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();

来源：北京网站建设-恒动时空