HTML5实现购物车本地存储功能

这篇文章主要介绍了HTML5 本地存储实现购物车功能的相关资料,需要的朋友可以参考下

  var pid = $("#hidpid").val();
        var color = $("#Procolor").val();
        var num2 = $("#spanNum").html(); //????
        var bat = { "num": num2, "pid": pid, "pcolor": color };
        var batString = JSON.stringify(bat);
        var keyName = "bat" + pid;
        for (var i = 0; i < localStorage.length; i++) {
            if (localStorage.key(i) == keyName) {
                localStorage.removeItem(keyName);
            }
        }
        localStorage.setItem("bat"+pid, batString); 

  $(function () {
                for (var i = 0; i < localStorage.length; i++) {
                    var localValue = localStorage.getItem(localStorage.key(i));
                    var key = localStorage.key(i);
                    if (key != "bat"&&key.indexOf("bat")>=0) {
                        var obj = $.parseJSON(localValue);
                        var pid = obj.pid;
                        var num = obj.num;
                        var color = obj.pcolor;
                        console.log("商品ID："+pid + "商品数量：" + num + "商品颜色：" + color);
                    }
                }
            }); 

 $(function () {
                var carAry=new Array();
                for (var i = 0; i < localStorage.length; i++) {
                    var key = localStorage.key(i);
                    var localValue = localStorage.getItem(key);
                    if (key != "bat"&&key.indexOf("bat")>=0) {
                        var obj = $.parseJSON(localValue);
                        //var pid = obj.pid;
                        //var num = obj.num;
                        //var color = obj.pcolor;
                        //console.log("商品ID：" + pid + "商品数量：" + num + "商品颜色：" + color);
                        carAry.push(obj);
                      
                    }
                }
                //alert(carAry.length);
                var bat = { "carAry": carAry };
                $.post("/home/GetCarInfo", bat, function (data) {
                    $("#buycar").html(data);
                });

                $.post("/home/GetCarInfo2", bat, function (data) {
                    var AryStr = new Array();
                    AryStr = data.split('_');
    
                    $("#tops").html('<p>合计：￥' + AryStr[0] + '元</p><span>(共' + AryStr[1] + '件，不含运费)</span>')
                });

            }); 

   [HttpPost]
        public string GetCarInfo(Dictionary<string,string>[] carAry)
        {
            UserCarModel model = new UserCarModel();

            return model.GetCarInfo(carAry);
        }

        [HttpPost]
        public string GetCarInfo2(Dictionary<string, string>[] carAry)
        {
            UserCarModel model = new UserCarModel();

            return model.GetCarInfo(carAry,1);
        } 

  public string GetCarInfo(Dictionary<string, string>[] carAry,int i=0)
        {
            System.Text.StringBuilder sb = new System.Text.StringBuilder("");
            double sum = 0.00;
            if (i == 0)
            {
                //加载购物车
                if (carAry != null && carAry.Length > 0)
                {
                    sb.Append("<ul>");
                    foreach (var item in carAry)
                    {
                        string pid = item["pid"];
                        string num = item["num"];
                        string pcolor = item["pcolor"];
                        productMol = bll.GetModel(Convert.ToInt32(pid));
                        string picPath = getMainpic(productMol.mainPicNum);
                        sb.Append(@"<li class='clear-both'>
                    <p class='proInfo'>
                        <p class='thumb'>
                            <img src='" + picPath + @"' /></p>
                        <p class='desc clear-both'>
                            <p>" + productMol.productName + @"</p>
                            <small>颜色分类：" + pcolor + @"</small>
                            <span>￥" + Convert.ToDouble(productMol.shopprice).ToString("0.00") + @"</span>
                            <p class='ctrl-p'>
                                <p class='jian'></p>
                                <p class='num'>" + num + @"</p>
                                <p class='jia'></p>
                            </p>
                        </p>
                    </p>
                </li>");
                    }
                    sb.Append("</ul>");
                }
                else
                {
                    sb.Append("<ul><li onclick='gobuy2()'>请选择所需购买的商品</li><br/></ul>");
                }
            }
            else
            {
                //计算总金额和商品数量
                if (carAry != null && carAry.Length > 0)
                {
                    foreach (var item in carAry)
                    {
                        string pid = item["pid"];
                        string num = item["num"];
                        productMol = bll.GetModel(Convert.ToInt32(pid));
                        sum += Convert.ToDouble(productMol.shopprice) * Convert.ToDouble(num);
                    }
                }
                sb.Append(sum.ToString("0.00") + "_" + carAry.Length);
            }
            return sb.ToString();
        } 

效果图如下：

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