Asp.net HttpWebRequest和HttpWebResponse发送和接受任何类型数据

发送字符串数据
发送数据

string strId = "guest";

        string strPassword = "123456";



        string postData = "userid=" + strId;

        postData += ("&password=" + strPassword);



        byte[] data = 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);

接收数据

Stream s = Request.InputStream;

        StreamReader sr = new StreamReader(s);

        string ss = sr.ReadToEnd();        

        Response.Write(ss);

发送任意类型数据
发送数据

//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);

接收数据

//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();

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