Recommend Forlder structure for Spring Boot

src/
└── main/
    ├── java/
    │   └── com/
    │       └── yourcompany/
    │           └── yourapp/
    │               ├── YourAppApplication.java         # Main class (entry point)
    │               │
    │               ├── config/                         # Configuration classes (e.g. WebSecurityConfig)
    │               ├── controller/                     # REST Controllers (@RestController)
    │               ├── dto/                            # Data Transfer Objects
    │               ├── entity/                         # JPA Entities (@Entity)
    │               ├── exception/                      # Custom exceptions & handlers
    │               ├── repository/                     # Spring Data Repositories (@Repository)
    │               ├── service/                        # Business logic layer (@Service)
    │               └──  util/                           # Utility/helper classes
    │
    └── resources/
        ├── application.yml                             # Configuration file (or .properties)
        ├── static/                                     # Static assets (HTML, CSS, JS if needed)
        ├── templates/                                  # Thymeleaf or other templates (if needed)
        └── db/
            └── migration/                              # Flyway or Liquibase SQL migrations

cd src/main/java/com/yourcompany/yourapp/
mkdir -p {config,controller,dto,entity,exception,repository,service,util}