JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

Publish Your Article Here

How to schedule jobs using @Scheduled annotation in spring?


In spring, scheduling jobs are very easy using @Scheduled annotation. The @Scheduled annotation can be added to a method along with trigger metadata. @Scheduled annotation has 3 trigger metadata. They are:

fixedDelay: Incase, if you specify fixed delay as 5 seconds, then the annotated method would be invoked at every 5 seconds with a fixed delay, meaning that the period will be measured from the completion time of each preceding invocation.

fixedRate: Incase, if you specify fixed rate as 5 seconds, then the annotated method would be executed every 5 seconds measured between the successive start times of each invocation.

cron: It supports cron expression.

Examples are given for all above cases. Before annotating any method with @Scheduled, make sure that you are making below given xml based configurations. Add task:annotation-driven tag and also register your job bean where your annotated methods are presented.

<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:task="http://www.springframework.org/schema/task"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
	http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
	http://www.springframework.org/schema/task 
	http://www.springframework.org/schema/task/spring-task-3.0.xsd">

    <task:annotation-driven />
    
    <bean id="myAppScheduleJobs" class="com.java2novice.jobs.InventoryPullerJob" />
	
</beans>

Here is the example for the fixed delay, the time should be specified in milli seconds.

package com.java2novice.jobs;

import org.springframework.scheduling.annotation.Scheduled;

public class InventoryPullerJob {

	@Scheduled(fixedDelay=5000)
	public void updateEmployeeInventory(){
		System.out.println("Started fixed delay job");
		/**
		 * add your scheduled job logic here
		 */
	}
}

Here is the sample code for fixedRate.

package com.java2novice.jobs;

import org.springframework.scheduling.annotation.Scheduled;

public class InventoryPullerJob {

	@Scheduled(fixedRate=5000)
	public void updateEmployeeInventory(){
		System.out.println("Started fixed rate job");
		/**
		 * add your scheduled job logic here
		 */
	}
}

Incase if you want to make an initial delay to start the job, you can specify "initialDelay". If you specify this value, the the very first time job will be started after the given delay. In the below example, the method is scheduled to run at every hour with initial start delay as 10 minutes.

package com.java2novice.jobs;

import org.springframework.scheduling.annotation.Scheduled;

public class InventoryPullerJob {

	@Scheduled(fixedRate=60*60*1000, initialDelay=10*60*1000)
	public void updateEmployeeInventory(){
		System.out.println("Started fixed rate job");
		/**
		 * add your scheduled job logic here
		 */
	}
}

Here is the sample code for cron. You can use cron expression in the annotation.

package com.java2novice.jobs;

import org.springframework.scheduling.annotation.Scheduled;

public class InventoryPullerJob {

	@Scheduled(cron="*/2 * * * * MON-FRI")
	public void updateEmployeeInventory(){
		System.out.println("Started cron job");
		/**
		 * add your scheduled job logic here
		 */
	}
}
<< Previous Program | Next Program >>

Spring framework examples

  1. Spring 3 hello world example
  2. Spring bean java based configuration using @Configuration and @Bean
  3. How to get spring application context object reference?
  4. How to load multiple spring bean configuration files?
  5. Spring java based configuration @Import example
  6. Spring Dependency Injection and Types
  7. Spring Dependency Injection via setter method
  8. Spring Dependency Injection via Constructor
  9. Constructor overloading issue with spring constructor injection
  10. Constructor vs Setter dependency Injection in Spring
  11. How to inject value into spring bean instance variables?
  12. Spring bean tag properties
  13. Differen types of spring bean scopes
  14. How to inject inner bean in spring?
  15. Set spring bean scope using annotation
  16. How to invoke spring bean init and destroy methods?
  17. Spring bean initialization callback
  18. Spring bean destruction callback
  19. Configure default initialization and destroy method in all spring beans
  20. Spring bean init and destroy methods using annotations
  21. Spring Bean Post Processors
  22. How to read property file in spring using xml based configuration file?
  23. How to read property file in spring 3.0 using java based configuration?
  24. How to inject date into spring bean property?
  25. How to inject date into spring bean with CustomDateEditor?
  26. Spring bean inheritance configuration
  27. Spring dependency checking with @Required annotation
  28. How to define a custom Required-style annotation for dependency checking?
  29. How to inject List into spring bean?
  30. How to inject Set into spring bean?
  31. How to inject Map into spring bean?
  32. How to enable auto component scanning in spring?
  33. Difference between @Component, @Service, @Repository and @Controller
  34. How to filter components in auto scanning?
  35. Spring expression language basic example using xml based configuration.
  36. Spring expression language basic example using annotations.
  37. Bean reference example using spring expression language
  38. Spring expression language operators example
  39. Spring expression language ternary operator example
  40. How to use regular expressions with spring expression language?
  41. How to use collections with spring expression language?
  42. Spring bean auto-wiring modes
  43. Spring auto-wiring mode byName
  44. Spring auto-wiring mode byType
  45. Spring auto-wiring mode constructor
  46. Spring auto-wiring using @Autowired annotation example
  47. Spring auto-wiring using @Qualifier annotation example
  48. Spring log4j configuration
  49. How to schedule jobs using @Scheduled annotation in spring?
  50. Send E-mail using spring 3
  51. Send E-mail with attachment using spring 3
  52. Simple spring JDBC example
  53. Spring JDBC example with JdbcTemplate
  54. Spring JDBC example with JdbcDaoSupport
  55. Spring JDBC query example using JdbcDaoSupport
  56. How to query single column using spring JdbcTemplate?
  57. Spring JDBC batch updates using JdbcTemplate?
  58. Spring AOP Advices - Before advice example - xml based configuration
  59. Spring AOP Advices - After returning advice example - xml based configuration
  60. Spring AOP Advices - After throwing advice example - xml based configuration
  61. Spring AOP Advices - Around advice example - xml based configuration
  62. Spring AOP Advice - Pointcuts – Name match example
  63. Spring AOP Advice - Pointcuts – Regular expression example
  64. Spring AOP - AspectJ - @Before example
  65. Spring AOP - AspectJ - @After example
  66. Spring AOP - AspectJ - @AfterReturning example
  67. Spring AOP - AspectJ - @AfterThrowing example
  68. Spring AOP - AspectJ - @Around example
Knowledge Centre
Exception Vs Error
An error is an irrecoverable condition occurring at runtime like out of memory error. These kind of jvm errors cannot be handled at runtime. Exceptions are because of condition failures, which can be handled easily at runtime.
Famous Quotations
Never argue with a fool, onlookers may not be able to tell the difference.
-- Mark Twain

About Author

I'm Nataraja Gootooru, programmer by profession and passionate about technologies. All examples given here are as simple as possible to help beginners. The source code is compiled and tested in my dev environment.

If you come across any mistakes or bugs, please email me to [email protected].

Most Visited Pages

Other Interesting Sites

Reference: Java™ Platform Standard Ed. 7 - API Specification | Java™ Platform Standard Ed. 8 - API Specification | Java is registered trademark of Oracle.
Privacy Policy | Copyright © 2022 by Nataraja Gootooru. All Rights Reserved.