如何在java中获取wifi网络接口名称

WifiManager wifiManager = (WifiManager) this.getSystemService(WIFI_SERVICE);
WifiInfo wifiInfo = wifiManager.getConnectionInfo();
System.out.println(wifiInfo.getSSID());

<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />

Enumeration<NetworkInterface> networkInterfaces = NetworkInterface.getNetworkInterfaces();
while (networkInterfaces.hasMoreElements())
{
    NetworkInterface networkInterface = (NetworkInterface) networkInterfaces.nextElement();
    System.out.println(networkInterface.getDisplayName());
}

Enumeration<NetworkInterface> networkInterfaces = NetworkInterface.getNetworkInterfaces();
while (networkInterfaces.hasMoreElements())
{
    NetworkInterface networkInterface = (NetworkInterface) networkInterfaces.nextElement();
    if(networkInterface.getName().startsWith("wlan")) {
        System.out.println(networkInterface.getDisplayName());
    }
}

public static String getInterfaceName() {
    try
    {
        BufferedReader reader = new BufferedReader(new InputStreamReader(new FileInputStream("/proc/net/wireless")));

        // skip header
        reader.readLine();
        reader.readLine();

        // read first interesting line
        String ifLine = reader.readLine();
        reader.close();

        // extract interface name
        String ifName = ifLine.substring(0, ifLine.indexOf(':'));

        return ifName.trim();
    }
    catch(Exception e) {
        e.printStackTrace();
        return null;
    }
}