Generate Spring Boot

Generate Spring Boot CRUD

Generate a complete Spring Boot CRUD scaffold for the given entity.

What To Do

1. Entity class with JPA annotations (@Entity, @Table, @Id, @GeneratedValue)
2. Repository interface extending JpaRepository (or MongoRepository for MongoDB)
3. Service class with @Service, @Transactional, constructor injection
4. Controller class with @RestController, @RequestMapping, proper HTTP methods
5. DTO record with validation annotations (@NotBlank, @Size, @Email)
6. Mapper — static fromEntity() / toEntity() methods on DTO record
7. Flyway migration (V1__create_{entity}_table.sql) for SQL databases
8. Exception handler with @ControllerAdvice returning ProblemDetail (RFC 7807)
9. Integration test with @SpringBootTest and Testcontainers

Structure

src/main/java/com/example/{module}/
  ├── controller/{Entity}Controller.java
  ├── service/{Entity}Service.java
  ├── repository/{Entity}Repository.java
  ├── model/{Entity}.java
  ├── dto/{Entity}Request.java (record)
  ├── dto/{Entity}Response.java (record)
  └── exception/{Entity}NotFoundException.java

src/main/resources/db/migration/
  └── V1__create_{entity}_table.sql

src/test/java/com/example/{module}/
  └── {Entity}ControllerTest.java

Patterns

• Constructor injection (no @Autowired on fields)
• @Transactional on service methods
• @Valid on @RequestBody parameters
• Pageable for list endpoints (default 20, max 100)
• ResponseEntity for proper HTTP status codes
• @EntityGraph or JOIN FETCH for eager loading where needed

Arguments

• <entity-name>: Entity name in PascalCase (e.g., Employee, JobOffer)
• --db=<postgresql|mysql|mongodb>: Database type (default: postgresql)
• --auth=<jwt|oauth2>: Authentication type (optional, adds @PreAuthorize)