Java InetSocketAddress 類說明

1、InetSocketAddress

final Socket socket = new Socket();//使用不可變對象，用於鏈接
SocketAddress address = new InetSocketAddress("www.fortify.net", 443);
try {
    socket.connect(address);
} catch (IOException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
}// 鏈接遠程主機
Thread reader = new Thread() {
    @Override
    public void run() {
        try {
            byte[] buffer = new byte[512];
            InputStream stream = socket.getInputStream();
            socket.getInputStream().read(buffer);
        } catch (Exception ex) {
 
        }
    }
};
reader.start();

JDK API Class InetSocketAddress

• java.lang.Object

• java.net.SocketAddress

• java.net.InetSocketAddress //是Socketaddress 的子類

• public class InetSocketAddressextends SocketAddress

This class implements an IP Socket Address (IP address + port number) It can also be a pair (hostname + port number), in which case an attempt will be made to resolve the hostname.

• 這個類 inetAddress是Java對IP地址的封裝，表明互聯網協議（IP）地址；

• InetAddress對象的獲取只能經過靜態方法，好比根據主機名獲取主機的ip地址封裝對象：

• If resolution fails then the address is said to be unresolved but can still be used on some circumstances like connecting through a proxy.

  It provides an immutable object used by sockets for binding, connecting, or as returned values.

  The wildcard is a special local IP address. It usually means "any" and can only be used for bind operations.

• Since:

• 1.4

• See Also:

• Socket, ServerSocket, Serialized Form

• All Implemented Interfaces:

• Serializable

2、InetAddress

InetAddress是Java對IP地址的封裝，表明互聯網協議（IP）地址；

InetAddress對象的獲取只能經過靜態方法，好比根據主機名獲取主機的ip地址封裝對象；

InetAddress add=InetAddress.getByName("BOPZKQZ9SSY5ECY");

JDK API Class InetSocketAddress

Class InetAddress

• java.lang.Object

• java.net.InetAddress

• public class InetAddressextends Objectimplements Serializable

This class represents an Internet Protocol (IP) address.

• An IP address is either a 32-bit or 128-bit unsigned number used by IP, a lower-level protocol on which protocols like UDP and TCP are built. The IP address architecture is defined by RFC 790: Assigned Numbers, RFC 1918: Address Allocation for Private Internets, RFC 2365: Administratively Scoped IP Multicast, and RFC 2373: IP Version 6 Addressing Architecture. An instance of an InetAddress consists of an IP address and possibly its corresponding host name (depending on whether it is constructed with a host name or whether it has already done reverse host name resolution).

• Direct Known Subclasses:

• Inet4Address, Inet6Address

• All Implemented Interfaces:

• Serializable