Answer Spring Boot and Thymeleaf engineering questions
Overview
This question evaluates a developer's competency with Spring Boot and Thymeleaf, covering debugging memory and session issues, designing dependency structure, standardizing logging, managing environments, applying accessibility improvements, using request lifecycle hooks, implementing pagination and sorting, and handling complex form validation and view resolution. It is commonly asked in the Software Engineering Fundamentals domain to assess practical backend and full‑stack engineering abilities, testing both conceptual understanding of framework mechanisms and architectural trade-offs as well as practical application for maintainability and operational robustness.
Spring Boot + Thymeleaf (Engineering Questions)
Answer the following interview questions with concrete debugging steps, best practices, and design choices:
- Memory growth: If many beans are application-scoped (singleton) and memory keeps growing over time, what could be wrong?
- Dependency structure: How would you design a clean and maintainable dependency structure in a Spring Boot + Thymeleaf application?
- Logging consistency/searchability: If teams log in different ways and logs are hard to search, how would you fix it?
- Environment management: How do you safely manage different environments (dev/QA/prod) in Spring Boot?
- Elderly-friendly UX: For an elderly-friendly Spring Boot + Thymeleaf app, what UX/accessibility improvements would you use?
- Session loss across secure pages: If users lose sessions / get logged out when switching secure pages, how would you debug and fix it?
- Hook after controller, before view render: If you need to run logic after request handling but before rendering the response, what Spring mechanism would you use?
- Pagination + sorting: How would you build a product list page with pagination and sorting in Spring Boot?
- Complex form validation: A form has complex validation rules—what steps ensure maintainability and good UX?
- Implicit navigation: How does implicit navigation / view resolution work, and what considerations apply when using it?
Solution
Login required