ASP.NET Tutorial/Development/HttpWebRequest — различия между версиями

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Текущая версия на 11:56, 26 мая 2010

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

<%@ 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">
    <div>
        <asp:Panel ID="Panel1" runat="server"
            Height="355px" Width="480px" ScrollBars="Auto">
        </asp:Panel>
    
    </div>
    </form>
</body>
</html>


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

<%@ 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">
    <div>
        <asp:Panel ID="Panel1" runat="server"
            Height="355px" Width="480px" ScrollBars="Auto">
        </asp:Panel>
    
    </div>
    </form>
</body>
</html>


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

<%@ 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">
    <div>
        <asp:Panel ID="Panel1" runat="server" 
            Height="355px" Width="480px" ScrollBars="Auto">
        </asp:Panel>
    
    </div>
    </form>
</body>
</html>


Using an HttpWebRequest to retrieve a Web page (VB)

<%@ 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">
    <div>
        <asp:Panel ID="Panel1" runat="server" 
            Height="355px" Width="480px" ScrollBars="Auto">
        </asp:Panel>
    
    </div>
    </form>
</body>
</html>
Источник — «http://nfex.ru/index.php?title=ASP.NET_Tutorial/Development/HttpWebRequest&oldid=2586»