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Detailed explanation of obtaining the current geographical location case using JS
- php中世界最好的语言Original
- 2018-04-17 09:31:221808browse
This time I will bring you a detailed explanation of the case of JS getting the current geographical location. What are the precautions for JS getting the current geographical location. The following is a practical case, let's take a look.
1. Mobile phone positioning
var getLocation = function (successFunc, errorFunc) {
//successFunc获取定位成功回调函数，errorFunc获取定位失败回调
//首先设置默认城市
var defCity = {
id: '000001',
name: '北京市',
date: curDateTime()//获取当前时间方法
};
//默认城市
$.cookie('VPIAO_MOBILE_DEFAULTCITY', JSON.stringify(defCity), { expires: 1, path: '/' });
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function (position) {
var lat = position.coords.latitude;
var lon = position.coords.longitude;
//var map = new BMap.Map("container"); // 创建Map实例
var point = new BMap.Point(lon, lat); // 创建点坐标
var gc = new BMap.Geocoder();
gc.getLocation(point, function (rs) {
var addComp = rs.addressComponents;
var curCity = {
id: '',
name: addComp.province,
date: curDateTime()
};
//当前定位城市
$.cookie('VPIAO_MOBILE_CURRENTCITY', JSON.stringify(curCity), { expires: 7, path: '/' });
//alert(addComp.province + ", " + addComp.city + ", " + addComp.district + ", " + addComp.street);
if (successFunc != undefined)
successFunc(addComp);
});
},
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("获取位置信息超时。");
break;
default:
alert("未知错误。");
break;
}
var curCity = {
id: '000001',
name: '北京市',
date: curDateTime()
};
//默认城市
$.cookie('VPIAO_MOBILE_DEFAULTCITY', JSON.stringify(curCity), { expires: 1, path: '/' });
if (errorFunc != undefined)
errorFunc(error);
}, { timeout: 5000, enableHighAccuracy: true });
} else {
alert("你的浏览器不支持获取地理位置信息。");
if (errorFunc != undefined)
errorFunc("你的浏览器不支持获取地理位置信息。");
}
};
var showPosition = function (position) {
var lat = position.coords.latitude;
var lon = position.coords.longitude;
//var map = new BMap.Map("container"); // 创建Map实例
var point = new BMap.Point(lon, lat); // 创建点坐标
var gc = new BMap.Geocoder();
gc.getLocation(point, function (rs) {
var addComp = rs.addressComponents;
var curCity = {
id: '',
name: addComp.province,
date: curDateTime()
};
//当前定位城市
$.cookie('VPIAO_MOBILE_CURRENTCITY', JSON.stringify(curCity), { expires: 7, path: '/' });
//alert(addComp.province + ", " + addComp.city + ", " + addComp.district + ", " + addComp.street);
});
};
var showPositionError = 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("获取位置信息超时。");
break;
default:
alert("未知错误。");
break;
}
var curCity = {
id: '000001',
name: '北京市',
date: curDateTime()
};
//默认城市
$.cookie('VPIAO_MOBILE_DEFAULTCITY', JSON.stringify(curCity), { expires: 1, path: '/' });
};
The prerequisite is to introduce Baidu API: