AlbertYang0801 opened a new pull request, #3777:
URL: https://github.com/apache/hertzbeat/pull/3777
## What's changed?
Monitoring Center - Added cron expression support for scheduling type in
add/edit monitor forms, with full backward compatibility.
For details:
- [x] 1. Added a scheduler type selector on the task configuration page with
two options: "Second Interval" (default) and "Cron Expression". When "Cron
Expression" is selected, the input field dynamically switches to a Cron
expression input with syntax guidance.
- [x] 2. Implemented real-time frontend validation for Cron expressions to
ensure correctness.
- [x] 3. The monitoring task cycle display now supports Cron expressions.
- [x] 4. For tasks using Cron expressions, the system now uses Quartz to
parse expressions and accurately calculate the next trigger time.
- [x] 5. Enhanced internationalization support for updated UI text to ensure
proper display in multilingual environments.
**scheduling type**
- Second Interval
<img width="2126" height="1186" alt="PixPin_2025-09-19_13-48-50"
src="https://github.com/user-attachments/assets/460aa0ca-af94-4850-ba9c-be94654dbd44";
/>
<img width="2530" height="1179" alt="PixPin_2025-09-19_13-49-27"
src="https://github.com/user-attachments/assets/d5919324-2257-43e7-aabf-0aec08efb218";
/>
- Cron Expression
<img width="2527" height="1171" alt="PixPin_2025-09-19_13-49-51"
src="https://github.com/user-attachments/assets/48949257-30ba-4966-8bf0-9583749f81fc";
/>
<img width="2520" height="1243" alt="PixPin_2025-09-19_13-49-08"
src="https://github.com/user-attachments/assets/32a85ff9-050e-4259-b2ff-ac68d5e6ca8a";
/>
## Checklist
- [x] I have read the [[Contributing
Guide](https://hertzbeat.apache.org/docs/community/code_style_and_quality_guide)](https://hertzbeat.apache.org/docs/community/code_style_and_quality_guide)
- [ ] I have written the necessary doc or comment.
- [x] I have added the necessary unit tests and all cases have passed.
## Add or update API
- [] I have added the necessary [[e2e
tests](https://github.com/apache/hertzbeat/tree/master/e2e)](https://github.com/apache/hertzbeat/tree/master/e2e)
and all cases have passed.
I have configured `35 * * * * ?` . According to the monitoring history
chart, metrics are collected after the 35th second.
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