如何在Java中使用Discord在特定时间发送不一致消息

import net.dv8tion.jda.api.JDA;
import net.dv8tion.jda.api.JDABuilder;
import net.dv8tion.jda.api.entities.MessageChannel;
import net.dv8tion.jda.api.entities.TextChannel;
import net.dv8tion.jda.api.events.message.MessageReceivedEvent;
import net.dv8tion.jda.api.hooks.ListenerAdapter;

import javax.security.auth.login.LoginException;
import java.time.LocalTime;
import java.util.Timer;
import java.util.TimerTask;

public class DiscordMessageScheduler extends ListenerAdapter {
    private static final String BOT_TOKEN = "YOUR_BOT_TOKEN";
    private static final String CHANNEL_ID = "YOUR_CHANNEL_ID";

    public static void main(String[] args) {
        try {
            JDA jda = JDABuilder.createDefault(BOT_TOKEN)
                    .addEventListeners(new DiscordMessageScheduler())
                    .build();
        } catch (LoginException e) {
            e.printStackTrace();
        }

        scheduleMessage();
    }

    @Override
    public void onMessageReceived(MessageReceivedEvent event) {
        if (event.getAuthor().isBot()) return;

        MessageChannel channel = event.getChannel();
        String message = event.getMessage().getContentRaw();

        if (message.equalsIgnoreCase("!stop")) {
            channel.sendMessage("Stopping the message scheduler...").queue();
            System.exit(0);
        }
    }

    private static void scheduleMessage() {
        Timer timer = new Timer();
        timer.schedule(new TimerTask() {
            @Override
            public void run() {
                JDA jda = JDABuilder.createDefault(BOT_TOKEN).build();
                TextChannel channel = jda.getTextChannelById(CHANNEL_ID);

                if (channel != null) {
                    channel.sendMessage("This is a scheduled message sent at " + LocalTime.now()).queue();
                }
                jda.shutdown();
            }
        }, getTimeDelay());
    }

    private static long getTimeDelay() {
        LocalTime currentTime = LocalTime.now();
        LocalTime targetTime = LocalTime.of(12, 0, 0); // 设置特定时间

        long delay = targetTime.toSecondOfDay() - currentTime.toSecondOfDay();

        if (delay < 0) {
            delay += 24 * 60 * 60; // 跨越到第二天
        }

        return delay * 1000;
    }
}