Dns.GetHostByAddress Metoda

Reference

Definice

Obor názvů:: System.Net

Sestavení:: netstandard.dll, System.Net.NameResolution.dll

Sestavení:: System.Net.NameResolution.dll

Sestavení:: System.dll

Sestavení:: netstandard.dll

Důležité

Některé informace platí pro předběžně vydaný produkt, který se může zásadně změnit, než ho výrobce nebo autor vydá. Microsoft neposkytuje žádné záruky, výslovné ani předpokládané, týkající se zde uváděných informací.

Získá informace o hostiteli DNS pro IP adresu. Tyto metody jsou nyní zastaralé.

Přetížení

GetHostByAddress(IPAddress)	Zastaralé. Zastaralé. Zastaralé. IPHostEntry Vytvoří instanci ze zadaného IPAddressobjektu .
GetHostByAddress(String)	Zastaralé. Zastaralé. Zastaralé. Vytvoří IPHostEntry instanci z IP adresy.

GetHostByAddress(IPAddress)

Zdroj:: Dns.cs

Zdroj:: Dns.cs

Zdroj:: Dns.cs

Upozornění

GetHostByAddress is obsoleted for this type, please use GetHostEntry instead. https://go.microsoft.com/fwlink/?linkid=14202

Upozornění

GetHostByAddress has been deprecated. Use GetHostEntry instead.

Upozornění

GetHostByAddress is obsoleted for this type, please use GetHostEntry instead. http://go.microsoft.com/fwlink/?linkid=14202

IPHostEntry Vytvoří instanci ze zadaného IPAddressobjektu .

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

[System.Obsolete("GetHostByAddress is obsoleted for this type, please use GetHostEntry instead. https://go.microsoft.com/fwlink/?linkid=14202")]
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 is obsoleted for this type, please use GetHostEntry instead. http://go.microsoft.com/fwlink/?linkid=14202")]
public static System.Net.IPHostEntry GetHostByAddress(System.Net.IPAddress address);

public static System.Net.IPHostEntry GetHostByAddress(System.Net.IPAddress address);

[<System.Obsolete("GetHostByAddress is obsoleted for this type, please use GetHostEntry instead. https://go.microsoft.com/fwlink/?linkid=14202")>]
static member GetHostByAddress : System.Net.IPAddress -> System.Net.IPHostEntry

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

[<System.Obsolete("GetHostByAddress is obsoleted for this type, please use GetHostEntry instead. http://go.microsoft.com/fwlink/?linkid=14202")>]
static member GetHostByAddress : System.Net.IPAddress -> System.Net.IPHostEntry

static member GetHostByAddress : System.Net.IPAddress -> System.Net.IPHostEntry

Public Shared Function GetHostByAddress (address As IPAddress) As IPHostEntry

address je null.

SocketException

Při řešení chyby dojde k addresschybě .

Příklady

Následující příklad vytvoří z IPHostEntry objektu IPAddress.

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

Poznámky

Poznámka

Tento člen generuje informace o trasování, když povolíte trasování sítě ve vaší aplikaci. Další informace najdete v tématu Trasování sítě v rozhraní .NET Framework.

Platí pro

.NET 9 a další verze

Produkt	Verze (zastaralé)
.NET	(Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9)
.NET Framework	1.1 (2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1)
.NET Standard	(2.0, 2.1)

GetHostByAddress(String)

Zdroj:: Dns.cs

Zdroj:: Dns.cs

Zdroj:: Dns.cs

Upozornění

GetHostByAddress is obsoleted for this type, please use GetHostEntry instead. https://go.microsoft.com/fwlink/?linkid=14202

Upozornění

GetHostByAddress has been deprecated. Use GetHostEntry instead.

Upozornění

GetHostByAddress is obsoleted for this type, please use GetHostEntry instead. http://go.microsoft.com/fwlink/?linkid=14202

Vytvoří IPHostEntry instanci z IP adresy.

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

[System.Obsolete("GetHostByAddress is obsoleted for this type, please use GetHostEntry instead. https://go.microsoft.com/fwlink/?linkid=14202")]
public static System.Net.IPHostEntry GetHostByAddress(string address);

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

[System.Obsolete("GetHostByAddress is obsoleted for this type, please use GetHostEntry instead. http://go.microsoft.com/fwlink/?linkid=14202")]
public static System.Net.IPHostEntry GetHostByAddress(string address);

public static System.Net.IPHostEntry GetHostByAddress(string address);

[<System.Obsolete("GetHostByAddress is obsoleted for this type, please use GetHostEntry instead. https://go.microsoft.com/fwlink/?linkid=14202")>]
static member GetHostByAddress : string -> System.Net.IPHostEntry

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

[<System.Obsolete("GetHostByAddress is obsoleted for this type, please use GetHostEntry instead. http://go.microsoft.com/fwlink/?linkid=14202")>]
static member GetHostByAddress : string -> System.Net.IPHostEntry

static member GetHostByAddress : string -> System.Net.IPHostEntry

Public Shared Function GetHostByAddress (address As String) As IPHostEntry

Parametry

address: String

IP adresa.

Návraty

IPHostEntry

Instance IPHostEntry .

Atributy: ObsoleteAttribute

Výjimky

ArgumentNullException

address je null.

SocketException

Při řešení chyby dojde k addresschybě .

FormatException

address není platná IP adresa.

Poznámky

Poznámka

Tento člen generuje informace o trasování, když povolíte trasování sítě ve vaší aplikaci. Další informace najdete v tématu Trasování sítě v rozhraní .NET Framework.

Platí pro

.NET 9 a další verze

Produkt	Verze (zastaralé)
.NET	(Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9)
.NET Framework	1.1 (2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1)
.NET Standard	(2.0, 2.1)

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Dns.GetHostByAddress Metoda

Definice

Přetížení

GetHostByAddress(IPAddress)

Parametry

Návraty

Výjimky

Příklady

Poznámky

Platí pro

GetHostByAddress(String)

Parametry

Návraty

Výjimky

Poznámky

Platí pro

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