Spring @Scheduled Keywords

Note: In this example we are using the Spring 4.2.5 version.

to modify a label in the spring context file:

Increase Xmlns tag:xmlns:task=http://www.springframework.org/schema/task

to modify the Xsi:schemalocation label, add the following:

Http://www.springframework.org/schema/task

Http://www.springframework.org/schema/task/spring-task-4.2.xsd

Increase task scanning:

<task:annotation-driven/>

The XML is as follows:

<?xml version= "1.0" encoding= "UTF-8"?>

<beansxmlns= "Http://www.springframework.org/schema/beans"

xmlns:context= "Http://www.springframework.org/schema/context"

Xmlns:xsi=http://www.w3.org/2001/xmlschema-instancexmlns:jaxws= "Http://cxf.apache.org/jaxws"

xmlns:tx= "Ttp://www.springframework.org/schema/tx"

Xmlns:mvc= "Http://www.springframework.org/schema/mvc"

xmlns:aop= "TTP://WWW.SPRINGFRAMEWORK.ORG/SCHEMA/AOP"

Xmlns:util= "Http://www.springframework.org/schema/util"

xmlns:task= "Http://www.springframework.org/schema/task"

Xsi:schemalocation= "Http://www.springframework.org/schema/beans

Http://www.springframework.org/schema/beans/spring-beans-4.2.xsd

Http://www.springframework.org/schema/context

Http://www.springframework.org/schema/context/spring-context-4.2.xsd

Http://cxf.apache.org/jaxws

Http://cxf.apache.org/schemas/jaxws.xsd

Http://www.springframework.org/schema/tx

Http://www.springframework.org/schema/tx/spring-tx-4.2.xsd

Http://www.springframework.org/schema/mvc

Http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd

Http://www.springframework.org/schema/util

Http://www.springframework.org/schema/util/spring-util-4.2.xsd

Http://www.springframework.org/schema/aop

Http://www.springframework.org/schema/aop/spring-aop-4.2.xsd

Http://www.springframework.org/schema/task

http://www.springframework.org/schema/task/spring-task-4.2.xsd">

<context:component-scanbase-package= "com"/>

<task:annotation-driven/>

<context:annotation-config/>

</beans>

Implementing class Usage annotations @Component as a comment

Java instance:

@Component

public class Cron {

@Scheduled (cron= "0 0 * * * *?")

Publicvoid Runtaskperhour () {

System.out.println ("0 minutes and 0 seconds per hour :" + new Date ());

}

@Scheduled (Fixedrate= 5000)

Publicvoid Runtaskperfivesecond () {

System.out.println ("Execute now, execute once every 5 seconds:" + new Date ());

}

@Scheduled (fixedrate=, initialdelay = 10000)

Publicvoid Runtaskperfiveseconddelay () {

SYSTEM.OUT.PRINTLN (" delay of ten seconds execution, executed once every 5 seconds:" + new Date ());

}

}

The following reference Iteye

Cron Introduction:

a cron expression has at least 6 time elements separated by a space.

In order of

1. seconds (0~59)

2. minutes (0~59)

3. hours (0~23)

4. Day (month) (0~31, but you need to consider the number of days of your month)

5. month (0~11)

6. Day (week) (1~7 1=sun or SUN,MON,TUE,WED,THU,FRI, SAT)

each of these elements can be a value ( e.g. 6), a continuous interval (9-12), a time interval (8-18/4) (/ = every 4 hours ), a list (1,3,5), a wildcard character. Because the " date in the month " and " date in the week " are mutually exclusive, one of the two elements must be set .

"0 0 10,14,16 * *?" every morning , 2 p.m. ,4 o ' clock.

"0 0/30 9-17 * *?" every half hour for nine to five working hours

"0 0 12?" * WED " means every Wednesday noon .

"0 0 12 * *?" Trigger every day at noon .

"0 15 10?" * * " every morning 10:15 trigger

"0 * 14 * *?" Every 1 minutes at 2 pm to 2:59 pm .

"0 0/5 14 * *?" Every 5 minutes at 2 pm to 2:55 pm .

"0 0/5 14,18 * *?" Every 5 minutes during the afternoon from 2 to 2:55 and 6 pm to 6:55 .

"0 0-5 14 * *?" Every 1 minutes at 2 pm to 2:05 pm .

"0 10,44 14?" 3 WED "2:10 and 2:44 triggered every March Wednesday of the afternoon

"0 15 10?" * Mon-fri " Monday to Friday morning 10:15 trigger

"0 15 10 15 *?" monthly morning 10:15 trigger

"0 L *?" 10:15 Trigger on the last day of the month

Spring @Scheduled Keywords