? ? ? ?前幾月一直用一個Http的訪問類去調用WebApi，說句實話最開始沒覺有什么，一是技術老，二是覺得比較簡單，但是最近我一直關注云開發和AI這塊兒微軟技術，看到云平臺調用API大多類似，所以回想這個早年的調用方式，感覺有老湯燉肉之感，實用又有價值，可以作為認識調用API的學習和使用，回味無窮。

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using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Net; using System.Net.Security; using System.Security.Cryptography.X509Certificates; using System.Text; using System.Web;namespace Bussiness.Helper {public class HttpHelper{/// <summary> /// 創建GET方式的HTTP請求 /// </summary> public static HttpWebResponse CreateGetHttpResponse(string url, int timeout, string userAgent, CookieCollection cookies){HttpWebRequest request = null;if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase)){//對服務端證書進行有效性校驗（非第三方權威機構頒發的證書，如自己生成的，不進行驗證，這里返回true）ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);request = WebRequest.Create(url) as HttpWebRequest;request.ProtocolVersion = HttpVersion.Version10; //http版本，默認是1.1,這里設置為1.0 }else{request = WebRequest.Create(url) as HttpWebRequest;}request.Method = "GET";request.Headers.Add("Origin", "http://" + request.Host);//設置代理UserAgent和超時//request.UserAgent = userAgent;//request.Timeout = timeout;if (cookies != null){request.CookieContainer = new CookieContainer();request.CookieContainer.Add(cookies);}return request.GetResponse() as HttpWebResponse;}/// <summary> /// 創建POST方式的HTTP請求 /// </summary> public static HttpWebResponse CreatePostHttpResponse(string url, IDictionary<string, string> parameters, int timeout, string userAgent, CookieCollection cookies){HttpWebRequest request = null;//如果是發送HTTPS請求 if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase)){//ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);request = WebRequest.Create(url) as HttpWebRequest;//request.ProtocolVersion = HttpVersion.Version10; }else{request = WebRequest.Create(url) as HttpWebRequest;}request.Method = "POST";request.ContentType = "application/x-www-form-urlencoded";//設置代理UserAgent和超時//request.UserAgent = userAgent;//request.Timeout = timeout; if (cookies != null){request.CookieContainer = new CookieContainer();request.CookieContainer.Add(cookies);}//發送POST數據 if (!(parameters == null || parameters.Count == 0)){StringBuilder buffer = new StringBuilder();int i = 0;foreach (string key in parameters.Keys){if (i > 0){buffer.AppendFormat("&{0}={1}", key, parameters[key]);}else{buffer.AppendFormat("{0}={1}", key, parameters[key]);i++;}}//byte[] data = Encoding.ASCII.GetBytes(buffer.ToString());byte[] data = Encoding.UTF8.GetBytes(buffer.ToString());using (Stream stream = request.GetRequestStream()){stream.Write(data, 0, data.Length);}}string[] values = request.Headers.GetValues("Content-Type");return request.GetResponse() as HttpWebResponse;}/// <summary>/// 獲取請求的數據/// </summary>public static string GetResponseString(HttpWebResponse webresponse){var result = string.Empty;using (Stream s = webresponse.GetResponseStream()){StreamReader reader = new StreamReader(s, Encoding.UTF8);result = reader.ReadToEnd();}return result;}/// <summary>/// 驗證證書/// </summary>private static bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors){if (errors == SslPolicyErrors.None)return true;return false;}} } View Code

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特備提示：

亂碼現象，注意改這里：

//byte[] data = Encoding.ASCII.GetBytes(buffer.ToString());
byte[] data = Encoding.UTF8.GetBytes(buffer.ToString());

調用方式：

Dictionary<String, String> pList = new Dictionary<String, String>(); pList.Add("Location", userLog.Location); pList.Add("Name", userLog.Name);ResultModel resultModel = new ResultModel(); var apiDomain = ConfigurationManager.AppSettings["ApiDomain"]; var url = @"" + apiDomain + "/api/AD/DeleteOneUser"; // var url = @"" + apiDomain + "/api/AD/GetEmail"; try { var response = HttpHelper.CreatePostHttpResponse(url, pList, 0, string.Empty, null); var info = HttpHelper.GetResponseString(response).Replace("\\", ""); //info = info.Substring(1, info.Length - 2); //string intoStr = "{" + info + "}"; resultModel = Newtonsoft.Json.JsonConvert.DeserializeObject<ResultModel>(info);｝catch(){} View Code

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轉載于:https://www.cnblogs.com/shiningleo007/p/7109755.html

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