服务器向指定客户端,socket服务器向指定客户端发送消息

我这个是监听send按钮向所有客户端发送消息&＃xff0c;请问怎样才能向指定客户端发送呢

public void actionPerformed(ActionEvent e) {

String data &＃61; "";

if ("sendMsg".equals(e.getActionCommand())) {

if ((data &＃61; this.input.getText()) !&＃61; null) {

this.appendMsg("服务器-->" &＃43; data);

Set keset &＃61; this.clients.keySet();

java.util.Iterator iter &＃61; keset.iterator();

while (iter.hasNext()) {

int key &＃61; iter.next();

Socket socket &＃61; clients.get(key);

try {

Writer writer &＃61; new OutputStreamWriter(

socket.getOutputStream());

writer.write(ByteUtils.hexStr2Str(data.replace(" ", "")));

logger.debug(data);

writer.flush();

} catch (SocketException e1) {

} catch (IOException e1) {

e1.printStackTrace();

}

}

this.input.setText("");

}

}

}