使Spring Boot cron任务可配置 [英] Making Spring Boot cron tasks configurable

问题描述

Spring Boot允许您创建后台类似cron的任务，如下所示：

Spring Boot allows you to create background "cron-like" tasks like so:

@Component
public class MyTask {
    // Every hour on the hour
    @Scheduled(cron = "0 0 0/1 1/1 * ? *")
    public void doSomething() {
        // blah whatever
    }
}

这使得自动集成测试成为可能有点困难！我不必将运行集成测试挂一个小时，而不必等待我的任务在每小时的顶部运行时会发生什么。我也不必等待近一个小时来运行测试，以便可以在一个小时内确认正确的行为！

This makes automated integration testing a wee bit difficult! I shouldn't have to have a running integration testing just hanging for an hour, waiting to see what happens when my task runs at the top of the hour. Nor should I have to wait to run my test near the hour so that I can confirm proper behavior at the top of the hour!

有没有办法使这些 cron 值可配置？这样，如果我想在测试模式下运行我的应用程序，就可以安排 MyTask＃doSomething （）方法，例如每30秒运行一次，等等。

Is there a way to make these cron values configurable? That way if I want to run my app in "test mode" I could schedule the MyTask#doSomething() method to run, say, every 30 seconds, etc.

推荐答案

可以像这样配置cron表达式

You can make the cron expression configurable like this

@Scheduled(cron ="${some.trigger}") 

您可以在 application.properties 文件中为dev / prod设置此值个人资料。在测试模式下，您可以使用特定于配置文件的属性文件将此值设置为所需的任何值，例如 application-test.properties

You can set this value from your application.properties file for dev/prod profiles. In test mode you can set this to whatever value you want using profile specific properties file, for example application-test.properties

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