是否有一个java类用于使用日期构建cron表达式？ [英] Is there a java class for constructing a cron expression using a date?

问题描述

我需要基于来自表单的用户输入来构建cron表达式。所以我有一个日期选择器和一个选择框来选择频率。我可以从这个足够容易地构建一个cron表达式，但感觉像我是重新发明的轮子。有没有合适的类来为我做这个？使用类似

I need to build a cron expression based on user input from a form. So I have a datepicker and a select box to choose the frequency. I can build a cron expression from this easily enough, but it feels like I am reinventing the wheel. Is there a suitable class to do this for me? Something with a method like

public String cron(String frequency, Calendar nextRunTime);

推荐答案

我认为quartz的Cron-为你，但你必须做一些编程，使其工作。 （ http://www.quartz-scheduler.org/docs/tutorials/crontrigger .html ）

I think the Cron-functionality in quartz could provide this for you, but you do have to do some programming to make it work. (http://www.quartz-scheduler.org/docs/tutorials/crontrigger.html)

这是如果我正确理解您的问题。

This is if I understand your question correctly.

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