IPAddress Třída

Definice

Poskytuje adresu Internet Protocol (IP).Provides an Internet Protocol (IP) address.

public ref class IPAddress
public class IPAddress
[System.Serializable]
public class IPAddress
type IPAddress = class
[<System.Serializable>]
type IPAddress = class
Public Class IPAddress
Dědičnost
IPAddress
Atributy

Příklady

Následující příklad kódu ukazuje, jak zadat dotaz na server a získat tak adresy rodiny a IP adresy, které podporuje.The following code example shows how to query a server to obtain the family addresses and the IP addresses it supports.

// This program shows how to use the IPAddress class to obtain a server 
// IP addressess and related information.
#using <System.dll>

using namespace System;
using namespace System::Net;
using namespace System::Net::Sockets;
using namespace System::Text::RegularExpressions;

/**
* The IPAddresses method obtains the selected server IP address information.
* It then displays the type of address family supported by the server and its 
* IP address in standard and byte format.
**/
void IPAddresses( String^ server )
{
   try
   {
      System::Text::ASCIIEncoding^ ASCII = gcnew System::Text::ASCIIEncoding;
      
      // Get server related information.
      IPHostEntry^ heserver = Dns::GetHostEntry( server );
      
      // Loop on the AddressList
      System::Collections::IEnumerator^ myEnum = heserver->AddressList->GetEnumerator();
      while ( myEnum->MoveNext() )
      {
         IPAddress^ curAdd = safe_cast<IPAddress^>(myEnum->Current);
         
         // Display the type of address family supported by the server. If the
         // server is IPv6-enabled this value is: InterNetworkV6. If the server
         // is also IPv4-enabled there will be an additional value of InterNetwork.
         Console::WriteLine( "AddressFamily: {0}", curAdd->AddressFamily );
         
         // Display the ScopeId property in case of IPV6 addresses.
         if ( curAdd->AddressFamily.ToString() == ProtocolFamily::InterNetworkV6.ToString() )
                  Console::WriteLine( "Scope Id: {0}", curAdd->ScopeId );

         // Display the server IP address in the standard format. In 
         // IPv4 the format will be dotted-quad notation, in IPv6 it will be
         // in in colon-hexadecimal notation.
         Console::WriteLine( "Address: {0}", curAdd );
         
         // Display the server IP address in byte format.
         Console::Write( "AddressBytes: " );
         
         array<Byte>^bytes = curAdd->GetAddressBytes();
         for ( int i = 0; i < bytes->Length; i++ )
         {
            Console::Write( bytes[ i ] );

         }

         Console::WriteLine( "\r\n" );
      }
   }
   catch ( Exception^ e ) 
   {
      Console::WriteLine( "[DoResolve] Exception: {0}", e );
   }

}


// This IPAddressAdditionalInfo displays additional server address information.
void IPAddressAdditionalInfo()
{
   try
   {
      // Display the flags that show if the server supports IPv4 or IPv6
      // address schemas.
      Console::WriteLine( "\r\nSupportsIPv4: {0}", Socket::SupportsIPv4 );
      Console::WriteLine( "SupportsIPv6: {0}", Socket::SupportsIPv6 );
      if ( Socket::SupportsIPv6 )
      {
         // Display the server Any address. This IP address indicates that the server 
         // should listen for client activity on all network interfaces. 
         Console::WriteLine( "\r\nIPv6Any: {0}", IPAddress::IPv6Any );

         // Display the server loopback address. 
         Console::WriteLine( "IPv6Loopback: {0}", IPAddress::IPv6Loopback );

         // Used during autoconfiguration first phase.
         Console::WriteLine( "IPv6None: {0}", IPAddress::IPv6None );
         Console::WriteLine( "IsLoopback(IPv6Loopback): {0}", IPAddress::IsLoopback( IPAddress::IPv6Loopback ) );
      }
      Console::WriteLine( "IsLoopback(Loopback): {0}", IPAddress::IsLoopback( IPAddress::Loopback ) );
   }
   catch ( Exception^ e ) 
   {
      Console::WriteLine( "[IPAddresses] Exception: {0}", e );
   }

}

int main()
{
   array<String^>^args = Environment::GetCommandLineArgs();
   String^ server = nullptr;

   // Define a regular expression to parse user's input.
   // This is a security check. It allows only
   // alphanumeric input string between 2 to 40 character long.
   Regex^ rex = gcnew Regex( "^[a-zA-Z]\\w{1,39}$" );
   if ( args->Length < 2 )
   {
      // If no server name is passed as an argument to this program, use the current 
      // server name as default.
      server = Dns::GetHostName();
      Console::WriteLine( "Using current host: {0}", server );
   }
   else
   {
      server = args[ 1 ];
      if (  !(rex->Match(server))->Success )
      {
         Console::WriteLine( "Input string format not allowed." );
         return  -1;
      }
   }

   // Get the list of the addresses associated with the requested server.
   IPAddresses( server );

   // Get additional address information.
   IPAddressAdditionalInfo();
}

// This program shows how to use the IPAddress class to obtain a server
// IP addressess and related information.

using System;
using System.Net;
using System.Net.Sockets;
using System.Text.RegularExpressions;

namespace Mssc.Services.ConnectionManagement
{

  class TestIPAddress
  {

    /**
      * The IPAddresses method obtains the selected server IP address information.
      * It then displays the type of address family supported by the server and its
      * IP address in standard and byte format.
      **/
    private static void IPAddresses(string server)
    {
      try
      {
        System.Text.ASCIIEncoding ASCII = new System.Text.ASCIIEncoding();

        // Get server related information.
        IPHostEntry heserver = Dns.GetHostEntry(server);

        // Loop on the AddressList
        foreach (IPAddress curAdd in heserver.AddressList)
        {


          // Display the type of address family supported by the server. If the
          // server is IPv6-enabled this value is: InterNetworkV6. If the server
          // is also IPv4-enabled there will be an additional value of InterNetwork.
          Console.WriteLine("AddressFamily: " + curAdd.AddressFamily.ToString());

          // Display the ScopeId property in case of IPV6 addresses.
          if(curAdd.AddressFamily.ToString() == ProtocolFamily.InterNetworkV6.ToString())
            Console.WriteLine("Scope Id: " + curAdd.ScopeId.ToString());


          // Display the server IP address in the standard format. In
          // IPv4 the format will be dotted-quad notation, in IPv6 it will be
          // in in colon-hexadecimal notation.
          Console.WriteLine("Address: " + curAdd.ToString());

          // Display the server IP address in byte format.
          Console.Write("AddressBytes: ");

          Byte[] bytes = curAdd.GetAddressBytes();
          for (int i = 0; i < bytes.Length; i++)
          {
            Console.Write(bytes[i]);
          }

          Console.WriteLine("\r\n");
        }
      }
      catch (Exception e)
      {
        Console.WriteLine("[DoResolve] Exception: " + e.ToString());
      }
    }

    // This IPAddressAdditionalInfo displays additional server address information.
    private static void IPAddressAdditionalInfo()
    {
      try
      {
        // Display the flags that show if the server supports IPv4 or IPv6
        // address schemas.
        Console.WriteLine("\r\nSupportsIPv4: " + Socket.SupportsIPv4);
        Console.WriteLine("SupportsIPv6: " + Socket.SupportsIPv6);

        if (Socket.SupportsIPv6)
        {
          // Display the server Any address. This IP address indicates that the server
          // should listen for client activity on all network interfaces.
          Console.WriteLine("\r\nIPv6Any: " + IPAddress.IPv6Any.ToString());

          // Display the server loopback address.
          Console.WriteLine("IPv6Loopback: " + IPAddress.IPv6Loopback.ToString());

          // Used during autoconfiguration first phase.
          Console.WriteLine("IPv6None: " + IPAddress.IPv6None.ToString());

          Console.WriteLine("IsLoopback(IPv6Loopback): " + IPAddress.IsLoopback(IPAddress.IPv6Loopback));
        }
        Console.WriteLine("IsLoopback(Loopback): " + IPAddress.IsLoopback(IPAddress.Loopback));
      }
      catch (Exception e)
      {
        Console.WriteLine("[IPAddresses] Exception: " + e.ToString());
      }
    }

    public static void Main(string[] args)
    {
      string server = null;

      // Define a regular expression to parse user's input.
      // This is a security check. It allows only
      // alphanumeric input string between 2 to 40 character long.
      Regex rex = new Regex(@"^[a-zA-Z]\w{1,39}$");

      if (args.Length < 1)
      {
        // If no server name is passed as an argument to this program, use the current
        // server name as default.
        server = Dns.GetHostName();
        Console.WriteLine("Using current host: " + server);
      }
      else
      {
        server = args[0];
        if (!(rex.Match(server)).Success)
        {
          Console.WriteLine("Input string format not allowed.");
          return;
        }
      }

      // Get the list of the addresses associated with the requested server.
      IPAddresses(server);

      // Get additional address information.
      IPAddressAdditionalInfo();
    }
  }
}
' This program shows how to use the IPAddress class to obtain a server 
' IP addressess and related information.
Imports System.Net
Imports System.Net.Sockets
Imports System.Text.RegularExpressions

Namespace Mssc.Services.ConnectionManagement
  Module M_TestIPAddress

    Class TestIPAddress

      'The IPAddresses method obtains the selected server IP address information.
      'It then displays the type of address family supported by the server and 
      'its IP address in standard and byte format.
      Private Shared Sub IPAddresses(ByVal server As String)
        Try
          Dim ASCII As New System.Text.ASCIIEncoding()

          ' Get server related information.
          Dim heserver As IPHostEntry = Dns.Resolve(server)

          ' Loop on the AddressList
          Dim curAdd As IPAddress
          For Each curAdd In heserver.AddressList

            ' Display the type of address family supported by the server. If the
            ' server is IPv6-enabled this value is: InterNetworkV6. If the server
            ' is also IPv4-enabled there will be an additional value of InterNetwork.
            Console.WriteLine(("AddressFamily: " + curAdd.AddressFamily.ToString()))

            ' Display the ScopeId property in case of IPV6 addresses.
            If curAdd.AddressFamily.ToString() = ProtocolFamily.InterNetworkV6.ToString() Then
              Console.WriteLine(("Scope Id: " + curAdd.ScopeId.ToString()))
            End If

            ' Display the server IP address in the standard format. In 
            ' IPv4 the format will be dotted-quad notation, in IPv6 it will be
            ' in in colon-hexadecimal notation.
            Console.WriteLine(("Address: " + curAdd.ToString()))

            ' Display the server IP address in byte format.
            Console.Write("AddressBytes: ")



            Dim bytes As [Byte]() = curAdd.GetAddressBytes()
            Dim i As Integer
            For i = 0 To bytes.Length - 1
              Console.Write(bytes(i))
            Next i
            Console.WriteLine(ControlChars.Cr + ControlChars.Lf)
          Next curAdd 

        Catch e As Exception
          Console.WriteLine(("[DoResolve] Exception: " + e.ToString()))
        End Try
      End Sub


      ' This IPAddressAdditionalInfo displays additional server address information.
      Private Shared Sub IPAddressAdditionalInfo()
        Try
          ' Display the flags that show if the server supports IPv4 or IPv6
          ' address schemas.
          Console.WriteLine((ControlChars.Cr + ControlChars.Lf + "SupportsIPv4: " + Socket.SupportsIPv4.ToString()))
          Console.WriteLine(("SupportsIPv6: " + Socket.SupportsIPv6.ToString()))

          If Socket.SupportsIPv6 Then
            ' Display the server Any address. This IP address indicates that the server 
            ' should listen for client activity on all network interfaces. 
            Console.WriteLine((ControlChars.Cr + ControlChars.Lf + "IPv6Any: " + IPAddress.IPv6Any.ToString()))

            ' Display the server loopback address. 
            Console.WriteLine(("IPv6Loopback: " + IPAddress.IPv6Loopback.ToString()))

            ' Used during autoconfiguration first phase.
            Console.WriteLine(("IPv6None: " + IPAddress.IPv6None.ToString()))

            Console.WriteLine(("IsLoopback(IPv6Loopback): " + IPAddress.IsLoopback(IPAddress.IPv6Loopback).ToString()))
          End If
          Console.WriteLine(("IsLoopback(Loopback): " + IPAddress.IsLoopback(IPAddress.Loopback).ToString()))
        Catch e As Exception
          Console.WriteLine(("[IPAddresses] Exception: " + e.ToString()))
        End Try
      End Sub

      Public Shared Sub Main(ByVal args() As String)
        Dim server As String = Nothing

        ' Define a regular expression to parse user's input.
        ' This is a security check. It allows only
        ' alphanumeric input string between 2 to 40 character long.
        Dim rex As New Regex("^[a-zA-Z]\w{1,39}$")

        If args.Length < 1 Then
          ' If no server name is passed as an argument to this program, use the current 
          ' server name as default.
          server = Dns.GetHostName()
          Console.WriteLine(("Using current host: " + server))
        Else
          server = args(0)
          If Not rex.Match(server).Success Then
            Console.WriteLine("Input string format not allowed.")
            Return
          End If
        End If

        ' Get the list of the addresses associated with the requested server.
        IPAddresses(server)

        ' Get additional address information.
        IPAddressAdditionalInfo()
      End Sub
    End Class
  End Module
End Namespace

Poznámky

IPAddressTřída obsahuje adresu počítače v síti IP.The IPAddress class contains the address of a computer on an IP network.

Konstruktory

IPAddress(Byte[])

Inicializuje novou instanci IPAddress třídy s adresou zadanou jako Byte pole.Initializes a new instance of the IPAddress class with the address specified as a Byte array.

IPAddress(Byte[], Int64)

Inicializuje novou instanci IPAddress třídy s adresou zadanou jako Byte pole a zadaným identifikátorem oboru.Initializes a new instance of the IPAddress class with the address specified as a Byte array and the specified scope identifier.

IPAddress(Int64)

Inicializuje novou instanci IPAddress třídy s adresou zadanou jako Int64 .Initializes a new instance of the IPAddress class with the address specified as an Int64.

IPAddress(ReadOnlySpan<Byte>)

Inicializuje novou instanci IPAddress třídy s adresou zadanou jako bajtový rozsah.Initializes a new instance of the IPAddress class with the address specified as a byte span.

IPAddress(ReadOnlySpan<Byte>, Int64)

Inicializuje novou instanci IPAddress třídy s adresou zadanou jako bajtový rozsah a zadaným identifikátorem oboru.Initializes a new instance of the IPAddress class with the address specified as a byte span and the specified scope identifier.

Pole

Any

Poskytuje IP adresu, která indikuje, že server musí naslouchat aktivitě klienta na všech síťových rozhraních.Provides an IP address that indicates that the server must listen for client activity on all network interfaces. Toto pole je jen ke čtení.This field is read-only.

Broadcast

Poskytuje adresu všesměrového vysílání IP.Provides the IP broadcast address. Toto pole je jen ke čtení.This field is read-only.

IPv6Any

Bind(EndPoint)Metoda používá IPv6Any pole k označení toho, že Socket musí naslouchat aktivitě klienta na všech síťových rozhraních.The Bind(EndPoint) method uses the IPv6Any field to indicate that a Socket must listen for client activity on all network interfaces.

IPv6Loopback

Poskytuje adresu zpětné smyčky IP.Provides the IP loopback address. Tato vlastnost je jen ke čtení.This property is read-only.

IPv6None

Poskytuje IP adresu, která indikuje, že se nemá používat žádné síťové rozhraní.Provides an IP address that indicates that no network interface should be used. Tato vlastnost je jen ke čtení.This property is read-only.

Loopback

Poskytuje adresu zpětné smyčky IP.Provides the IP loopback address. Toto pole je jen ke čtení.This field is read-only.

None

Poskytuje IP adresu, která indikuje, že se nemá používat žádné síťové rozhraní.Provides an IP address that indicates that no network interface should be used. Toto pole je jen ke čtení.This field is read-only.

Vlastnosti

Address
Zastaralé.
Zastaralé.
Zastaralé.

Adresa Internet Protocol (IP).An Internet Protocol (IP) address.

AddressFamily

Načte rodinu adres IP adresy.Gets the address family of the IP address.

IsIPv4MappedToIPv6

Zjistí, zda je IP adresa IPv6 mapovaná na adresu IPv4.Gets whether the IP address is an IPv4-mapped IPv6 address.

IsIPv6LinkLocal

Získá, zda je adresa místní adresa propojení IPv6.Gets whether the address is an IPv6 link local address.

IsIPv6Multicast

Získá, zda je adresa globální adresou vícesměrového vysílání IPv6.Gets whether the address is an IPv6 multicast global address.

IsIPv6SiteLocal

Získá, zda je adresa místní adresa IPv6 serveru.Gets whether the address is an IPv6 site local address.

IsIPv6Teredo

Získá, zda je adresa adresa IPv6 služby Teredo.Gets whether the address is an IPv6 Teredo address.

ScopeId

Získá nebo nastaví identifikátor oboru IPv6 adres.Gets or sets the IPv6 address scope identifier.

Metody

Equals(Object)

Porovná dvě IP adresy.Compares two IP addresses.

GetAddressBytes()

Poskytuje kopii IPAddress jako pole bajtů.Provides a copy of the IPAddress as an array of bytes.

GetHashCode()

Vrátí hodnotu hash pro IP adresu.Returns a hash value for an IP address.

GetType()

Získá Type aktuální instanci.Gets the Type of the current instance.

(Zděděno od Object)
HostToNetworkOrder(Int16)

Převede krátkou hodnotu z pořadí bajtů hostitele na pořadí bajtů sítě.Converts a short value from host byte order to network byte order.

HostToNetworkOrder(Int32)

Převede celočíselnou hodnotu z pořadí bajtů hostitele na pořadí bajtů sítě.Converts an integer value from host byte order to network byte order.

HostToNetworkOrder(Int64)

Převede dlouhou hodnotu z pořadí bajtů hostitele na pořadí bajtů sítě.Converts a long value from host byte order to network byte order.

IsLoopback(IPAddress)

Označuje, zda je zadaná IP adresa adresou zpětné smyčky.Indicates whether the specified IP address is the loopback address.

MapToIPv4()

Mapuje IPAddress objekt na adresu IPv4.Maps the IPAddress object to an IPv4 address.

MapToIPv6()

Mapuje IPAddress objekt na adresu IPv6.Maps the IPAddress object to an IPv6 address.

MemberwiseClone()

Vytvoří kopii aktuálního seznamu Object .Creates a shallow copy of the current Object.

(Zděděno od Object)
NetworkToHostOrder(Int16)

Převede krátkou hodnotu z pořadí bajtů sítě na pořadí bajtů hostitele.Converts a short value from network byte order to host byte order.

NetworkToHostOrder(Int32)

Převede celočíselnou hodnotu z pořadí bajtů sítě na pořadí bajtů hostitele.Converts an integer value from network byte order to host byte order.

NetworkToHostOrder(Int64)

Převede dlouhou hodnotu ze síťového bajtového pořadí na pořadí bajtů hostitele.Converts a long value from network byte order to host byte order.

Parse(ReadOnlySpan<Char>)

Převede IP adresu představovanou jako znaková rozpětí na IPAddress instanci.Converts an IP address represented as a character span to an IPAddress instance.

Parse(String)

Převede řetězec IP adresy na IPAddress instanci.Converts an IP address string to an IPAddress instance.

ToString()

Převede internetovou adresu na standardní zápis.Converts an Internet address to its standard notation.

TryFormat(Span<Char>, Int32)

Pokusí se naformátovat aktuální IP adresu v zadaném rozsahu.Tries to format the current IP address into the provided span.

TryParse(ReadOnlySpan<Char>, IPAddress)

Určuje, zda zadané bajtové rozpětí představuje platnou IP adresu.Determines whether the specified byte span represents a valid IP address.

TryParse(String, IPAddress)

Určuje, zda je řetězec platnou IP adresou.Determines whether a string is a valid IP address.

TryWriteBytes(Span<Byte>, Int32)

Pokusí se zapsat aktuální IP adresu do rozsahu bajtů.Tries to write the current IP address into a span of bytes.

Platí pro