blocks|key|1228988|text|你应该使用Quartz来做这项工作，在这里可以快速入门。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1228989|http://www.mkyong.com/java/quartz-scheduler-example/|offset|length|1228990|关于确切的表达式，下面是带有示例的docs|1228991|http://www.quartz-scheduler.org/documentation/quartz-1.x/tutorials/crontrigger|1228992|entityMap|0|LINK|mutability|MUTABLE|url|1^0|0|0|1G|0|0|0|0|26|1|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|S|8|@]|9|@$D|T|E|U|1|V]]|A|$]]|$1|F|3|G|5|6|7|W|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|X|8|@]|9|@$D|Y|E|Z|1|10]]|A|$]]|$1|J|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|K|$L|$5|M|N|O|A|$P|C]]|Q|$5|M|N|O|A|$P|I]]]]

You should use Quartz for the job, quick getting started available here

<a href="http://www.mkyong.com/java/quartz-scheduler-example/" rel="nofollow">http://www.mkyong.com/java/quartz-scheduler-example/</a>

Regarding the exact expression, here are the docs, loaded with examples

<a href="http://www.quartz-scheduler.org/documentation/quartz-1.x/tutorials/crontrigger" rel="nofollow">http://www.quartz-scheduler.org/documentation/quartz-1.x/tutorials/crontrigger</a>

blocks|key|1070205|text|不要重新发明车轮，使用现有的应用程序，使用石英调度器或类似的应用程序。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1070206|entityMap|0|LINK|mutability|MUTABLE|url|http://quartz-scheduler.org/^0|L|5|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

Don't reinvent the wheels, use existing application, use <a href="http://quartz-scheduler.org/">Quartz scheduler</a> or similar app.

blocks|key|1074572|text|来自erb|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1074573|使用ScheduledExecutorService|1074574|+private+final+ScheduledExecutorService+scheduler+=+Executors.newScheduledThreadPool(1);
+scheduler.scheduleAtFixedRate(yourRunnable,+0,+5,+MINUTES);

+private+final+ScheduledExecutorService+scheduler1+=+Executors.newScheduledThreadPool(1);
+scheduler1.scheduleAtFixedRate(yourRunnable1,+0,+15,+MINUTES);

+private+final+ScheduledExecutorService+scheduler2+=+Executors.newScheduledThreadPool(1);
+scheduler2.scheduleAtFixedRate(yourRunnable2,+0,+30,+MINUTES);|code-block|syntax|javascript|1074575|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/a/7814149/1992780|1|http://download.oracle.com/javase/6/docs/api/java/util/concurrent/ScheduledExecutorService.html^0|2|3|0|0|2|O|1|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@$A|V|B|W|1|X]]|C|$]]|$1|D|3|E|5|6|7|Y|8|@]|9|@$A|Z|B|10|1|11]]|C|$]]|$1|F|3|G|5|H|7|12|8|@]|9|@]|C|$I|J]]|$1|K|3|-4|5|6|7|13|8|@]|9|@]|C|$]]]|L|$M|$5|N|O|P|C|$Q|R]]|S|$5|N|O|P|C|$Q|T]]]]

From <a href="https://stackoverflow.com/a/7814149/1992780">b_erb</a>:

Use a <a href="http://download.oracle.com/javase/6/docs/api/java/util/concurrent/ScheduledExecutorService.html" rel="nofollow noreferrer">ScheduledExecutorService</a>:

<pre><code> private final ScheduledExecutorService scheduler = Executors.newScheduledThreadPool(1);
 scheduler.scheduleAtFixedRate(yourRunnable, 0, 5, MINUTES);

 private final ScheduledExecutorService scheduler1 = Executors.newScheduledThreadPool(1);
 scheduler1.scheduleAtFixedRate(yourRunnable1, 0, 15, MINUTES);

 private final ScheduledExecutorService scheduler2 = Executors.newScheduledThreadPool(1);
 scheduler2.scheduleAtFixedRate(yourRunnable2, 0, 30, MINUTES);
</code></pre>

blocks|key|1070250|text|如果使用的是Spring，则可以使用@Scheduled来调度任务。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1070251|检查这里以获得状态的https://spring.io/guides/gs/scheduling-tasks/。|1070252|如果简单的周期性调度不够表达，那么可以提供一个cron表达。例如，以下内容仅在工作日每15分钟执行一次。|1070253|@Scheduled(cron="*+*/15+*+*+*+MON-FRI")
public+void+doSomething()+{
++++//+something+that+should+execute+on+weekdays+only
}|code-block|syntax|javascript|1070254|在您的情况下，您需要注意cron高速公路的*和/。|1070255|*+:("all+values")+-+used+to+select+all+values+within+a+field.+For+example,+"*"+in+the+minute+field+means+"every+minute".

/+:-+used+to+specify+increments.+For+example,+"0/15"+in+the+seconds+field+means+"the+seconds+0,+15,+30,+and+45".+And+"5/15"+in+the+seconds+field+means+"the+seconds+5,+20,+35,+and+50".+|1070256|entityMap|0|LINK|mutability|MUTABLE|url|https://spring.io/guides/gs/scheduling-tasks/|1|http://www.quartz-scheduler.org/documentation/quartz-1.x/tutorials/crontrigger^0|6|6|I|A|0|A|19|0|0|N|6|1|0|0|L|1|N|1|0|0^^$0|@$1|2|3|4|5|6|7|12|8|@$9|13|A|14|B|C]|$9|15|A|16|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|17|8|@]|D|@$9|18|A|19|1|1A]]|E|$]]|$1|H|3|I|5|6|7|1B|8|@]|D|@$9|1C|A|1D|1|1E]]|E|$]]|$1|J|3|K|5|L|7|1F|8|@]|D|@]|E|$M|N]]|$1|O|3|P|5|6|7|1G|8|@$9|1H|A|1I|B|C]|$9|1J|A|1K|B|C]]|D|@]|E|$]]|$1|Q|3|R|5|L|7|1L|8|@]|D|@]|E|$M|N]]|$1|S|3|-4|5|6|7|1M|8|@]|D|@]|E|$]]]|T|$U|$5|V|W|X|E|$Y|Z]]|10|$5|V|W|X|E|$Y|11]]]]

If you are using <code>Spring</code>, you can use <code>@Scheduled</code> to schedule a task. 

Check here to get statred <a href="https://spring.io/guides/gs/scheduling-tasks/" rel="nofollow">https://spring.io/guides/gs/scheduling-tasks/</a>.

If simple periodic scheduling is not expressive enough, then a <a href="http://www.quartz-scheduler.org/documentation/quartz-1.x/tutorials/crontrigger" rel="nofollow">cron expression</a> may be provided. For example, the following will only execute on weekdays for every 15 minutes.

<pre><code>@Scheduled(cron="* */15 * * * MON-FRI")
public void doSomething() {
 // something that should execute on weekdays only
}
</code></pre>

You need to pay attention to <code>*</code> and <code>/</code> of cron expresssion in your case

<pre><code>* :("all values") - used to select all values within a field. For example, "*" in the minute field means "every minute".

/ :- used to specify increments. For example, "0/15" in the seconds field means "the seconds 0, 15, 30, and 45". And "5/15" in the seconds field means "the seconds 5, 20, 35, and 50". 
</code></pre>

blocks|key|1074619|text|在石英2号里，这个应该是|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1074620|Trigger+trigger+=+TriggerBuilder
++++.newTrigger()
++++.withIdentity("someTriggerName",+"someGroup")
++++.withSchedule(
++++++++CronScheduleBuilder.cronSchedule("0+5,15,30+*+*+*+?"))
++++.build();|code-block|syntax|javascript|1074621|这将创建一个触发器，该触发器会在一小时后的正确时间内激活。第一个字段是秒；其次是分钟；然后是小时；月份；月份；周的日期(您想要指定这些日期，因此是?)。您可以为每个条目指定多个条目，而*的意思是始终如此；因此，这是所有的日子，在5、10或15分钟零秒之后。|offset|length|style|CODE|1074622|现在你可以创建一个石英作业了|1074623|public+class+MyJob+implements+Job
{
++++public+void+execute(JobExecutionContext+context+throws+JobExecutionException+{
++++++++//+do+something+useful++
++++}
}|1074624|并使用此触发器对其进行调度：|1074625|Scheduler+sched+=+new+StdSchedulerFactory().getScheduler();
++++sched.start();
++++sched.scheduleJob(new+MyJob(),+trigger);|1074626|entityMap^0|0|0|21|1|2K|1|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Y|8|@$I|Z|J|10|K|L]|$I|11|J|12|K|L]]|9|@]|A|$]]|$1|M|3|N|5|6|7|13|8|@]|9|@]|A|$]]|$1|O|3|P|5|D|7|14|8|@]|9|@]|A|$E|F]]|$1|Q|3|R|5|6|7|15|8|@]|9|@]|A|$]]|$1|S|3|T|5|D|7|16|8|@]|9|@]|A|$E|F]]|$1|U|3|-4|5|6|7|17|8|@]|9|@]|A|$]]]|V|$]]

In Quartz 2, this would be

<pre><code>Trigger trigger = TriggerBuilder
 .newTrigger()
 .withIdentity("someTriggerName", "someGroup")
 .withSchedule(
 CronScheduleBuilder.cronSchedule("0 5,15,30 * * * ?"))
 .build();
</code></pre>

This creates a trigger that activates at the right minutes past the hour. The first field is seconds; next is minutes; then hours; day of month; month; day of week (which you want to be unspecified, hence the <code>?</code>). You can specify multiple entries for each, and a <code>*</code> means always; so this is all days, at 5, 10 or 15 minutes and 0 seconds past.

Now you can create a Quartz job

<pre><code>public class MyJob implements Job
{
 public void execute(JobExecutionContext context throws JobExecutionException {
 // do something useful 
 }
}
</code></pre>

and schedule it using this trigger:

<pre><code>Scheduler sched = new StdSchedulerFactory().getScheduler();
 sched.start();
 sched.scheduleJob(new MyJob(), trigger);
</code></pre>

blocks|key|2465542|text|我认为，您可以使用石英调度器实现任何调度作业。它很容易使用。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2465543|entityMap|0|LINK|mutability|MUTABLE|url|http://quartz-scheduler.org/^0|9|5|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

I think, you can use <a href="http://quartz-scheduler.org/" rel="nofollow">Quartz scheduler</a> to implement any scheduling jobs. Its very easy to use.

blocks|key|1074659|text|请参阅下面的调度程序代码：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1074660|public+class+SimpleScheduler+
{
++++public+static+void+main(+String[]+args+)+throws+Exception
++++{
++++++++JobDetail+job+=+new+JobDetail();
++++++++job.setName("hello");
++++++++job.setJobClass(SchedulerJob+.class);

++++++++//configure+the+scheduler+time
++++++++SimpleTrigger+trigger+=+new+SimpleTrigger();
++++++++trigger.setName("hello+name");
++++++++trigger.setStartTime(new+Date(System.currentTimeMillis()+%2B+1000));
++++++++trigger.setRepeatCount(SimpleTrigger.REPEAT_INDEFINITELY);
++++++++trigger.setRepeatInterval(30000);

++++++++//schedule+it
++++++++Scheduler+scheduler+=+new+StdSchedulerFactory().getScheduler();
++++++++scheduler.start();
++++++++scheduler.scheduleJob(job,+trigger);

++++}
}|code-block|syntax|javascript|1074661|接口名称：|1074662|public+class+SchedulerJob+implements+Job
{
++++public+void+execute(JobExecutionContext+context)
++++throws+JobExecutionException+{

++++++++System.out.println("u+develop+the+code+here");++

++++}

}|1074663|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

see below code for scheduler:

<pre><code>public class SimpleScheduler 
{
 public static void main( String[] args ) throws Exception
 {
 JobDetail job = new JobDetail();
 job.setName("hello");
 job.setJobClass(SchedulerJob .class);

 //configure the scheduler time
 SimpleTrigger trigger = new SimpleTrigger();
 trigger.setName("hello name");
 trigger.setStartTime(new Date(System.currentTimeMillis() + 1000));
 trigger.setRepeatCount(SimpleTrigger.REPEAT_INDEFINITELY);
 trigger.setRepeatInterval(30000);

 //schedule it
 Scheduler scheduler = new StdSchedulerFactory().getScheduler();
 scheduler.start();
 scheduler.scheduleJob(job, trigger);

 }
}
</code></pre>

interface name:

<pre><code>public class SchedulerJob implements Job
{
 public void execute(JobExecutionContext context)
 throws JobExecutionException {

 System.out.println("u develop the code here"); 

 }

}
</code></pre>

I need to write a scheduler class which should be invoked every 5th, 15th and 30th minute of hour.

How should I start working on this scheduler? I want to use Java 7.

One way is to know the current time and then schedule calculating the difference of each timer.

Is there any library or class which already does similar work?

How to create a scheduler class in Java

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我需要编写一个调度器类，应该每5分钟、15分钟和30分钟调用一次。我应该如何开始处理这个调度程序？我想使用Java 7。一种方法是知道当前的时间，然后调度计算每个定时器的差异。是否有任何图书馆或类已经做类似的工作？

问如何在Java中创建调度器类
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问如何在Java中创建调度器类EN