Spring Boot FAQ: Top Questions

Spring Boot supports caching abstraction which can be backed by various providers like EhCache, Redis, or simple memory cache.

🗺️ Setup:

1. Enable caching using @EnableCaching.
2. Use @Cacheable, @CachePut, @CacheEvict annotations.

📥 Example:

@Cacheable("books")
public Book findBookById(String id) {
  simulateSlowService();
  return bookRepository.findById(id);
}

🏆 Expected Output:

Subsequent calls return cached data without delay.

🛠️ Use Cases:

• Improving performance by reducing repeated calls.
• Caching frequently accessed data like product lists or settings.