Spring Boot + MySQL Integration | Connect REST API to Database | Spring Data JPA Explained (Part 3)

Описание: Welcome back to the Spring Boot Series – Beginner to Job Ready!
In Part 3, we upgrade our backend by connecting our Spring Boot CRUD REST API to a real MySQL database using Spring Data JPA, Hibernate, and ORM.
You’ll learn how JPA maps Java objects to database tables, and how our API creates, saves, and fetches data from MySQL with clean and production-ready code.
This step transforms your project from basic to scalable, real-world backend development.

📌 Topics Covered
✅ Spring Boot MySQL integration tutorial
✅ Spring Data JPA explained
✅ Hibernate ORM explained
✅ CRUD API development step-by-step
✅ Java backend development
✅ Repository layer, Service layer, Controller layer
✅ Entity class creation using JPA annotations
✅ application.properties MySQL configuration
✅ Backend project setup for beginners
✅ REST API development using Spring Boot

code application.yml:
spring:
application:
name: part1

datasource:
url: jdbc:mysql://localhost:3306/YTPart1
username:
password:
driver-class-name: com.mysql.cj.jdbc.Driver
#
jpa:
show-sql: true
hibernate:
ddl-auto: update
naming:
physical-strategy: org.hibernate.boot.model.naming.PhysicalNamingStrategyStandardImpl
properties:
hibernate:
dialect: org.hibernate.dialect.MySQLDialect
format_sql: true
globally_quoted_identifiers: true

In this video, you’ll learn:
✔️ How to set up and create a MySQL database (Workbench, XAMPP, or phpMyAdmin)
✔️ How to add MySQL Connector/J to create a bridge between Java & MySQL
✔️ How Spring Data JPA + Hibernate automatically generate queries
✔️ How Java classes are converted into actual database tables
✔️ How to insert, update, delete & fetch real data from MySQL
✔️ Why JPA makes database operations easier, cleaner, and faster

By the end of this part, your Spring Boot project will be fully connected to a permanent database, ensuring your data stays safe even after server restarts.

This episode is ideal for beginners, students, and anyone preparing for Java backend developer interviews or building real-world projects.

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