In this example we are going to explain how to useMulticastSocketin Java, in order to enable a server to easily send information tomultiple clients, which are all connected to the same port and address. We will describe the whole process, by creatingboth the server and the client, and gui...
In this example we are going to explain how to useMulticastSocketin Java, in order to enable a server to easily send information tomultiple clients, which are all connected to the same port and address. We will describe the whole process, by creatingboth the server and the client, and gui...
importjava.net.DatagramSocket;importjava.net.InetAddress;importjava.net.MulticastSocket;publicclassMulticastExample{privatestaticfinalStringGROUP_IP="230.0.0.0";// 组播地址privatestaticfinalintPORT=4446;// 端口publicstaticvoidmain(String[]args){try{// 创建一个MulticastSocketMulticastSocketmulticastSocket=new...
// join a Multicast group and send the group salutations ... String msg = "Hello"; InetAddress mcastaddr = InetAddress.getByName("228.5.6.7"); InetSocketAddress group = new InetSocketAddress(mcastaddr, 6789); NetworkInterface netIf = NetworkInterface.getByName("bge0"); MulticastSocket s = ne...
在Java中,可以使用java.net.MulticastSocket类来实现UDP组播的编程。MulticastSocket类是DatagramSocket类的子类,它支持发送和接收UDP组播数据包。 下面是一个简单的Java UDP组播的示例代码: importjava.net.*;publicclassMulticastExample{publicstaticvoidmain(String[]args)throwsException{InetAddressgroup=InetAddress.getByN...
首先使用所需端口创建MulticastSocket,然后调用joinGroup(InetAddress groupAddr)方法,即可加入组播组: // join a Multicast group and send the group salutations ... String msg = "Hello"; InetAddress group = InetAddress.getByName("228.5.6.7"); MulticastSocket s = new MulticastSocket(6789); s.joinGro...
String msg = "Hello"; InetAddress group = InetAddress.getByName("228.5.6.7"); MulticastSocket s = new MulticastSocket(6789); s.joinGroup(group); byte[] bytes = msg.getBytes(StandardCharsets.UTF_8); DatagramPacket hi = new DatagramPacket(bytes, bytes.length, group, 6789); s...
1.创建MulticastSocket对象:首先,通过创建一个MulticastSocket对象来建立与组播IP地址和端口的连接。例如,可以使用以下代码创建一个MulticastSocket对象: ``` MulticastSocket multicastSocket = new MulticastSocket(8888); ``` 2.绑定组播IP地址和端口:接下来,使用`joinGroup(InetAddress group)`方法将MulticastSocket绑定...
DatagramSocket主要用于发送私聊信息 当用户收到其他用户广播来的DatagramPacket时 即可获取该用户MulticastSocket对应的SocketAddress 这个SocketAddress将作为发送私聊信息的重要依据 本程序让MulticastSocket在 端口监听 而DatagramSocket在 端口监听 这样程序就可以根据其他用户广播来的DatagramPacket得到他的...
该类主要实现底层的网络通信功能 在该类中提供了一个broadCast方法 该方法使用MulticastSocket将指定字符串广播到所有客户端 还提供了sendSingle方法 该方法使用DatagramSocket将指定字符串发送到指定SocketAddress 如程序中前两行粗体字代码所示 除此之外 该类里还提供了 个内部线程类 ReadSingle和ReadBroad 这...