136 lines
3.4 KiB
C#
136 lines
3.4 KiB
C#
using System;
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using System.Net.Http;
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using System.Threading.Tasks;
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using System.Text.Json;
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using Newtonsoft.Json;
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namespace ZR.Common;
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/// <summary>
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///
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/// </summary>
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public class GeoCodeService
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{
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public static string ApiKey = "938a85a1cc3114b200522fb7ee579b27";
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public const string BaseUrl = "https://restapi.amap.com/v3/geocode/regeo";
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private readonly HttpClient _httpClient;
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public GeoCodeService(HttpClient httpClient)
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{
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_httpClient = httpClient ?? throw new ArgumentNullException(nameof(httpClient));
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}
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public async Task<(string, string)?> GetReGeoCodeAsync(string location, string coordsys = "gcj02")
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{
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if (string.IsNullOrWhiteSpace(location))
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{
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throw new ArgumentException("Location cannot be null or empty.", nameof(location));
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}
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var requestUrl = $"{BaseUrl}?key={ApiKey}&location={location}&coordsys={coordsys}";
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try
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{
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var response = await _httpClient.GetAsync(requestUrl);
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response.EnsureSuccessStatusCode();
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var content = await response.Content.ReadAsStringAsync();
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var json = JsonDocument.Parse(content);
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// 直接提取 formatted_address
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var j = json.RootElement
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.GetProperty("regeocode")
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.GetProperty("formatted_address")
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.GetString();
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return new(j, content);
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}
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catch (HttpRequestException ex)
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{
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//throw new ApplicationException("Error calling AMap API", ex);
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}
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return new("", "");
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}
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}
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/// <summary>
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/// 高德地图逆地理编码API返回结果
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/// </summary>
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public class ReGeoCodeResult
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{
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/// <summary>
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/// 返回结果状态值
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/// 0：请求失败；1：请求成功
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/// </summary>
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public int Status { get; set; }
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/// <summary>
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/// 返回状态说明
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/// 当status为0时，info返回错误原因；否则返回"OK"
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/// </summary>
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public string Info { get; set; }
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/// <summary>
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/// 返回状态码
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/// </summary>
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public string Infocode { get; set; }
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/// <summary>
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/// 逆地理编码结果
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/// </summary>
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public Regeocode Regeocode { get; set; }
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}
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/// <summary>
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/// 逆地理编码详细信息
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/// </summary>
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public class Regeocode
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{
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/// <summary>
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/// 结构化地址信息
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/// 例如："广东省广州市天河区体育西路189号"
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/// </summary>
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public string Formatted_Address { get; set; }
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/// <summary>
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/// 地址组成元素
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/// 包含国家、省份、城市等信息
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/// </summary>
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public AddressComponent AddressComponent { get; set; }
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// 可以根据需要添加其他字段
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}
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/// <summary>
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/// 地址组成元素
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/// </summary>
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public class AddressComponent
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{
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/// <summary>
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/// 国家名称
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/// 例如："中国"
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/// </summary>
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public string Country { get; set; }
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/// <summary>
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/// 省份名称
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/// 例如："广东省"
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/// </summary>
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public string Province { get; set; }
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/// <summary>
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/// 城市名称
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/// 例如："广州市"
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/// </summary>
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public string City { get; set; }
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/// <summary>
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/// 区县名称
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/// 例如："天河区"
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/// </summary>
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public string District { get; set; }
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/// <summary>
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/// 乡镇/街道名称
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/// 例如："天园街道"
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/// </summary>
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public string Township { get; set; }
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// 可以根据需要添加其他字段
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} |