Dns.GetHostByAddress Methode

Definition

Namespace:

System.Net

Assembly:

System.Net.NameResolution.dll

Ruft DNS-Hostinformationen für eine IP-Adresse ab. Diese Methoden sind jetzt veraltet.

Überlädt

GetHostByAddress(IPAddress)	Veraltet. Erstellt eine IPHostEntry-Instanz aus der angegebenen IPAddress.
GetHostByAddress(String)	Veraltet. Erstellt eine IPHostEntry-Instanz aus einer IP-Adresse.

GetHostByAddress(IPAddress)

Quelle:

Dns.cs

Achtung

GetHostByAddress has been deprecated. Use GetHostEntry instead.

Erstellt eine IPHostEntry-Instanz aus der angegebenen IPAddress.

public:
 static System::Net::IPHostEntry ^ GetHostByAddress(System::Net::IPAddress ^ address);

[System.Obsolete("GetHostByAddress has been deprecated. Use GetHostEntry instead.")]
public static System.Net.IPHostEntry GetHostByAddress (System.Net.IPAddress address);

[<System.Obsolete("GetHostByAddress has been deprecated. Use GetHostEntry instead.")>]
static member GetHostByAddress : System.Net.IPAddress -> System.Net.IPHostEntry

Public Shared Function GetHostByAddress (address As IPAddress) As IPHostEntry

Parameter

address

IPAddress

IPAddress.

Gibt zurück

IPHostEntry

Eine IPHostEntry-Instanz.

Attribute

ObsoleteAttribute

Ausnahmen

ArgumentNullException

address ist null.

SocketException

Beim Auflösen von address ist ein Fehler aufgetreten.

Beispiele

Im folgenden Beispiel wird aus IPHostEntry einem IPAddresserstellt.

try
{
   IPAddress^ hostIPAddress = IPAddress::Parse( IpAddressString );
   IPHostEntry^ hostInfo = Dns::GetHostByAddress( hostIPAddress );
   
   // Get the IP address list that resolves to the host names contained in
   // the Alias property.
   array<IPAddress^>^address = hostInfo->AddressList;
   
   // Get the alias names of the addresses in the IP address list.
   array<String^>^alias = hostInfo->Aliases;
   Console::WriteLine( "Host name : {0}", hostInfo->HostName );
   Console::WriteLine( "\nAliases :" );
   for ( int index = 0; index < alias->Length; index++ )
      Console::WriteLine( alias[ index ] );
   Console::WriteLine( "\nIP address list : " );
   for ( int index = 0; index < address->Length; index++ )
      Console::WriteLine( address[ index ] );
}
catch ( SocketException^ e ) 
{
   Console::WriteLine( "SocketException caught!!!" );
   Console::WriteLine( "Source : {0}", e->Source );
   Console::WriteLine( "Message : {0}", e->Message );
}
catch ( FormatException^ e ) 
{
   Console::WriteLine( "FormatException caught!!!" );
   Console::WriteLine( "Source : {0}", e->Source );
   Console::WriteLine( "Message : {0}", e->Message );
}
catch ( ArgumentNullException^ e ) 
{
   Console::WriteLine( "ArgumentNullException caught!!!" );
   Console::WriteLine( "Source : {0}", e->Source );
   Console::WriteLine( "Message : {0}", e->Message );
}
catch ( Exception^ e ) 
{
   Console::WriteLine( "Exception caught!!!" );
   Console::WriteLine( "Source : {0}", e->Source );
   Console::WriteLine( "Message : {0}", e->Message );
}

 try
 {
    IPAddress hostIPAddress = IPAddress.Parse(IpAddressString);
    IPHostEntry hostInfo = Dns.GetHostByAddress(hostIPAddress);
    // Get the IP address list that resolves to the host names contained in
    // the Alias property.
    IPAddress[] address = hostInfo.AddressList;
    // Get the alias names of the addresses in the IP address list.
    String[] alias = hostInfo.Aliases;

    Console.WriteLine("Host name : " + hostInfo.HostName);
    Console.WriteLine("\nAliases :");
    for(int index=0; index < alias.Length; index++) {
      Console.WriteLine(alias[index]);
    }
    Console.WriteLine("\nIP address list : ");
    for(int index=0; index < address.Length; index++) {
       Console.WriteLine(address[index]);
    }
 }
 catch(SocketException e)
 {
Console.WriteLine("SocketException caught!!!");
    Console.WriteLine("Source : " + e.Source);
    Console.WriteLine("Message : " + e.Message);
 }
 catch(FormatException e)
 {
Console.WriteLine("FormatException 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(Exception e)
 {
     Console.WriteLine("Exception caught!!!");
     Console.WriteLine("Source : " + e.Source);
     Console.WriteLine("Message : " + e.Message);
 }

Public Sub DisplayHostAddress(IpAddressString As [String])
    Try
        Dim hostIPAddress As IPAddress = IPAddress.Parse(IpAddressString)
        
        ' Call the GetHostByAddress(IPAddress) method, passing an IPAddress object as an argument 
        ' to obtain an IPHostEntry instance, containing address information for the specified host.
        
        Dim hostInfo As IPHostEntry = Dns.GetHostByAddress(hostIPAddress)
        ' Get the IP address list that resolves to the host names contained in 
        ' the Alias property.
        Dim address As IPAddress() = hostInfo.AddressList
        ' Get the alias names of the above addresses in the IP address list.
        Dim [alias] As [String]() = hostInfo.Aliases
        
        Console.WriteLine(("Host name : " + hostInfo.HostName))
        Console.WriteLine(ControlChars.Cr + "Aliases :")
        Dim index As Integer
        For index = 0 To [alias].Length - 1
            Console.WriteLine([alias](index))
        Next index
        Console.WriteLine(ControlChars.Cr + "IP address list : ")

        For index = 0 To address.Length - 1
            Console.WriteLine(address(index))
        Next index
        
    Catch e As SocketException
        Console.WriteLine("SocketException caught!!!")
        Console.WriteLine(("Source : " + e.Source))
        Console.WriteLine(("Message : " + e.Message))
        
    Catch e As FormatException
        Console.WriteLine("FormatException 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 Exception
        Console.WriteLine("Exception caught!!!")
        Console.WriteLine(("Source : " + e.Source))
        Console.WriteLine(("Message : " + e.Message))
    End Try
End Sub

Hinweise

Hinweis

Dieses Mitglied gibt Ablaufverfolgungsinformationen aus, wenn Sie die Netzwerkablaufverfolgung in Ihrer Anwendung aktivieren. Weitere Informationen finden Sie unter Netzwerkablaufverfolgung in .NET Framework.

GetHostByAddress(String)

Quelle:

Dns.cs

Achtung

GetHostByAddress has been deprecated. Use GetHostEntry instead.

Erstellt eine IPHostEntry-Instanz aus einer IP-Adresse.

public:
 static System::Net::IPHostEntry ^ GetHostByAddress(System::String ^ address);

[System.Obsolete("GetHostByAddress has been deprecated. Use GetHostEntry instead.")]
public static System.Net.IPHostEntry GetHostByAddress (string address);

[<System.Obsolete("GetHostByAddress has been deprecated. Use GetHostEntry instead.")>]
static member GetHostByAddress : string -> System.Net.IPHostEntry

Public Shared Function GetHostByAddress (address As String) As IPHostEntry

Parameter

address

String

Eine IP-Adresse

Gibt zurück

IPHostEntry

Eine IPHostEntry-Instanz.

Attribute

ObsoleteAttribute

Ausnahmen

ArgumentNullException

address ist null.

SocketException

Beim Auflösen von address ist ein Fehler aufgetreten.

FormatException

address ist keine gültige IP-Adresse.

Hinweise

Hinweis

Dieses Mitglied gibt Ablaufverfolgungsinformationen aus, wenn Sie die Netzwerkablaufverfolgung in Ihrer Anwendung aktivieren. Weitere Informationen finden Sie unter Netzwerkablaufverfolgung in .NET Framework.