This project demonstrates fundamental concepts of Java, Spring Boot, and MySQL by creating a simple application that interacts with a relational database.

Key Features:

• Spring Boot: Leverages the Spring Boot framework for rapid application development, including dependency injection, auto-configuration, and embedded servers.
• MySQL: Utilizes MySQL as the underlying database for data storage and retrieval.
• JPA and Hibernate: Employs Java Persistence API (JPA) and Hibernate as the Object-Relational Mapping (ORM) layer to interact with the database using Java objects.
• CRUD Operations: Implements core CRUD (Create, Read, Update, Delete) operations on a chosen entity (e.g., a User, Product) through a RESTful API.
• RESTful API: Exposes endpoints (e.g., GET, POST, PUT, DELETE) for interacting with the data using HTTP requests.

Technical Steps:

1. Project Setup:

   • Create a Spring Boot project using Spring Initializr.
   • Use Java version 17 or higher and Maven.
   • Add dependencies for:
     • Spring Web
     • Spring Data JPA
     • MySQL Driver
     • Lombok

2. Project Setup (After Cloning):

   • Run mvn clean install in the terminal to download all dependencies.

3. Database Setup:

   • Create a database named newdb using the following SQL command:

     create database newdb abcd;

   • Important: Update the username and password in the application.properties file with your MySQL credentials.

4. Run the Application:

   • Start the Spring Boot application using your preferred IDE or by running mvn spring-boot:run in the terminal.

5. Explore and Experiment:

   • Use a tool like Postman to interact with the exposed RESTful endpoints.
   • Test the CRUD operations using Postman.
   • Modify the entity, service, and controller classes to explore different functionalities.

Getting Started with Postman:

1. Install Postman: https://www.getpostman.com/
2. Create a new collection for your project.
3. Create Operation:
   • Set the request method to POST.
   • Set the URL to http://localhost:8080/addStd (assuming the application runs on port 8080).
   • In the Body tab, select raw and set the content type to application/json.
   • Provide a JSON object representing the student data you want to create

     {"name": "John Doe","mark": 30}

   • Send the request.
4. Read Operation:
   • Set the request method to GET.
   • Set the URL to http://localhost:8080/getAllData to retrieve all students.
   • You can also use http://localhost:8080/getStdById/{id} to retrieve a specific student by ID, replacing {id} with the actual student ID.
   • Send the request.
5. Update Operation:
   • Set the request method to PUT.
   • Set the URL to http://localhost:8080/updStd.
   • In the Body tab, provide a JSON object representing the updated student data.
   • Send the request.
6. Delete Operation: (Not implemented in this example project):
   • You can implement a DELETE endpoint to remove students from the database. Refer to Spring Data JPA documentation for guidance.

This project provides a solid foundation for understanding core Spring Boot concepts and building more complex applications with database interactions. Result

Student database:

Spring Starting:

Post student data in database using postman:

Get Student data by ID in postman:

Note:

• This README file provides a basic overview. For detailed instructions and implementation specifics, refer to the project's source code and comments.
• This project is intended for educational and learning purposes.

I hope this enhanced README file is more informative and appealing!