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

问题描述

Spring Boot 允许您像这样创建后台类似 cron"的任务:

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
    }
}

这使得自动化集成测试有点困难！我不应该有一个运行集成测试只是挂一个小时，等待看看当我的任务在一个小时的顶部运行时会发生什么.我也不应该等到接近小时才运行我的测试，这样我就可以在接近小时确认正确的行为！

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!

有没有办法让这些 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，我可以安排 MyTask#doSomething() 方法运行，例如，每 30 秒等.

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

你可以像这样配置 cron 表达式

You can make the cron expression configurable like this

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

您可以从您的 application.properties 文件中为 dev/prod 配置文件设置此值.在测试模式下，您可以使用配置文件特定的属性文件将其设置为您想要的任何值，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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