); cartA.setCart_id(cart_id); if (msg.equals("购物车")){ cartMapper.UpdCart_Car(cartA); }else { cartMapper.UpdCartByStateAndU_idAndC_id(cartA); } } else { // 生成新 order // 1.先生成总订单 负责控制物流，计算多个购物清单总价 order.setOrder_uuid(uuid + cart_id); order.setOrder_cardid(seller_id); int i = orderMapper.InsOrder(order); hashMap.put(seller_id, uuid + cart_id); // 绑定清单 // 更新 清单 String s = hashMap.get(seller_id); cartA.setCart_order_id(s); cartA.setCart_id(cart_id); if (msg.equals("购物车")){ cartMapper.UpdCart_Car(cartA); }else { cartMapper.UpdCartByStateAndU_idAndC_id(cartA); } } } } } }