HttpWebRequest和HttpWebRespone的常用方法总结

一.访问 无验证,无登陆的URL

View Code 1   HttpWebRequest request  =  WebRequest.Create(resquestUrl)  as  HttpWebRequest; 2                  request.Method  =   " get " ; 3                   // request.Method = "post"; 4                  HttpWebResponse response  =  request.GetResponse()  as  HttpWebResponse; 5                  StreamReader sr  =   new  StreamReader(response.GetResponseStream()); 6                   string  returnContent  =  sr.ReadToEnd(); 7                  sr.Close(); 8                  response.Close();

二.访问有证书的URL

View Code  1  // 证书验证通过。  2              ServicePointManager.ServerCertificateValidationCallback  =  3               new  System.Net.Security.RemoteCertificateValidationCallback( true );  4               //  与指定URL创建HTTP请求  5              HttpWebRequest request  =  (HttpWebRequest)WebRequest.Create(Url);  6              request.Method  =   " post " ;  7               // request.Method = "get";  8              request.Accept  =   " text/html, application/xhtml+xml, */* " ;  9              request.ContentType  =   " application/x-www-form-urlencoded " ; 10               // 创建证书文件 11              X509Certificate objx509  =   new  X509Certificate(Application.StartupPath  +   " \\证书文件相对文件位置 " ); 12               // 添加相关证书到请求里 13              request.ClientCertificates.Add(objx509); 14               //  获取对应HTTP请求的响应 15              HttpWebResponse response  =  (HttpWebResponse)request.GetResponse(); 16               //  获取响应流 17              Stream responseStream  =  response.GetResponseStream(); 18               //  对接响应流(以"GBK"字符集) 19              StreamReader sReader  =   new  StreamReader(responseStream, Encoding.GetEncoding( " utf-8 " )); 20               string  RequestResult  =  sReader.ReadToEnd(); 21              sReader.Close(); 22              response.Close();

三.访问 需要登录的URL

需要登录的URL从cookie里面去的session，在请求的时候，连带cookie信息一起发送过去即可

View Code  1    //  这一句一定要写在创建连接的前面。使用回调的方法进行证书验证。  2              ServicePointManager.ServerCertificateValidationCallback  =    3               new  System.Net.Security.RemoteCertificateValidationCallback( true );  4              Encoding encoding  =  Encoding.Default;  5              HttpWebRequest request  =  (HttpWebRequest)WebRequest.Create(URL);  6               // 创建证书文件  7              X509Certificate objx509  =   new  X509Certificate(Application.StartupPath  +   " \\证书文件相对文件位置 " );//request.Referer=URL; //验证网页来源  8               // 加载Cookie  9              request.CookieContainer  =   new  CookieContainer(); 10              request.CookieContainer.Add( new  Uri(), new  Cookie( " SessionId " , " SessionValue " )); 11               // 添加证书到请求里 12              request.ClientCertificates.Add(objx509); 13              request.Method  =   " post " ; 14              request.Accept  =   " text/html, application/xhtml+xml, */* " ; 15              request.ContentType  =   " application/x-www-form-urlencoded " ; 16               byte [] buffer  =  encoding.GetBytes(strPostdata); 17              request.ContentLength  =  buffer.Length; 18              request.GetRequestStream().Write(buffer,  0 , buffer.Length); 19              HttpWebResponse response  =  (HttpWebResponse)request.GetResponse(); 20               using  (StreamReader reader  =   new  StreamReader(response.GetResponseStream(), System.Text.Encoding.GetEncoding(strEncoding))) 21              { 22                   return  reader.ReadToEnd(); 23              }

参考文章:http://www.cnblogs.com/sufei/archive/2011/05/22/2053642.html

转载于:https://www.cnblogs.com/angleSJW/archive/2011/06/29/2093703.html