public class RequestHelper

{

/// <summary>

/// 发起post请求

/// </summary>

/// <typeparam name="T"></typeparam>

/// <param name="url">url</param>

/// <param name="postData">post数据</param>

/// <returns></returns>

public static T PostResponse<T>(string url, object postData)

{

string json = JsonHelper.ToJson(postData);

if (url.StartsWith("https"))

System.Net.ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls;

HttpContent httpContent = new StringContent(json);

httpContent.Headers.ContentType = new MediaTypeHeaderValue("application/json");

HttpClient httpClient = new HttpClient();

T result = default(T);

HttpResponseMessage response = httpClient.PostAsync(url, httpContent).Result;

if (response.IsSuccessStatusCode)

{

Task<string> t = response.Content.ReadAsStringAsync();

string s = t.Result;

result = JsonHelper.DeSerializeObject<T>(s);

}

return result;

}

 

/// <summary>

/// 发起get请求

/// </summary>

/// <typeparam name="T"></typeparam>

/// <param name="url">url</param>

/// <returns></returns>

public static T GetResponse<T>(string url)

{

if (url.StartsWith("https"))

System.Net.ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls;

HttpClient httpClient = new HttpClient();

T result = default(T);

HttpResponseMessage response = httpClient.GetAsync(url).Result;

if (response.IsSuccessStatusCode)

{

Task<string> t = response.Content.ReadAsStringAsync();

string s = t.Result;

result = JsonHelper.DeSerializeObject<T>(s);

}

return result;

}

}

调用：

 List<double[]> logAndLat = new List<double[]>();

logAndLat.Add(new double[] {113.326196, 34.715269 });

logAndLat.Add(new double[] {113.321561, 34.722183});

 

public static double GetArea(List<double[]> points)

{

string result = RequestHelper.PostResponse<string>("url", points);

double.TryParse(result, out double r);

return r;

}