1 //body是要传递的参数,格式"roleId=1&uid=2" 2 //post的cotentType填写: 3 //"application/x-www-form-urlencoded" 4 //soap填写:"text/xml; charset=utf-8" 5     public static string PostHttp(string url, string body, string contentType) 6     { 7         HttpWebRequest httpWebRequest = (HttpWebRequest)WebRequest.Create(url); 8  9         httpWebRequest.ContentType = contentType;10         httpWebRequest.Method = "POST";11         httpWebRequest.Timeout = 20000;12 13         byte[] btBodys = Encoding.UTF8.GetBytes(body);14         httpWebRequest.ContentLength = btBodys.Length;15         httpWebRequest.GetRequestStream().Write(btBodys, 0, btBodys.Length);16 17         HttpWebResponse httpWebResponse = (HttpWebResponse)httpWebRequest.GetResponse();18         StreamReader streamReader = new StreamReader(httpWebResponse.GetResponseStream());19         string responseContent = streamReader.ReadToEnd();20 21         httpWebResponse.Close();22         streamReader.Close();23         httpWebRequest.Abort();24         httpWebResponse.Close();25 26         return responseContent;27     }

1         /// 
 2         /// 通过WebClient类Post数据到远程地址，需要Basic认证； 3         /// 调用端自己处理异常 4         /// 
 5         ///  6         /// name=张三&age=20 7         /// 请先确认目标网页的编码方式 8         ///  9         /// 10         /// 
      11         public static string Request_WebClient(string uri, string paramStr, Encoding encoding, string username, string password)12         {13             if (encoding == null)14                 encoding = Encoding.UTF8;15 16             string result = string.Empty;17 18             WebClient wc = new WebClient();19 20             // 采取POST方式必须加的Header21             wc.Headers.Add("Content-Type", "application/x-www-form-urlencoded");22 23             byte[] postData = encoding.GetBytes(paramStr);24 25             if (!string.IsNullOrEmpty(username) && !string.IsNullOrEmpty(password))26             {27                 wc.Credentials = GetCredentialCache(uri, username, password);28                 wc.Headers.Add("Authorization", GetAuthorization(username, password));29             }30 31             byte[] responseData = wc.UploadData(uri, "POST", postData); // 得到返回字符流32             return encoding.GetString(responseData);// 解码                  33         }

1     public static string GetHttp(string url, HttpContext httpContext) 2     { 3         string queryString = "?"; 4  5         foreach (string key in httpContext.Request.QueryString.AllKeys) 6         { 7             queryString += key + "=" + httpContext.Request.QueryString[key] + "&"; 8         } 9 10         queryString = queryString.Substring(0, queryString.Length - 1);11 12         HttpWebRequest httpWebRequest = (HttpWebRequest)WebRequest.Create(url + queryString);13 14         httpWebRequest.ContentType = "application/json";15         httpWebRequest.Method = "GET";16         httpWebRequest.Timeout = 20000;17 18         //byte[] btBodys = Encoding.UTF8.GetBytes(body);19         //httpWebRequest.ContentLength = btBodys.Length;20         //httpWebRequest.GetRequestStream().Write(btBodys, 0, btBodys.Length);21 22         HttpWebResponse httpWebResponse = (HttpWebResponse)httpWebRequest.GetResponse();23         StreamReader streamReader = new StreamReader(httpWebResponse.GetResponseStream());24         string responseContent = streamReader.ReadToEnd();25 26         httpWebResponse.Close();27         streamReader.Close();28 29         return responseContent;30     }

1         /// 
 2         /// 通过 WebRequest/WebResponse 类访问远程地址并返回结果，需要Basic认证； 3         /// 调用端自己处理异常 4         /// 
 5         ///  6         /// 访问超时时间，单位毫秒；如果不设置超时时间，传入0 7         /// 如果不知道具体的编码，传入null 8         ///  9         /// 10         /// 
      11         public static string Request_WebRequest(string uri, int timeout, Encoding encoding, string username, string password)12         {13             string result = string.Empty;14 15             WebRequest request = WebRequest.Create(new Uri(uri));16 17             if (!string.IsNullOrEmpty(username) && !string.IsNullOrEmpty(password))18             {19                 request.Credentials = GetCredentialCache(uri, username, password);20                 request.Headers.Add("Authorization", GetAuthorization(username, password));21             }22 23             if (timeout > 0)24                 request.Timeout = timeout;25 26             WebResponse response = request.GetResponse();27             Stream stream = response.GetResponseStream();28             StreamReader sr = encoding == null ? new StreamReader(stream) : new StreamReader(stream, encoding);29 30             result = sr.ReadToEnd();31 32             sr.Close();33             stream.Close();34 35             return result;36         }37 38         #region # 生成 Http Basic 访问凭证 #39 40         private static CredentialCache GetCredentialCache(string uri, string username, string password)41         {42             string authorization = string.Format("{0}:{1}", username, password);43 44             CredentialCache credCache = new CredentialCache();45             credCache.Add(new Uri(uri), "Basic", new NetworkCredential(username, password));46 47             return credCache;48         }49 50         private static string GetAuthorization(string username, string password)51         {52             string authorization = string.Format("{0}:{1}", username, password);53 54             return "Basic " + Convert.ToBase64String(new ASCIIEncoding().GetBytes(authorization));55         }56 57         #endregion