使用基于 Java 的 netty 套接字 io 客户端向所有浏览器发送消息

Question

我目前正在尝试向基于 java 的套接字 io socket.io 客户端的所有浏览器发送消息-netty。但目前它一次仅向一个浏览器发送消息。 片段如下：

public class IOClientListener implements INSIOHandler {
    private INSIOClient ioClient=null;
    private final static Logger log=LoggerFactory.getLogger(IOClientListener.class);

    @Override
    public void OnConnect(INSIOClient client) {
        System.out.println("A user connected :: " + client.getSessionID());
                client.send("Hey you are connected to myhope.com");

    }

    @Override
    public void OnDisconnect(INSIOClient client) {
        System.out.println("A user disconnected :: " + client.getSessionID() + " :: hope it was fun");  
    }

    @Override
    public void OnMessage(INSIOClient client, String message) {
        System.out.println("A message received:: " + message + " :: hope it was fun");
    }

    @Override
    public void OnShutdown() {
    }

    public INSIOClient getIOClient(){
        return this.ioClient;
    }
}

我想知道如何使用此客户端广播消息。提前致谢

Answer 1

您可以使用 Netty ChannelGroup 来实现此目的

....
 static ChannelGroup allClientChannels = new DefaultChannelGroup();


 @Override
public void OnConnect(INSIOClient client) {
    System.out.println("A user connected :: " + client.getSessionID());
            client.send("Hey you are connected to myhope.com");

   allClientChannels.add(client.getCTX().getChannel());
}


@Override
public void OnDisconnect(INSIOClient client) {
    System.out.println("A user disconnected :: " + client.getSessionID() + " :: hope it was fun");
    allClientChannels.remove(client.getCTX().getChannel());

}

...

//when you want to send a broadcase message

allClientChannels.write(yourMessage);

有关更多详细信息，请查看 ChannelGroup API 文档