ChatGPT for Java Spring Boot Developers: Build a Spring Boot App with CRUD REST APIs

ChatGPT for Java Developers: In this video, i am gone show you how to build a Spring Boot App with CRUD REST APIs using a single prompt in ChatGPT.

Prompt used in this video shared below:
Task: Build a Spring Boot App with CRUD REST APIs

Prompt:

Act as a professional Java Spring Boot developer.
I want to generate a complete Spring Boot 3.4+ application using Java 21 that implements CRUD REST APIs for a resource called {{EntityName}}.

1. Project Setup
○ Use Spring Boot 3.5+, Java 21, and Maven
○ Add dependencies:
spring-boot-starter-web
spring-boot-starter-data-jpa
Database: MySQL (PostgreSQL or Oracle or H2)
lombok (optional) or records

2. Entity & Data Layer
○ Create a JPA entity named {{EntityName}} with fields: {{fieldList}}
Use @jakarta.persistence annotations (@Entity, @Id, @GeneratedValue)
○ Create {{EntityName}}Repository interface extending JpaRepository

3. Service Layer
Create a {{EntityName}}Service interface with standard CRUD methods
Create {{EntityName}}ServiceImpl implementing the interface
Use @Service annotation
Handle ResourceNotFoundException where needed

4. Controller Layer
○ Create {{EntityName}}Controller annotated with @RestController and @RequestMapping("/api/{{entityPlural}}")
○ Implement REST endpoints:
GET /api/{{entityPlural}} – get all
GET /api/{{entityPlural}}/{id} – get one
POST /api/{{entityPlural}} – create
PUT /api/{{entityPlural}}/{id} – update
DELETE /api/{{entityPlural}}/{id} – delete
○ Use @PathVariable, @RequestBody, and proper HTTP status codes

5. Exception Handling
○ Create a ResourceNotFoundException class
○ Create a global exception handler using @RestControllerAdvice and @ExceptionHandler

6. Configuration
○ Use application.properties for MySQL config (H2 or PostgreSQL)
○ Enable H2 console (optional)

Additional Expectations:
○ Follow layered architecture: controller → service → repository
○ Use ResponseEntity for responses
○ Return standard status codes: 200, 201, 204, 404
○ Use Lombok annotations (@Getter, @Setter, @AllArgsConstructor, @NoArgsConstructor) if applicable
○ Use latest best practices (avoid deprecated APIs)

#chatgpt #java #springboot