Android开发准确获取手机IP地址的两种方式_F11 - 专业站长和开发者的学习网站

最近看了好多网上获取IP地址的例子，发现好多都不完全准确，这里我写一下获取ip地址的两种方式。

比如微信支付，后台在做接口的时候，要求App端传入IP地址，我们需要判断是网络环境，WI-FI还是3G，所以需要获取这两种环境的ip地址。

第一步：首先是判断网络环境：

String ip;
ConnectivityManager conMann = (ConnectivityManager)
                this.getSystemService(Context.CONNECTIVITY_SERVICE);
            NetworkInfo mobileNetworkInfo = conMann.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);
            NetworkInfo wifiNetworkInfo = conMann.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
        
        if (mobileNetworkInfo.isConnected()) {
            ip = getLocalIpAddress();  
            System.out.println("本地ip-----"+ip);
        }else if(wifiNetworkInfo.isConnected())
        {
            WifiManager wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
            WifiInfo wifiInfo = wifiManager.getConnectionInfo();   
          int ipAddress = wifiInfo.getIpAddress(); 
          ip = intToIp(ipAddress);
          System.out.println("wifi_ip地址为------"+ip);
        }

如果连接的是移动网络，第二步，获取本地ip地址：getLocalIpAddress();这样获取的是ipv4格式的ip地址。

public String getLocalIpAddress() {
    try {
      String ipv4;
      ArrayList<NetworkInterface> nilist = Collections.list(NetworkInterface.getNetworkInterfaces());
      for (NetworkInterface ni: nilist) 
      {
        ArrayList<InetAddress> ialist = Collections.list(ni.getInetAddresses());
        for (InetAddress address: ialist){
          if (!address.isLoopbackAddress() && InetAddressUtils.isIPv4Address(ipv4=address.getHostAddress()))  
          { 
            return ipv4;
          }
        }
  
      }
  
    } catch (SocketException ex) {
      Log.e("localip", ex.toString());
    }
    return null;
  }

如果连接的是WI-FI网络，第三步，获取WI-FI ip地址：intToIp(ipAddress);

public static String intToIp(int ipInt) {
        StringBuilder sb = new StringBuilder();
        sb.append(ipInt & 0xFF).append(".");
        sb.append((ipInt >> 8) & 0xFF).append(".");
        sb.append((ipInt >> 16) & 0xFF).append("."); 
        sb.append((ipInt >> 24) & 0xFF);
        return sb.toString();
      }

网上的很多代码获取的是ipv6的本地ip，在微信支付里这种ip地址无法调起微信支付，附代码：

private String getlocalIp() {
    String ip;
    
        try {
            for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements();) { 
                NetworkInterface intf = en.nextElement();
                for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements();) {
                    InetAddress inetAddress = enumIpAddr.nextElement();
                    if (!inetAddress.isLoopbackAddress()&&!inetAddress.isLinkLocalAddress()) {
//                  ip=inetAddress.getHostAddress().toString();
                        System.out.println("ip=========="+inetAddress.getHostAddress().toString());
                        return inetAddress.getHostAddress().toString();
                     
                    }
                }
            }
        } catch (SocketException ex) {
            Log.e("WifiPreference IpAddress", ex.toString());        
    }
    return null;
}