131 lines
4.7 KiB
C#
131 lines
4.7 KiB
C#
using Infrastructure;
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using System;
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using System.Net.Http;
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using System.Text.Json;
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using System.Threading.Tasks;
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using ZR.Common.Model;
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namespace ZR.Common
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{
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/// <summary>
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/// 腾讯地图服务
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/// </summary>
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public class TencentMapService
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{
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private readonly HttpClient _httpClient;
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private readonly string _apiKey = AppSettings.GetConfig("TencentMap:KEY");
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private const string BaseUrl = "https://apis.map.qq.com/";
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public TencentMapService(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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/// <summary>
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/// 转换 GPS 经纬度到腾讯地图坐标
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/// </summary>
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/// <param name="locations">坐标点，格式：lat,lng;lat,lng</param>
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/// <param name="type">转换类型，默认1表示GPS坐标转腾讯坐标</param>
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/// <returns>转换后的坐标</returns>
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public async Task<MapLocation> GetLocationTranslateAsync(string locations, int type = 1)
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{
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if (string.IsNullOrWhiteSpace(locations))
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{
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throw new ArgumentException("坐标点不能为空", nameof(locations));
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}
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var url = $"{BaseUrl}ws/coord/v1/translate?locations={locations}&type={type}&key={_apiKey}";
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try
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{
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var response = await _httpClient.GetAsync(url);
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response.EnsureSuccessStatusCode();
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var content = await response.Content.ReadAsStringAsync();
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var mapResponse = JsonSerializer.Deserialize<MapApiResponse>(content, new JsonSerializerOptions
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{
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PropertyNameCaseInsensitive = true
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});
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if (mapResponse?.Status == 0 && mapResponse.Locations?.Count > 0)
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{
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return mapResponse.Locations[0];
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}
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else
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{
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throw new Exception($"坐标转换失败: {mapResponse?.Message}");
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}
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}
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catch (HttpRequestException ex)
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{
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throw new Exception("请求腾讯地图API失败", ex);
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}
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catch (JsonException ex)
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{
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throw new Exception("解析腾讯地图API响应失败", ex);
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}
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}
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/// <summary>
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/// 根据转换后的经纬度获取地址
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/// </summary>
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/// <param name="location">坐标点，格式：lat,lng</param>
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/// <returns>地址信息</returns>
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public async Task<string> GetLocationGeocoderAsync(string location)
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{
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if (string.IsNullOrWhiteSpace(location))
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{
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throw new ArgumentException("坐标点不能为空", nameof(location));
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}
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var url = $"{BaseUrl}ws/geocoder/v1/?location={location}&key={_apiKey}";
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try
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{
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var response = await _httpClient.GetAsync(url);
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response.EnsureSuccessStatusCode();
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var content = await response.Content.ReadAsStringAsync();
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var geocoderResponse = JsonSerializer.Deserialize<MapGeocoderApiResponse>(content, new JsonSerializerOptions
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{
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PropertyNameCaseInsensitive = true
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});
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if (geocoderResponse?.Status == 0 && geocoderResponse.Result != null)
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{
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return geocoderResponse.Result.formattedAddresses?.standard_address ?? geocoderResponse.Result.Address;
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}
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else
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{
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throw new Exception($"地理编码失败: {geocoderResponse?.Message}");
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}
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}
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catch (HttpRequestException ex)
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{
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throw new Exception("请求腾讯地图API失败", ex);
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}
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catch (JsonException ex)
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{
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throw new Exception("解析腾讯地图API响应失败", ex);
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}
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}
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/// <summary>
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/// 批量转换GPS坐标并获取地址
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/// </summary>
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/// <param name="locations">坐标点，格式：lat,lng;lat,lng</param>
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/// <returns>转换后的坐标和地址信息</returns>
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public async Task<(MapLocation Location, string Address)> GetLocationTranslateAndGeocoderAsync(string locations)
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{
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var translatedLocation = await GetLocationTranslateAsync(locations);
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var locationString = $"{translatedLocation.Lat},{translatedLocation.Lng}";
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var address = await GetLocationGeocoderAsync(locationString);
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return (translatedLocation, address);
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}
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}
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}
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