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1 package treeVnc;
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2
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3 import java.io.IOException;
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4 import java.net.DatagramPacket;
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5 import java.net.InetAddress;
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6 import java.net.MulticastSocket;
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7
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8 public class BroadCastClient {
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9 final int BUFSIZE = 1024;
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10 final String MCASTADDR = "224.0.0.1";
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11 final int PORT = 8183;
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12 private byte[] buf = new byte[BUFSIZE];
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13 private InetAddress mAddr;
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14 private MulticastSocket soc;
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15 private String str;
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16
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17 public BroadCastClient(String _str) {
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18 str = _str;
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19 }
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20
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21 void createSocket() {
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22 try {
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23 mAddr = InetAddress.getByName(MCASTADDR);
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24 soc = new MulticastSocket();
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25 soc.setTimeToLive(1);
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26 } catch (IOException e) {
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27 e.printStackTrace();
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28 }
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29 }
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30
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31 void sendData() {
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32 buf = str.getBytes();
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33 // System.out.println("strlen"+str.length());
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34 // System.out.println("str"+str);
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35 DatagramPacket sendPacket = new DatagramPacket(buf, str.length(),
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36 mAddr, PORT);
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37 try {
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38 soc.send(sendPacket);
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39 } catch (IOException e) {
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40 e.printStackTrace();
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41 }
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42 }
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43 /*
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44 @Override
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45 public void run() {
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46 createSocket();
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47 while (true) {
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48 sendData();
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49 try {
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50 Thread.sleep(2000);
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51 } catch (InterruptedException e) {
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52 System.out.println(e);
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53 }
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54 }
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55 }
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56 */
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57 }
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