很抱歉,如果这个问题已经存在,但我找不到任何答案,那可以帮助我。
我正试图找到一种方法来获取活动网络中存在的ip + mac列表。
有没有办法用java或c ++来实现它,然后将其推荐给Android的java应用程序?
答案 0 :(得分:3)
wifi netNetwork中的这段代码搜索设备...
package com.example.deviceswichisconnected;
import java.io.IOException;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.ArrayList;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
public class MainActivity extends Activity {
private int LoopCurrentIP = 0;
String ad ;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//ArrayList<InetAddress> ar = getConnectedDevices( );
}
public ArrayList<InetAddress> getConnectedDevices(String YourPhoneIPAddress) {
ArrayList<InetAddress> ret = new ArrayList<InetAddress>();
LoopCurrentIP = 0;
String IPAddress = "";
String[] myIPArray = YourPhoneIPAddress.split("\\.");
InetAddress currentPingAddr;
for (int i = 0; i <= 255; i++) {
try {
// build the next IP address
currentPingAddr = InetAddress.getByName(myIPArray[0] + "." +
myIPArray[1] + "." +
myIPArray[2] + "." +
Integer.toString(LoopCurrentIP));
ad = currentPingAddr.toString(); /////////////////
Log.d("MyApp",ad); //////////////
// 50ms Timeout for the "ping"
if (currentPingAddr.isReachable(50)) {
ret.add(currentPingAddr);
ad = currentPingAddr.toString(); /////////////////
Log.d("MyApp",ad); //////////////
}
} catch (UnknownHostException ex) {
} catch (IOException ex) {
}
LoopCurrentIP++;
}
return ret;
}
}
答案 1 :(得分:0)
查看Bonjour / Zeroconf:http://android.noisepages.com/2010/02/yes-android-can-do-zeroconfbonjour-jmdns/
但是,除非您以某种方式访问其路由器,否则不要希望生成LAN上所有设备的列表。