1、登录或注册高德地图开放平台然后申请应用key(需要认证个人或企业开发者)
高德开放平台 | 高德地图API (amap.com)
2、创建新应用,为新应用添加key,完成第一项后即可看到key管理
3、具体的开发文档、接口入参出参以及结果示例等详见高德地图开放平台官网
地理/逆地理编码-API文档-开发指南-Web服务 API | 高德地图API (amap.com)
4、直接书写具体示例(以区域查询为例)
开发语言:C#
开发工具:visual studio 2019
开发项目类型:控制台程序
代码语言:c#复制/// <summary>
/// 行政区域查询 - 高德地图
/// </summary>
/// <param name="args">请求入参</param>
/// <returns>行政区域返回值</returns>
private static string GetRegionByURL(string parameters)
{
string strResult = "";
string url = string.Format("https://restapi.amap.com/v3/config/district?{0}", parameters);
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 = 30000; // 30秒连接不成功就中断
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 = "";
Console.WriteLine("异常信息提示:" ex.Message);
Console.ReadLine();
}
return strResult;
}
主函数调用
代码语言:c#复制const string key = "xxxxxxxxxx"; // 个人高德申请的应用key
static void Main(string[] args)
{
Console.WriteLine("请输入要查询的省份名称,如山东");
string keywords = Console.ReadLine();
string queryRegionResult = GetRegionByURL($"key={key}&subdistrict=2&extensions=base&keywords=" keywords);
Console.WriteLine($"查询{keywords}的结果为:" queryRegionResult);
Console.ReadLine();
}
运行结果如下: