HttpWebRequest.Referer プロパティ

Referer HTTP ヘッダーの値を取得または設定します。

Public Property Referer As String
[C#]
public string Referer {get; set;}
[C++]
public: __property String* get_Referer();public: __property void set_Referer(String*);
[JScript]
public function get Referer() : String;public function set Referer(String);

プロパティ値

Referer HTTP ヘッダーの値。既定値は null 参照 (Visual Basic では Nothing) です。

解説

AllowAutoRedirect プロパティが true の場合、 Referer プロパティは、要求が別のサイトにリダイレクトされたときに自動的に設定されます。

Referer HTTP ヘッダーをクリアするには、 Referer プロパティを null 参照 (Visual Basic では Nothing) に設定します。

使用例

[Visual Basic, C#, C++] Referer プロパティを設定する例を次に示します。

 
' Create a 'HttpWebRequest' object.
Dim myHttpWebRequest As HttpWebRequest = CType(WebRequest.Create(myUri), HttpWebRequest)
' Referer property is set to https://www.microsoft.com
myHttpWebRequest.Referer = "https://www.microsoft.com"
' The response object of 'HttpWebRequest' is assigned to a 'HttpWebResponse' variable.
Dim myHttpWebResponse As HttpWebResponse = CType(myHttpWebRequest.GetResponse(), HttpWebResponse)
' Displaying the contents of the page to the console
Dim streamResponse As Stream = myHttpWebResponse.GetResponseStream()
Dim streamRead As New StreamReader(streamResponse)
Dim readBuffer(256) As [Char]
Dim count As Integer = streamRead.Read(readBuffer, 0, 256)
Console.WriteLine(ControlChars.Cr + "The contents of HTML page are.......")
While count > 0
    Dim outputData As New [String](readBuffer, 0, count)
    Console.Write(outputData)
    count = streamRead.Read(readBuffer, 0, 256)
End While
Console.WriteLine(ControlChars.Cr + "HTTP Request  Headers :" + ControlChars.Cr + ControlChars.Cr + "{0}", myHttpWebRequest.Headers)
Console.WriteLine(ControlChars.Cr + "HTTP Response Headers :" + ControlChars.Cr + ControlChars.Cr + "{0}", myHttpWebResponse.Headers)
' Release the response object resources.
streamRead.Close()
 streamResponse.Close()
myHttpWebResponse.Close()
Console.WriteLine("Referer to the site is:{0}", myHttpWebRequest.Referer)

[C#] 
// Create a 'HttpWebRequest' object.
HttpWebRequest    myHttpWebRequest=(HttpWebRequest)WebRequest.Create(myUri);
// Set referer property  to https://www.microsoft.com .
myHttpWebRequest.Referer="https://www.microsoft.com";
// Assign the response object of 'HttpWebRequest' to a 'HttpWebResponse' variable.
HttpWebResponse myHttpWebResponse=(HttpWebResponse)myHttpWebRequest.GetResponse();
// Display the contents of the page to the console.
Stream streamResponse=myHttpWebResponse.GetResponseStream();
StreamReader streamRead = new StreamReader( streamResponse );
Char[] readBuffer = new Char[256];
int count = streamRead.Read( readBuffer, 0, 256 );
Console.WriteLine("\nThe contents of HTML page are.......");    
while (count > 0) 
{
    String outputData = new String(readBuffer, 0, count);
    Console.Write(outputData);
    count = streamRead.Read(readBuffer, 0, 256);
}
Console.WriteLine("\nHTTP Request  Headers :\n\n{0}",myHttpWebRequest.Headers);
Console.WriteLine("\nHTTP Response Headers :\n\n{0}",myHttpWebResponse.Headers);    
streamRead.Close();
streamResponse.Close();
// Release the response object resources.
myHttpWebResponse.Close();
Console.WriteLine("Referer to the site is:{0}",myHttpWebRequest.Referer);    

[C++] 
// Create a 'HttpWebRequest' object.
HttpWebRequest* myHttpWebRequest =
   dynamic_cast<HttpWebRequest*>(WebRequest::Create(myUri));
// Set referer property  to https://www.microsoft.com .
myHttpWebRequest->Referer=S"https://www.microsoft.com";
// Assign the response object of 'HttpWebRequest' to a 'HttpWebResponse' variable.
HttpWebResponse* myHttpWebResponse =
   dynamic_cast<HttpWebResponse*>(myHttpWebRequest->GetResponse());
// Display the contents of the page to the console.
Stream* streamResponse =
   myHttpWebResponse->GetResponseStream();
StreamReader* streamRead = new StreamReader(streamResponse);
Char readBuffer[] = new Char[256];
int count = streamRead->Read(readBuffer, 0, 256);
Console::WriteLine(S"\nThe contents of HTML page are.......");
while (count > 0) {
   String* outputData = new String(readBuffer, 0, count);
   Console::Write(outputData);
   count = streamRead->Read(readBuffer, 0, 256);
}
Console::WriteLine(S"\nHTTP Request  Headers :\n\n {0}",
   myHttpWebRequest->Headers);
Console::WriteLine(S"\nHTTP Response Headers :\n\n {0}",
   myHttpWebResponse->Headers);
streamRead->Close();
streamResponse->Close();
// Release the response object resources.
myHttpWebResponse->Close();
Console::WriteLine(S"Referer to the site is: {0}",
   myHttpWebRequest->Referer);

[JScript] JScript のサンプルはありません。Visual Basic、C#、および C++ のサンプルを表示するには、このページの左上隅にある言語のフィルタ ボタン をクリックします。

必要条件

プラットフォーム: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 ファミリ, .NET Compact Framework - Windows CE .NET, Common Language Infrastructure (CLI) Standard

参照

HttpWebRequest クラス | HttpWebRequest メンバ | System.Net 名前空間