This time I will bring you Ajax+json to realize shopping cart settlement. What are the precautions for Ajax+json to realize shopping cart settlement? The following is a practical case, let’s take a look.
<p class="goodsList_menu"> <p class="goodsList"> <p class="goodsListfl"> <input class="fl" style="margin:15px 10px 0 10px;" type="checkbox" name="" /> <ul> <li>全选</li> <li>商品</li> </ul> </p> <p class="goodsListfr fr"> <ul> <li>单价</li> <li class="w100">数量</li> <li class="w100">小计</li> <li>操作</li> </ul> </p> </p> <!--内容--> <p class='goodsListbox'></p> <p class="checkout"> <p class="checkoutleft"> <input class="fl" style="margin:21px 10px 0 10px;" type="checkbox" name="" /> <ul> <li>全选</li> <li>删除选中产品</li> </ul> </p> <p class="checkoutright fr"> <span>总价:<b>¥</b></span><span class="checkoutSum">0</span> <input type="button" value="去结算" /> </p> </p> </p>
body,html,ul,li,a{ margin:0;padding:0;font-family:"microsoft yahei";list-style:none;text-decoration:none; } .fl{ float:left; } .fr{ float:right; } .f12{ font-size:12px; } .disl{ display:inline-block; } .w100{ width:100px; } .fw{ font-weight:bold; } .goodsList_menu{ width:990px;height:45px;background:#f3f3f3;margin:0 auto;line-height:45px; font-size:14px;color:#333;border:1px solid #ddd; } .goodsList_menu .goodsListfl ul li{ float:left;margin-right:80px;cursor:pointer; } .goodsList_menu .goodsListfr ul li{ float:left;margin-right:37px;text-align:center;cursor:pointer; } /*内容*/ .goodsList_content{ width:100%;height:80px;border-bottom:1px solid #eee;padding:20px 0;margin-top:40px; } .goodsList_content .disl{ line-height:20px;width:300px;cursor:pointer;margin-left:10px; } .goodsList_content .disl span:hover{ color:#e4393c; } .goodsList_content .disl p:hover{ color:#e4393c; } .goodsListnum .listNum{ widows:45px;height:21px;width:50px;border:1px solid #eee;text-align:center; outline:none; } .goodsListnum ul li{ float:left;margin-right:30px;text-align:center;cursor:pointer; } .goodsListnum ul li a{ border:1px solid #ddd;padding:2px 7px;color:#000; } .goodsListnum ul li p{ line-height:0;color:#666;font-size:12px;margin-top:-2px; } .buy_goods p{ background:url(../images/arrow.png)no-repeat;padding-left:30px;background-position:-20px -20px; } .buy_goods{ position:relative; } /*底部结账*/ .checkout{ height:55px;border:1px solid #eee;margin-top:20px;line-height:55px; } .checkout .checkoutleft ul li{ float:left;margin-right:10px;cursor:pointer; } .checkout .checkoutSum{ font-weight:bold;font-size:18px;color:#e64346; } .checkout .checkoutright input{ border:none;color:#fff;outline:none;width:100px;height:55px;line-height:55px; font-size:20px;background:#e64346;margin-left:50px;cursor:pointer; }
<script> $.ajax({ type:"get", url:"jd.json", dataType:"json", success:function(data){ var list = data.list;//拿到list数组 //console.log(list); for(var i=0;i<list.length;i++){ var numArray = list[i]; numArray.price = (numArray.price).toFixed(2); var text = "<p class='goodsList_content'><p class='fl buy_goods'>"+ "<input class='fl' style='margin:15px 10px 0 10px;' type='checkbox' name='' />"+ "<img align='top' src='images/1.jpg' /><p class='disl'>"+ "<span>"+numArray.description+"</span><p class='f12'>购买礼品服务</p></p>"+ "<p class='disl' style='width:auto;position:absolute;right:-100px;top:0;'>"+ "<span>"+numArray.color+"</span></p></p>"+ "<p class='fr goodsListnum' style='margin-top:-12px;'>"+ "<ul><li><b>¥</b><span class='fw'>"+numArray.price+"</span></li>"+ "<li class='w100'><a class='minus' onClick='minus(this);' href='javascript:void(0);'>-</a>"+ "<input value='1' class='listNum' /><a class='add' onClick='add(this)' href='javascript:void(0);'>+</a><p>有货</p></li>"+ "<li class='w100'><b>¥</b><span id='sub' class='fw'>"+numArray.price*numArray.quentity+"</span></li>"+ "<li><a style='border:none;color:#666;' href='javascript:void(0);'>删除</a></li>"+ "</ul></p></p>" $(text).appendTo(".goodsListbox"); } }, error:function(){ console.log("调用数据失败!"); } }); var listNum,price,sums,sub1,sub2; function add(obj){ listNum = $(obj).prev().val();//input值 listNum = parseInt(listNum); var num = parseInt(listNum+1);//input值每次+1 $(obj).prev().val(num); price = $(obj).parent().prev().children('span').text();//找到单价 price = parseInt(price);//转换成number类型 price = price.toFixed(2); sums = $(obj).parent().next().children('span').text()//找到总金额 sums = parseInt(sums); console.log(typeof sums); $(obj).parent().next().children('span').text(price*num); sub1 = $(".goodsList_content:eq(0)").find("#sub").text(); sub2 = $(".goodsList_content:eq(1)").find("#sub").text(); sub1 = parseInt(sub1); sub2 = parseInt(sub2); var res = $(".checkoutright .checkoutSum").text((sub1+sub2).toFixed(2)); } function minus(obj){ listNum = $(obj).next().val(); listNum = parseInt(listNum); if(listNum<=1){ listNum==1; }else{ --listNum; } $(obj).next().val(listNum); price = $(obj).parent().prev().children('span').text();//找到单价 price = parseInt(price);//转换成number类型 price = price.toFixed(2); sums = $(obj).parent().next().children('span').text()//找到总金额 sums = parseInt(sums); $(obj).parent().next().children('span').text(price*listNum); $(".checkoutright .checkoutSum").text(price*listNum); sub1 = $(".goodsList_content:eq(0)").find("#sub").text(); sub2 = $(".goodsList_content:eq(1)").find("#sub").text(); sub1 = parseInt(sub1); sub2 = parseInt(sub2); $(".checkoutright .checkoutSum").text(sub1+sub2); } </script>
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