java网上图书商城（7）订单模块2

<div class="divMain"> <div class="divTitle"> <span style="margin-left: 150px;margin-right: 280px;">商品信息</span> <span style="margin-left: 40px;margin-right: 38px;">金额</span> <span style="margin-left: 50px;margin-right: 40px;">订单状态</span> <span style="margin-left: 50px;margin-right: 50px;">操作</span> </div> <table align="center" border="0" width="100%" cellpadding="0" cellspacing="0"> <c:forEach items="${pb.beanList }" var="order"> <tr class="tt">  <td width="320px">订单号：<a href="<c:url value='/OrderServlet?method=load&oid=${order.oid }'/>">${order.oid }</a></td>  <td width="200px">下单时间：${order.ordertime }</td>  <td> </td>  <td> </td>  <td> </td>  <td> </td> </tr> <tr style="padding-top: 10px; padding-bottom: 10px;">  <td colspan="2">  <c:forEach items="${order.orderItemList }" var="orderItem">   <a class="link2" href="<c:url value='/BookServlet?method=load&bid=${orderItem.book.bid }'/>">   <img border="0" width="70" src="<c:url value='/${orderItem.book.image_b }'/>"/>   </a>  </c:forEach>  </td>  <td width="115px">  <span class="price_t">¥${order.total }</span>  </td>  <td width="142px">  <c:choose>   <c:when test="${order.status eq 1 }">(等待付款)</c:when>   <c:when test="${order.status eq 2 }">(准备发货)</c:when>   <c:when test="${order.status eq 3 }">(等待确认)</c:when>   <c:when test="${order.status eq 4 }">(交易成功)</c:when>   <c:when test="${order.status eq 5 }">(已取消)</c:when>  </c:choose>    </td>  <td>  <a href="<c:url value='/OrderServlet?method=load&oid=${order.oid }'/>">查看</a><br/>  <c:if test="${order.status eq 1 }">   <a href="<c:url value='/OrderServlet?method=paymentPre&oid=${order.oid }'/>">支付</a><br/>   <a href="<c:url value='/OrderServlet?method=load&oid=${order.oid }&btn=cancel'/>">取消</a><br/>     </c:if>  <c:if test="${order.status eq 3 }">   <a href="<c:url value='/OrderServlet?method=load&oid=${order.oid }&btn=confirm'/>">确认收货</a><br/>  </c:if>  </td> </tr> </c:forEach> </table></div>

public String createOrder(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { /* * 1. 获取所有购物车条目的id，查询之 */ String cartItemIds = req.getParameter("cartItemIds"); List<CartItem> cartItemList = cartItemService.loadCartItems(cartItemIds); if(cartItemList.size() == 0) { req.setAttribute("code", "error"); req.setAttribute("msg", "您没有选择要购买的图书，不能下单！"); return "f:/jsps/msg.jsp"; } /* * 2. 创建Order */ Order order = new Order(); order.setOid(CommonUtils.uuid());//设置主键 order.setOrdertime(String.format("%tF %<tT", new Date()));//下单时间 order.setStatus(1);//设置状态，1表示未付款 order.setAddress(req.getParameter("address"));//设置收货地址 User owner = (User)req.getSession().getAttribute("sessionUser"); order.setOwner(owner);//设置订单所有者  BigDecimal total = new BigDecimal("0"); for(CartItem cartItem : cartItemList) { total = total.add(new BigDecimal(cartItem.getSubtotal() + "")); } order.setTotal(total.doubleValue());//设置总计  /* * 3. 创建List<OrderItem> * 一个CartItem对应一个OrderItem */ List<OrderItem> orderItemList = new ArrayList<OrderItem>(); for(CartItem cartItem : cartItemList) { OrderItem orderItem = new OrderItem(); orderItem.setOrderItemId(CommonUtils.uuid());//设置主键 orderItem.setQuantity(cartItem.getQuantity()); orderItem.setSubtotal(cartItem.getSubtotal()); orderItem.setBook(cartItem.getBook()); orderItem.setOrder(order); orderItemList.add(orderItem); } order.setOrderItemList(orderItemList);  /* * 4. 调用service完成添加 */ orderService.createOrder(order);  // 删除购物车条目 cartItemService.batchDelete(cartItemIds); /* * 5. 保存订单，转发到ordersucc.jsp */ req.setAttribute("order", order); return "f:/jsps/order/ordersucc.jsp";}

public void add(Order order) throws SQLException { /* * 1. 插入订单 */ String sql = "insert into t_order values(?,?,?,?,?,?)"; Object[] params = {order.getOid(), order.getOrdertime(),  order.getTotal(),order.getStatus(),order.getAddress(),  order.getOwner().getUid()}; qr.update(sql, params);  /* * 2. 循环遍历订单的所有条目,让每个条目生成一个Object[] * 多个条目就对应Object[][] * 执行批处理，完成插入订单条目 */ sql = "insert into t_orderitem values(?,?,?,?,?,?,?,?)"; int len = order.getOrderItemList().size(); Object[][] objs = new Object[len][]; for(int i = 0; i < len; i++){ OrderItem item = order.getOrderItemList().get(i); objs[i] = new Object[]{item.getOrderItemId(),item.getQuantity(),  item.getSubtotal(),item.getBook().getBid(),  item.getBook().getBname(),item.getBook().getCurrPrice(),  item.getBook().getImage_b(),order.getOid()}; } qr.batch(sql, objs);}