Java 关闭ScheduledExecutorService
所以我有一个discord机器人,我试图每小时发送一条消息。我用预定的执行人服务让这部分工作起来。从我说开始!未来 我想在发送邮件时阻止它!未来 但是,我无法让它正常工作。这是我的密码:Java 关闭ScheduledExecutorService,java,scheduled-tasks,discord,timertask,scheduledexecutorservice,Java,Scheduled Tasks,Discord,Timertask,Scheduledexecutorservice,所以我有一个discord机器人,我试图每小时发送一条消息。我用预定的执行人服务让这部分工作起来。从我说开始!未来 我想在发送邮件时阻止它!未来 但是,我无法让它正常工作。这是我的密码: String[] args = event.getMessage().getContentRaw().split(" "); if (args[0].equalsIgnoreCase("!futuresOn")) { Color red = new
String[] args = event.getMessage().getContentRaw().split(" ");
if (args[0].equalsIgnoreCase("!futuresOn")) {
Color red = new Color(255, 0, 0);
Color green = new Color(0, 204, 0);
Runnable futRun = new Runnable() {
public void run() {
EmbedBuilder futuresBot = new EmbedBuilder();
futuresBot.setAuthor("Futures Bot", null, event.getAuthor().getAvatarUrl());
try {
futuresBot.addField("**S&P 500**", getSPY(), false);
futuresBot.addField("**NASDAQ**", getNASDAQ(), false);
futuresBot.addField("**DOW**", getDOW(), false);
if (getSPY().contains("+")) {
futuresBot.setColor(green);
}
else {
futuresBot.setColor(red);
}
}
catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
futuresBot.setFooter("Cantina Capital", event.getGuild().getIconUrl());
event.getChannel().sendMessage(futuresBot.build()).queue();
}
};
exec.scheduleAtFixedRate(futRun, 0, 1, TimeUnit.HOURS);
}
if (args[0].equalsIgnoreCase("!futuresoff")) {
event.getChannel().sendMessage("Futures bot off.").queue();
exec.shutdownNow();
}
我尝试过几种不同的方法,但我不能让它正常工作。快到终点了!未来之所以如此,部分是因为它发送了“未来机器人关闭”消息。我只是希望它能够发送消息时,每小时一次!futureson已发送,而不是何时发送!“未来”已发送。我也试过了
ScheduledThreadPoolExecutor exec=新的ScheduledThreadPoolExecutor(0)代码>
如果有人能为我指明正确的方向,我将不胜感激。首先,您应该将scheduleAtFixedRate()
的结果保存在Listener类中
ScheduledFuture scheduledFuture = null;
然后您可以在此对象上使用cancel()
来停止它。
您还应该在调度之前测试它是否为null,并在取消之前测试它是否已设置:
String[] args = event.getMessage().getContentRaw().split(" ");
if (args[0].equalsIgnoreCase("!futuresOn")) {
Color red = new Color(255, 0, 0);
Color green = new Color(0, 204, 0);
Runnable futRun = new Runnable() {
public void run() {
EmbedBuilder futuresBot = new EmbedBuilder();
futuresBot.setAuthor("Futures Bot", null, event.getAuthor().getAvatarUrl());
try {
futuresBot.addField("**S&P 500**", getSPY(), false);
futuresBot.addField("**NASDAQ**", getNASDAQ(), false);
futuresBot.addField("**DOW**", getDOW(), false);
if (getSPY().contains("+")) {
futuresBot.setColor(green);
}
else {
futuresBot.setColor(red);
}
}
catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
futuresBot.setFooter("Cantina Capital", event.getGuild().getIconUrl());
event.getChannel().sendMessage(futuresBot.build()).queue();
}
};
if (scheduledFuture == null)
scheduledFuture = exec.scheduleAtFixedRate(futRun, 0, 1, TimeUnit.HOURS);
}
if (args[0].equalsIgnoreCase("!futuresoff")) {
event.getChannel().sendMessage("Futures bot off.").queue();
if (scheduledFuture != null) {
scheduledFuture.cancel(true);
scheduledFuture = null;
}
}
```
似乎您需要使用取消,cf.duplicate