在 Spring Boot IntegrationTest 上禁用 @Schedule

问题描述

如何在 Spring Boot IntegrationTest 上禁用计划自动启动?

How can I disable the schedule auto-start on Spring Boot IntegrationTest?

谢谢.

推荐答案

请注意，外部组件可能会自动启用调度(参见 HystrixStreamAutoConfiguration 和 MetricExportAutoConfiguration 来自 Spring 框架).因此，如果您尝试在指定 @EnableScheduling 的 @Configuration 类上使用 @ConditionalOnProperty 或 @Profile，那么由于外部组件，无论如何都会启用调度.

Be aware that external components could be enabling scheduling automatically (see HystrixStreamAutoConfiguration and MetricExportAutoConfiguration from the Spring Framework). So if you try and use @ConditionalOnProperty or @Profile on the @Configuration class that specifies @EnableScheduling, then scheduling will be enabled anyway due to external components.

有一个 @Configuration 类可以通过 @EnableScheduling 进行调度，然后将你的调度作业放在单独的类中，每个类都使用 @ConditionalOnProperty 来启用/禁用包含@Scheduled 任务的类.

Have one @Configuration class that enables scheduling via @EnableScheduling, but then have your scheduled jobs in separate classes, each of those using @ConditionalOnProperty to enable/disable the classes that contain the @Scheduled tasks.

不要将 @Scheduled 和 @EnableScheduling 放在同一个类中，否则您将遇到外部组件启用它的问题，因此 @ConditionalOnProperty 被忽略.

Don't have the @Scheduled and @EnableScheduling in the same class, or you will have the issue where external components are enabling it anyway, so the @ConditionalOnProperty is ignored.

例如:

@Configuration
@EnableScheduling
public class MyApplicationSchedulingConfiguration {
}

然后在一个单独的类中

@Named
@ConditionalOnProperty(value = "scheduling.enabled", havingValue = "true", matchIfMissing = false)
public class MyApplicationScheduledTasks {

  @Scheduled(fixedRate = 60 * 60 * 1000)
  public void runSomeTaskHourly() {
    doStuff();
  }
}

这个解决方案的问题是每个计划的作业都需要在它自己的类中，并指定 @ConditionalOnProperty.如果您错过了该注释，那么作业将运行.

The issue with this solution is that every scheduled job needs to be in it's own class with @ConditionalOnProperty specified. If you miss that annotation, then the job will run.

扩展 ThreadPoolTask​​Scheduler 并覆盖 TaskScheduler 方法.在这些方法中，您可以检查作业是否应该运行.

Extend the ThreadPoolTaskScheduler and override the TaskScheduler methods. In these methods you can perform a check to see if the job should run.

然后，在您使用@EnableScheduling 的@Configuration 类中，您还创建一个名为taskScheduler 的@Bean，它返回您的自定义线程池任务调度程序.

Then, in your @Configuration class where you use @EnableScheduling, you also create a @Bean called taskScheduler which returns your custom thread pool task scheduler).

例如:

public class ConditionalThreadPoolTaskScheduler extends ThreadPoolTaskScheduler {

  @Inject
  private Environment environment;

  // Override the TaskScheduler methods
  @Override
  public ScheduledFuture<?> schedule(Runnable task, Trigger trigger) {
    if (!canRun()) {
      return null;
    }
    return super.schedule(task, trigger);
  }

  @Override
  public ScheduledFuture<?> schedule(Runnable task, Date startTime) {
    if (!canRun()) {
      return null;
    }
    return super.schedule(task, startTime);
  }

  @Override
  public ScheduledFuture<?> scheduleAtFixedRate(Runnable task, Date startTime, long period) {
    if (!canRun()) {
      return null;
    }
    return super.scheduleAtFixedRate(task, startTime, period);
  }

  @Override
  public ScheduledFuture<?> scheduleAtFixedRate(Runnable task, long period) {
    if (!canRun()) {
      return null;
    }
    return super.scheduleAtFixedRate(task, period);
  }

  @Override
  public ScheduledFuture<?> scheduleWithFixedDelay(Runnable task, Date startTime, long delay) {
    if (!canRun()) {
      return null;
    }
    return super.scheduleWithFixedDelay(task, startTime, delay);
  }

  @Override
  public ScheduledFuture<?> scheduleWithFixedDelay(Runnable task, long delay) {
    if (!canRun()) {
      return null;
    }
    return super.scheduleWithFixedDelay(task, delay);
  }

  private boolean canRun() {
    if (environment == null) {
      return false;
    }

    if (!Boolean.valueOf(environment.getProperty("scheduling.enabled"))) {
      return false;
    }

    return true;
  }
}

使用我们的自定义调度程序创建 taskScheduler bean 并启用调度的配置类

Configuration class that creates the taskScheduler bean using our custom scheduler, and enables scheduling

@Configuration
@EnableScheduling
public class MyApplicationSchedulingConfiguration {

  @Bean
  public TaskScheduler taskScheduler() {
    return new ConditionalThreadPoolTaskScheduler();
  }
}

上面的潜在问题是您已经创建了对内部 Spring 类的依赖，因此如果将来有更改，您必须修复兼容性.

The potential issue with the above is that you've created a dependency on an internal Spring class, so if there are changes in the future, you'd have to fix compatibility.

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