Unix Cron ↔ Quartz / Spring Cron 相互変換 技術仕様ガイド
Linux標準の5桁CronとJava Quartz / Springの6〜7桁Cronスケジュール式を双方向に相互変換し、日本語で実行周期を解説します。
Presets:
Unix標準Cron (5フィールド)
Syntax: [Minute] [Hour] [Day of Month] [Month] [Day of Week] Quartz / Spring Cron (6〜7フィールド)
Syntax: [Sec] [Min] [Hour] [Day of Month] [Month] [Day of Week] [Year?]フィールド構成詳細 (Quartz Structure)
秒0
分*/15
時*
日 (月内)?
月*
曜日*
スケジュール実行周期の解説
Executes every 15 minutes.
Spring & Quartz Compatible
Produces 100% compliant Java Quartz and Spring Boot @Scheduled cron definitions including mandatory ? resolution.
Bi-Directional Conversion
Modify either the standard 5-field Linux expression or the 6-field Java scheduler format with live synchronized updates.
Zero Cloud Compute
Cron tokenizer, day-of-week index shifting (Linux 0 vs Quartz 1), and explanation heuristics execute purely in-browser.