C#高德地图经纬度转地理位置或物理地址

首先在高德地理注册一个个人开发或则企业开发账号

然后申请一个Key，如下图

using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Threading.Tasks;public class GaoDeMapUtil
{const string key = "d8440a22fb3fc04b72a61aa6b51902a2";           /// <summary>/// 根据经纬度获取地址/// </summary>/// <param name="LngLatStr">经度纬度组成的字符串 例如:"113.692100,34.752853"</param>/// <param name="timeout">超时时间默认10秒</param>/// <returns>失败返回"" </returns>public static string GetLocationByLngLat(string LngLatStr, int timeout = 10000){//https://restapi.amap.com/v3/geocode/regeo?key=您的key&location=116.481488,39.990464&poitype=&radius=0&extensions=base&batch=false&roadlevel=1 string url = string.Format("https://restapi.amap.com/v3/geocode/regeo?key={0}&location={1}&extensions=base&batch=false", key, LngLatStr);return GetLocationByURL(url, timeout);}/// <summary>/// 根据经纬度获取地址/// </summary>/// <param name="lng">经度 例如:113.692100</param>/// <param name="lat">维度 例如:34.752853</param>/// <param name="timeout">超时时间默认10秒</param>/// <returns>失败返回"" </returns>public static string GetLocationByLngLat(double lng, double lat, int timeout = 10000){string url = string.Format("https://restapi.amap.com/v3/geocode/regeo?key={0}&location={1},{2}&extensions=base&batch=false", key, lng, lat);return GetLocationByURL(url, timeout);}/// <summary>/// 根据URL获取地址/// </summary>/// <param name="url">Get方法的URL</param>/// <param name="timeout">超时时间默认10秒</param>/// <returns></returns>private static string GetLocationByURL(string url, int timeout = 10000){string strResult = "";try{HttpWebRequest req = WebRequest.Create(url) as HttpWebRequest;req.ContentType = "multipart/form-data";req.Accept = "*/*";//req.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727)";req.UserAgent = "";req.Timeout = timeout;req.Method = "GET";req.KeepAlive = true;HttpWebResponse response = req.GetResponse() as HttpWebResponse;using (StreamReader sr = new StreamReader(response.GetResponseStream(), Encoding.UTF8)){strResult = sr.ReadToEnd();}}catch (Exception ex){strResult = ex.ToString();}return strResult;}public static PositionInfo GetFullAddress(string LngLatStr, int timeout = 10000){string url = string.Format("https://restapi.amap.com/v3/geocode/regeo?key={0}&location={1}&extensions=base&batch=false", key, LngLatStr);string strResult = "";PositionInfo positionInfo = new PositionInfo();try{HttpWebRequest req = WebRequest.Create(url) as HttpWebRequest;req.ContentType = "multipart/form-data";req.Accept = "*/*";//req.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727)";req.UserAgent = "";req.Timeout = timeout;req.Method = "GET";req.KeepAlive = true;HttpWebResponse response = req.GetResponse() as HttpWebResponse;using (StreamReader sr = new StreamReader(response.GetResponseStream(), Encoding.UTF8)){strResult = sr.ReadToEnd();}}catch (Exception ex){strResult = ex.ToString();positionInfo.error = strResult;return positionInfo;}positionInfo = (PositionInfo)JsonConvert.DeserializeObject(strResult, typeof(PositionInfo));strResult = "";positionInfo.error = strResult;return positionInfo;}public class PositionInfo{public string status { get; set; }public Regeocode regeocode { get; set; }public string info { get; set; }public string infocode { get; set; }public string error { get; set; }}public class Regeocode{public AddressComponent addressComponent { get; set; }public string formatted_address { get; set; }}public class AddressComponent{public string city { get; set; }public string province { get; set; }public string adcode { get; set; }public string district { get; set; }public string towncode { get; set; }public StreetNumber streetNumber { get; set; }public string country { get; set; }public string township { get; set; }public string citycode { get; set; }}public class StreetNumber{public string number { get; set; }public string location { get; set; }public string direction { get; set; }public string distance { get; set; }public string street { get; set; }}
}

调用代码

PositionInfo address = GaoDeMapUtil.GetFullAddress("118.62936432,24.86140381");
MessageBox.Show(address.regeocode.formatted_address+"|"+address.error);

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