java telegrambot 制作菜单

以下是一个简单的Java Telegram Bot制作菜单的示例代码：

import org.telegram.telegrambots.meta.api.methods.send.SendMessage;
import org.telegram.telegrambots.meta.api.objects.replykeyboard.ReplyKeyboardMarkup;
import org.telegram.telegrambots.meta.api.objects.replykeyboard.buttons.KeyboardRow;

public class MyBot extends TelegramLongPollingBot {

    @Override
    public void onUpdateReceived(Update update) {
        if (update.hasMessage() && update.getMessage().hasText()) {
            String messageText = update.getMessage().getText();
            long chatId = update.getMessage().getChatId();

            if ("/menu".equals(messageText)) {
                SendMessage message = new SendMessage()
                        .setChatId(chatId)
                        .setText("Please choose an option:");

                ReplyKeyboardMarkup keyboardMarkup = new ReplyKeyboardMarkup();
                keyboardMarkup.setResizeKeyboard(true);
                keyboardMarkup.setOneTimeKeyboard(true);
                keyboardMarkup.setSelective(true);

                List<KeyboardRow> keyboard = new ArrayList<>();
                KeyboardRow row = new KeyboardRow();
                row.add("Option 1");
                row.add("Option 2");
                keyboard.add(row);

                row = new KeyboardRow();
                row.add("Option 3");
                keyboard.add(row);

                keyboardMarkup.setKeyboard(keyboard);
                message.setReplyMarkup(keyboardMarkup);

                try {
                    execute(message);
                } catch (TelegramException e) {
                    e.printStackTrace();
                }
            }
        }
    }

}

在此示例中，当用户发送“/menu”时，将向用户发送一个包含选项的菜单。菜单使用ReplyKeyboardMarkup类创建，并使用KeyboardRow类创建行。用户选择一个选项后，将收到另一条消息，其中包含所选选项的详细信息。