日期:2014-05-20 浏览次数:20673 次
import java.net.*;
public class UDPServer {
private static final int PORT = 5000;
private DatagramSocket dataSocket;
private DatagramPacket dataPacket;
private byte receiveByte[];
private String receiveStr;
public UDPServer() {
Init();
}
public void Init() {
try {
dataSocket = new DatagramSocket(PORT);
receiveByte = new byte[1024];
dataPacket = new DatagramPacket(receiveByte, receiveByte.length);
receiveStr = "";
int i = 0;
while (i == 0)// 无数据,则循环
{
dataSocket.receive(dataPacket);
i = dataPacket.getLength();
// 接收数据
if (i > 0) {
// 指定接收到数据的长度,可使接收数据正常显示,开始时很容易忽略这一点
receiveStr = new String(receiveByte, 0, dataPacket.getLength());
System.out.println(receiveStr);
i = 0;// 循环接收
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
public static void main(String args[]) {
new UDPServer();
}
}
import java.io.*;
import java.net.*;
public class UDPClient {
private static final int PORT = 5000;
private DatagramSocket dataSocket;
private DatagramPacket dataPacket;
private byte sendDataByte[];