---
name: spring-boot-application-6a405a663690
description: >
  Build enterprise Spring Boot applications with annotations, dependency
  injection, data persistence, REST controllers, and security. Use when
  developing Spring applications, managing beans, implementing services, and
  configuring Spring Boot projects.
---

# Spring Boot Application

## Table of Contents

- [Overview](#overview)
- [When to Use](#when-to-use)
- [Quick Start](#quick-start)
- [Reference Guides](#reference-guides)
- [Best Practices](#best-practices)

## Overview

Develop production-ready Spring Boot applications with proper annotation-based configuration, dependency injection, REST controllers, JPA data persistence, service layers, and security implementation following Spring conventions.

## When to Use

- Building Spring Boot REST APIs
- Implementing service-oriented architectures
- Configuring data persistence with JPA
- Managing dependency injection
- Implementing Spring Security
- Building microservices with Spring Boot

## Quick Start

Minimal working example:

```xml
<!-- pom.xml -->
<project>
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.example</groupId>
    <artifactId>api-service</artifactId>
    <version>1.0.0</version>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>3.1.0</version>
    </parent>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
// ... (see reference guides for full implementation)
```

## Reference Guides

Detailed implementations in the `references/` directory:

| Guide | Contents |
|---|---|
| [Spring Boot Project Setup](references/spring-boot-project-setup.md) | Spring Boot Project Setup |
| [Entity Models with JPA Annotations](references/entity-models-with-jpa-annotations.md) | Entity Models with JPA Annotations |
| [Repository Layer with Spring Data JPA](references/repository-layer-with-spring-data-jpa.md) | Repository Layer with Spring Data JPA |
| [Service Layer with Business Logic](references/service-layer-with-business-logic.md) | Service Layer with Business Logic |
| [REST Controllers with Request/Response Handling](references/rest-controllers-with-requestresponse-handling.md) | REST Controllers with Request/Response Handling |
| [Spring Security Configuration](references/spring-security-configuration.md) | Spring Security Configuration |
| [Application Configuration](references/application-configuration.md) | Application Configuration |

## Best Practices

### ✅ DO

- Use dependency injection for loose coupling
- Implement service layer for business logic
- Use repositories for data access
- Leverage Spring Security for authentication
- Use @Transactional for transaction management
- Validate input in controllers
- Return appropriate HTTP status codes
- Use DTOs for request/response mapping
- Implement proper exception handling
- Use Spring's @Async for async operations

### ❌ DON'T

- Put business logic in controllers
- Access database directly in controllers
- Store secrets in configuration files
- Use eager loading for large relationships
- Ignore transaction boundaries
- Return database entities in API responses
- Implement authentication in controllers
- Use raw SQL without parameterized queries
- Forget to validate user input


---
Source attribution: aj-geddes
Original project: https://github.com/aj-geddes/useful-ai-prompts/blob/3f5182cfd739fc113f4af5244a1cf342ad7f7911/skills/spring-boot-application/SKILL.md
License: MIT
License information: https://opensource.org/license/mit
Original upstream instructions; downloaded from Mega AI Hub.

## Upstream license notice

MIT License

Copyright (c) 2025 AJ Geddes

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.


# Mega AI Hub resource metadata

Creator / publisher: aj-geddes
Original project: https://github.com/aj-geddes/useful-ai-prompts/blob/3f5182cfd739fc113f4af5244a1cf342ad7f7911/skills/spring-boot-application/SKILL.md
Attribution basis: Source repository record

Fields of work: Development & Engineering, Product Management
Roles: Backend Developer, Full-Stack Developer, Product Manager
Specialties: Backend
Tools: Spring Boot
Country applicability: Country not specified
Classification basis: Source catalog labels
Instruction SHA-256: 7a5e3ab2b40badd90e605c43db9278fb65b3a04622872d3687343e718784e606