返回一个反转IP地址

返回一个反转IP地址

本文介绍了getHostAddress()返回一个反转IP地址的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我试图用WifiManager和WifiInfo类获取我的手机的IP地址。

I'm trying to get my cell phone ip address by using WifiManager and WifiInfo classes.

它返回正确的IP地址逆转。

It returns correct ip address reversed.

public String getWifiIpAddress() {
    WifiManager wm = (WifiManager) getSystemService(WIFI_SERVICE);
    WifiInfo wi = wm.getConnectionInfo();

    byte[] ipAddress = BigInteger.valueOf(wi.getIpAddress()).toByteArray();
    try {
        InetAddress myAddr = InetAddress.getByAddress(ipAddress);
        String hostAddr = myAddr.getHostAddress();
        return hostAddr;
    } catch (UnknownHostException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    return "";
}

结果:73.0.168.192

result : 73.0.168.192

推荐答案

好吧,我刚刚看到您的地址是相反的! :)

Ok, I just saw that your address is reversed! :)

它被称为大/小端的问题,阅读更多有关这是必须 - 到知道所有的程序员,在不同操作系统上专门做应用整合和迁移的时候。

It is referred as big/little endian issue, read more about Endianness which is must-to-know for all programmers, specially when doing applications integrations and migrations on different Operating Systems.

流汗从WiFi管理器的连接信息后,添加这一点。

Add this after gettting the Connection Info from the Wifi manager.

int ipAddress = wi.getIpAddress();

ipAddress = (ByteOrder.nativeOrder().equals(ByteOrder.LITTLE_ENDIAN)) ?
                Integer.reverseBytes(ipAddress) : ipAddress;

然后继续你的code。与toByteArray和getHostAddress等。

Then continue your code with toByteArray and getHostAddress etc.

这篇关于getHostAddress()返回一个反转IP地址的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!

07-31 22:05