?Spring自帶定時(shí)器任務(wù)：

code:

import org.springframework.beans.factory.annotation.Configurable; import org.springframework.scheduling.annotation.EnableScheduling; import org.springframework.scheduling.annotation.Scheduled; import org.springframework.stereotype.Component;import java.text.SimpleDateFormat; import java.util.Date;@Component @Configurable @EnableScheduling public class ScheduledTasks{@Scheduled(fixedRate = 1000 * 30)public void reportCurrentTime(){System.out.println ("Scheduling Tasks Examples: The time is now " + dateFormat ().format (new Date()));}//每1分鐘執(zhí)行一次@Scheduled(cron = "0/4 * * * * * ")public void reportCurrentByCron(){System.out.println ("Scheduling Tasks Examples By Cron: The time is now " + dateFormat ().format (new Date ()));}private SimpleDateFormat dateFormat(){return new SimpleDateFormat ("HH:mm:ss");} }

Output:

Scheduling Tasks Examples By Cron: The time is now 12:02:48 Scheduling Tasks Examples By Cron: The time is now 12:02:52 Scheduling Tasks Examples: The time is now 12:02:54 Scheduling Tasks Examples By Cron: The time is now 12:02:56 Scheduling Tasks Examples By Cron: The time is now 12:03:00 Scheduling Tasks Examples By Cron: The time is now 12:03:04 Scheduling Tasks Examples By Cron: The time is now 12:03:08 Scheduling Tasks Examples By Cron: The time is now 12:03:12 Scheduling Tasks Examples By Cron: The time is now 12:03:16 Scheduling Tasks Examples By Cron: The time is now 12:03:20 Scheduling Tasks Examples By Cron: The time is now 12:03:24 Scheduling Tasks Examples: The time is now 12:03:24 Scheduling Tasks Examples By Cron: The time is now 12:03:28

Quartz:

使用quartz實(shí)現(xiàn)定時(shí)任務(wù)。
　　Quartz設(shè)計(jì)者做了一個(gè)設(shè)計(jì)選擇來(lái)從調(diào)度分離開(kāi)作業(yè)。Quartz中的觸發(fā)器用來(lái)告訴調(diào)度程序作業(yè)什么時(shí)候觸發(fā)。框架提供了一把觸發(fā)器類型，但兩個(gè)最常用的是SimpleTrigger和CronTrigger。

? ? ? ?SimpleTrigger為需要簡(jiǎn)單打火調(diào)度而設(shè)計(jì)。典型地，如果你需要在給定的時(shí)間和重復(fù)次數(shù)或者兩次打火之間等待的秒數(shù)打火一個(gè)作業(yè)，那么SimpleTrigger適合你。另一方面，如果你有許多復(fù)雜的作業(yè)調(diào)度，那么或許需要CronTrigger。
? ? ? ?CronTrigger是基于Calendar-like調(diào)度的。當(dāng)你需要在除星期六和星期天外的每天上午10點(diǎn)半執(zhí)行作業(yè)時(shí)，那么應(yīng)該使用CronTrigger。正如它的名字所暗示的那樣，CronTrigger是基于Unix克隆表達(dá)式的。

?

http://blog.csdn.net/github_34889651/article/details/52586234

https://my.oschina.net/hhaijun/blog/698498

http://www.jianshu.com/p/67c760de79d5

http://blog.csdn.net/loongshawn/article/details/52078134

http://www.cnblogs.com/lic309/p/4089633.html

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