c#带cookie访问网页简单示例

       #region 同步通过GET方式发送数据
       
/// <summary>
       
/// 通过GET方式发送数据
       
/// </summary>
       
/// <param name="Url">url</param>
       
/// <param name="postDataStr">GET数据</param>
       
/// <param name="cookie">GET容器</param>
       
/// <returns></returns>
       public string SendDataByGET(string Url, string postDataStr, ref CookieContainer cookie)
       {
         HttpWebRequest request 
= (HttpWebRequest)WebRequest.Create(Url +( postDataStr == "" ? "" : "?"+ postDataStr);
         
if (cookie.Count == 0)
         {
            request.CookieContainer 
= new CookieContainer();
            cookie 
= request.CookieContainer;
         }
         
else
         {
            request.CookieContainer 
= cookie;
         }

         request.Method 
= "GET";
         request.ContentType 
= "text/html;charset=UTF-8";
         
         HttpWebResponse response 
= (HttpWebResponse)request.GetResponse();
         Stream myResponseStream 
= response.GetResponseStream();
         StreamReader myStreamReader 
= new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8"));
         
string retString = myStreamReader.ReadToEnd();
         myStreamReader.Close();
         myResponseStream.Close();

         
return retString;
       }
       
#endregion 

 

 

#region 同步通过POST方式发送数据
       
/// <summary>
       
/// 通过POST方式发送数据
       
/// </summary>
       
/// <param name="Url">url</param>
       
/// <param name="postDataStr">Post数据</param>
       
/// <param name="cookie">Cookie容器</param>
       
/// <returns></returns>
       public string SendDataByPost(string Url,string postDataStr,ref CookieContainer cookie)
       {
         HttpWebRequest request 
= (HttpWebRequest)WebRequest.Create(Url);
         
if (cookie.Count == 0)
         {
            request.CookieContainer 
= new CookieContainer();
            cookie 
= request.CookieContainer;
         }
         
else
         {
            request.CookieContainer 
= cookie;
         }

         request.Method 
= "POST";
         request.ContentType 
= "application/x-www-form-urlencoded";
         request.ContentLength 
= postDataStr.Length;
         Stream myRequestStream 
= request.GetRequestStream();
         StreamWriter myStreamWriter 
= new StreamWriter(myRequestStream, Encoding.GetEncoding("gb2312"));
         myStreamWriter.Write(postDataStr);
         myStreamWriter.Close();

         HttpWebResponse response 
= (HttpWebResponse)request.GetResponse();
         Stream myResponseStream 
= response.GetResponseStream();
         StreamReader myStreamReader 
= new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8"));
         
string retString= myStreamReader.ReadToEnd();
         myStreamReader.Close();
         myResponseStream.Close();

         
return retString;
       }
       
#endregion
 

 

 

 

操作代码 

CookieContainer cc
=new CookieContainer();
cc.Add(
new System.Uri("http://www.baidu.com "), new Cookie("PHPSESSID""xx"));
string content =  web.SendDataByGET("http://www.baidu.com/xx/yy.php","","gbk",ref cc);
MessageBox.Show(content); 

 

 

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posted on 2011-09-18 13:38  Konimeter  阅读(4549)  评论(0编辑  收藏  举报