Generating Spring RESTController Templates

[VINAYAK28x]

Feature: Add Spring Boot REST Controller Generator (spring-controller)

Summary

This PR introduces a new Yeoman sub-generator named spring-controller that allows users to scaffold a basic Spring Boot REST controller with minimal input.

Features

Prompts the user for:

Java package name (e.g., com.example.app)

Controller class name (e.g., GreetingController)

Base endpoint (e.g., /api/greeting)

HTTP method (GET, POST, PUT, DELETE)

Java method name (e.g., sayHello)

Generates a complete controller in the appropriate directory structure:

src/main/java//web/rest/.java

Automatically formats the correct Spring annotation:

@GetMapping, @PostMapping, etc.

Simple and clean generated output:

@RestController
@RequestMapping("/api/greeting")
public class GreetingController {

@GetMapping
public String sayHello() {
    return "Hello from GreetingController";
}

}

---

Manual Testing

Verified on a fresh JHipster monolith project

Output controller compiles and runs successfully

Prompts behave as expected

File Structure

Added in:

generators/spring-controller/
├── index.js
└── templates/
└── Controller.java.ejs

Future Improvements

Support method parameters (@RequestBody, @PathVariable)

Add unit test scaffolding

Integrate with service layer

Add automated tests for the generator

Why This Is Useful

This generator speeds up development by automating the creation of REST endpoints — especially helpful for beginners and rapid prototyping.