相关疑难解决方法(0)

我正在尝试构建一个聊天应用程序.我有一个代码将数据从客户端发送到服务器.当一个或多个客户端登录时(当客户端程序运行一次或多次时).server将不接受除首次连接之外的其余连接.请帮我解决这个问题,这是我的代码:

public class Server
{

//Creating non blocking socket

public void non_Socket() throws Exception {

    ServerSocketChannel ssChannel = ServerSocketChannel.open();
    int port = 80;
    int i=0;
    ssChannel.socket().bind(new InetSocketAddress(port));
    ssChannel.configureBlocking(false);
    while(true)
    {
        SocketChannel sc = ssChannel.accept();`

        if (sc == null) 
        {
            System.out.println("Socket channel is null");
            Thread.sleep(5000);
        }
        else 
        {
            System.out.println("Socket channel is not null");
            System.out.println("Received an incoming connection from " +
                    sc.socket().getRemoteSocketAddress()); 
            new PrintRequest(sc,i).start(); 
            i++;
        }
    }
}

public static void main(String [] abc) throws Exception
{
    new Server().non_Socket();
}
}

class …