Spring Boot Redis Cache — @Cacheable Complete Guide

🚀 Introduction

Caching is a crucial technique for optimizing application performance by reducing the number of redundant database queries. Spring Boot provides a seamless caching mechanism using the @Cacheable annotation, and Redis is one of the most powerful cache providers for handling high-performance caching in distributed applications.

This guide will walk you through implementing Spring Boot Redis Cache using @Cacheable, covering step-by-step setup, integration, and testing.

Imagine you run an e-commerce application, and every time a user visits a product page, the system fetches product details from the database. If thousands of users request the same product, database queries skyrocket, slowing down performance.

Solution? ✅ Spring Boot’s @Cacheable annotation!

Caching stores frequently accessed data in memory, reducing database calls and boosting performance. In this guide, we’ll cover how to:

✔ Use @Cacheable to store method results
✔ Configure Spring Boot caching
✔ Implement caching in a real-world application

1️⃣ What is @Cacheable in Spring Boot?

The @Cacheable annotation stores method results in a cache. When the same method is called again with the same parameters, the system returns the cached data instead of executing the method.