Question

我需要创建一个监听DatagramSocket的专用线程。过去的做法是在上下文创建过程中创建一个：

@Bean
void beanDef() {
   var thread = new Thread(myRunnable);
   thread.setDaemon(true);
   thread.start();
}

更现代的方法是创建执行程序：

@Bean
Executor() {
   var executor = Executors.newSingleThreadExecutor();
    executor.submit(myRunnable);
}

我应该选哪个？

Answer 1

像这样的事情将是在Spring中启动后台线程的一种现代方式：

@Component
public class MySocketListenerLauncher {

 private ExecutorService executorService;

 @PostConstruct
 public void init() {

  BasicThreadFactory factory = new BasicThreadFactory.Builder()
    .namingPattern("socket-listener-%d").build();

  executorService = Executors.newSingleThreadExecutor(factory);
  executorService.execute(new Runnable() {

   @Override
   public void run() {
    // ... listen to socket ...
   }
  });

  executorService.shutdown();

 }

 @PreDestroy
 public void shutdown() {
  if (executorService != null) {
   executorService.shutdownNow();
  }
 }

}

Answer 2

最好使用@Async批注在后台创建线程。 @EnableAsync注释打开了Spring在后台线程池中运行@Async方法的功能。此类还自定义使用的Executor。

@Configuration
@EnableAsync
public class ThreadConfig {
    @Bean(name = "specificTaskExecutor")
    public TaskExecutor specificTaskExecutor() {
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        executor.initialize();
        return executor;
    }
}

以及以下代码段

@Async("specificTaskExecutor")
public void runFromAnotherThreadPool() {
    System.out.println("You function code here");
}

我希望这会对您有所帮助。

在Spring Boot中分配专用后台线程的最佳方法

2 个答案: