<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0,maximum-scale=1.0,user-scalable=no">
<title>Title</title>
</head>
<body>
您目前在<p></p>
</body>
<script>
//定义一个空的位置构造函数
function Location(){};
//定义一个可以获得经纬度的方法
Location.prototype.getLocation = function(callback){
var options = {
enableHighAccuracy: true,
maximumAge: 1000
};
this.callback = Object.prototype.toString.call(callback) =="[object Function]" ?
callback :
function(address){
alert(address.province + address.city);
console.log("getocation(callbackFunction) 可获得定位信息对象");
};
var self = this;
if (navigator.geolocation) {
//浏览器支持geolocation
navigator.geolocation.getCurrentPosition(function(position){
//经度
var longitude = position.coords.longitude;
//纬度
var latitude = position.coords.latitude;
self.loadMapApi(longitude,latitude);
}, self.onError, options);
} else {
//浏览器不支持geolocation
}
};
//定义一个可以解析经纬度的方法，调用百度的api
Location.prototype.loadMapApi = function(longitude, latitude){
var self = this;
var oHead = document.getElementsByTagName('HEAD').item(0);
var oScript= document.createElement("script");
oScript.type = "text/javascript";
oScript.src="http://api.map.baidu.com/getscript?v=2.0&ak=A396783ee700cfdb9ba1df281ce36862&services=&t=20140930184510";
oHead.appendChild(oScript);
oScript.onload = function(date){
var point = new BMap.Point(longitude, latitude);
var gc = new BMap.Geocoder();
gc.getLocation(point, function(rs) {
var addComp = rs.addressComponents;
self.callback(addComp);
});
}
};
//定义出现查询位置出现意外的方法
Location.prototype.onError = function(error) {
switch (error.code) {
case 1:
alert("位置服务被拒绝");
break;
case 2:
alert("暂时获取不到位置信息");
break;
case 3:
alert("获取信息超时");
break;
case 4:
alert("未知错误");
break;
}
};
//调用
var local = new Location();
local.getLocation(function(res){
var str=""
for(i in res ){
str=res[i]+str
}
document.querySelector("p").innerHTML=str;
})
</script>
</html>
