CODEWITHSUNDEEP
springspring-mvc
Anoop John
Anoop John

Reputation: 35

How to run background process in spring mvc

I have a spring mvc web-application . It makes the following:

1.Users submit bulk order.

2.Go to success page immediately.

3.send email and sms to user and admin (separate email for each order)

I wish to run step 3 as background process So, how I can do this with spring mvc framework?which is the best technology for this?Thank You in Advance!

Upvotes: 1

Views: 1719

Answers (1)

Ralph
Ralph

Reputation: 120771

The most easy way is to use Spring's @Async support.

Example:

@Service
public class EmailAndSmsService {

   @Async
   public void emailAndSmsService(YourMessage message) {
       //this code runs in an new thread (when Async is enabled).

       //do suff
   }
}

The important point is that you MUST invoke the @Async annotated class from an OHTER bean. (If you invoke it from the same bean (this.emailAndSmsService(...)) then spring can not apply its Async-functionalaty. (You could use real AspectJ compile or loadtime waving to overcome this problem, but this is not the scope of this answer.)

usage

@Controller
public class Controller {

    @Autowired
    private EmailAndSmsService emailAndSmsService;

    @RequestMapping
    public ModelAndView yourControllerMethod(...) {
       ...
       emailAndSmsService(message);  
    }

}

Config:

<task:annotation-driven executor="myExecutor" scheduler="myScheduler"/>
<task:executor id="myExecutor" pool-size="5"/>

@See Spring Reference chapter 33.4.3 The @Async Annotation for more details. Also read the complete Chapter 33.4 Annotation Support for Scheduling and Asynchronous Execution to learn how to enable @Async-support.

An other way to solve the problem would be implementing some queue, where the controller store the messages that should been send, and have a @Scheduled annotated method that send the messages that are in this queue.

Upvotes: 2

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