Socket Konstruktor

Referensi

Definisi

Ruang nama:: System.Net.Sockets

Rakitan:: System.Net.Sockets.dll

Rakitan:: System.dll

Rakitan:: netstandard.dll

Rakitan:: System.dll, System.Net.Sockets.dll

Penting

Beberapa informasi terkait produk prarilis yang dapat diubah secara signifikan sebelum dirilis. Microsoft tidak memberikan jaminan, tersirat maupun tersurat, sehubungan dengan informasi yang diberikan di sini.

Menginisialisasi instans baru kelas Socket.

Overload

Socket(SafeSocketHandle)	Menginisialisasi instans Socket baru kelas untuk handel soket yang ditentukan.
Socket(SocketInformation)	Menginisialisasi instans Socket baru kelas menggunakan nilai yang ditentukan yang dikembalikan dari DuplicateAndClose(Int32).
Socket(SocketType, ProtocolType)	Menginisialisasi instans Socket baru kelas menggunakan jenis soket dan protokol yang ditentukan. Jika sistem operasi mendukung IPv6, konstruktor ini membuat soket mode ganda; jika tidak, ia membuat soket IPv4.
Socket(AddressFamily, SocketType, ProtocolType)	Menginisialisasi instans Socket baru kelas menggunakan keluarga alamat, jenis soket, dan protokol yang ditentukan.

Socket(SafeSocketHandle)

Sumber:: Socket.cs

Sumber:: Socket.cs

Sumber:: Socket.cs

Menginisialisasi instans Socket baru kelas untuk handel soket yang ditentukan.

public:
 Socket(System::Net::Sockets::SafeSocketHandle ^ handle);

public Socket (System.Net.Sockets.SafeSocketHandle handle);

new System.Net.Sockets.Socket : System.Net.Sockets.SafeSocketHandle -> System.Net.Sockets.Socket

Public Sub New (handle As SafeSocketHandle)

Parameter

handle: SafeSocketHandle

Handel soket untuk soket yang akan dirangkum Socket objek.

Pengecualian

ArgumentNullException

handleadalah null.

ArgumentException

handle tidak valid.

SocketException

handle bukan soket atau informasi tentang soket tidak dapat diakses.

Keterangan

Metode ini mengisi instans Socket dengan data yang dikumpulkan dari yang disediakan SafeSocketHandle. Sistem operasi yang berbeda menyediakan berbagai tingkat dukungan untuk mengkueri handel soket atau pendeskripsi file untuk properti dan konfigurasinya. Beberapa API publik pada instans yang dihasilkan Socket mungkin berbeda berdasarkan sistem operasi, seperti ProtocolType dan Blocking.

Berlaku untuk

Socket(SocketInformation)

Sumber:: Socket.cs

Sumber:: Socket.cs

Sumber:: Socket.cs

Menginisialisasi instans Socket baru kelas menggunakan nilai yang ditentukan yang dikembalikan dari DuplicateAndClose(Int32).

public:
 Socket(System::Net::Sockets::SocketInformation socketInformation);

[System.Runtime.Versioning.SupportedOSPlatform("windows")]
public Socket (System.Net.Sockets.SocketInformation socketInformation);

public Socket (System.Net.Sockets.SocketInformation socketInformation);

[<System.Runtime.Versioning.SupportedOSPlatform("windows")>]
new System.Net.Sockets.Socket : System.Net.Sockets.SocketInformation -> System.Net.Sockets.Socket

new System.Net.Sockets.Socket : System.Net.Sockets.SocketInformation -> System.Net.Sockets.Socket

Public Sub New (socketInformation As SocketInformation)

Parameter

socketInformation: SocketInformation

Informasi soket yang dikembalikan oleh DuplicateAndClose(Int32).

Atribut: SupportedOSPlatformAttribute

Keterangan

Jika Anda memanggil Socket konstruktor beberapa kali dengan array byte yang sama dengan argumen untuk setiap panggilan, Anda akan membuat beberapa terkelola Socketdengan soket dasar yang sama. Praktik ini sangat tidak disarankan.

Berlaku untuk

Socket(SocketType, ProtocolType)

Sumber:: Socket.cs

Sumber:: Socket.cs

Sumber:: Socket.cs

Menginisialisasi instans Socket baru kelas menggunakan jenis soket dan protokol yang ditentukan. Jika sistem operasi mendukung IPv6, konstruktor ini membuat soket mode ganda; jika tidak, ia membuat soket IPv4.

public:
 Socket(System::Net::Sockets::SocketType socketType, System::Net::Sockets::ProtocolType protocolType);

public Socket (System.Net.Sockets.SocketType socketType, System.Net.Sockets.ProtocolType protocolType);

new System.Net.Sockets.Socket : System.Net.Sockets.SocketType * System.Net.Sockets.ProtocolType -> System.Net.Sockets.Socket

Public Sub New (socketType As SocketType, protocolType As ProtocolType)

Parameter

socketType: SocketType

Salah SocketType satu nilai.

protocolType: ProtocolType

Salah ProtocolType satu nilai.

Pengecualian

SocketException

Kombinasi socketType dan protocolType menghasilkan soket yang tidak valid.

Keterangan

Parameter socketType menentukan jenis Socket kelas dan protocolType parameter menentukan protokol yang digunakan oleh Socket. Dua parameter tidak independen. Socket Seringkali jenisnya implisit dalam protokol. Jika kombinasi jenis Socket dan jenis protokol menghasilkan tidak valid Socket, konstruktor ini melempar SocketException.

Catatan

Jika konstruktor ini melempar SocketException, gunakan SocketException.ErrorCode properti untuk mendapatkan kode kesalahan tertentu. Setelah Anda mendapatkan kode ini, lihat dokumentasi kode kesalahan API Windows Sockets versi 2 untuk deskripsi terperinci tentang kesalahan tersebut.

Catatan

Anggota ini mengeluarkan informasi pelacakan saat Anda mengaktifkan pelacakan jaringan di aplikasi Anda. Untuk informasi selengkapnya, lihat Pelacakan Jaringan di .NET Framework.

Berlaku untuk

Socket(AddressFamily, SocketType, ProtocolType)

Sumber:: Socket.cs

Sumber:: Socket.cs

Sumber:: Socket.cs

Menginisialisasi instans Socket baru kelas menggunakan keluarga alamat, jenis soket, dan protokol yang ditentukan.

public:
 Socket(System::Net::Sockets::AddressFamily addressFamily, System::Net::Sockets::SocketType socketType, System::Net::Sockets::ProtocolType protocolType);

public Socket (System.Net.Sockets.AddressFamily addressFamily, System.Net.Sockets.SocketType socketType, System.Net.Sockets.ProtocolType protocolType);

new System.Net.Sockets.Socket : System.Net.Sockets.AddressFamily * System.Net.Sockets.SocketType * System.Net.Sockets.ProtocolType -> System.Net.Sockets.Socket

Public Sub New (addressFamily As AddressFamily, socketType As SocketType, protocolType As ProtocolType)

Parameter

addressFamily: AddressFamily

Salah AddressFamily satu nilai.

socketType: SocketType

Salah SocketType satu nilai.

protocolType: ProtocolType

Salah ProtocolType satu nilai.

Pengecualian

SocketException

Kombinasi addressFamily, socketType, dan protocolType menghasilkan soket yang tidak valid.

Contoh

Contoh kode berikut menunjukkan cara membuat instans Socket kelas .

#using <System.dll>

using namespace System;
using namespace System::Text;
using namespace System::IO;
using namespace System::Net;
using namespace System::Net::Sockets;
String^ DoSocketGet( String^ server )
{
   
   //Set up variables and String to write to the server.
   Encoding^ ASCII = Encoding::ASCII;
   String^ Get =  "GET / HTTP/1.1\r\nHost: ";
   Get->Concat( server,  "\r\nConnection: Close\r\n\r\n" );
   array<Byte>^ByteGet = ASCII->GetBytes( Get );
   array<Byte>^RecvBytes = gcnew array<Byte>(256);
   String^ strRetPage = nullptr;
   
   // IPAddress and IPEndPoint represent the endpoint that will
   //   receive the request.
   // Get first IPAddress in list return by DNS.
   try
   {
      
      // Define those variables to be evaluated in the next for loop and 
      // then used to connect to the server. These variables are defined
      // outside the for loop to make them accessible there after.
      Socket^ s = nullptr;
      IPEndPoint^ hostEndPoint;
      IPAddress^ hostAddress = nullptr;
      int conPort = 80;
      
      // Get DNS host information.
      IPHostEntry^ hostInfo = Dns::Resolve( server );
      
      // Get the DNS IP addresses associated with the host.
      array<IPAddress^>^IPaddresses = hostInfo->AddressList;
      
      // Evaluate the socket and receiving host IPAddress and IPEndPoint. 
      for ( int index = 0; index < IPaddresses->Length; index++ )
      {
         hostAddress = IPaddresses[ index ];
         hostEndPoint = gcnew IPEndPoint( hostAddress,conPort );
         
         // Creates the Socket to send data over a TCP connection.
         s = gcnew Socket( AddressFamily::InterNetwork,SocketType::Stream,ProtocolType::Tcp );
         
         // Connect to the host using its IPEndPoint.
         s->Connect( hostEndPoint );
         if (  !s->Connected )
         {
            
            // Connection failed, try next IPaddress.
            strRetPage =  "Unable to connect to host";
            s = nullptr;
            continue;
         }

         
         // Sent the GET request to the host.
         s->Send( ByteGet, ByteGet->Length, SocketFlags::None );
         

      }
      
      // Receive the host home page content and loop until all the data is received.
      Int32 bytes = s->Receive( RecvBytes, RecvBytes->Length, SocketFlags::None );
      strRetPage =  "Default HTML page on ";
      strRetPage->Concat( server,  ":\r\n", ASCII->GetString( RecvBytes, 0, bytes ) );
      while ( bytes > 0 )
      {
         bytes = s->Receive( RecvBytes, RecvBytes->Length, SocketFlags::None );
         strRetPage->Concat( ASCII->GetString( RecvBytes, 0, bytes ) );
      }

      
   }
   catch ( SocketException^ e ) 
   {
      Console::WriteLine(  "SocketException caught!!!" );
      Console::Write(  "Source : " );
      Console::WriteLine( e->Source );
      Console::Write(  "Message : " );
      Console::WriteLine( e->Message );
   }
   catch ( ArgumentNullException^ e ) 
   {
      Console::WriteLine(  "ArgumentNULLException caught!!!" );
      Console::Write(  "Source : " );
      Console::WriteLine( e->Source );
      Console::Write(  "Message : " );
      Console::WriteLine( e->Message );
   }
   catch ( NullReferenceException^ e ) 
   {
      Console::WriteLine(  "NULLReferenceException caught!!!" );
      Console::Write(  "Source : " );
      Console::WriteLine( e->Source );
      Console::Write(  "Message : " );
      Console::WriteLine( e->Message );
   }
   catch ( Exception^ e ) 
   {
      Console::WriteLine(  "Exception caught!!!" );
      Console::Write(  "Source : " );
      Console::WriteLine( e->Source );
      Console::Write(  "Message : " );
      Console::WriteLine( e->Message );
   }

   return strRetPage;
}

int main()
{
   Console::WriteLine( DoSocketGet(  "localhost" ) );
}

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

public class Sample
{

  public static string DoSocketGet(string server)
  {
    //Set up variables and String to write to the server.
    Encoding ASCII = Encoding.ASCII;
    string Get = "GET / HTTP/1.1\r\nHost: " + server +
                 "\r\nConnection: Close\r\n\r\n";
    Byte[] ByteGet = ASCII.GetBytes(Get);
    Byte[] RecvBytes = new Byte[256];
    String strRetPage = null;

    // IPAddress and IPEndPoint represent the endpoint that will
    //   receive the request.
    // Get first IPAddress in list return by DNS.

    try
    {

      // Define those variables to be evaluated in the next for loop and
      // then used to connect to the server. These variables are defined
      // outside the for loop to make them accessible there after.
      Socket s = null;
      IPEndPoint hostEndPoint;
      IPAddress hostAddress = null;
      int conPort = 80;

      // Get DNS host information.
      IPHostEntry hostInfo = Dns.GetHostEntry(server);
      // Get the DNS IP addresses associated with the host.
      IPAddress[] IPaddresses = hostInfo.AddressList;

      // Evaluate the socket and receiving host IPAddress and IPEndPoint.
      for (int index=0; index<IPaddresses.Length; index++)
      {
        hostAddress = IPaddresses[index];
        hostEndPoint = new IPEndPoint(hostAddress, conPort);


        // Creates the Socket to send data over a TCP connection.
        s = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp );


        // Connect to the host using its IPEndPoint.
        s.Connect(hostEndPoint);

        if (!s.Connected)
        {
          // Connection failed, try next IPaddress.
          strRetPage = "Unable to connect to host";
          s = null;
          continue;
        }

        // Sent the GET request to the host.
        s.Send(ByteGet, ByteGet.Length, 0);

      } // End of the for loop.


      // Receive the host home page content and loop until all the data is received.
      Int32 bytes = s.Receive(RecvBytes, RecvBytes.Length, 0);
      strRetPage = "Default HTML page on " + server + ":\r\n";
      strRetPage = strRetPage + ASCII.GetString(RecvBytes, 0, bytes);

      while (bytes > 0)
      {
        bytes = s.Receive(RecvBytes, RecvBytes.Length, 0);
        strRetPage = strRetPage + ASCII.GetString(RecvBytes, 0, bytes);
      }

    } // End of the try block.

    catch(SocketException e)
    {
      Console.WriteLine("SocketException caught!!!");
      Console.WriteLine("Source : " + e.Source);
      Console.WriteLine("Message : " + e.Message);
    }
    catch(ArgumentNullException e)
    {
      Console.WriteLine("ArgumentNullException caught!!!");
      Console.WriteLine("Source : " + e.Source);
      Console.WriteLine("Message : " + e.Message);
    }
    catch(NullReferenceException e)
    {
      Console.WriteLine("NullReferenceException caught!!!");
      Console.WriteLine("Source : " + e.Source);
      Console.WriteLine("Message : " + e.Message);
    }
    catch(Exception e)
    {
      Console.WriteLine("Exception caught!!!");
      Console.WriteLine("Source : " + e.Source);
      Console.WriteLine("Message : " + e.Message);
    }

    return strRetPage;
}
   public static void Main()
   {
      Console.WriteLine(DoSocketGet("localhost"));
   }
 }

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

 _

Public Class Sample
   
   
   Public Shared Function DoSocketGet(server As String) As String
      'Set up variables and String to write to the server.
    Dim ASCII As Encoding = Encoding.ASCII
    Dim [Get] As String = "GET / HTTP/1.1" + ControlChars.Lf + ControlChars.NewLine + "Host: " + server + ControlChars.Lf + ControlChars.NewLine + "Connection: Close" + ControlChars.Lf + ControlChars.NewLine + ControlChars.Lf + ControlChars.NewLine
    Dim ByteGet As [Byte]() = ASCII.GetBytes([Get])
    Dim RecvBytes(256) As [Byte]
    Dim strRetPage As [String] = Nothing


      
      ' IPAddress and IPEndPoint represent the endpoint that will
      '   receive the request.
      ' Get first IPAddress in list return by DNS.
      Try

 

         ' Define those variables to be evaluated in the next for loop and 
         ' then used to connect to the server. These variables are defined
         ' outside the for loop to make them accessible there after.
         Dim s As Socket = Nothing
         Dim hostEndPoint As IPEndPoint
         Dim hostAddress As IPAddress = Nothing
         Dim conPort As Integer = 80
         
         ' Get DNS host information.
         Dim hostInfo As IPHostEntry = Dns.Resolve(server)
         ' Get the DNS IP addresses associated with the host.
         Dim IPaddresses As IPAddress() = hostInfo.AddressList
         
         ' Evaluate the socket and receiving host IPAddress and IPEndPoint. 
      Dim index As Integer = 0
      For index = 0 To IPaddresses.Length - 1
        hostAddress = IPaddresses(index)
        hostEndPoint = New IPEndPoint(hostAddress, conPort)


        ' Creates the Socket to send data over a TCP connection.
        s = New Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp)


        ' Connect to the host using its IPEndPoint.
        s.Connect(hostEndPoint)

        If Not s.Connected Then
          ' Connection failed, try next IPaddress.
          strRetPage = "Unable to connect to host"
          s = Nothing
          GoTo ContinueFor1
        End If


        ' Sent the GET request to the host.
        s.Send(ByteGet, ByteGet.Length, 0)


ContinueFor1:
      Next index  ' End of the for loop.
      



      ' Receive the host home page content and loop until all the data is received.

      'Dim bytes As Int32 = s.Receive(RecvBytes, RecvBytes.Length, 0)
      Dim bytes As Int32 = s.Receive(RecvBytes, RecvBytes.Length, 0)

      strRetPage = "Default HTML page on " + server + ":\r\n"
      strRetPage = "Default HTML page on " + server + ":" + ControlChars.Lf + ControlChars.NewLine

      Dim i As Integer

      While bytes > 0

        bytes = s.Receive(RecvBytes, RecvBytes.Length, 0)

        strRetPage = strRetPage + ASCII.GetString(RecvBytes, 0, bytes)

      End While


      ' End of the try block.
    Catch e As SocketException
         Console.WriteLine("SocketException caught!!!")
         Console.WriteLine(("Source : " + e.Source))
         Console.WriteLine(("Message : " + e.Message))
      Catch e As ArgumentNullException
         Console.WriteLine("ArgumentNullException caught!!!")
         Console.WriteLine(("Source : " + e.Source))
         Console.WriteLine(("Message : " + e.Message))
      Catch e As NullReferenceException
         Console.WriteLine("NullReferenceException caught!!!")
         Console.WriteLine(("Source : " + e.Source))
         Console.WriteLine(("Message : " + e.Message))
      Catch e As Exception
         Console.WriteLine("Exception caught!!!")
         Console.WriteLine(("Source : " + e.Source))
         Console.WriteLine(("Message : " + e.Message))
      End Try
      
      Return strRetPage
   End Function 'DoSocketGet
    
   Public Shared Sub Main()
    Console.WriteLine(DoSocketGet("localhost"))
   End Sub
End Class

Keterangan

Parameter addressFamily menentukan skema pengalamatan yang Socket digunakan kelas, socketType parameter menentukan jenis Socket kelas, dan protocolType parameter menentukan protokol yang digunakan oleh Socket. Tiga parameter tidak independen. Beberapa keluarga alamat membatasi protokol mana yang dapat digunakan dengan mereka, dan seringkali Socket jenisnya implisit dalam protokol. Jika kombinasi jenis keluarga alamat, Socket jenis, dan protokol menghasilkan tidak valid Socket, konstruktor ini akan melempar SocketException.

Catatan

Anggota ini mengeluarkan informasi pelacakan saat Anda mengaktifkan pelacakan jaringan di aplikasi Anda. Untuk informasi selengkapnya, lihat Pelacakan Jaringan di .NET Framework.

Lihat juga

Berlaku untuk

Bagikan melalui

Socket Konstruktor

Definisi

Overload

Socket(SafeSocketHandle)

Parameter

Pengecualian

Keterangan

Berlaku untuk

Socket(SocketInformation)

Parameter

Keterangan

Berlaku untuk

Socket(SocketType, ProtocolType)

Parameter

Pengecualian

Keterangan

Berlaku untuk

Socket(AddressFamily, SocketType, ProtocolType)

Parameter

Pengecualian

Contoh

Keterangan

Lihat juga

Berlaku untuk

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