WebRequest.RequestUri Properti

Definisi

Ruang nama:

System.Net

Rakitan:

System.Net.Requests.dll

Sumber:

WebRequest.cs

Ketika ditimpa di kelas turunan, mendapatkan URI sumber daya Internet yang terkait dengan permintaan.

public:
 virtual property Uri ^ RequestUri { Uri ^ get(); };

public virtual Uri RequestUri { get; }

member this.RequestUri : Uri

Public Overridable ReadOnly Property RequestUri As Uri

Nilai Properti

Uri

Uri mewakili sumber daya yang terkait dengan permintaan.

Pengecualian

NotImplementedException

Setiap upaya dilakukan untuk mendapatkan atau mengatur properti, ketika properti tidak ditimpa di kelas turunan.

Contoh

Contoh berikut memeriksa RequestUri properti untuk menentukan situs yang awalnya diminta.

// Create a new WebRequest object to the mentioned URL.
WebRequest^ myWebRequest = WebRequest::Create( "http://www.contoso.com" );
Console::WriteLine( "\nThe Uri requested is {0}", myWebRequest->RequestUri);
// Assign the response object of 'WebRequest' to a 'WebResponse' variable.
WebResponse^ myWebResponse = myWebRequest->GetResponse();
      // Get the stream containing content returned by the server.
Stream^ streamResponse = myWebResponse->GetResponseStream();
      Console::WriteLine("\nThe Uri that responded to the request is '{0}'",myWebResponse->ResponseUri);
StreamReader^ reader = gcnew StreamReader(streamResponse);
      // Read the content.
String^ responseFromServer = reader->ReadToEnd();
// Display the content.
Console::WriteLine("\nThe HTML Contents received:");
Console::WriteLine (responseFromServer);
// Cleanup the streams and the response.
reader->Close();
streamResponse->Close();
myWebResponse->Close();

      // Create a new WebRequest Object to the mentioned URL.
      WebRequest myWebRequest=WebRequest.Create("http://www.contoso.com");
      Console.WriteLine("\nThe Uri that was requested is {0}",myWebRequest.RequestUri);
      // Assign the response object of 'WebRequest' to a 'WebResponse' variable.
      WebResponse myWebResponse=myWebRequest.GetResponse();
      // Get the stream containing content returned by the server.
      Stream streamResponse=myWebResponse.GetResponseStream();
      Console.WriteLine("\nThe Uri that responded to the WebRequest is '{0}'",myWebResponse.ResponseUri);
StreamReader reader = new StreamReader (streamResponse);
      // Read the content.
string responseFromServer = reader.ReadToEnd ();
// Display the content.
Console.WriteLine("\nThe HTML Contents received:");
Console.WriteLine (responseFromServer);
// Cleanup the streams and the response.
reader.Close ();
streamResponse.Close ();
myWebResponse.Close ();

' Create a new WebRequest Object to the mentioned URL.
Dim myWebRequest As WebRequest = WebRequest.Create("http://www.contoso.com")
Console.WriteLine(ControlChars.Cr + ControlChars.Lf +"The Uri that was requested is {0}", myWebRequest.RequestUri)
' Assign the response object of 'WebRequest' to a 'WebResponse' variable.
Dim myWebResponse As WebResponse = myWebRequest.GetResponse()
      ' Get the stream containing content returned by the server.
Dim streamResponse As Stream = myWebResponse.GetResponseStream()
Console.WriteLine(ControlChars.Cr + ControlChars.Lf + "The Uri that responded to the request is {0}", myWebResponse.ResponseUri)
' Print the HTML contents of the page to the console. 
Dim reader As New StreamReader(streamResponse)
      ' Read the content.
      Dim responseFRomServer As String = reader.ReadToEnd()
' Display the content.
Console.WriteLine(ControlChars.Cr + ControlChars.Lf +"The HTML Contents received:")
Console.WriteLine (responseFromServer)
' Cleanup the streams and the response.
reader.Close ()
streamResponse.Close ()
myWebResponse.Close ()

Keterangan

Saat ditimpa di kelas turunan, RequestUri properti berisi Uri instans yang Create digunakan metode untuk membuat permintaan.

Catatan

Kelasnya WebRequest adalah abstract kelas. Perilaku WebRequest aktual instans pada durasi ditentukan oleh kelas turunan yang dikembalikan oleh WebRequest.Create metode . Untuk informasi selengkapnya tentang nilai dan pengecualian default, lihat dokumentasi untuk kelas turunan, seperti HttpWebRequest dan FileWebRequest.

Catatan Bagi Implementer

RequestUri harus berisi instans asli Uri yang diteruskan ke Create(Uri) metode . Jika protokol dapat mengalihkan permintaan ke URI yang berbeda untuk melayani permintaan, turunan harus menyediakan properti untuk berisi URI yang benar-benar melayani permintaan

Lihat juga

• RequestUri
• Address