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Spring boot - Issue in invoking Shutdownhook

When i try to shutdown the spring boot application using ctrl+c or using process id using below script.. Shutdown hook is not invoked. Require some solution to invoke the shutdown hook both in windows and linux.

Shutdown script:

SET /P PID_FROM_FILE= < application.pid
taskkill /pid %PID_FROM_FILE% /f


Gracefulshutdown hook class:

@Component
public class GracefulShutdownHook

private static final Logger LOGGER = LogManager.getLogger (GracefulShutdownHook.class);

@Autowired
@Qualifier("inboundChannel")
MessageChannel inboundChannel;

@Autowired
@Qualifier("pollingExecutor")
ThreadPoolTaskExecutor pollingExecutor;

@PreDestroy
public void onDestroy() throws Exception
// First stop the file integration adapter to process files
inboundChannel.send(new GenericMessage<String> "@'filesInChannel.adapter'.stop()"));
// wait till current processing of files is over
pollingExecutor.shutdown();
LOGGER.log(Level.INFO, "Application shutdown succesfully");

@Bean
public ExitCodeGenerator exitCodeGenerator()
return () -> 0;




1 Answer
1

You can not handle ctrl-c nor taskkill inside your Spring application.

ctrl-c

taskkill

The one of ways you can appropriately shut down your application is to create endpoint POST /shutdown and call applicationContext.close() inside it:

POST /shutdown

applicationContext.close()

@RestController
public class Shutdowner

@Autowired
ApplicationContext ctx;

@PostMapping("/shutdown")
public void shutdown()
ctx.close();




More examples can be found here: https://www.baeldung.com/spring-boot-shutdown

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