利用 HttpWebRequest 來 POST Data

在專案中難免會使用 Http POST 方式來傳送資料，之前很白目，用了 PreviousPage 來實作，後來才學會到用 HttpWebRequest 即可直接解決，立馬將所有的程式碼翻一遍，真是對不起，讓它出土太晚...........

Source Page (source.aspx):

  protected void Button1_Click(object sender, EventArgs e)

        {

            string url = "target.aspx";

            StringBuilder postData = new StringBuilder();

            postData.Append("first_name=" + HttpUtility.UrlEncode(TextBox1.Text) + "&");

            postData.Append("last_name=" + HttpUtility.UrlEncode(TextBox2.Text));

             // Now to Send Data.

            StreamWriter writer = null;

            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);

            request.Method = "POST";

            request.ContentType = "application/x-www-form-urlencoded";

            request.ContentLength = postData.ToString().Length;

            try

            {

                writer = new StreamWriter(request.GetRequestStream());

                writer.Write(postData.ToString());

            }

            finally

            {

                if (writer != null)

                    writer.Close();

            }

            Response.Redirect("url");

        }

Target Page(target.aspx):

..

 protected void Page_Load(object sender, EventArgs e)

{

      if (!IsPostBack)

     {

            string first = Request.Params["first_name"];

            string second = Request.Params["last_name"];   <== 收到

     }

}