About the Author

Hi, I'm ずこー, the author of Spring Boot 123.
I work daily as a backend engineer on enterprise systems — building, maintaining, and performance-tuning Web APIs with Spring Boot.

What This Site Is For

Spring Boot is widely used in production, but for newcomers it can be hard to see why a setting is needed or where things tend to go wrong.
This site explains not just what to do, but the reasoning behind it — so you can make confident decisions in real projects.

Editorial Policy

  • All explanations are grounded in official documentation and hands-on experience, with reproducible steps.
  • Code examples aim to be the smallest working configuration that demonstrates the concept.
  • Configuration values come with explanations, and production concerns (error handling, monitoring, security) are addressed where relevant.
  • Errors are corrected promptly once identified.

Who This Is For

  • Developers new to Spring Boot
  • Engineers with Java/Spring basics who want confidence in real-world design decisions
  • Teams looking for maintainable implementation patterns

Update Policy

Major articles are reviewed periodically and updated to reflect new Spring Boot and Java releases.
Outdated information is corrected or annotated, and an updated date is shown separately from the original publication date when content changes.

Contact

For questions or corrections about article content, please reach out at:
[email protected]

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