Netty-如何在客户端中获得服务器响应

Netty-如何在客户端中获得服务器响应

杰斯坦是正确的。就我而言，我有一个需要处理价格变动数据的客户。我使用Antlr进行解析。我在解析器中触发事件，但就我而言，我的协议是基于字符串的。下面是一个没有Antlr的示例，在您可能是用户的情况下，我传递了String消息。

//----------------- Event --------------public class DataChangeEvent {    private String message;    public DataChangeEvent(String message) {        this.message = message;    }    public String getMessage() {        return message;    }}//----------------- Listener --------------public interface DataChangeListenter {    public void dataChangeEvent(DataChangeEvent event);}//----------------- Event Handler that fires the dataChange events --------------// This class needs to be static since you need to register all your classes that want to be notified of data change eventspublic class DataChangedHandler {    private static List<DataChangeListenter> listeners = new ArrayList<DataChangeListenter>();    public static void registerDataChangeListener(DataChangeListenter listener) {        listeners.add(listener);    }    public static void fireDataChange(DataChangeEvent dataChangeEvent) {        for(DataChangeListenter listenter : listeners) { listenter.dataChangeEvent(dataChangeEvent);        }    }}//----------------- Example class that implements the listener and registers itself for events --------------public class ProcessMessage implements DataChangeListenter {    public ProcessMessage() {        DataChangedHandler.registerDataChangeListener(this);    }    public void dataChangeEvent(DataChangeEvent event) {        //Depending on your protocal, I use Antlr to parse my message        System.out.println(event.getMessage());    }}//---------------- Netty Handler -----------public class TelnetClientHandler extends SimpleChannelHandler {    private static final Logger logger = Logger.getLogger(TelnetClientHandler.class.getName());    @Override    public void messageReceived(ChannelHandlerContext ctx, MessageEvent e) {        String message = (String) e.getMessage();        DataChangedHandler.fireDataChange(message);    }}