在 spring boot 中发送成功响应后调用另一个服务？

Question

The first controller is sending the success response after that it will call another method after sending the response.

I need to call m1()method after return the response

    @RequestMapping(value = {"/hello"}, method = POST, produces = { "application/json" })
        public Response getAllData(@RequestBody String request){

            return new ResponseEntity<>("Hello World");
        }

    public void m1(){

    }

Answer 1

The simple trick is to use try...finally.

try{
  return new Response();
} finally {
  //do after actions
}

'finally' will always execute after the try block no matter there is a return statement in it.

Answer 2

Example for the Spring AspectJ using @AfterReturning advice

@Aspect
@Component
public class A {

  /*
   * AfterReturning advice
   */
  @AfterReturning("execution(* com.package.ClassName.getAllData(..))")
  public void m1(JoinPoint joinPoint) {


  }
}

Answer 3

You need to add @EnableAsync in your configuration class or main class then create another service class encapsulating an Async method m1

In your class add the statement below:

asyncServiceImpl.m1();

@Service 
public class AsyncServiceImpl {

   @Async
   public CompletableFuture<String> m1() {
        // Your logic here
        return CompletableFuture.completedFuture(String.valueOf(Boolean.FALSE));
   }
}

Answer 4

you can use eventListener for creating event. And catch it in public method with EventListener annotation. https://www.baeldung.com/spring-events

Answer 5

The most simple and reliable way - run a thread. Try-final isn't good at all.