Spring Data JPA Query By Example: Write 10x Less Code for Dynamic Searches

Tired of writing endless custom repository methods for your Spring Boot applications? In this tutorial, I'll show you how Query By Example (QBE) can revolutionize the way you handle dynamic database searches. Whether you're building a search form with multiple filters or need flexible querying capabilities, QBE is about to become your new best friend! 🚀 In this comprehensive tutorial, we'll build a complete Spring Boot application that demonstrates the power of Query By Example. I'll walk you through every step, from basic setup to advanced implementation, showing you how to eliminate boilerplate code and create clean, maintainable search functionality. What You'll Learn: • How to implement Query By Example in Spring Data JPA • Techniques for creating dynamic searches without custom repository methods • Best practices for building flexible database queries • Advanced QBE features like ExampleMatcher and custom matching rules • Integration with PostgreSQL using Docker • Real-world examples with employee data management Video Chapters: 00:00 - Introduction & Overview 02:15 - Project Setup with Spring Boot 04:30 - Understanding Query By Example Basics 08:45 - Implementing Your First QBE Query 12:30 - Advanced Query Matching Techniques 16:20 - Working with Multiple Search Criteria 19:45 - Best Practices & When to Use QBE 23:15 - Demo: Building a Search API 27:30 - Testing Your Implementation 31:00 - Final Tips & Conclusion 🔨 Tools & Technologies Used: • Spring Boot 3.3.5 • Java 23 • PostgreSQL • Docker • Maven • Spring Data JPA 📚 Resources: Project Repository: https://github.com/danvega/qbe Spring Data Documentation: https://docs.spring.io/spring-data/jpa/docs/current/reference/html/ Docker Installation: https://docs.docker.com/get-docker/ 💬 Leave a comment below if you have any questions or suggestions for future tutorials! 👋🏻Connect with me: Website: https://www.danvega.dev Twitter: https://twitter.com/therealdanvega Github: https://github.com/danvega LinkedIn: https://www.linkedin.com/in/danvega Newsletter: https://www.danvega.dev/newsletter SUBSCRIBE TO MY CHANNEL: http://bit.ly/2re4GH0 ❤️