1 public static string HttpGet(string url) 2         { 3             HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url); 4             request.Method = "GET";//设置请求的方法 5             request.Accept = "*/*";//设置Accept标头的值 6             string responseStr = ""; 7             using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())//获取响应 8             { 9                 using (StreamReader reader =10         new StreamReader(response.GetResponseStream(), Encoding.UTF8))11                 {12                     responseStr = reader.ReadToEnd();13                 }14             }15             return responseStr;16         }

 

1  public static string HttpPost(string url, string  data) 2         { 3             //当请求为https时，验证服务器证书 4             ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback((a, b, c, d) => true); 5           var req= (HttpWebRequest)WebRequest.Create(url); 6             req.Method = "POST"; 7             req.ContentType = "application/x-www-form-urlencoded"; 8             req.Accept = "*/*"; 9             req.Timeout = 15000;10             req.AllowAutoRedirect = false;11             string responseStr = "";12             using (var writer = new StreamWriter(req.GetRequestStream()))13             {14                writer.Write(data);15             }16             using (var  res = (HttpWebResponse)req.GetResponse())17             {18                 using (var reader = new StreamReader(res.GetResponseStream(), Encoding.UTF8))19                 {20                     responseStr = reader.ReadToEnd();//获取响应21                 }22             }23             return responseStr;24         }

 

 

 

1   public static string HttpPost(string url, string stream) 2         { 3             //当请求为https时，验证服务器证书 4             ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback((a, b, c, d) => true); 5             HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url); 6             request.Method = "POST"; 7             request.ContentType = "application/x-www-form-urlencoded"; 8             request.Accept = "*/*"; 9             request.Timeout = 15000;10             request.AllowAutoRedirect = false;11             string responseStr = "";12             using (var reqstream = request.GetRequestStream())13             {14                 stream.Position = 0L;15                 stream.CopyTo(reqstream);16             }17             using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())18             {19                 using (StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8))20                 {21                     responseStr = reader.ReadToEnd();//获取响应22                 }23             }24             return responseStr;25         }

 

1 public static string HttpPostForm(string url, List
     
       form) 2         { 3             //分割字符串 4             var boundary = "----" + DateTime.Now.Ticks.ToString("x"); 5             HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url); 6             request.Method = "POST"; 7             ServicePointManager.ServerCertificateValidationCallback = 8                new RemoteCertificateValidationCallback((a, b, c, d) => true); 9             request.ContentType = "multipart/form-data; boundary=" + boundary;10             MemoryStream stream = new MemoryStream();11             #region 将非文件表单写入内存流12             foreach (var entity in form.Where(f => f.IsFile == false))13             {14                 var temp = new StringBuilder();15                 temp.AppendFormat("\r\n--{0}", boundary);16                 temp.Append("\r\nContent-Disposition: form-data;");17                 temp.AppendFormat("name=\"{0}\"", entity.Name);18                 temp.Append("\r\n\r\n");19                 temp.Append(entity.Value);20                 byte[] b = Encoding.UTF8.GetBytes(temp.ToString());21                 stream.Write(b, 0, b.Length);22             }23             #endregion24             #region 将文件表单写入内存流25             foreach (var entity in form.Where(f => f.IsFile == true))26             {27                 byte[] filedata = null;28                 var filename = Path.GetFileName(entity.Value);29                 //表示是网络资源30                 if (entity.Value.Contains("http"))31                 {32                     //处理网络文件33                     using (var client = new WebClient())34                     {35                         filedata = client.DownloadData(entity.Value);36                     }37                 }38                 else39                 {40                     //处理物理路径文件41                     using (FileStream file = new FileStream(entity.Value,42                     FileMode.Open, FileAccess.Read))43                     {44                         filedata = new byte[file.Length];45                         file.Read(filedata, 0, (int)file.Length);46                     }47                 }48                 var temp = string.Format("\r\n--{0}\r\nContent-Disposition: " +49                 "form-data; name=\"{1}\"; filename=\"{2}\"\r\n\r\n",50                    boundary, entity.Name, filename);51                 byte[] b = Encoding.UTF8.GetBytes(temp);52                 stream.Write(b, 0, b.Length);53                 stream.Write(filedata, 0, filedata.Length);54             }55             #endregion56             //结束标记57             byte[] foot_data = Encoding.UTF8.GetBytes("\r\n--" + boundary +58             "--\r\n");59             stream.Write(foot_data, 0, foot_data.Length);60             Stream reqStream = request.GetRequestStream();61             stream.Position = 0L;62             //将Form表单生成流写入请求流63             stream.CopyTo(reqStream);64             stream.Close();65             reqStream.Close();66             using (HttpWebResponse response = (HttpWebResponse)request.67             GetResponse())68             {69                 using (StreamReader reader =70        new StreamReader(response.GetResponseStream(), Encoding.UTF8))71                 {72                     return reader.ReadToEnd();//获取响应73                 }74             }75         }