如何将serversocket绑定到特定的IP？

问题描述

如果我有字符串表示IP地址（IPv4或IPv6），我该如何创建 ServerSocket 和绑定到这个IP而不关心IP是否传入，是IPv4还是IPv6？

我看到有一个构造函数： ServerSocket（int port，int backlog，InetAddress bindAddr）但的InetAddress 似乎没有提供任何构造函数和它的子类必须特定于IPv4和IPv6的名字。点击
所以怎么可以将套接字绑定到IP？

If I have a String representing an IP address (IPv4 or IPv6) how can I create a ServerSocket and bind to this IP without caring if the IP passed in, is IPv4 or IPv6?
I see that there is a constructor:ServerSocket(int port, int backlog, InetAddress bindAddr) but InetAddress does not seem to offer any constructors and its subclasses have names specific to IPv4 and IPv6.
So how can I bind the socket to the IP?

推荐答案

可以使用工厂方法。它将找出要使用的子类。例如：

You can use the factory method INetAddress.getByName. It'll figure out which subclass to use. For example:

InetAddress addr = InetAddress.getByName("127.0.0.1");
// or
InetAddress addr = InetAddress.getByName("::1");

// and now you can pass it to your socket-constructor
ServerSocket sock = new ServerSocket(1234, 50, addr);

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