Using Ajax and json to implement data interaction example of JD shopping cart settlement interface (graphic tutorial)

This article mainly introduces the data interaction example of using Ajax and json to realize the Jingdong shopping cart settlement interface. It is very good and has reference value. Friends in need can refer to it

<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=&#39;goodsListbox&#39;></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=&#39;goodsList_content&#39;><p class=&#39;fl buy_goods&#39;>"+
         "<input class=&#39;fl&#39; style=&#39;margin:15px 10px 0 10px;&#39; type=&#39;checkbox&#39; name=&#39;&#39; />"+
         "<img align=&#39;top&#39; src=&#39;images/1.jpg&#39; /><p class=&#39;disl&#39;>"+
         "<span>"+numArray.description+"</span><p class=&#39;f12&#39;>购买礼品服务</p></p>"+
         "<p class=&#39;disl&#39; style=&#39;width:auto;position:absolute;right:-100px;top:0;&#39;>"+
         "<span>"+numArray.color+"</span></p></p>"+
         "<p class=&#39;fr goodsListnum&#39; style=&#39;margin-top:-12px;&#39;>"+
         "<ul><li><b>￥</b><span class=&#39;fw&#39;>"+numArray.price+"</span></li>"+
         "<li class=&#39;w100&#39;><a class=&#39;minus&#39; onClick=&#39;minus(this);&#39; href=&#39;javascript:void(0);&#39;>-</a>"+
         "<input value=&#39;1&#39; class=&#39;listNum&#39; /><a class=&#39;add&#39; onClick=&#39;add(this)&#39; href=&#39;javascript:void(0);&#39;>+</a><p>有货</p></li>"+
         "<li class=&#39;w100&#39;><b>￥</b><span id=&#39;sub&#39; class=&#39;fw&#39;>"+numArray.price*numArray.quentity+"</span></li>"+
         "<li><a style=&#39;border:none;color:#666;&#39; href=&#39;javascript:void(0);&#39;>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(&#39;span&#39;).text();//找到单价
    price = parseInt(price);//转换成number类型
    price = price.toFixed(2);
    sums = $(obj).parent().next().children(&#39;span&#39;).text()//找到总金额
    sums = parseInt(sums);
    console.log(typeof sums);
    $(obj).parent().next().children(&#39;span&#39;).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(&#39;span&#39;).text();//找到单价
    price = parseInt(price);//转换成number类型
    price = price.toFixed(2);
    sums = $(obj).parent().next().children(&#39;span&#39;).text()//找到总金额
    sums = parseInt(sums);
    $(obj).parent().next().children(&#39;span&#39;).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>

The above is what I compiled for everyone. I hope it will be helpful to everyone in the future.

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