Java：将int转换为InetAddress [英] Java: convert int to InetAddress

问题描述

我有 int ，其中包含网络字节顺序的IP地址，我想将其转换为 InetAddress 对象。我看到有一个 InetAddress 构造函数，它接受 byte [] ，是否需要转换 int 首先到 byte [] ，还是有另一种方式？

I have an int which contains an IP address in network byte order, which I would like to convert to an InetAddress object. I see that there is an InetAddress constructor that takes a byte[], is it necessary to convert the int to a byte[] first, or is there another way?

推荐答案

这应该有效：

int ipAddress = ....
byte[] bytes = BigInteger.valueOf(ipAddress).toByteArray();
InetAddress address = InetAddress.getByAddress(bytes);

您可能必须交换字节数组的顺序，我无法弄清楚数组是否存在将以正确的顺序生成。

You might have to swap the order of the byte array, I can't figure out if the array will be generated in the correct order.

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