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);
}