SslStream.Write 方法

定義

命名空間:

System.Net.Security

組件:

System.Net.Security.dll

寫入資料至此資料流。

多載

Write(Byte[])	寫入指定的資料至此資料流。
Write(Byte[], Int32, Int32)	使用指定的緩衝區和位移，將指定數目的 Byte 寫入至基礎資料流。

Write(Byte[])

來源:

SslStream.cs

寫入指定的資料至此資料流。

public:
 void Write(cli::array <System::Byte> ^ buffer);

public void Write (byte[] buffer);

override this.Write : byte[] -> unit

Public Sub Write (buffer As Byte())

參數

buffer

Byte[]

Byte 陣列，提供寫入至資料流的位元組。

例外狀況

ArgumentNullException

buffer 為 null。

IOException

寫入作業失敗。

NotSupportedException

已經有寫入作業正在進行中。

ObjectDisposedException

此物件已關閉。

InvalidOperationException

尚未執行驗證。

範例

下列程式碼範例示範如何寫入已驗證的 SslStream 。

static void ProcessClient( TcpClient^ client )
{
   
   // A client has connected. Create the 
   // SslStream using the client's network stream.
   SslStream^ sslStream = gcnew SslStream( client->GetStream(),false );
   
   // Authenticate the server but don't require the client to authenticate.
   try
   {
      sslStream->AuthenticateAsServer( serverCertificate, false, true );
      // false == no client cert required; true == check cert revocation.
      
      // Display the properties and settings for the authenticated stream.
      DisplaySecurityLevel( sslStream );
      DisplaySecurityServices( sslStream );
      DisplayCertificateInformation( sslStream );
      DisplayStreamProperties( sslStream );
      
      // Set timeouts for the read and write to 5 seconds.
      sslStream->ReadTimeout = 5000;
      sslStream->WriteTimeout = 5000;
      
      // Read a message from the client.   
      Console::WriteLine( L"Waiting for client message..." );
      String^ messageData = ReadMessage( sslStream );
      Console::WriteLine( L"Received: {0}", messageData );
      
      // Write a message to the client.
      array<Byte>^message = Encoding::UTF8->GetBytes( L"Hello from the server.<EOF>" );
      Console::WriteLine( L"Sending hello message." );
      sslStream->Write( message );
   }
   catch ( AuthenticationException^ e ) 
   {
      Console::WriteLine( L"Exception: {0}", e->Message );
      if ( e->InnerException != nullptr )
      {
         Console::WriteLine( L"Inner exception: {0}", e->InnerException->Message );
      }
      Console::WriteLine( L"Authentication failed - closing the connection." );
      sslStream->Close();
      client->Close();
      return;
   }
   finally
   {
      
      // The client stream will be closed with the sslStream
      // because we specified this behavior when creating
      // the sslStream.
      sslStream->Close();
      client->Close();
   }

}

static void ProcessClient (TcpClient client)
{
    // A client has connected. Create the
    // SslStream using the client's network stream.
    SslStream sslStream = new SslStream(
        client.GetStream(), false);
    // Authenticate the server but don't require the client to authenticate.
    try
    {
        sslStream.AuthenticateAsServer(serverCertificate, clientCertificateRequired: false, checkCertificateRevocation: true);

        // Display the properties and settings for the authenticated stream.
        DisplaySecurityLevel(sslStream);
        DisplaySecurityServices(sslStream);
        DisplayCertificateInformation(sslStream);
        DisplayStreamProperties(sslStream);

        // Set timeouts for the read and write to 5 seconds.
        sslStream.ReadTimeout = 5000;
        sslStream.WriteTimeout = 5000;
        // Read a message from the client.
        Console.WriteLine("Waiting for client message...");
        string messageData = ReadMessage(sslStream);
        Console.WriteLine("Received: {0}", messageData);

        // Write a message to the client.
        byte[] message = Encoding.UTF8.GetBytes("Hello from the server.<EOF>");
        Console.WriteLine("Sending hello message.");
        sslStream.Write(message);
    }
    catch (AuthenticationException e)
    {
        Console.WriteLine("Exception: {0}", e.Message);
        if (e.InnerException != null)
        {
            Console.WriteLine("Inner exception: {0}", e.InnerException.Message);
        }
        Console.WriteLine ("Authentication failed - closing the connection.");
        sslStream.Close();
        client.Close();
        return;
    }
    finally
    {
        // The client stream will be closed with the sslStream
        // because we specified this behavior when creating
        // the sslStream.
        sslStream.Close();
        client.Close();
    }
}

Private Shared Sub ProcessClient(client As TcpClient)
    ' A client has connected. Create the 
    ' SslStream using the client's network stream.
    Dim sslStream = New SslStream(client.GetStream(), False)

    Try

        sslStream.AuthenticateAsServer(serverCertificate, clientCertificateRequired:=False, checkCertificateRevocation:=True)
        ' Display the properties And settings for the authenticated stream.
        DisplaySecurityLevel(sslStream)
        DisplaySecurityServices(sslStream)
        DisplayCertificateInformation(sslStream)
        DisplayStreamProperties(sslStream)

        ' Set timeouts for the read and write to 5 seconds.
        sslStream.ReadTimeout = 5000
        sslStream.WriteTimeout = 5000

        ' Read a message from the client.   
        Console.WriteLine("Waiting for client message...")
        Dim messageData As String = ReadMessage(sslStream)
        Console.WriteLine("Received: {0}", messageData)

        ' Write a message to the client.
        Dim message As Byte() = Encoding.UTF8.GetBytes("Hello from the server.<EOF>")
        Console.WriteLine("Sending hello message.")
        sslStream.Write(message)
    Catch e As AuthenticationException
        Console.WriteLine("Exception: {0}", e.Message)

        If e.InnerException IsNot Nothing Then
            Console.WriteLine("Inner exception: {0}", e.InnerException.Message)
        End If

        Console.WriteLine("Authentication failed - closing the connection.")
        sslStream.Close()
        client.Close()
        Return
    Finally
        ' The client stream will be closed with the sslStream
        ' because we specified this behavior when creating
        ' the sslStream.
        sslStream.Close()
        client.Close()
    End Try
End Sub

備註

這個方法會在作業完成時封鎖。 若要在作業完成時防止封鎖，請使用 BeginWrite 方法。

在成功驗證之前，您無法呼叫這個方法。 若要驗證，請呼叫其中 AuthenticateAsClient 一個 、 或 BeginAuthenticateAsClient 、 AuthenticateAsServerBeginAuthenticateAsServer 方法。

類別 SslStream 不支援多個同時寫入作業。

Write(Byte[], Int32, Int32)

來源:

SslStream.cs

使用指定的緩衝區和位移，將指定數目的 Byte 寫入至基礎資料流。

public:
 override void Write(cli::array <System::Byte> ^ buffer, int offset, int count);

public override void Write (byte[] buffer, int offset, int count);

override this.Write : byte[] * int * int -> unit

Public Overrides Sub Write (buffer As Byte(), offset As Integer, count As Integer)

參數

buffer

Byte[]

Byte 陣列，提供寫入至資料流的位元組。

offset

Int32

Int32，內含 buffer 中以零起始的位置，從這個位置開始讀取要寫入至資料流的位元組。

count

Int32

Int32，包含要從 buffer 中讀取的位元組數。

例外狀況

ArgumentNullException

buffer 為 null。

ArgumentException

offset 小於零。

-或-

offset 大於 buffer 的長度。

-或-

offset + 計數大於 buffer 的長度。

IOException

寫入作業失敗。

NotSupportedException

已經有寫入作業正在進行中。

ObjectDisposedException

此物件已關閉。

InvalidOperationException

尚未執行驗證。

備註

這個方法會在作業完成時封鎖。 若要在作業完成作業時防止封鎖，請使用 BeginWrite 方法。

在成功驗證之前，您無法呼叫這個方法。 若要驗證，請呼叫其中 AuthenticateAsClient 一個 、 或 BeginAuthenticateAsClient 、 AuthenticateAsServerBeginAuthenticateAsServer 方法。

類別 SslStream 不支援多個同時寫入作業。