Caching in Spring Boot

Caching is an effective way to improve application performance by storing frequently used data in memory so that it can be retrieved faster. Spring offers a simple, declarative caching mechanism that can be applied to your methods using the @Cacheable, @CachePut, and @CacheEvict annotations.

Why Use Caching?

• Performance Boost: Reduce load on databases and external services by storing the results of expensive operations.
• Scalability: Handle higher traffic with lower latency by retrieving frequently accessed data from the cache.
• Easy to Implement: Spring simplifies caching with minimal configuration, so you don’t have to manually manage cache storage or retrieval.

Example Scenario

Imagine you have a service that fetches user data from a database. Since the user data doesn’t change often, you can cache it to avoid repeated database hits.

Step-by-Step Example

1. Enable Caching in Your Application

First, you need to enable caching by adding @EnableCaching in your Spring Boot application class or any configuration class.

import org.springframework.boot.SpringApplication;
import…