public async Task <ReGeocodeLocation> ReGeocodeAsync(double lat, double lng, int radius = 50)
{
var inverseRequestPramter = new AmapInverseHttpRequestParamter();
inverseRequestPramter.Locations = new Location[1]
{
new Location
{
Latitude = lat,
Longitude = lng
}
};
return(await AmapHttpRequestClient.InverseAsync(inverseRequestPramter));
}
public virtual async Task <ReGeocodeLocation> InverseAsync(AmapInverseHttpRequestParamter requestParamter)
{
if (requestParamter.Locations.Length > 20)
{
var localizer = ServiceProvider.GetRequiredService <IStringLocalizer <AmapLocationResource> >();
var localizerError = localizer["SupportsResolveAddress", 20];
localizerError = localizer["ResolveLocationFailed", localizerError];
if (Options.VisableErrorToClient)
{
throw new UserFriendlyException(localizerError);
}
throw new AbpException($"Resolution address failed:{localizerError}!");
}
var client = HttpClientFactory.CreateClient(AmapHttpConsts.HttpClientName);
var requestUrlBuilder = new StringBuilder(128);
requestUrlBuilder.Append("http://restapi.amap.com/v3/geocode/regeo");
requestUrlBuilder.AppendFormat("?key={0}", Options.ApiKey);
requestUrlBuilder.AppendFormat("&batch={0}", requestParamter.Batch);
requestUrlBuilder.AppendFormat("&output={0}", requestParamter.Output);
requestUrlBuilder.AppendFormat("&radius={0}", requestParamter.Radius);
requestUrlBuilder.AppendFormat("&extensions={0}", requestParamter.Extensions);
requestUrlBuilder.AppendFormat("&homeorcorp={0}", requestParamter.HomeOrCorp);
requestUrlBuilder.AppendFormat("&location=");
for (int i = 0; i < requestParamter.Locations.Length; i++)
{
requestUrlBuilder.AppendFormat("{0},{1}", Math.Round(requestParamter.Locations[i].Longitude, 6),
Math.Round(requestParamter.Locations[i].Latitude, 6));
if (i < requestParamter.Locations.Length - 1)
{
requestUrlBuilder.Append("|");
}
}
if (!requestParamter.PoiType.IsNullOrWhiteSpace())
{
requestUrlBuilder.AppendFormat("&poitype={0}", requestParamter.PoiType);
}
if (!requestParamter.PoiType.IsNullOrWhiteSpace())
{
requestUrlBuilder.AppendFormat("&poitype={0}", requestParamter.PoiType);
}
if (!requestParamter.Sig.IsNullOrWhiteSpace())
{
requestUrlBuilder.AppendFormat("&sig={0}", requestParamter.Sig);
}
if (requestParamter.RoadLevel.HasValue)
{
requestUrlBuilder.AppendFormat("&roadlevel={0}", requestParamter.RoadLevel);
}
var requestMessage = new HttpRequestMessage(HttpMethod.Get, requestUrlBuilder.ToString());
var response = await client.SendAsync(requestMessage, GetCancellationToken());
if (!response.IsSuccessStatusCode)
{
throw new AbpException($"Amap request service returns error! HttpStatusCode: {response.StatusCode}, ReasonPhrase: {response.ReasonPhrase}");
}
var resultContent = await response.Content.ReadAsStringAsync();
var amapResponse = JsonSerializer.Deserialize <AmapInverseLocationResponse>(resultContent);
if (!amapResponse.IsSuccess())
{
var localizerFactory = ServiceProvider.GetRequiredService <IStringLocalizerFactory>();
var localizerError = amapResponse.GetErrorMessage().Localize(localizerFactory);
if (Options.VisableErrorToClient)
{
var localizer = ServiceProvider.GetRequiredService <IStringLocalizer <AmapLocationResource> >();
localizerError = localizer["ResolveLocationFailed", localizerError];
throw new UserFriendlyException(localizerError);
}
throw new AbpException($"Resolution address failed:{localizerError}!");
}
var inverseLocation = new ReGeocodeLocation
{
Street = amapResponse.Regeocode.AddressComponent.StreetNumber.Street,
AdCode = amapResponse.Regeocode.AddressComponent.AdCode,
Address = amapResponse.Regeocode.Address,
City = amapResponse.Regeocode.AddressComponent.City.JoinAsString(","),
Country = amapResponse.Regeocode.AddressComponent.Country,
District = amapResponse.Regeocode.AddressComponent.District,
Number = amapResponse.Regeocode.AddressComponent.StreetNumber.Number,
Province = amapResponse.Regeocode.AddressComponent.Province,
Town = amapResponse.Regeocode.AddressComponent.TownShip.JoinAsString(" ")
};
return(inverseLocation);
}
