HttpWebRequest.Referer プロパティ

.NET Framework クラス ライブラリ リファレンス

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。

名前空間: System.Net
アセンブリ: System (system.dll 内)
構文

Visual Basic (宣言)

Public Property Referer As
 String

Visual Basic (使用法)

Dim instance As HttpWebRequest
Dim value As String

value = instance.Referer

instance.Referer = value

C#

public string Referer { get;
 set; }

C++

public:
property String^ Referer {
    String^ get ();
    void set (String^ value);
}

J#

/** @property */
public String get_Referer ()

/** @property */
public void set_Referer (String value)

JScript

public function get Referer
 () : String

public function set Referer
 (value : 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。

メモ
このプロパティの値は WebHeaderCollection に格納されます。WebHeaderCollection が設定されている場合、プロパティ値は失われます。

使用例

Referer プロパティを設定するコード例を次に示します。

Visual Basic

' Create a 'HttpWebRequest' object.
Dim myHttpWebRequest As HttpWebRequest = CType(WebRequest.Create(myUri),
 HttpWebRequest)
' Referer property is set to http://www.microsoft.com
myHttpWebRequest.Referer = "http://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 http://www.microsoft.com .
myHttpWebRequest.Referer="http://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 = (HttpWebRequest^)( WebRequest::Create( myUri )
 );
// Set referer property  to http://www.microsoft.com .
myHttpWebRequest->Referer = "http://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 = gcnew StreamReader( streamResponse );
array<Char>^ readBuffer = gcnew array<Char>(256);
int count = streamRead->Read( readBuffer, 0, 256 );
Console::WriteLine( "\nThe contents of HTML page are......." );
while ( count > 0 )
{
   String^ outputData = gcnew 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
 );

J#

// Create a 'HttpWebRequest' object.
HttpWebRequest myHttpWebRequest = (HttpWebRequest)
    WebRequest.Create(myUri);
// Set referer property  to http://www.microsoft.com.
myHttpWebRequest.set_Referer("http://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.get_Headers());
Console.WriteLine("\nHTTP Response Headers :\n\n{0}", 
    myHttpWebResponse.get_Headers());
streamRead.Close();
streamResponse.Close();

// Release the response object resources.
myHttpWebResponse.Close();
Console.WriteLine("Referer to the site is:{0}", 
    myHttpWebRequest.get_Referer());

プラットフォーム

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

開発プラットフォームの中には、.NET Framework によってサポートされていないバージョンがあります。サポートされているバージョンについては、「システム要件」を参照してください。

バージョン情報

.NET Framework
サポート対象 : 2.0、1.1、1.0
.NET Compact Framework
サポート対象 : 2.0、1.0

参照

関連項目
HttpWebRequest クラス
HttpWebRequest メンバ
System.Net 名前空間