WebResponse.GetResponseStream メソッド

定義

派生クラスでオーバーライドされると、インターネット リソースからデータ ストリームを返します。

public:
 abstract System::IO::Stream ^ GetResponseStream();
public:
 virtual System::IO::Stream ^ GetResponseStream();
public abstract System.IO.Stream GetResponseStream ();
public virtual System.IO.Stream GetResponseStream ();
abstract member GetResponseStream : unit -> System.IO.Stream
abstract member GetResponseStream : unit -> System.IO.Stream
override this.GetResponseStream : unit -> System.IO.Stream
Public MustOverride Function GetResponseStream () As Stream
Public Overridable Function GetResponseStream () As Stream

戻り値

インターネット リソースからデータを読み取るための Stream クラスのインスタンス。

例外

メソッドが派生クラスでオーバーライドされていないのに、そのメソッドへのアクセスが試行されました。

次の例では、 を使用 GetResponseStream して インスタンスを StreamReader 返します。 小さなローカル バッファーを使用して、 から StreamReader データを読み取り、コンソールに出力します。

// Create a 'WebRequest' object with the specified url.
WebRequest^ myWebRequest = WebRequest::Create( "http://www.contoso.com" );

// Send the 'WebRequest' and wait for response.
WebResponse^ myWebResponse = myWebRequest->GetResponse();

// Obtain a 'Stream' object associated with the response object.
Stream^ ReceiveStream = myWebResponse->GetResponseStream();

Encoding^ encode = System::Text::Encoding::GetEncoding( "utf-8" );

// Pipe the stream to a higher level stream reader with the required encoding format.
StreamReader^ readStream = gcnew StreamReader( ReceiveStream,encode );
Console::WriteLine( "\nResponse stream received" );
array<Char>^ read = gcnew array<Char>(256);

// Read 256 charcters at a time.
int count = readStream->Read( read, 0, 256 );
Console::WriteLine( "HTML...\r\n" );

while ( count > 0 )
{
   // Dump the 256 characters on a string and display the string onto the console.
   String^ str = gcnew String( read,0,count );
   Console::Write( str );
   count = readStream->Read( read, 0, 256 );
}

Console::WriteLine( "" );
// Release the resources of stream object.
readStream->Close();

// Release the resources of response object.
myWebResponse->Close();

// Create a 'WebRequest' object with the specified url. 
WebRequest myWebRequest = WebRequest.Create("http://www.contoso.com");

// Send the 'WebRequest' and wait for response.
using WebResponse myWebResponse = myWebRequest.GetResponse();

// Obtain a 'Stream' object associated with the response object.
Stream ReceiveStream = myWebResponse.GetResponseStream();

Encoding encode = System.Text.Encoding.GetEncoding("utf-8");

// Pipe the stream to a higher level stream reader with the required encoding format. 
StreamReader readStream = new StreamReader(ReceiveStream, encode);
Console.WriteLine("\nResponse stream received");
Char[] read = new Char[256];

// Read 256 charcters at a time.    
int count = readStream.Read(read, 0, 256);
Console.WriteLine("HTML...\r\n");

while (count > 0)
{
    // Dump the 256 characters on a string and display the string onto the console.
    String str = new String(read, 0, count);
    Console.Write(str);
    count = readStream.Read(read, 0, 256);
}
Console.WriteLine();

' Create a 'WebRequest' object with the specified url 
Dim myWebRequest As WebRequest = WebRequest.Create("www.contoso.com")

' Send the 'WebRequest' and wait for response.
Using myWebResponse As WebResponse = myWebRequest.GetResponse()

    ' Call method 'GetResponseStream' to obtain stream associated with the response object
    Dim ReceiveStream As Stream = myWebResponse.GetResponseStream()
    
    Dim encode As Encoding = System.Text.Encoding.GetEncoding("utf-8")

    ' Pipe the stream to a higher level stream reader with the required encoding format.
    Dim readStream As New StreamReader(ReceiveStream, encode)
    Console.WriteLine(ControlChars.Cr + "Response stream received")
    Dim read(256) As [Char]

    ' Read 256 charcters at a time    .
    Dim count As Integer = readStream.Read(read, 0, 256)
    Console.WriteLine("HTML..." + ControlChars.Lf + ControlChars.Cr)
    While count > 0

        ' Dump the 256 characters on a string and display the string onto the console.
        Dim str As New [String](read, 0, count)
        Console.Write(str)
        count = readStream.Read(read, 0, 256)

    End While
    Console.WriteLine("")
End Using

注釈

メソッドは GetResponseStream 、インターネット リソースからデータ ストリームを返します。

注意

システム リソースが不足しないように、応答ストリームを閉じる必要があります。 応答ストリームは、 または を呼び出 Stream.Close すことによって閉じることができます。 Close

適用対象

こちらもご覧ください