<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="initial-scale=1.0, user-scalable=no, width=device-width">
<title>下属行政区查询</title>
<link rel="stylesheet" href="https://a.amap.com/jsapi_demos/static/demo-center/css/demo-center.css"/>
<style type="text/css">
html,body,#container{
height:100%;
}
</style>
</head>
<body>
<div id="container"></div>
<div class="input-card">
<h4>下属行政区查询</h4>
<div class="input-item">
<div class="input-item-prepend"><span class="input-item-text" >省市区</span></div>
<select id='province' style="width:100px" onchange='search(this)'></select>
</div>
<div class="input-item">
<div class="input-item-prepend"><span class="input-item-text" >地级市</span></div>
<select id='city' style="width:100px" onchange='search(this)'></select>
</div>
<div class="input-item">
<div class="input-item-prepend"><span class="input-item-text" >区县</span></div>
<select id='district' style="width:100px" onchange='search(this)'></select>
</div>
<div class="input-item">
<div class="input-item-prepend"><span class="input-item-text" >街道</span></div>
<select id='street' style="width:100px" onchange='setCenter(this)'></select>
</div>
</div>
<script type="text/javascript" src="https://webapi.amap.com/maps?v=1.4.15&key=您申请的key值&plugin=AMap.DistrictSearch"></script>
<script type="text/javascript">
var map, district, polygons = [], citycode;
var citySelect = document.getElementById('city');
var districtSelect = document.getElementById('district');
var areaSelect = document.getElementById('street');
map = new AMap.Map('container', {
resizeEnable: true,
center: [116.30946, 39.937629],
zoom: 3
});
//行政区划查询
var opts = {
subdistrict: 1, //返回下一级行政区
showbiz:false //最后一级返回街道信息
};
district = new AMap.DistrictSearch(opts);//注意：需要使用插件同步下发功能才能这样直接使用
district.search('中国', function(status, result) {
if(status=='complete'){
getData(result.districtList[0]);
}
});
function getData(data,level) {
var bounds = data.boundaries;
if (bounds) {
for (var i = 0, l = bounds.length; i < l; i++) {
var polygon = new AMap.Polygon({
map: map,
strokeWeight: 1,
strokeColor: '#0091ea',
fillColor: '#80d8ff',
fillOpacity: 0.2,
path: bounds[i]
});
polygons.push(polygon);
}
map.setFitView();//地图自适应
}
//清空下一级别的下拉列表
if (level === 'province') {
citySelect.innerHTML = '';
districtSelect.innerHTML = '';
areaSelect.innerHTML = '';
} else if (level === 'city') {
districtSelect.innerHTML = '';
areaSelect.innerHTML = '';
} else if (level === 'district') {
areaSelect.innerHTML = '';
}
var subList = data.districtList;
if (subList) {
var contentSub = new Option('--请选择--');
var curlevel = subList[0].level;
var curList = document.querySelector('#' + curlevel);
curList.add(contentSub);
for (var i = 0, l = subList.length; i < l; i++) {
var name = subList[i].name;
var levelSub = subList[i].level;
var cityCode = subList[i].citycode;
contentSub = new Option(name);
contentSub.setAttribute("value", levelSub);
contentSub.center = subList[i].center;
contentSub.adcode = subList[i].adcode;
curList.add(contentSub);
}
}
}
function search(obj) {
//清除地图上所有覆盖物
for (var i = 0, l = polygons.length; i < l; i++) {
polygons[i].setMap(null);
}
var option = obj[obj.options.selectedIndex];
var keyword = option.text; //关键字
var adcode = option.adcode;
district.setLevel(option.value); //行政区级别
district.setExtensions('all');
//行政区查询
//按照adcode进行查询可以保证数据返回的唯一性
district.search(adcode, function(status, result) {
if(status === 'complete'){
getData(result.districtList[0],obj.id);
}
});
}
function setCenter(obj){
map.setCenter(obj[obj.options.selectedIndex].center)
}
</script>
<script type="text/javascript" src="https://webapi.amap.com/demos/js/liteToolbar.js"></script>
</body>
</html>
