DatagramPacket(byte[] buf, int length): 用来接受长度为length的buf数据(即数据存于字节数组buf中) 发送类型: DatagramPacket(byte[] buf, int length, InetAddress address, int port); 将length长的buf数据发送到指定的地址的端口号处 DatagramPacket(byte[] buf, int length, SocketAddress address); 将len...
DatagramSocket(int port) throws SocketEeption 创建一个DatagramSocket,并将其与给定的端口号绑定。 DatagramSocket(int port, InetAddress address) throws SocketEeption 创建一个DatagramSocket,并将其与指定的端口号和主机地址绑定。 3 Java DatagramPacket类 Java DatagramPacket是可以发送或接收的消息。如果发送多个数...
DatagramPacket此类表示数据报包。 packagecn.sxt.UdpDemo;importjava.io.IOException;importjava.net.DatagramPacket;importjava.net.DatagramSocket;importjava.net.InetAddress;importjava.util.Scanner;publicclassClientB {publicstaticvoidmain(String[] args)throwsIOException {//创建一个datagram socket 用于结束DatagramS...
@avi不要使用相同的数据报套接字来获取依赖。为了获得回复，您必须提到服务器数据报socket.use的端口号 ...
// Create a datagram socket bound to an arbitrary port. s = new DatagramSocket (); // Create a byte array that will hold the data portion of a // datagram packet's message. That message originates as a // String object, which gets converted to a sequence of ...
Java使用DatagramSocket代表UDP协议的Socket,DatagramSocket本身只是码头,不维护状态,不能产生IO流,它的唯一作用就是接收和发送数据报,Java使用DatagramPacket来代表数据报, DatagramSocket接收和发送的数据都是通过DatagramPacket对象完成的。 发布于 2024-04-13 10:46・IP 属地河北 ...
DatagramPacket:表示一个UDP数据报,代表系统中设定的UDP数据报的二进制结构 DatagramPacket(byte[]buf,int length)->接受数组 DatagramPacket(byte[]buf,int offset,int length,SocketAddress address(目的端口和目的IP) ) DatagramPacket作为UDP数组报,必然要承载一些数据,通过手动指定的byte[]作为存储数据的空间。
用于接收数据DatagramPacketpacket=newDatagramPacket(buffer,buffer.length);// 接收数据socket.receive(packet);// 获取发送方的地址信息InetAddressaddress=packet.getAddress();// 打印发送方的地址信息System.out.println("发送方地址:"+address.getHostAddress());// 关闭套接字socket.close();}catch(IOException...
public static void main(String[] args) { SpringApplication.run(dwdp.class, args); try { ServerSocket serverSocket = new ServerSocket(9300); System.out.println("启动服务器..."); Socket socket = serverSoc... spring boot tcp/ip java 客户端 服务器 java mqtt服务端编写 # 使用Java编写MQTT...
if an error occurs while receiving the packet. Remarks Receives a datagram packet from this socket. When this method returns, theDatagramPacket's buffer is filled with the data received. The datagram packet also contains the sender's IP address, and the port number on...