ajax请求json数据案例详解


            今天有这样一个需求，点击六个大洲，出现对应的一些请求信息，展示在下面，请求请求过后，第二次点击就无需请求。

如图所示：点击北美洲下面出现请求的一些数据



html代码结构：





<div class="conSixmap">

  <div class="name conmap01" data-name="beimeizhou">

    <a href="javascript:void(0)">北美洲</a>

    <div class="condetail"></div>

  </div>

  <div class="name conmap02" data-name="nanmeizhou">

    <a href="javascript:void(0)">南美洲</a>

    <div class="condetail"></div>

  </div>

  <div class="name conmap03" data-name="ouzhou">

    <a href="javascript:void(0)">欧洲</a>

    <div class="condetail"></div>

  </div>

  <div class="name conmap04" data-name="feizhou">

    <a href="javascript:void(0)">非洲</a>

    <div class="condetail"></div>

  </div>

  <div class="name conmap05" data-name="yazhou">

    <a href="javascript:void(0)">亚洲</a>

    <div class="condetail"></div>

  </div>

  <div class="name conmap06" data-name="dayangzhou">

    <a href="javascript:void(0)">大洋洲</a>

    <div class="condetail"></div>

  </div>

</div> 







css样式：





.conSixmap{position:relative;width:678px;height:335px;margin:0 auto;background:url(../images/tuanduimapBg.png) no-repeat;color:#000;font-family:"微软雅黑"}

.conSixmap .name .condetail{display:none;position:absolute;z-index:10;width:216px;padding:10px;left:50%;margin-left:-118px;top:54px;background:url(../images/opcity83.png) repeat;border-radius:5px;}

.conSixmap .condetail span{display:block;color:#fff;font-size:14px;text-align:left;}

.conSixmap .name{position:absolute;width:52px;height:55px;}

.conSixmap .name a{display:block;z-index:2;position:absolute;padding-top:35px;text-align:center;cursor:pointer;width:52px;height:20px;color:#000;font-size:12px;}

.conSixmap .conmap01{left:91px;top:73px;}

.conSixmap .conmap01 a{background:url(../images/beimeipicBg.png) no-repeat top center;}

.conSixmap .conmap02 {left:180px;top:213px;}

.conSixmap .conmap02 a{background:url(../images/nanmeimapbg.png) no-repeat top center;}

.conSixmap .conmap03 {left:339px;top:68px;}

.conSixmap .conmap03 a{background:url(../images/ouzhoumapBg.png) no-repeat top center;}

.conSixmap .conmap04{left:327px;top:158px;}

.conSixmap .conmap04 a{background:url(../images/feizhoumapbg.png) no-repeat top center;}

.conSixmap .conmap05 {left:480px;top:75px;}

.conSixmap .conmap05 a{background:url(../images/yazhoumapBg.png) no-repeat top center;}

.conSixmap .conmap06 {left:545px;top:220px;}

.conSixmap .conmap06 a{background:url(../images/dayangmapbg.png) no-repeat top center;}



json格式：





{

  "beimeizhou": [

    "请求的json数据1",

    "请求的json数据2"

  ],

  "nanmeizhou": [

    "请求的json数据3",

    "请求的json数据4"

  ],

  "ouzhou": [

    "请求的json数据5",

    "请求的json数据6",

    "请求的json数据7",

    "请求的json数据8"

  ],

  "feizhou": [

    "请求的json数据9",

    "请求的json数据10",

    "请求的json数据11",

    "请求的json数据12"

  ],

  "yazhou": [

    "请求的json数据13",

    "请求的json数据14"

  ],

  "dayangzhou": [

    "请求的json数据15",

    "请求的json数据16"

  ]

}







js代码：





$(document).ready(function(){

  //添加地图

  var stauteArr={

      'beimeizhou':'true',

      'nanmeizhou':'true',

      'ouzhou':'true',

      'feizhou':'true',

      'yazhou':'true',

      'dayangzhou':'true'

    };

  $(".conSixmap .name").on('click',function(){

    var _this=this;

    var htmlcon="";

    $(this).siblings(".name").children(".condetail").fadeOut(500);

    $(this).children(".condetail").fadeIn(500);

    var _name=$(this).attr('data-name');

     $.ajax({

      url:"js/schoolMap.json",

      type:'get',

      data:{},

      dataType:"json",

      success: function(data){

        for(var i in data){

          if(_name==i && stauteArr[i]=='true'){

            for(var j=0;j<data[i].length;j++){

               htmlcon+="<span>"+data[i][j]+"</span>";

            }

            $(_this).children(".condetail").append(htmlcon);

            stauteArr[i]='false';

          }

        }

      },

      error: function(){

        alert('请求失败，请检查网络');

      }

    });

  });

});