jquery异步加载json格式的数据
内容导读
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内容图文
1.直接使用$.getJSON()方法是加载不了与静态界面同级别的本地的json后缀的文件。
2.解决办法：将json后缀的文件改为js后缀，这样就相当于加载了一个js文件。
解决办法：用$.getScript()方法加载后是以字符串的形式进行展示，所以需要eval()方法来将其转换成js对象。然后用了两个each方法进行遍历json数据。第二个遍历的数据是在第一个each数据的基础上进行的。
$.getScript("data_citys.js", function (data) {
data = eval(customhouse);
$.each(data.childCustomHouse, function (i, Province) {
$(".cityChoice dl").append("<dt><a>" + Province.province + "</a></dt>")
var child="<dd>"
$.each(Province.children, function (i, City) {
child +="<a>"+ City.city+"</a>";
})
child + "</dd>";
$(".cityChoice dl").append(child);
})
$(".cityChoice div span").eq(0).html(data.name).css("font-weight","bolder");
});
var customhouse = {
"name": "海关总署", "childCustomHouse": [
{
"province": "北京市", "children": [
{
"city": "北京市海关总署", "x": "12957140.380859", "y": "4854144.165039"
}]
},
{
"province": "天津市", "children": [
{
"city": "天津市海关总署", "x": "12957140.380859", "y": "4854144.165039"
}]
},
{
"province": "江苏", "children": [
{
"city": "南京市海关总署", "x": "13055615.060171", "y": "3745556.395213"
},
{
"city": "镇江市海关总署", "x": "13055615.060171", "y": "3745556.395213"
},
{
"city": "绵阳市海关总署", "x": "13055615.060171", "y": "3745556.395213"
}
]
},
{
"province": "安徽", "children": [
{ "city": "合肥市海关总署", "x": "13055615.060171", "y": "3745556.395213" },
{ "city": "芜湖市海关总署", "x": "13183825.746076", "y": "3678993.560791" },
{ "city": "蚌埠市海关总署", "x": "13066652.737935", "y": "3886469.977061" },
{ "city": "淮南市海关总署", "x": "13026305.769898", "y": "3848394.533793" }
]
},
{
"province": "福建", "children": [
{
"city": "福州市海关总署", "x": "13282472.555124", "y": "3003024.419825"
},
{
"city": "厦门市海关总署", "x": "13151164.550781", "y": "2812705.973307"
},
{
"city": "莆田市海关总署", "x": "13251984.653919", "y": "2929572.716987"
},
{
"city": "三明市海关总署", "x": "13094264.471760", "y": "3031771.614174"
},
{
"city": "泉州市海关总署", "x": "13200734.863281", "y": "2864382.832845"
},
{
"city": "漳州市海关总署", "x": "13099124.569548", "y": "2816127.438863"
}
]
},
{
"province": "广东", "children": [
{
"city": "广州市海关总署", "x": "12608484.375000", "y": "2647840.698242"
},
{
"city": "韶关市海关总署", "x": "12646207.153320", "y": "2846280.680339"
},
{
"city": "深圳市海关总署", "x": "12694429.199219", "y": "2580002.807617"
},
{
"city": "珠海市海关总署", "x": "12640819.107056", "y": "2541664.703369"
},
{
"city": "汕头市海关总署", "x": "12993460.866292", "y": "2677990.234375"
},
{
"city": "佛山市海关总署", "x": "12593796.875000", "y": "2630399.291992"
},
{
"city": "江门市海关总署", "x": "12587870.239258", "y": "2582043.375651"
},
{
"city": "东莞市海关总署", "x": "12664480.468750", "y": "2634828.491211"
},
{
"city": "中山市海关总署", "x": "12620242.502848", "y": "2574047.007243"
},
{
"city": "潮州市海关总署", "x": "12983319.702148", "y": "2711945.037842"
}
]
}
]
}
<
div
class
="city"
>
<
button
>南京市</button><span></span><div class="cityChoice hide"><a class="close"><span aria-hidden="true">×</span></a><div><span></span>  当前城市:<span>信阳市</span> <a>设为默认城市</a></div><hr /><dl></dl></div></div>
.city {
position:absolute;left:10px;top:20px;}
.city button {
background-color:#fff;border:1px solid #eee;
padding:0 22px;height:40px;
}
.city > span {
background:url(../images/search.png) -152px 30px;display: inline-block;
width: 20px;
height: 20px;
/* margin-left: 30px; */
position: relative;
/* position: absolute; */
left: -20px;
top: 7px;
}
.city .cityChoice{
width:300px;max-height:370px;overflow-y:auto;
background-color:#fff;
border:2px solid #ddd; padding: 10px;
box-sizing: border-box;
position: absolute;
left: 1px;
font-size:12px;
}
.cityChoice >div a{color:#137fab; cursor:pointer;}
.close {
position: absolute;
top: 5px;
right: 15px;
border: none;
background: none;
font-size: 16px;
font-weight:bold;
color: #999;
display: block;
cursor: pointer;
}
.cityChoice >div{text-align:left;margin:5px;margin-top:12px;}
.city div dt, .city div dd{text-align:left; cursor:pointer;}
.city div dt a {
float:left;display:inline-block;font-weight:bold; padding:3px;}
.city div dd{margin-left:60px;}
.city div dd a{
padding:3px 7px;display:inline-block;}
.city div dd a:hover{color:#1b5fac;}
原文：http://www.cnblogs.com/pengpenglin/p/4912060.html
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