[Java]Android发送UDP数据包

首先是Android端，先创建一个内部类UDP，继承Thread类，在run方法中完成数据包的发送操作；在onCreate()方法中创建并执行该内部类的实例（多线程）实现数据包发送。

代码段如下：

public class Udp extends Thread {
		private String dataString;

		public Udp(String dataString) {
			this.dataString = dataString;
		}

		public void run() {
			try {
				DatagramSocket clientSocket = new DatagramSocket();
				InetAddress ipAddr = InetAddress.getByName("192.168.99.35");
				byte[] sendData = dataString.getBytes();
				DatagramPacket sendPacket = new DatagramPacket(sendData,
						sendData.length, ipAddr, 32768);
				clientSocket.send(sendPacket);
				clientSocket.close();
			} catch (SocketException e) {
				e.printStackTrace();
			} catch (UnknownHostException e) {
				e.printStackTrace();
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
	}

protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.