新峰商城之订单（一）：确认页面开发

新峰商城订单从生成到处理结束，主要以下几个流程：

（1）提交订单（商城用户发起）

（2）订单入库（后台逻辑）

（3）支付订单（商城用户发起）

（4）订单处理（确认订单、取消订单、修改订单）

一、订单确认的前置步骤

通过购物车页面的结算按钮进入订单确认页面，如果购物车中无数据，则提示“购物车中无数据”，数据正常则执行settle()方法并进跳转，跳转路径为/shop-cart/settle,并在此控制器方法中进行订单确认页面中数据的查询和整合，其代码如下所示：

<div class="order_button fr">
    <th:block th:if="${itemsTotal == 0}">
       <input class="order_button_c" type="button" name="tip"
                               onclick="tip()"
                               value="去结算"/>
    </th:block>
    <th:block th:unless="${itemsTotal == 0}">
       <input class="order_button_d" type="button" name="settle"
                               onclick="settle()"
                               value="去结算"/>
    </th:block>
</div>

其中tip(）方法和settle()方法代码如下所示：

javascript">/**
     * 购物车中数量为0时提示
     */
function tip() {
        Swal.fire({
            text: "购物车中无数据，无法结算",
            icon: "error",iconColor:"#f05b72",
        });
    }
/**
     * 跳转至结算页面
     */
function settle() {
        window.location.href = '/shop-cart/settle'
    }

二、订单确认页面显示主要数据

订单确认页不同于购物车中商品数据，还包括用户数据和支付数据，其详细信息如下图所示：

三、订单确认页面控制层

在ShoppingCartController类中增加settlePage()方法，用于处理/shop-cart/settle请求，并将数据带到订单确认页面进行渲染，代码如下所示：

java">@GetMapping("/shop-cart/settle")
    public String settlePage(HttpServletRequest request,
                             HttpSession httpSession) {
        int priceTotal = 0;
        //从session中获取用户信息，包括收货信息
        NewBeeMallUserVO user = (NewBeeMallUserVO) httpSession.getAttribute(Constants.MALL_USER_SESSION_KEY);
        List<NewBeeMallShoppingCartItemVO> myShoppingCartItems = newBeeMallShoppingCartService.getMyShoppingCartItems(user.getUserId());
        if (CollectionUtils.isEmpty(myShoppingCartItems)) {
            //无数据则不跳转至结算页
            return "/shop-cart";
        } else {
            //总价
            for (NewBeeMallShoppingCartItemVO newBeeMallShoppingCartItemVO : myShoppingCartItems) {
                priceTotal += newBeeMallShoppingCartItemVO.getGoodsCount() * newBeeMallShoppingCartItemVO.getSellingPrice();
            }
            if (priceTotal < 1) {
                NewBeeMallException.fail("购物项价格异常");
            }
        }
        request.setAttribute("priceTotal", priceTotal);
        request.setAttribute("myShoppingCartItems", myShoppingCartItems);
        return "mall/order-settle";
    }

此方法查询商品信息并计算总价，然后将priceTotal和myShoppingCartItems两个对象放入request请求中，再跳转到order-settle页面。

四、订单确认页面制作

在resources/templates/mall目录中新增订单确认页order-settle.html，模板代码如下所示：

<!-- Copyright (c) 2019-2020 十三 all rights reserved. -->
<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head th:replace="mall/header::head-fragment('NewBee商城-订单结算','order-detail')">
</head>
<link th:href="@{/mall/css/bootstrap-modal.css}" rel="stylesheet">
<body>
<header th:replace="mall/header::header-fragment"></header>
<!-- nav -->
<nav th:replace="mall/header::nav-fragment"></nav>

<!-- personal -->
<div id="personal">
    <div class="self-info center">

        <!-- sidebar -->
        <div th:replace="mall/personal-sidebar::sidebar-fragment"></div>

        <div class="intro fr">
            <div class="uc-box uc-main-box">
                <div class="uc-content-box order-view-box">
                    <div class="box-hd">
                        <h1 class="title">填写并核对订单信息</h1>
                        <div class="more clearfix">
                            <div class="actions">
                                <a id="saveOrder" class="btn btn-small btn-primary" title="提交订单">提交订单</a>
                            </div>
                        </div>
                    </div>
                    <div class="box-bd">
                        <div class="uc-order-item uc-order-item-pay">
                            <div class="order-detail">

                                <div class="order-summary">
                                    <div class="order-progress">
                                        <ol class="progress-list clearfix progress-list-5">
                                            <li class="step step-done">
                                                <div class="progress"><span class="text">购物车</span></div>
                                                <div class="info"></div>
                                            </li>
                                            <li class="step step-active">
                                                <div class="progress"><span class="text">下单</span></div>
                                                <div class="info"></div>
                                            </li>
                                            <li class="step">
                                                <div class="progress"><span class="text">付款</span></div>
                                                <div class="info"></div>
                                            </li>
                                            <li class="step">
                                                <div class="progress"><span class="text">出库</span></div>
                                                <div class="info"></div>
                                            </li>
                                            <li class="step">
                                                <div class="progress"><span class="text">交易成功</span></div>
                                                <div class="info"></div>
                                            </li>
                                        </ol>
                                    </div>
                                </div>
                                <table class="order-items-table">
                                    <tbody>

                                    <th:block th:each="item : ${myShoppingCartItems}">
                                        <tr>
                                            <td class="col col-thumb">
                                                <div class="figure figure-thumb">
                                                    <a target="_blank" th:href="@{'/goods/detail/'+${item.goodsId}}">
                                                        <img th:src="@{${item.goodsCoverImg}}"
                                                             width="80" height="80" alt="">
                                                    </a>
                                                </div>
                                            </td>
                                            <td class="col col-name">
                                                <p class="name">
                                                    <a target="_blank" th:href="@{'/goods/detail/'+${item.goodsId}}"
                                                       th:text="${item.goodsName}">newbee</a>
                                                </p>
                                            </td>
                                            <td class="col col-price"><p class="price"
                                                                         th:text="${item.sellingPrice+'元 x '+item.goodsCount}">
                                                1299元 × 1</p></td>
                                            <td class="col col-actions">
                                            </td>
                                        </tr>
                                    </th:block>
                                    </tbody>
                                </table>
                            </div>
                            <div id="editAddr" class="order-detail-info">
                                <h3>收货信息</h3>
                                <table class="info-table">
                                    <tbody>
                                    <tr>
                                        <th>收货地址：</th>
                                        <td class="user_address_label"
                                            th:text="${session.newBeeMallUser.address==''?'无':session.newBeeMallUser.address}">
                                            newbee
                                        </td>
                                    </tr>
                                    </tbody>
                                </table>
                                <div class="actions">
                                    <a class="btn btn-small btn-line-gray J_editAddr"
                                       href="javascript:openUpdateModal();">修改</a>
                                </div>
                            </div>
                            <div id="editTime" class="order-detail-info">
                                <h3>支付方式</h3>
                                <table class="info-table">
                                    <tbody>
                                    <tr>
                                        <th>支付方式：</th>
                                        <td>在线支付</td>
                                    </tr>
                                    </tbody>
                                </table>
                                <div class="actions">
                                </div>
                            </div>
                            <div class="order-detail-total">
                                <table class="total-table">
                                    <tbody>
                                    <tr>
                                        <th>商品总价：</th>
                                        <td><span class="num" th:text="${priceTotal+'.00'}">1299.00</span>元</td>
                                    </tr>
                                    <tr>
                                        <th>运费：</th>
                                        <td><span class="num">0</span>元</td>
                                    </tr>
                                    <tr>
                                        <th class="total">应付金额：</th>
                                        <td class="total"><span class="num" th:text="${priceTotal+'.00'}">1299.00</span>元
                                        </td>
                                    </tr>
                                    </tbody>
                                </table>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
        <div class="modal fade" id="personalInfoModal" tabindex="-1" role="dialog"
             aria-labelledby="personalInfoModalLabel">
            <div class="modal-dialog" role="document">
                <div class="modal-content">
                    <div class="modal-header">
                        <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span
                                aria-hidden="true">&times;</span></button>
                        <h6 class="modal-title" id="personalInfoModalLabel">地址修改</h6>
                    </div>
                    <div class="modal-body">
                        <form id="personalInfoForm">
                            <div class="form-group">
                                <input type="hidden" id="userId" th:value="${session.newBeeMallUser.userId}">
                                <label for="address" class="control-label">收货地址:</label>
                                <input type="text" class="form-control" id="address" name="address"
                                       placeholder="请输入收货地址" th:value="${session.newBeeMallUser.address}"
                                       required="true">
                            </div>
                        </form>
                    </div>
                    <div class="modal-footer">
                        <button type="button" class="btn btn-default" data-dismiss="modal">取消</button>
                        <button type="button" class="btn btn-primary" id="saveButton">确认</button>
                    </div>
                </div>
            </div>
        </div>
        <div class="clear"></div>
    </div>
</div>


<div th:replace="mall/footer::footer-fragment"></div>

<!-- jQuery -->
<script th:src="@{/admin/plugins/jquery/jquery.min.js}"></script>
<script th:src="@{/mall/js/search.js}" type="text/javascript"></script>
<script th:src="@{/admin/plugins/sweetalert2/sweetalert2.all.min.js}"></script>
<script th:src="@{/mall/js/bootstrap3.js}"></script>
<script type="text/javascript">
    $('#saveOrder').click(function () {
        var userAddress = $(".user_address_label").html();
        if (userAddress == '' || userAddress == '无') {
            Swal.fire({
                text: "请填写收货信息",
                icon: "error",iconColor:"#f05b72",
            });
            return;
        }
        if (userAddress.trim().length < 10) {
            Swal.fire({
                text: "请输入正确的收货信息",
                icon: "error",iconColor:"#f05b72",
            });
            return;
        }
        window.location.href = '../saveOrder';
    });

    function openUpdateModal() {
        $('#personalInfoModal').modal('show');
    }

    //绑定modal上的保存按钮
    $('#saveButton').click(function () {
        var address = $("#address").val();
        var userId = $("#userId").val();
        var data = {
            "userId": userId,
            "address": address
        };
        $.ajax({
            type: 'POST',//方法类型
            url: '/personal/updateInfo',
            contentType: 'application/json',
            data: JSON.stringify(data),
            success: function (result) {
                if (result.resultCode == 200) {
                    $('#personalInfoModal').modal('hide');
                    window.location.reload();
                } else {
                    $('#personalInfoModal').modal('hide');
                    Swal.fire({
                        text: result.message,
                        icon: "error",iconColor:"#f05b72",
                    });
                }
                ;
            },
            error: function () {
                Swal.fire({
                    text: '操作失败',
                    icon: "error",iconColor:"#f05b72",
                });
            }
        });
    });
</script>
</body>
</html>

此页面中主要渲染的数据有收货信息、商品信息、价格信息等数据，收货信息直接读取session对象中的数据，商品信息获取同购物车中的商品数据获取类似，页面读取myShoppingCartItems数据，使用th:each循环语法将商品信息进行渲染。价格信息中运费为0，总价字段直接读取priceTotal字段。