// 以下是各种广播方法
private synchronized void broadcast(int i, Object obj) {
ObjectOutputStream dataOut = null;
for (Enumeration e = clients.elements(); e.hasMoreElements(); ) {
dataOut = (ObjectOutputStream) (e.nextElement());
try {
dataOut.writeInt(i);
dataOut.flush();
dataOut.writeUnshared(obj);
} catch (Exception x) {
System.out.println(x.getMessage() + ": Failed to broadcast to client.");
clients.removeElement(dataOut);
}
}
}
