string strId = "guest";        string strPassword = "123456";        string postData = http://www.mamicode.com/"userid=" + strId;        postData += ("&password=" + strPassword);        byte[] data =http://www.mamicode.com/ Encoding.UTF8.GetBytes(postData);        // Prepare web request...        HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create("http://127.0.0.1:8058/PostResult.aspx");        myRequest.Method = "POST";        myRequest.ContentType = "application/x-www-form-urlencoded";        myRequest.ContentLength = data.Length;        Stream newStream = myRequest.GetRequestStream();        // Send the data.        newStream.Write(data, 0, data.Length);        newStream.Close();        // Get response        HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse();                StreamReader reader = new StreamReader(myResponse.GetResponseStream(), Encoding.Default);        string content = reader.ReadToEnd();        Response.Write(content);

Stream s = Request.InputStream;        StreamReader sr = new StreamReader(s);        string ss = sr.ReadToEnd();                Response.Write(ss);

//当前页面地址            string currentUrl = Request.Url.ToString();            string fileName = "复制文件";            string url = currentUrl.Substring(0, currentUrl.LastIndexOf(‘/‘)) + "/Default2.aspx?id=" + fileName;   //发送到的页面的地址            HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);             //读取一个文件            FileStream fs = new FileStream(Server.MapPath("程序更新说明书.doc"), System.IO.FileMode.Open, System.IO.FileAccess.Read);            byte[] filecontent = new byte[fs.Length];            fs.Read(filecontent, 0, filecontent.Length);            fs.Close();            fs.Dispose();             //将图片转换成base64编码的流            string a = Convert.ToBase64String(filecontent);             //读取base64编码流，发送            byte[] requestBytes = System.Text.Encoding.Default.GetBytes(a);             req.Method = "POST";            req.ContentType = "application/x-www-form-urlencoded";            req.ContentLength = requestBytes.Length;            Stream requestStream = req.GetRequestStream();            requestStream.Write(requestBytes, 0, requestBytes.Length);            requestStream.Close();             //接收返回参数，到string backstr            HttpWebResponse res = (HttpWebResponse)req.GetResponse();            StreamReader sr = new StreamReader(res.GetResponseStream(), System.Text.Encoding.Default);            string backstr = sr.ReadToEnd();            sr.Close();            res.Close();            //输出参数            Response.Write(backstr);

//接收到的参数            string bb = Request.QueryString["id"];            Encoding myEncoding = Encoding.GetEncoding("utf-8");             //接收传递过来的数据流            Stream resStream = Request.InputStream;             byte[] filecontent = new byte[resStream.Length];            //将数据流读入byte数组            resStream.Read(filecontent, 0, filecontent.Length);            //数组转换为string以便转换base64使用            string a = myEncoding.GetString(filecontent);            //将string读取base64解密到byte数组            byte[] filecontent2 = Convert.FromBase64String(a);            //写入目录            File.WriteAllBytes(Server.MapPath(bb + ".doc"), filecontent2);            //返回值            Response.Write("ok");            Response.End();