[英]Android Wake On Lan in Java
i'm trying to make a Wake On Lan application in Java (for Android), so I searched, and found this code: 我试图用Java(适用于Android)制作Wake On Lan应用程序,所以我进行了搜索,发现以下代码:
import java.io.*;
import java.net.*;
public class WakeOnLan {
public static final int PORT = 9;
public static void main(String[] args) {
if (args.length != 2) {
System.out.println("Usage: java WakeOnLan <broadcast-ip> <mac-address>");
System.out.println("Example: java WakeOnLan 192.168.0.255 00:0D:61:08:22:4A");
System.out.println("Example: java WakeOnLan 192.168.0.255 00-0D-61-08-22-4A");
System.exit(1);
}
String ipStr = args[0];
String macStr = args[1];
try {
byte[] macBytes = getMacBytes(macStr);
byte[] bytes = new byte[6 + 16 * macBytes.length];
for (int i = 0; i < 6; i++) {
bytes[i] = (byte) 0xff;
}
for (int i = 6; i < bytes.length; i += macBytes.length) {
System.arraycopy(macBytes, 0, bytes, i, macBytes.length);
}
InetAddress address = InetAddress.getByName(ipStr);
DatagramPacket packet = new DatagramPacket(bytes, bytes.length, address, PORT);
DatagramSocket socket = new DatagramSocket();
socket.send(packet);
socket.close();
System.out.println("Wake-on-LAN packet sent.");
}
catch (Exception e) {
System.out.println("Failed to send Wake-on-LAN packet: + e");
System.exit(1);
}
}
private static byte[] getMacBytes(String macStr) throws IllegalArgumentException {
byte[] bytes = new byte[6];
String[] hex = macStr.split("(\\:|\\-)");
if (hex.length != 6) {
throw new IllegalArgumentException("Invalid MAC address.");
}
try {
for (int i = 0; i < 6; i++) {
bytes[i] = (byte) Integer.parseInt(hex[i], 16);
}
}
catch (NumberFormatException e) {
throw new IllegalArgumentException("Invalid hex digit in MAC address.");
}
return bytes;
}
}
I tried it on my PC, it worked, but it doesn't work for Android :( I tried to edit it, but still nothing :( Here's my code for Android: 我在PC上试用了它,但是可以在Android上使用:(我尝试对其进行编辑,但是仍然没有效果:(这是我在Android上的代码:
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;
import com.macura.wakemypc.MainActivity;
import com.macura.wakemypc.R;
import com.macura.wakemypc.MainActivity;
import com.macura.wakemypc.MainActivity;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.widget.EditText;
public class MainActivity extends Activity {
public static final int PORT = 9;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
public void buttonClick(View view) {
EditText iptext = (EditText)findViewById(R.id.editText1);
EditText mactext = (EditText)findViewById(R.id.editText2);
String mac = mactext.toString();
String broadcastIP = iptext.toString();
MainActivity.wakeup(broadcastIP, mac);
}
private static byte[] getMacBytes(String mac) throws IllegalArgumentException {
// TODO Auto-generated method stub
byte[] bytes = new byte[6];
if (mac.length() != 12)
{
throw new IllegalArgumentException("Invalid MAC address...");
}
try {
String hex;
for (int i = 0; i < 6; i++) {
hex = mac.substring(i*2, i*2+2);
bytes[i] = (byte) Integer.parseInt(hex, 16);
}
}
catch (NumberFormatException e) {
throw new IllegalArgumentException("Invalid hex digit...");
}
return bytes;
}
public static void wakeup(String broadcastIP, String mac) {
if (mac == null) {
return;
}
try {
byte[] macBytes = getMacBytes(mac);
byte[] bytes = new byte[6 + 16 * macBytes.length];
for (int i = 0; i < 6; i++) {
bytes[i] = (byte) 0xff;
}
for (int i = 6; i < bytes.length; i += macBytes.length) {
System.arraycopy(macBytes, 0, bytes, i, macBytes.length);
}
InetAddress address = InetAddress.getByName(broadcastIP);
DatagramPacket packet = new DatagramPacket(bytes, bytes.length, address, 5555);
DatagramSocket socket = new DatagramSocket();
socket.send(packet);
socket.close();
}
catch (Exception e) {
}
}
}
Everytime I enter the ip and mac adress it does nothing. 每次我输入ip和mac地址时,它什么都不做。 So, can you help me, please?
所以,能帮我吗? :) Yeah, and sorry for my english :D
:)是的,对不起我的英语:D
I'm not shure about rest of the code, but you should use String mac = mactext.getText().toString();
我不确定其余的代码,但是您应该使用
String mac = mactext.getText().toString();
instead of String mac = mactext.toString();
而不是
String mac = mactext.toString();
cause without this change you converting to string entire EditText not just its value. 如果不进行此更改,则会将整个EditText转换为字符串,而不仅仅是其值。 PS i know its 10 months after question, still for anyone who would come here looking for WOL android code it should be usefull
附言:我知道问题十个月后,仍然对任何会来这里寻找WOL android代码的人都是有用的
I know it's a little bit late, but i also tried a long time to get this java code working on android. 我知道这有点晚了,但我也尝试了很长时间才能使此Java代码在android上工作。 The solution is to use the broadcast ip .
解决方案是使用广播IP 。 That's all.
就这样。 Cheers j
干杯
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