SSM项目之商铺系统-前端展示系统之商铺详情页开发(十九)

当我们点击某个商铺就进入了店铺详情页。

我们先看看效果

我们发现和之前开发的店铺列表展示很相似。

那么也是由两个模块构成的

第一个：获取商品类别列表

第二个：获取商品列表

我们先来完成第一个商品类别列表

  /*
    * 店铺信息和该店铺下面的商品类别列表
    * */
    @RequestMapping(value = "/listshopdetailpageinfo" ,method=RequestMethod.GET)
    @ResponseBody
    private Map<String,Object> listShopDetailPageInfo(HttpServletRequest request){
        Map<String,Object> modelMap=new HashMap<String,Object>();
        long shopId= HttpServletRequestUtil.getLong(request,"shopId");//获取店铺信息和店铺下的商品类型所用的数据
        List<ProductCategory> productCategoryList=null;//存储商品类别列表
        Shop shop=null;//存储商铺详情信息
        try{

            if (shopId>-1){
               //先求商铺的详情信息
                shop=shopService.getByShopId(shopId);
                modelMap.put("shop",shop);//存储商铺详情信息
                //求商品类型列表
                productCategoryList=productCategoryService.getProductCategoryList(shopId);
                modelMap.put("productCategoryList",productCategoryList);
                modelMap.put("success",true);
            }
        }catch (Exception e){
            modelMap.put("success",false);
            modelMap.put("errMsg",e.getMessage());
            return modelMap;
        }
        return modelMap;
    }

 第一步：获取商铺id

第二步：当shopId不非法时，我们根据shopId查询商铺列表

第三步：存入map交给前端

view层和另一个模块一起实现最后说

接下来实现商品展示页面：

Controller

/*
     * 通过查询条件分页获取商品信息
     * */
    @RequestMapping(value = "/listproductsbyshop" ,method=RequestMethod.GET)
    @ResponseBody
    private Map<String,Object> listProductsByShop(HttpServletRequest request){
        Map<String,Object> modelMap=new HashMap<String,Object>();
        //获取分页信息
        int pageIndex=HttpServletRequestUtil.getInt(request,"pageIndex");
        int pageSize=HttpServletRequestUtil.getInt(request,"pageSize");
        Product productCondition;//存储查询条件用
        ProductExecution productExecution=null;//存储查出来的商品信息
        try{
            if (pageIndex>-1&&pageSize>-1){//判断页码是否符合逻辑
                //获取查询条件
                long shopId= HttpServletRequestUtil.getLong(request,"shopId");//获取店铺ID
                long productCategoryId=HttpServletRequestUtil.getLong(request,"productCategoryId");
                String productName=HttpServletRequestUtil.getString(request,"productName");
               productCondition=compactProductCondition4Search(shopId,productCategoryId,productName);//组合出通过条件查询的内容
                productExecution=productService.queryProductList(productCondition,pageIndex,pageSize);
                modelMap.put("productList",productExecution.getProductList());
                modelMap.put("count",productExecution.getCount());
                modelMap.put("success",true);
            }else {
                modelMap.put("success",false);
                modelMap.put("errMsg","page not corrent");
                return modelMap;
            }
        }catch (Exception e){
            modelMap.put("success",false);
            modelMap.put("errMsg",e.getMessage());
            return modelMap;
        }
        return modelMap;
    }

    private Product compactProductCondition4Search(long shopId, long productCategoryId, String productName) throws UnsupportedEncodingException {
        Product productCondition=new Product();
        if (shopId>-1){
            Shop shop=new Shop();
            shop.setShopId(shopId);//设置shopid
            productCondition.setShop(shop);
        }
        //判断productCategoryId如果这个参数有值，代表我们通过二级商铺类型查找店铺
        if (productCategoryId>-1){
       ProductCategory productCategory=new ProductCategory();
       productCategory.setProductCategoryId(productCategoryId);
       productCondition.setProductCategory(productCategory);
        }
        //判断productName是否有值
        if (productName!=null){
            productName= new String(productName.getBytes("ISO-8859-1"), "UTF-8");
            productCondition.setProductName(productName);
        }
        // 查询状态为审核通过的商铺
        productCondition.setEnableStatus(1);
        return  productCondition;
    }

通过接受到的条件进行product的条件查询，返回列表，同时是分页查询，这些条件其实就是我们点击商品列表时或者输入商品名字传入的。

我们还要定义一个路由转发到新的html页面

view层：

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <title>商店详情</title>
    <meta name="viewport" content="initial-scale=1, maximum-scale=1">
    <link rel="shortcut icon" href="/favicon.ico">
    <meta name="apple-mobile-web-app-capable" content="yes">
    <meta name="apple-mobile-web-app-status-bar-style" content="black">
    <link rel="stylesheet"
          href="//g.alicdn.com/msui/sm/0.6.2/css/sm.min.css">
    <link rel="stylesheet"
          href="//g.alicdn.com/msui/sm/0.6.2/css/sm-extend.min.css">
    <link rel="stylesheet" href="../resources/css/frontend/shopdetail.css">
</head>
<body>
<div class="page-group">
    <div class="page">
        <header class="bar bar-nav">
            <a class="button button-link button-nav pull-left" external href="#"
               onClick="javascript :history.back(-1);" data-transition='slide-out'>
                <span class="icon icon-left"></span> 返回
            </a>
            <h1 class="title" id="shop-name">店铺详情</h1>
            <!-- 				<a class="button button-link button-nav pull-right" external
                href="#" id="exchangelist" data-transition='slide-out'> 奖品兑换 <span
                class="icon icon-right"></span>
            </a> -->
        </header>
        <nav class="bar bar-tab">
            <a class="tab-item" href="/storepro/frontend/index" external> <span
                    class="icon icon-home"></span> <span class="tab-label">首页</span>
            </a> <a class="tab-item" href="#" id="me"> <span
                class="icon icon-me"></span> <span class="tab-label">我</span>
        </a>
        </nav>
        <div class="content infinite-scroll infinite-scroll-bottom"
             data-distance="100">
            <!-- 这里是页面内容区 -->
            <div class="shop-detail-dev">
                <div class="card">
                    <div valign="bottom"
                         class="card-header color-white no-border no-padding">
                        <img class='card-cover' id="shop-cover-pic" src="" alt="">
                    </div>
                    <div class="card-content">
                        <div class="card-content-inner">
                            <p class="color-gray">
                                <span id="shop-update-time"></span>
                            </p>
                            <p id="shop-desc"></p>
                        </div>
                    </div>
                    <div class="card-footer">
                        <span id="shop-addr"></span> <span id="shop-phone"></span>
                    </div>
                </div>
            </div>
            <!-- 商品类别列表展示区 -->
            <div class="shopdetail-button-div" id="shopdetail-button-div">
                <!-- <a href="#" class="button">所有货物</a>
                    <a href="#" class="button">吃的</a>
                    <a href="#" class="button">喝的</a>
                    <a href="#" class="button">Usual Button 1</a>
                    <a href="#" class="button">Usual Button 1</a>
                    <a href="#" class="button">Usual Button 1</a> -->
            </div>
            <!-- 商品名字搜索区 -->
            <div class="detail-search">
                <div class="searchbar">
                    <a class="searchbar-cancel">取消</a>
                    <div class="search-input">
                        <label class="icon icon-search" for="search"></label> <input
                            type="search" id='search' placeholder='输入关键字...' />
                    </div>
                </div>
            </div>
            <!-- 商品列表展示区 -->
            <div class="list-div">
                <!-- <div class="card">
                        <div class="card-header">传统火锅店</div>
                        <div class="card-content">
                            <div class="list-block media-list">
                                <ul>
                                    <li class="item-content">
                                        <div class="item-media">
                                            <img src="http://gqianniu.alicdn.com/bao/uploaded/i4//tfscom/i3/TB10LfcHFXXXXXKXpXXXXXXXXXX_!!0-item_pic.jpg_250x250q60.jpg" width="44">
                                        </div>
                                        <div class="item-inner">
                                            <div class="item-subtitle"></div>
                                        </div>
                                    </li>
                                </ul>
                            </div>
                        </div>
                        <div class="card-footer">
                            <span>2015/01/15</span>
                            <span>5 评论</span>
                        </div>
                    </div> -->
            </div>
            <div class="infinite-scroll-preloader">
                <div class="preloader"></div>
            </div>
        </div>
    </div>

    <!--侧边栏  -->
    <div class="panel-overlay"></div>
    <div class="panel panel-right panel-reveal" id="panel-right-demo">
        <div class="content-block">
            <p>
                <a href="/storepro/local/accountbind?usertype=1" class="close-panel">绑定帐号</a>
            </p>
            <p>
                <a href="/storepro/local/changepsw?usertype=1" class="close-panel">修改密码</a>
            </p>
            <p>
                <a href="/storepro/frontend/myrecord" class="close-panel">消费记录</a>
            </p>
            <p>
                <a href="/storepro/frontend/mypoint" class="close-panel">我的积分</a>
            </p>
            <p>
                <a href="/storepro/frontend/pointrecord" class="close-panel">兑换记录</a>
            </p>
            <p>
                <a href="#" usertype="1" class="close-panel" id="log-out">登出系统</a>
            </p>
            <!-- Click on link with "close-panel" class will close panel -->
        </div>
    </div>
</div>


<script type='text/javascript'
        src='//g.alicdn.com/sj/lib/zepto/zepto.min.js' charset='utf-8'></script>
<script type='text/javascript'
        src='//g.alicdn.com/msui/sm/0.6.2/js/sm.min.js' charset='utf-8'></script>
<script type='text/javascript'
        src='//g.alicdn.com/msui/sm/0.6.2/js/sm-extend.min.js' charset='utf-8'></script>
<script type='text/javascript' src='../resources/js/common/common.js'
        charset='utf-8'></script>
<script type='text/javascript'
        src='../resources/js/frontend/shopdetail.js' charset='utf-8'></script>
<script type='text/javascript' src='../resources/js/local/login.js'
        charset='utf-8'></script>
</body>
</html>

$(function() {
    var loading = false;
    // 分页允许返回的最大条数，超过此数则禁止访问后台
    var maxItems = 20;
    // 默认一页返回的商品数
    var pageSize = 3;
    // 列出商品列表的URL
    var listUrl = '/storepro/frontend/listproductsbyshop';
    // 默认的页码
    var pageNum = 1;
    // 从地址栏里获取ShopId
    var shopId = getQueryString('shopId');
    var productCategoryId = '';
    var productName = '';
    // 获取本店铺信息以及商品类别信息列表的URL
    var searchDivUrl = '/storepro/frontend/listshopdetailpageinfo?shopId=' + shopId;
    // 渲染出店铺基本信息以及商品类别列表以供搜索
    getSearchDivData();
    // 预先加载10条商品信息
    addItems(pageSize, pageNum);

    // 给兑换礼品的a标签赋值兑换礼品的URL，2.0使用
    // $('#exchangelist').attr('href', '/storepro/frontend/awardlist?shopId=' +
    // shopId);
    // 获取本店铺信息以及商品类别信息列表
    function getSearchDivData() {
        var url = searchDivUrl;
        $
            .getJSON(
                url,
                function(data) {
                    if (data.success) {
                        var shop = data.shop;
                        $('#shop-cover-pic').attr('src', shop.shopImg);
                        $('#shop-update-time').html(
                            new Date(shop.lastEditTime)
                                .Format("yyyy-MM-dd"));
                        $('#shop-name').html(shop.shopName);
                        $('#shop-desc').html(shop.shopDesc);
                        $('#shop-addr').html(shop.shopAddr);
                        $('#shop-phone').html(shop.phone);
                        // 获取后台返回的该店铺的商品类别列表
                        var productCategoryList = data.productCategoryList;
                        var html = '';
                        // 遍历商品列表，生成可以点击搜索相应商品类别下的商品的a标签
                        productCategoryList
                            .map(function(item, index) {
                                html += '<a href="#" class="button" data-product-search-id='
                                    + item.productCategoryId
                                    + '>'
                                    + item.productCategoryName
                                    + '</a>';
                            });
                        // 将商品类别a标签绑定到相应的HTML组件中
                        $('#shopdetail-button-div').html(html);
                    }
                });
    }
    /**
     * 获取分页展示的商品列表信息
     *
     * @param pageSize
     * @param pageIndex
     * @returns
     */
    function addItems(pageSize, pageIndex) {
        // 拼接出查询的URL，赋空值默认就去掉这个条件的限制，有值就代表按这个条件去查询
        var url = listUrl + '?' + 'pageIndex=' + pageIndex + '&pageSize='
            + pageSize + '&productCategoryId=' + productCategoryId
            + '&productName=' + productName + '&shopId=' + shopId;
        // 设定加载符，若还在后台取数据则不能再次访问后台，避免多次重复加载
        loading = true;
        // 访问后台获取相应查询条件下的商品列表
        $.getJSON(url, function(data) {
            if (data.success) {
                // 获取当前查询条件下商品的总数
                maxItems = data.count;
                var html = '';
                // 遍历商品列表，拼接出卡片集合
                data.productList.map(function(item, index) {
                    html += '' + '<div class="card" data-product-id='
                        + item.productId + '>'
                        + '<div class="card-header">' + item.productName
                        + '</div>' + '<div class="card-content">'
                        + '<div class="list-block media-list">' + '<ul>'
                        + '<li class="item-content">'
                        + '<div class="item-media">' + '<img src="'
                        + item.imgAddr + '" width="44">' + '</div>'
                        + '<div class="item-inner">'
                        + '<div class="item-subtitle">' + item.productDesc
                        + '</div>' + '</div>' + '</li>' + '</ul>'
                        + '</div>' + '</div>' + '<div class="card-footer">'
                        + '<p class="color-gray">'
                        + new Date(item.lastEditTime).Format("yyyy-MM-dd")
                        + '更新</p>' + '<span>点击查看</span>' + '</div>'
                        + '</div>';
                });
                // 将卡片集合添加到目标HTML组件里
                $('.list-div').append(html);
                // 获取目前为止已显示的卡片总数，包含之前已经加载的
                var total = $('.list-div .card').length;
                // 若总数达到跟按照此查询条件列出来的总数一致，则停止后台的加载
                if (total >= maxItems) {
                    // 隐藏提示符
                    $('.infinite-scroll-preloader').hide();
                } else {
                    $('.infinite-scroll-preloader').show();
                }
                // 否则页码加1，继续load出新的店铺
                pageNum += 1;
                // 加载结束，可以再次加载了
                loading = false;
                // 刷新页面，显示新加载的店铺
                $.refreshScroller();
            }
        });
    }

    // 下滑屏幕自动进行分页搜索
    $(document).on('infinite', '.infinite-scroll-bottom', function() {
        if (loading)
            return;
        addItems(pageSize, pageNum);
    });
    // 选择新的商品类别之后，重置页码，清空原先的商品列表，按照新的类别去查询
    $('#shopdetail-button-div').on(
        'click',
        '.button',
        function(e) {
            // 获取商品类别Id
            productCategoryId = e.target.dataset.productSearchId;
            if (productCategoryId) {
                // 若之前已选定了别的category,则移除其选定效果，改成选定新的
                if ($(e.target).hasClass('button-fill')) {
                    $(e.target).removeClass('button-fill');
                    productCategoryId = '';
                } else {
                    $(e.target).addClass('button-fill').siblings()
                        .removeClass('button-fill');
                }
                $('.list-div').empty();
                pageNum = 1;
                addItems(pageSize, pageNum);
            }
        });
    // 点击商品的卡片进入该商品的详情页
    $('.list-div').on(
        'click',
        '.card',
        function(e) {
            var productId = e.currentTarget.dataset.productId;
            window.location.href = '/storepro/frontend/productdetail?productId='
                + productId;
        });
    // 需要查询的商品名字发生变化后，重置页码，清空原先的商品列表，按照新的名字去查询
    $('#search').on('change', function(e) {
        productName = e.target.value;
        $('.list-div').empty();
        pageNum = 1;
        addItems(pageSize, pageNum);
    });
    // 点击后打开右侧栏
    $('#me').click(function() {
        $.openPanel('#panel-right-demo');
    });
    $.init();
});

.detail-search {
    height: 2.2rem;
    padding-right: .5rem;
    padding-left: .5rem;
    background-color: #f7f7f8;
}
.infinite-scroll-preloader {
    margin-top: -5px;
}
.shopdetail-button-div {
    margin: 0 .3rem;
}
.shopdetail-button-div > .button {
    width: 30%;
    height: 1.5rem;
    line-height: 1.5rem;
    display: inline-block;
    margin: 1%;
    overflow: hidden;
}