Question

 Main class


@ComponentScan
@EnableAutoConfiguration
@SpringBootApplication
public class LearnAsynchronousApplication {

    public static void main(String[] args) {
        SpringApplication.run(LearnAsynchronousApplication.class, args);
        System.out.println("LearnAsynchronous is running");
    }
}

Controller Class

@RestController
@RequestMapping("/")
public class LearnRestAsyncController {

    @Autowired
    private LearnAsyncService learnasyncService;

    @RequestMapping (value= "async/{name}",method=RequestMethod.GET)
    public ResponseEntity<String> getAsyncMsg(@PathVariable String name)throws InterruptedException, ExecutionException {
        String msg=learnasyncService.getAsyncMsg(name).get();
        return new ResponseEntity<String>(msg,HttpStatus.OK);
    }

    @RequestMapping (value="log", method=RequestMethod.POST)
    public ResponseEntity<Void> logMsg()throws InterruptedException, ExecutionException{
    learnasyncService.logMsg();
    return new ResponseEntity<Void>(HttpStatus.OK);
    }


}

Service class

package Train.LearnAsync.LearnAsynchronous.service;

import java.util.Date;
import java.util.concurrent.Future;

import org.springframework.scheduling.annotation.Async;
import org.springframework.scheduling.annotation.AsyncResult;
import org.springframework.stereotype.Service;

@Service
public class LearnAsyncServiceImpl implements LearnAsyncService {

    @Async
    @Override
    public Future<String> getAsyncMsg(final String name) throws InterruptedException{
        System.out.println("Execute method Asynchronously. " + Thread.currentThread().getName());
        Thread.sleep(10000);
        System.out.println("---------thread done");
        return new AsyncResult<String> ("Hello! Good Morning. " + name);
    }

    @Async
    @Override
    public void logMsg(){
        System.out.println("Execute method Asynchronously." + Thread.currentThread().getName());
        System.out.println("Today's Date." + new Date());
    }
}

Config Class(@EnableAsync given here)

@EnableAsync
@Configuration
public class SpringAsyncConfigurer implements AsyncConfigurer {

    @Override
    public Executor getAsyncExecutor() {
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        executor.setCorePoolSize(10);
        executor.setMaxPoolSize(25);
        executor.setQueueCapacity(100);
        executor.initialize();
        return executor;
    }


    @Override
    public AsyncUncaughtExceptionHandler getAsyncUncaughtExceptionHandler() {
        // TODO Auto-generated method stub
        return new CustomAsyncExceptionHandler();
    }

}

任何人都可以建议如何立即返回结果，async而不是   工作，如果我打电话给它等待完成这个洞   进程，之后只返回结果..

一旦从邮递员http://localhost:8080/async/xyz点击此网址   等待完成该过程，但@async优势是线程不应该等待完成。它应该立即返回结果。

等待有价值的建议

@Async进程在执行时不立即给出结果

0 个答案: