IPAddress 類別

參考

定義

命名空間:: System.Net

組件:: System.dll, System.Net.Primitives.dll

組件:: System.Net.Primitives.dll

組件:: System.dll

組件:: netstandard.dll

來源:: IPAddress.cs

來源:: IPAddress.cs

來源:: IPAddress.cs

重要

部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。

提供網際網路通訊協定 (IP) 位址。

public ref class IPAddress

public ref class IPAddress : IParsable<System::Net::IPAddress ^>, ISpanFormattable, ISpanParsable<System::Net::IPAddress ^>, IUtf8SpanFormattable

public class IPAddress

public class IPAddress : IParsable<System.Net.IPAddress>, ISpanFormattable, ISpanParsable<System.Net.IPAddress>, IUtf8SpanFormattable

[System.Serializable]
public class IPAddress

type IPAddress = class

type IPAddress = class
    interface ISpanFormattable
    interface IFormattable
    interface ISpanParsable<IPAddress>
    interface IParsable<IPAddress>
    interface IUtf8SpanFormattable

[<System.Serializable>]
type IPAddress = class

Public Class IPAddress

Public Class IPAddress
Implements IParsable(Of IPAddress), ISpanFormattable, ISpanParsable(Of IPAddress), IUtf8SpanFormattable

繼承: Object
IPAddress

屬性: SerializableAttribute

實作: IFormattable IParsable<IPAddress> IParsable<TSelf> ISpanFormattable ISpanParsable<IPAddress> IUtf8SpanFormattable

範例

下列程式代碼範例示範如何查詢伺服器以取得系列位址及其支援的IP位址。

// 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

備註

類別 IPAddress 包含IP網路上電腦的位址。

建構函式

IPAddress(Byte[])	使用指定為 IPAddress 陣列的位址，初始化 Byte 類別的新執行個體。
IPAddress(Byte[], Int64)	使用指定為 IPAddress 陣列且具有指定之範圍識別項的位址，初始化 Byte 類別的新執行個體。
IPAddress(Int64)	使用指定為 IPAddress 的位址，初始化 Int64 類別的新執行個體。
IPAddress(ReadOnlySpan<Byte>)	使用指定為位元組範圍的位址，初始化 IPAddress 類別的新執行個體。
IPAddress(ReadOnlySpan<Byte>, Int64)	使用指定為位元組範圍且具有指定範圍識別碼的位址，初始化 IPAddress 類別的新執行個體。

欄位

Any	提供指示伺服器必須在所有網路介面上接聽用戶端活動的 IP 位址。此欄位為唯讀。
Broadcast	提供 IP 廣播位址。此欄位為唯讀。
IPv6Any	Bind(EndPoint) 方法使用 IPv6Any 欄位來表示 Socket 必須在所有網路介面上接聽用戶端活動。
IPv6Loopback	提供 IP 回送位址。這個屬性是唯讀的。
IPv6None	提供 IP 位址，表示不可使用網路介面。這個屬性是唯讀的。
Loopback	提供 IP 回送位址。此欄位為唯讀。
None	提供 IP 位址，表示不可使用網路介面。此欄位為唯讀。

屬性

Address	已淘汰. 已淘汰. 已淘汰. 已淘汰. 已淘汰. 網際網路通訊協定 (IP) 位址。
AddressFamily	取得 IP 位址的位址家族。
IsIPv4MappedToIPv6	取得 IP 位址是否為對應 IPv4 的 IPv6 位址。
IsIPv6LinkLocal	取得位址是否為 IPv6 連結本機位址的資訊。
IsIPv6Multicast	取得位址是否為 IPv6 多點傳送全域位址的資訊。
IsIPv6SiteLocal	取得位址是否為 IPv6 站台本機位址的資訊。
IsIPv6Teredo	取得值，這個值指出位址是否為 IPv6 Teredo 位址。
IsIPv6UniqueLocal	取得位址是否為 IPv6 唯一本機位址。
ScopeId	取得或設定 IPv6 位址範圍識別項。

方法

Equals(Object)	比較兩個 IP 位址。
GetAddressBytes()	以網路順序提供作為位元組陣組的複本 IPAddress 。
GetHashCode()	傳回 IP 位址的雜湊值 (Hash Value)。
GetType()	取得目前執行個體的 Type。 (繼承來源 Object)
HostToNetworkOrder(Int16)	將短整數 (Short) 值從主機位元組順序轉換為網路位元組順序。
HostToNetworkOrder(Int32)	將整數值從主機位元組順序轉換為網路位元組順序。
HostToNetworkOrder(Int64)	將長整數 (Long) 值從主機位元組順序轉換為網路位元組順序。
IsLoopback(IPAddress)	指示指定的 IP 位址是否為回送位址。
MapToIPv4()	將 IPAddress 物件對應至 IPv4 位址。
MapToIPv6()	將 IPAddress 物件對應至 IPv6 位址。
MemberwiseClone()	建立目前 Object 的淺層複製。 (繼承來源 Object)
NetworkToHostOrder(Int16)	將短整數值從網路位元組順序轉換為主機位元組順序。
NetworkToHostOrder(Int32)	將整數值從網路位元組順序轉換為主機位元組順序。
NetworkToHostOrder(Int64)	將長整數值從網路位元組順序轉換為主機位元組順序。
Parse(ReadOnlySpan<Char>)	將以字元範圍表示的 IP 位址轉換為 IPAddress 執行個體。
Parse(String)	將 IP 位址字串轉換為 IPAddress 執行個體。
ToString()	將網際網路位址轉換為其標準標記法。
TryFormat(Span<Byte>, Int32)	嘗試將目前的 IP 位址格式化成提供的範圍。
TryFormat(Span<Char>, Int32)	嘗試將目前的 IP 位址格式化成提供的範圍。
TryParse(ReadOnlySpan<Char>, IPAddress)	嘗試將字元範圍剖析成值。
TryParse(String, IPAddress)	判斷字串是否為有效的 IP 位址。
TryWriteBytes(Span<Byte>, Int32)	嘗試以網路順序將目前的IP位址寫入位元組範圍。

明確介面實作

IFormattable.ToString(String, IFormatProvider)	使用指定的格式，格式化目前執行個體的值。
IParsable<IPAddress>.Parse(String, IFormatProvider)	將字串剖析成值。
IParsable<IPAddress>.TryParse(String, IFormatProvider, IPAddress)	試著將字串剖析為 IPAddress。
ISpanFormattable.TryFormat(Span<Char>, Int32, ReadOnlySpan<Char>, IFormatProvider)	嘗試將目前實例的值格式化為提供的字元範圍。
ISpanParsable<IPAddress>.Parse(ReadOnlySpan<Char>, IFormatProvider)	將字元範圍剖析為值。
ISpanParsable<IPAddress>.TryParse(ReadOnlySpan<Char>, IFormatProvider, IPAddress)	嘗試將字元範圍剖析成值。
IUtf8SpanFormattable.TryFormat(Span<Byte>, Int32, ReadOnlySpan<Char>, IFormatProvider)	嘗試將目前實例的值格式化為UTF-8到提供的位元組範圍。

適用於

共用方式為

IPAddress 類別

定義

範例

備註

建構函式

欄位

屬性

方法

明確介面實作

適用於

其他資源