浏览器原生和微信JS-SDK两种方法获取用户经纬度和所在城市的方法

网上找了很多根据经纬度获取城市的文章,没发现特别好用的,于是自己写了一个,包含自带浏览器获取经纬度和微信JS-SDK获取经纬度的方法,获取后并存入localStorage

 

参考资料如下

微信JS-SDK :http://mp.weixin.qq.com/wiki/7/aaa137b55fb2e0456bf8dd9148dd613f.html

百度地图API: http://developer.baidu.com/map/index.php?title=webapi/guide/webservice-geocoding

 

代码

 

var getLocation = {
//浏览器原生获取经纬度方法
	latAndLon: function (callback, error) {
		var that = this;
		if (navigator.geolocation) {
			navigator.geolocation.getCurrentPosition(function (position) {
					var latitude = position.coords.latitude;
					var longitude = position.coords.longitude;
					localStorage.setItem("latitude", latitude);
					localStorage.setItem("longitude", longitude);
					var data = {
						latitude: latitude,
						longitude: longitude
					};
					if (typeof callback == "function") {
						callback(data);
					}
				},
				function () {
					if (typeof error == "function") {
						error();
					}
				});
		} else {
			if (typeof error == "function") {
				error();
			}
		}
	},

//微信JS-SDK获取经纬度方法
	weichatLatAndLon: function (callback, error) {
		var that = this;
		var timestamp = new Date().getTime() + "";
		timestamp = timestamp.substring(0, 10);
		var ranStr = randomString();

		//微信接口配置
		wx.config({
			debug: false, // 开启调试模式,调用的所有api的返回值会在客户端alert出来,若要查看传入的参数,可以在pc端打开,参数信息会通过log打出,仅在pc端时才会打印。
			appId: 'XXXXXXXXXXXXXXXXX', // 必填,公众号的唯一标识
			timestamp: timestamp, // 必填,生成签名的时间戳
			nonceStr: ranStr, // 必填,生成签名的随机串
			signature: 'XXXXXXXXXXXXXXXXX',// 必填,签名,见附录1
			jsApiList: ['checkJsApi',
				'getLocation'
			] // 必填,需要使用的JS接口列表,所有JS接口列表见附录2
		});

		//参见微信JS SDK文档:http://mp.weixin.qq.com/wiki/7/aaa137b55fb2e0456bf8dd9148dd613f.html
		wx.ready(function () {

			wx.getLocation({
				success: function (res) {
					var latitude = res.latitude; // 纬度,浮点数,范围为90 ~ -90
					var longitude = res.longitude; // 经度,浮点数,范围为180 ~ -180。
					var speed = res.speed; // 速度,以米/每秒计
					var accuracy = res.accuracy; // 位置精度
					localStorage.setItem("latitude", latitude);
					localStorage.setItem("longitude", longitude);
					var data = {
						latitude: latitude,
						longitude: longitude
					};
					if (typeof callback == "function") {
						callback(data);
					}
				},
				cancel: function () {
					//这个地方是用户拒绝获取地理位置
					if (typeof error == "function") {
						error();
					}
				}
			});

		});
		wx.error(function (res) {
			if (typeof error == "function") {
				error();
			}
		});
	},
	//将经纬度转换成城市名和街道地址,参见百度地图接口文档:http://developer.baidu.com/map/index.php?title=webapi/guide/webservice-geocoding
	cityname: function (latitude, longitude, callback) {
		$.ajax({
			url: 'http://api.map.baidu.com/geocoder/v2/?ak=btsVVWf0TM1zUBEbzFz6QqWF&callback=renderReverse&location=' + latitude + ',' + longitude + '&output=json&pois=1',
			type: "get",
			dataType: "jsonp",
			jsonp: "callback",
			success: function (data) {
				console.log(data);
				var province = data.result.addressComponent.province;
				var cityname = (data.result.addressComponent.city);
				var district = data.result.addressComponent.district;
				var street = data.result.addressComponent.street;
				var street_number = data.result.addressComponent.street_number;
				var formatted_address = data.result.formatted_address;
				localStorage.setItem("province", province);
				localStorage.setItem("cityname", cityname);
				localStorage.setItem("district", district);
				localStorage.setItem("street", street);
				localStorage.setItem("street_number", street_number);
				localStorage.setItem("formatted_address", formatted_address);
				//domTempe(cityname,latitude,longitude);
				var data = {
					latitude: latitude,
					longitude: longitude,
					cityname: cityname
				};
				if (typeof callback == "function") {
					callback(data);
				}

			}
		});
	},
//设置默认城市
	setDefaultCity: function (callback) {
		alert("获取地理位置失败!");
		//默认经纬度
		var latitude = "31.337882";
		var longitude = "120.616634";
		var cityname = "苏州市";
		localStorage.setItem("latitude", latitude);
		localStorage.setItem("longitude", longitude);
		localStorage.setItem("cityname", cityname);
		localStorage.setItem("province", "江苏省");
		localStorage.setItem("district", "虎丘区");
		localStorage.setItem("street", "珠江路");
		localStorage.setItem("street_number", "88号");
		localStorage.setItem("formatted_address", "江苏省苏州市虎丘区珠江路88号");
		var data = {
			latitude: latitude,
			longitude: longitude,
			cityname: cityname
		};
		if (typeof callback == "function") {
			callback(data);
		}
	},
//更新地理位置
	refresh: function (callback) {
		var that = this;
		//重新获取经纬度和城市街道并设置到localStorage
		that.latAndLon(
			function (data) {
				that.cityname(data.latitude, data.longitude, function (datas) {
					if (typeof callback == "function") {
						callback();
					}
				});
			},
			function(){
				that.setDefaultCity(function(){
					if (typeof callback == "function") {
						callback();
					}
				});
			});
	}
};

 

 

调用

 

//原生浏览器获取经纬度方法
getLocation.latAndLon(
	function (data) {
		//data包含经纬度信息
		AGG.getLocation.cityname(data.latitude, data.longitude, function (datas) {
			//datas包含经纬度信息和城市
		});
	},
	function () {
		AGG.getLocation.setDefaultCity(
			function (defaultData) {
				//设置默认城市
			}
		);
	}
);


//微信JS-SDK获取经纬度方法
getLocation.weichatLatAndLon(
	function (data) {
		//data包含经纬度信息
		AGG.getLocation.cityname(data.latitude, data.longitude, function (datas) {
			//datas包含经纬度信息和城市
		});
	},
	function () {
		AGG.getLocation.setDefaultCity(
			function (defaultData) {
				//设置默认城市
			}
		);
	}
);

 

 

 

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