高德API：http://lbs.amap.com/api/webservice/guide/api/georegeo/

http://restapi.amap.com/v3/geocode/geo?key=7de8697669288fc848e12a08f58d995e&s=rsv3&city=杭州市&address=杭州市天成路87號現代大廈

這里邊的key是別人開放的key，用起來感覺還可以。基本上沒有太大的限制，使用上邊的接口獲取經緯度是基本上100%成功，但是這個坐標系是GCJ02坐標。

按照上邊的接口可以返回的結果信息為：

{"status":"1","info":"OK","infocode":"10000","count":"1","geocodes":[{"formatted_address":"浙江省杭州市江干區現代大廈","province":"浙江省","citycode":"0571","city":"杭州市","district":"江干區","township":[],"neighborhood":{"name":[],"type":[]},"building":{"name":[],"type":[]},"adcode":"330104","street":[],"number":[],"location":"120.204319,30.287145","level":"興趣點"}]}

?根據GPS格式的經緯度，調用高德API返回具體地址信息：

using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Net; using System.Text;namespace ConsoleApp1 {class Program{static void Main(string[] args){string address = GetAddressByGcjLngLat("120.204319", "30.287145");Console.WriteLine(address);Console.ReadKey();}/// <summary>/// 根據GPS經緯度，返回對應位置的地址信息。/// 請求API:http://restapi.amap.com/v3/geocode/regeo?output=json&location=120.204319,30.287145&key=7de8697669288fc848e12a08f58d995e&radius=100&extensions=base/// </summary>/// <param name="longitude"></param>/// <param name="latitude"></param>/// <returns></returns>public static string GetAddressByGcjLngLat(string longitude, string latitude){Tuple<bool, string, string> gcjLngLat = TransformGPS2GCJ(longitude, latitude);// Console.WriteLine("{0}:{1}:{2}", gcjLngLat.Item1, gcjLngLat.Item2, gcjLngLat.Item3);if (false == gcjLngLat.Item1)return string.Empty;string address = string.Empty;try{// 格式：http://restapi.amap.com/v3/geocode/regeo?output=json&location=120.204319,30.287145&key=7de8697669288fc848e12a08f58d995e&radius=100&extensions=basestring content = HttpGet("http://restapi.amap.com/v3/geocode/regeo?output=json&location=" + gcjLngLat.Item2 + "," + gcjLngLat.Item3 + "&key=7de8697669288fc848e12a08f58d995e&radius=200&extensions=base");// 返回值格式：{"status":"1","info":"OK","infocode":"10000","regeocode":{"formatted_address":"浙江省杭州市江干區閘弄口街道萬家花園(天城路)","addressComponent":{"country":"中國","province":"浙江省","city":"杭州市","citycode":"0571","district":"江干區","adcode":"330104","township":"閘弄口街道","towncode":"330104007000","neighborhood":{"name":"萬家花園(天城路)","type":"商務住宅;住宅區;住宅小區"},"building":{"name":[],"type":[]},"streetNumber":{"street":"天城路","number":"87號","location":"120.204319,30.2871444","direction":"南","distance":"0.0617778"},"businessAreas":[{"location":"120.20604745161295,30.28125106451613","name":"火車東站","id":"330104"}]}}}string[] adddressItems = content.Replace("\"", string.Empty).Split(new char[] { '{', ',', '}', '[', ']' });if (adddressItems != null && adddressItems.Length > 0){foreach (string addressItem in adddressItems){if (addressItem.StartsWith("formatted_address:", StringComparison.OrdinalIgnoreCase)){address = addressItem.Replace("formatted_address:", string.Empty);break;}}}}catch (Exception ex){// 出現異常，返回轉化失敗且不撲捉異常信息。 }// Console.WriteLine(address);return address;}/// <summary>/// 接口地址/// http://api.zdoz.net/transmore.ashx/// 接口說明/// 批量糾偏，一次最大可糾偏1000個坐標點/// 參數/// lats:維度，多個維度用“;”隔開/// lngs:經度，多個經度用“;”隔開（要注意經緯度個數相等）/// type:轉換類型 【1.WGS -> GCJ】 【2.GCJ -> WGS】 【3.GCJ -> BD】 【4.BD -> GCJ】 【5.WGS -> BD】 【6.BD -> WGS】/// 返回值JSON/// 根據次序返回一個json格式的數組/// 演示/// 參數：lats=34.123;34.332;55.231&lngs=113.123;112.213;115.321&type=1/// 返回：[{"Lng":113.12942937312582,"Lat":34.121761850760855},{"Lng":112.21911710957568,"Lat":34.3306763095054}, {"Lng":115.33036232125529,"Lat":55.232930158541052}]/// </summary>/// <param name="lngGPS">gps格式的經度，將會被轉化為GCJ02格式的經度</param>/// <param name="latGPS">gps格式的緯度，將會被轉化為GCJ02格式的緯度</param>/// <returns>(bool:是否轉化成功,string:gcj02格式的經度,string:gcj02格式的緯度)</returns>public static Tuple<bool, string, string> TransformGPS2GCJ(string lngGPS, string latGPS){Tuple<bool, string, string> result = new Tuple<bool, string, string>(false, string.Empty, string.Empty);try{// 格式：http://api.zdoz.net/transmore.ashx?lats=34.123&lngs=113.123&type=1string content = HttpGet("http://api.zdoz.net/transmore.ashx?lats=" + latGPS + "&lngs=" + lngGPS + "&type=1");// 返回值格式：[{"Lng":113.12942937312582,"Lat":34.121761850760855}]content = content.Replace("[{", string.Empty).Replace("}]", string.Empty).Replace("\"", string.Empty);string[] lngLatItems = content.Split(new char[] { ',' });if (lngLatItems != null && lngLatItems.Length == 2 && lngLatItems[0].StartsWith("lng", StringComparison.OrdinalIgnoreCase) && lngLatItems[1].StartsWith("lat", StringComparison.OrdinalIgnoreCase)){result = new Tuple<bool, string, string>(true, lngLatItems[0].ToLower().Replace("lng:", string.Empty), lngLatItems[1].ToLower().Replace("lat:", string.Empty));}}catch (Exception ex){// 出現異常，返回轉化失敗且不撲捉異常信息。 }return result;}/// <summary>/// Get訪問uri并反回請求響應內容。/// </summary>/// <param name="uri"></param>/// <param name="timeout">請求超時時間，默認：30s超時</param>/// <returns></returns>public static string HttpGet(string uri, int timeout = 30 * 1000){string result = string.Empty;HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri);request.Method = "GET";request.ContentType = "text/html;charset=UTF-8";request.Timeout = timeout;using (HttpWebResponse response = (HttpWebResponse)request.GetResponse()){using (Stream myResponseStream = response.GetResponseStream()){using (StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.UTF8)){result = myStreamReader.ReadToEnd();}}}return result;}} }

?

轉載于:https://www.cnblogs.com/yy3b2007com/p/6195714.html

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