UDP 客户端接收

 Java代码

import java.io.InputStream;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.util.Properties;

public class UdpClientSocket {

public static void main(String[] args) throws Exception {

InputStream in =UdpClientSocket.class.getResourceAsStream("/config/udpConfig.properties");
Properties properties = new Properties();
properties.load(in);

int listenPort = Integer.parseInt(properties.getProperty("listenPort"));
int maxPacketsLength = Integer.parseInt(properties.getProperty("maxPacketsLength"));

while (true) {
DatagramSocket ds = new DatagramSocket(listenPort);
byte[] buf = new byte[maxPacketsLength];
DatagramPacket dp = new DatagramPacket(buf, maxPacketsLength);
// dp.getData();
// System.out.println(dp.getData());
ds.receive(dp);
System.out.println(new String(buf, 0, dp.getLength()));
ds.close();
}
}
}