java利用udp实现发送数据

package cn.uu710.SocketTest;

import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;
import java.net.SocketException;

public class Send1 {

 public static void main(String[] args) {
 try {
  DatagramSocket datagramSocket = new DatagramSocket();
  String data = "这是张佑发送的消息！";
  DatagramPacket datagramPacket = new DatagramPacket(data.getBytes(),data.getBytes().length,InetAddress.getLocalHost(),8088);
  //发送
  System.out.println("正在准备发送……");
  datagramSocket.send(datagramPacket);
  System.out.println("已发送……");
  datagramSocket.close();
  
 } catch (Exception e) {
  // TODO Auto-generated catch block
  e.printStackTrace();
 }

 }

}

package cn.uu710.SocketTest;

import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.SocketException;

import com.sun.org.apache.bcel.internal.generic.NEW;

public class receive1 {

 public static void main(String[] args) {
 try {
  DatagramSocket datagramSocket = new DatagramSocket(8088);
  byte[] b = new byte[1024];
  DatagramPacket datagramPacket = new DatagramPacket(b,b.length);
  System.out.println("正在准备接收……");
  //未接收之前为阻塞状态
  datagramSocket.receive(datagramPacket);
  System.out.println("接收内容："+new String(b,0,b.length));
  System.out.println("已经接收……");
  datagramSocket.close();
  
 } catch (Exception e) {
  // TODO Auto-generated catch block
  e.printStackTrace();
 }
 
 }

}