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');
      }
    });
  });
});