ASP.NET Tutorial/Development/HttpWebRequest

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Using an HttpWebRequest to post data to a remote Web page (C#)

   <source lang="csharp">

<%@ Page Language="C#" %> <%@ Import Namespace="System.IO" %> <%@ Import Namespace="System.Net" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <script runat="server"> 

   protected void Page_Load(object sender, EventArgs e)
   {
       Uri uri = new Uri("http://www.amazon.ru/");
       string data = "";
       if (uri.Scheme == Uri.UriSchemeHttp)
       {
           HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(uri);
           request.Method = WebRequestMethods.Http.Post;
           request.ContentLength = data.Length;
           request.ContentType = "application/x-www-form-urlencoded";
           StreamWriter writer = new StreamWriter(request.GetRequestStream());
           writer.Write(data);
           writer.Close();
           HttpWebResponse response = (HttpWebResponse)request.GetResponse();
           StreamReader reader = new StreamReader(response.GetResponseStream());
           string tmp = reader.ReadToEnd();
           response.Close();
           this.Panel1.GroupingText = tmp;
       }
   }

</script> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> 

   <title>Untitled Page</title>

</head> <body> 

   <form id="form1" runat="server">

       <asp:Panel ID="Panel1" runat="server"
           Height="355px" Width="480px" ScrollBars="Auto">
       </asp:Panel>
   

   </form>

</body> </html></source>


Using an HttpWebRequest to post data to a remote Web page (VB)

   <source lang="csharp">

<%@ Page Language="VB" %> <%@ Import Namespace="System.IO" %> <%@ Import Namespace="System.Net" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <script runat="server"> 

   Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
       Dim uri As New Uri("http://www.amazon.ru/" )
       Dim data As String = ""
       If (uri.Scheme = uri.UriSchemeHttp) Then
           Dim request As HttpWebRequest = HttpWebRequest.Create(uri)
           request.Method = WebRequestMethods.Http.Post
           request.ContentLength = data.Length
           request.ContentType = "application/x-www-form-urlencoded"
           Dim writer As New StreamWriter(request.GetRequestStream())
           writer.Write(data)
           writer.Close()
           Dim response As HttpWebResponse = request.GetResponse()
           Dim reader As New StreamReader(response.GetResponseStream())
           Dim tmp As String = reader.ReadToEnd()
           response.Close()
           
           Me.Panel1.GroupingText = tmp
       End If
   End Sub

</script> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> 

   <title>Untitled Page</title>

</head> <body> 

   <form id="form1" runat="server">

       <asp:Panel ID="Panel1" runat="server"
           Height="355px" Width="480px" ScrollBars="Auto">
       </asp:Panel>
   

   </form>

</body> </html></source>


Using an HttpWebRequest to retrieve a Web page (C#)

   <source lang="csharp">

<%@ Page Language="C#" %> <%@ Import Namespace="System.IO" %> <%@ Import Namespace="System.Net" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <script runat="server"> 

   protected void Page_Load(object sender, EventArgs e)
   {
       Uri uri = new Uri("http://www.microsoft.ru/default.aspx");
       if (uri.Scheme == Uri.UriSchemeHttp)
       {
           HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create( uri );
           request.Method = WebRequestMethods.Http.Get;
           HttpWebResponse response = (HttpWebResponse)request.GetResponse();
           StreamReader reader = new StreamReader(response.GetResponseStream());
           string tmp = reader.ReadToEnd();
           response.Close();
           this.Panel1.GroupingText = tmp;
       }
   }

</script> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> 

   <title>Untitled Page</title>

</head> <body> 

   <form id="form1" runat="server">

       <asp:Panel ID="Panel1" runat="server" 
           Height="355px" Width="480px" ScrollBars="Auto">
       </asp:Panel>
   

   </form>

</body> </html></source>


Using an HttpWebRequest to retrieve a Web page (VB)

   <source lang="csharp">

<%@ Page Language="VB" %> <%@ Import Namespace="System.IO" %> <%@ Import Namespace="System.Net" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <script runat="server"> 

   Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
       Dim uri As New Uri("http://www.microsoft.ru/default.aspx")
       If (uri.Scheme = uri.UriSchemeHttp) Then
           Dim request As HttpWebRequest = HttpWebRequest.Create(uri)
           request.Method = WebRequestMethods.Http.Get
           Dim response As HttpWebResponse = request.GetResponse()
           Dim reader As New StreamReader(response.GetResponseStream())
           Dim tmp As String = reader.ReadToEnd()
           response.Close()
           Me.Panel1.GroupingText = tmp
       End If
   End Sub

</script> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> 

   <title>Untitled Page</title>

</head> <body> 

   <form id="form1" runat="server">

       <asp:Panel ID="Panel1" runat="server" 
           Height="355px" Width="480px" ScrollBars="Auto">
       </asp:Panel>
   

   </form>

</body> </html></source>

Источник — «http://www.nfex.ru/index.php?title=ASP.NET_Tutorial/Development/HttpWebRequest&oldid=2586»