/** 查看购物车 */
public String myShoppingCart() {
HttpServletRequest request = ServletActionContext.getRequest();
// 获取用户ID
Users user = (Users) request.getSession().getAttribute("users");
String userId = user.getId();
// 购物车商品列表map
Map<Commodity, Integer> cartmap =
(Map<Commodity, Integer>) request.getSession().getAttribute("cartmap");
// 根据userid查询购物车表的commodity
String hql = "from ShoppingCart s where s.usersId = ? ";
List<ShoppingCart> list = commonService.findListByHQL(hql, userId);
// 购物车中的商品数量
int count = 0;
// 购物车商品总价
float money = 0;
if (list.size() > 0) {
for (int i = 0; i < list.size(); i++) {
ShoppingCart shoppingCart = list.get(i);
commodity = commonService.findById(shoppingCart.getCommodityId(), new Commodity());
FileSource fileSource = commonService.findById(commodity.getPicId(), new FileSource());
commodity.setFileSource(fileSource);
cartmap.put(commodity, shoppingCart.getCount());
money += commodity.getPrice() * shoppingCart.getCount();
count += shoppingCart.getCount();
}
}
request.setAttribute("count", count);
request.setAttribute("money", money);
request.setAttribute("cartmap", cartmap);
return "myShoppingCart";
}
/** 加入购物车 */
public String addToShoppingCart() {
HttpServletRequest request = ServletActionContext.getRequest();
Timestamp creTime = Utils.date2Stamp(new Date());
// 获取用户ID
Users user = (Users) request.getSession().getAttribute("users");
String userId = user.getId();
// 获取页面传的商品ID
String id = request.getParameter("commodity.id");
System.out.println(id);
Map<Commodity, Integer> cartmap =
(Map<Commodity, Integer>) request.getSession().getAttribute("cartmap");
// 根据userid查询购物车表有无该用户对应的commodityID
String hql = "from ShoppingCart s where s.usersId = ? ";
List<ShoppingCart> list = commonService.findListByHQL(hql, userId);
// 购物车商品总价
int money = 0;
// 购物车商品总数
int count = 0;
boolean flag = false; // 记录查询时是否有对应的commodityId对应上
for (int i = 0; i < list.size(); i++) {
ShoppingCart shoppingCart = list.get(i);
if (id.equals(shoppingCart.getCommodityId().toString())) {
// 更新shoppingcart表的count值
shoppingCart.setCount(shoppingCart.getCount() + 1);
commonService.saveOrUpdate(shoppingCart);
flag = true;
}
commodity = commonService.findById(shoppingCart.getCommodityId(), new Commodity());
FileSource fileSource = commonService.findById(commodity.getPicId(), new FileSource());
commodity.setFileSource(fileSource);
cartmap.put(commodity, shoppingCart.getCount());
// 更新购物车商品总数
count = count + shoppingCart.getCount();
// 更新购物车商品总价
money = (int) (money + shoppingCart.getCount() * commodity.getPrice());
}
// 设置属性并保存新的shoppingcart实体
if (flag == false) {
shoppingCart.setCommodityId(id);
shoppingCart.setCreateTime(creTime);
shoppingCart.setUpdateTime(creTime);
shoppingCart.setId(Utils.getUUID());
shoppingCart.setUsersId(userId);
shoppingCart.setCount(1);
commonService.save(shoppingCart);
// 取得新增的商品信息并放入cartmap
commodity = commonService.findById(shoppingCart.getCommodityId(), new Commodity());
FileSource fileSource = commonService.findById(commodity.getPicId(), new FileSource());
commodity.setFileSource(fileSource);
cartmap.put(commodity, shoppingCart.getCount());
// 更新购物车商品总数
count = count + shoppingCart.getCount();
// 更新购物车商品总价
money = (int) (money + shoppingCart.getCount() * commodity.getPrice());
}
request.setAttribute("cartmap", cartmap);
request.setAttribute("money", money);
request.setAttribute("count", count);
return "addToShoppingCart";
}