public bool getweb(string strURL,out string buf) { buf=""; try { //Uri url=new Uri(strURL,false); HttpWebRequest request; request = (HttpWebRequest)WebRequest.Create(strURL); request.Method="POST"; //Post请求方式 request.ContentType="text/html;charset=gb2312"; //内容类型 string paraUrlCoded = System.Web.HttpUtility.UrlEncode(""); //参数经过URL编码 byte[] payload; payload = System.Text.Encoding.GetEncoding("GB2312").GetBytes(paraUrlCoded); //将URL编码后的字符串转化为字节 request.ContentLength = payload.Length; //设置请求的ContentLength Stream writer = request.GetRequestStream(); //获得请求流 writer.Write(payload,0,payload.Length); //将请求参数写入流 writer.Close(); //关闭请求流 HttpWebResponse response; response = (HttpWebResponse)request.GetResponse(); //获得响应流 Stream s; s = response.GetResponseStream(); StreamReader objReader = new StreamReader(s,System.Text.Encoding.GetEncoding("GB2312")); string HTML = ""; string sLine =""; int i = 0; while (sLine!=null) { i++; sLine = objReader.ReadLine(); if (sLine!=null) HTML += sLine; } //HTML = HTML.Replace("<","<"); //HTML = HTML.Replace(">",">"); buf=HTML; return true; } catch (Exception x) { buf=x.Message.ToString(); return false; } }
带Cookie：
CookieContainer cc = new CookieContainer();
public bool getweb(string strURL,out string buf) { buf=""; try {
HttpWebRequest request; request = (HttpWebRequest)WebRequest.Create(strURL); request.Method="POST"; //Post请求方式 request.ContentType="text/html;charset=gb2312"; //内容类型 string paraUrlCoded = System.Web.HttpUtility.UrlEncode(""); //参数经过URL编码 byte[] payload; payload = System.Text.Encoding.GetEncoding("GB2312").GetBytes(paraUrlCoded); //将URL编码后的字符串转化为字节 request.ContentLength = payload.Length; //设置请求的ContentLength Stream writer = request.GetRequestStream(); //获得请求流 writer.Write(payload,0,payload.Length); //将请求参数写入流 writer.Close(); //关闭请求流 HttpWebResponse response; response = (HttpWebResponse)request.GetResponse(); //获得响应流 Stream s; s = response.GetResponseStream(); StreamReader objReader = new StreamReader(s,System.Text.Encoding.GetEncoding("GB2312")); string HTML = ""; string sLine =""; int i = 0; while (sLine!=null) { i++; sLine = objReader.ReadLine(); if (sLine!=null) HTML += sLine; } buf=HTML; return true; } catch (Exception x) { buf=x.Message.ToString(); return false; } } public bool getweb(string strURL,out string buf,string postData) { buf=""; try { ASCIIEncoding encoding = new ASCIIEncoding(); byte[] data = encoding.GetBytes(postData);
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(strURL); request.Method = "POST"; request.ContentType = "application/x-www-form-urlencoded"; request.ContentLength = data.Length; Stream newStream = request.GetRequestStream(); newStream.Write(data, 0, data.Length);
newStream.Close(); request.CookieContainer = cc; HttpWebResponse response = (HttpWebResponse)request.GetResponse(); cc.Add(response.Cookies); Stream stream = response.GetResponseStream(); string sHtml = new StreamReader(stream, System.Text.Encoding.Default).ReadToEnd(); buf=sHtml; return true; } catch (Exception x) { buf=x.Message.ToString(); return false; } } 转自http://www.cnblogs.com/jacktu/archive/2007/07/30/836365.html