jQuery实例之ajax请求json数据案例

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');
        
        //当前请求过后不需要请求
        if(stauteArr[_name] =='false'){
            return;
        }
          $.ajax({
            url:"js/schoolMap.json",
            type:'get',
            data:{},
            dataType:"json",
            success: function(data){
                for(var i in data){
                    if(_name==i){
                        console.log(data[i]);
                        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');
            }
        });
 
    });
});

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