HttpWebRequest.MaximumAutomaticRedirections プロパティとは何？わかりやすく解説 Weblio辞書

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.NET Framework クラスライブラリリファレンス

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HttpWebRequest.MaximumAutomaticRedirections プロパティ

要求によって実行されるリダイレクトの最大数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 MaximumAutomaticRedirections
 As Integer

Visual Basic (使用法)

Dim instance As HttpWebRequest
Dim value As Integer

value = instance.MaximumAutomaticRedirections

instance.MaximumAutomaticRedirections = value

public int MaximumAutomaticRedirections { get;
 set; }

C++

public:
property int MaximumAutomaticRedirections {
    int get ();
    void set (int value);
}

/** @property */
public int get_MaximumAutomaticRedirections
 ()

/** @property */
public void set_MaximumAutomaticRedirections
 (int value)

JScript

public function get MaximumAutomaticRedirections
 () : int

public function set MaximumAutomaticRedirections
 (value : int)

プロパティ値
要求によって実行されるリダイレクト応答の最大数。既定値は、50 です。

例外

例外の種類	条件
ArgumentException	値が 0 以下に設定されています。

解説

MaximumAutomaticRedirections プロパティは、AllowAutoRedirect プロパティが true の場合に要求によって実行されるリダイレクトの最大数を設定します。

使用例

このプロパティの値を設定するコード例を次に示します。

Visual Basic

Imports System
Imports System.Net
Imports System.Text
Imports System.IO


    Public Class Test

        ' Specify the URL to receive the request.
        Public Shared Sub
 Main(ByVal args() As String)
        Dim request As HttpWebRequest = CType(WebRequest.Create(args(0)),
 HttpWebRequest)


        ' Set some reasonable limits on resources used by this request
        request.MaximumAutomaticRedirections = 4
        request.MaximumResponseHeadersLength = 4

        ' Set credentials to use for this request.
        request.Credentials = CredentialCache.DefaultCredentials

        Dim response As HttpWebResponse = CType(request.GetResponse(),
 HttpWebResponse)

        Console.WriteLine("Content length is {0}",
 response.ContentLength)
        Console.WriteLine("Content type is {0}", response.ContentType)

        ' Get the stream associated with the response.
        Dim receiveStream As Stream = response.GetResponseStream()

        ' Pipes the stream to a higher level stream reader with the
 required encoding format. 
        Dim readStream As New
 StreamReader(receiveStream, Encoding.UTF8)

        Console.WriteLine("Response stream received.")
        Console.WriteLine(readStream.ReadToEnd())
        response.Close()
        readStream.Close()
    End Sub 'Main
End Class 'Test
'
'The output from this example will vary depending on the value passed
 into Main 
'but will be similar to the following:
'
'Content length is 1542
'Content type is text/html; charset=utf-8
'Response stream received.
'<html>
'...
'</html>
'
'

using System;
using System.Net;
using System.Text;
using System.IO;


    public class Test
    {
        // Specify the URL to receive the request.
        public static void
 Main (string[] args)
        {
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create (args[0]);

            // Set some reasonable limits on resources used by this
 request
            request.MaximumAutomaticRedirections = 4;
            request.MaximumResponseHeadersLength = 4;
            // Set credentials to use for this request.
            request.Credentials = CredentialCache.DefaultCredentials;
            HttpWebResponse response = (HttpWebResponse)request.GetResponse ();

            Console.WriteLine ("Content length is {0}", response.ContentLength);
            Console.WriteLine ("Content type is {0}", response.ContentType);
             
            // Get the stream associated with the response.
            Stream receiveStream = response.GetResponseStream ();

            // Pipes the stream to a higher level stream reader with
 the required encoding format. 
            StreamReader readStream = new StreamReader (receiveStream,
 Encoding.UTF8);

            Console.WriteLine ("Response stream received.");
            Console.WriteLine (readStream.ReadToEnd ());
            response.Close ();
            readStream.Close ();
        }
    }

/*
The output from this example will vary depending on the value
 passed into Main 
but will be similar to the following:

Content length is 1542
Content type is text/html; charset=utf-8
Response stream received.
<html>
...
</html>

*/

C++

#using <System.dll>

using namespace System;
using namespace System::Net;
using namespace System::Text;
using namespace System::IO;

// Specify the URL to receive the request.
int main()
{
   array<String^>^args = Environment::GetCommandLineArgs();
   HttpWebRequest^ request = dynamic_cast<HttpWebRequest^>(WebRequest::Create(
 args[ 1 ] ));
   
   // Set some reasonable limits on resources used by this request
   request->MaximumAutomaticRedirections = 4;
   request->MaximumResponseHeadersLength = 4;
   
   // Set credentials to use for this request.
   request->Credentials = CredentialCache::DefaultCredentials;
   HttpWebResponse^ response = dynamic_cast<HttpWebResponse^>(request->GetResponse());
   Console::WriteLine( "Content length is {0}", response->ContentLength
 );
   Console::WriteLine( "Content type is {0}", response->ContentType
 );
   
   // Get the stream associated with the response.
   Stream^ receiveStream = response->GetResponseStream();
   
   // Pipes the stream to a higher level stream reader with the required
 encoding format. 
   StreamReader^ readStream = gcnew StreamReader( receiveStream,Encoding::UTF8 );
   Console::WriteLine( "Response stream received." );
   Console::WriteLine( readStream->ReadToEnd() );
   response->Close();
   readStream->Close();
}

/*
The output from this example will vary depending on the value
 passed into Main 
but will be similar to the following:

Content length is 1542
Content type is text/html; charset=utf-8
Response stream received.
<html>
...
</html>

*/

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

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HttpWebRequest.MaximumAutomaticRedirections プロパティとは？わかりやすく解説