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Learning-SpringBoot

Learning Spring Boot and Microservices

Spring Framework Projects Collection

A comprehensive repository containing 70+ Spring Framework projects covering core concepts from basic IOC to advanced web development. Each project demonstrates practical implementations with real-world examples and best practices.

🏗️ Repository Structure

🔧 IOC_Projects - Core Spring Framework

Comprehensive collection of 31 projects covering Spring Core concepts including:

  • Dependency Injection: Constructor, Setter, Field injection patterns
  • Advanced IOC Features: Bean scopes, lifecycle management, internationalization
  • Design Patterns: Factory, Strategy patterns with Spring integration
  • Java Configuration: 100% annotation-based Spring development
  • Advanced Techniques: Lookup method injection, method replacers, circular dependency handling

Perfect for mastering Spring fundamentals and advanced IOC container features.

🚀 BOOT_Projects - Spring Boot Core Features

14 projects demonstrating Spring Boot fundamentals and essential integrations:

  • Dependency Injection: DI patterns in Spring Boot applications
  • Configuration Management: YAML vs Properties, SpEL integration
  • Environment Profiles: Multi-environment setup and profile inheritance
  • Application Lifecycle: Runners, startup customization, Lambda expressions
  • Mail Integration: Email sending functionality with Spring Boot Mail starter

Ideal for learning Spring Boot development from basics to advanced configurations.

🗃️ BOOTJPA_Projects - Database Operations with JPA

16 projects covering complete database interaction patterns:

  • Repository Patterns: CrudRepository, JpaRepository, PagingAndSortingRepository
  • Query Methods: Custom finder methods, HQL/JPQL, Native SQL queries
  • Advanced Features: Stored procedures, BLOB/CLOB handling, multi-database setup
  • ORM Mapping: One-to-Many, Many-to-Many association patterns
  • Data Management: DateTime handling, versioning, timestamping

Essential for mastering database operations in Spring Boot applications.

🍃 BOOTMONGO_Projects - NoSQL with MongoDB

6 projects exploring NoSQL database integration:

  • MongoDB Repository: Basic CRUD operations and MongoRepository interface
  • Document Modeling: Special data types, nested documents, array handling
  • Relationships: One-to-One, One-to-Many document associations
  • Advanced Queries: Custom @Query methods, MongoDB query syntax
  • MongoTemplate: Complex operations, aggregation pipelines, advanced queries

Perfect for developers exploring NoSQL solutions with Spring Boot and MongoDB.

🌐 MVC_Projects - Web Development

9 projects covering complete web application development:

  • MVC Architecture: Controllers, views, request mapping fundamentals
  • Request Handling: URL routing, path variables, request parameters
  • Form Processing: HTML forms, Spring Form tags, data binding
  • Data Rendering: Dynamic content, view technologies, template integration
  • Complete Applications: Full CRUD operations with MVC architecture

Comprehensive guide for building web applications using Spring Boot MVC.

🛠️ Technologies & Tools Covered

Core Technologies

  • Spring Framework 5.x/6.x - IOC, DI, AOP concepts
  • Spring Boot 2.x/3.x - Auto-configuration, starters, actuator
  • Spring Data JPA - Repository patterns, query methods
  • Spring Data MongoDB - NoSQL integration, document operations
  • Spring MVC - Web development, REST APIs, form handling

Databases & Integration

  • Relational: MySQL, Oracle, H2 Database
  • NoSQL: MongoDB document database
  • ORM: Hibernate, JPA specifications
  • Communication: Email integration, SMTP configuration

Development Tools

  • Build Tools: Maven, Gradle
  • IDEs: Eclipse, IntelliJ IDEA support
  • Configuration: YAML, Properties files
  • Version Control: Git workflow ready

🎯 Learning Path Recommendations

For Beginners

  1. Start with IOC_Projects - Master Spring fundamentals
  2. Move to BOOT_Projects - Learn Spring Boot basics
  3. Practice with MVC_Projects - Build web applications

For Intermediate Developers

  1. Explore BOOTJPA_Projects - Database integration mastery
  2. Try BOOTMONGO_Projects - NoSQL development skills
  3. Integrate concepts across different project types

For Advanced Users

  • Pick specific advanced topics from any category
  • Combine multiple technologies in custom projects
  • Study advanced patterns and best practices

📋 Prerequisites

  • Java 8+ (Java 11+ recommended)
  • Maven 3.6+ or Gradle 6+
  • IDE: Eclipse, IntelliJ IDEA, or VS Code
  • Database: MySQL/Oracle (for JPA), MongoDB (for NoSQL projects)
  • Basic Knowledge: Core Java, OOP concepts, basic web development

📚 Detailed Documentation

Each project category contains its own comprehensive README with:

  • Project-specific setup instructions
  • Detailed learning paths and prerequisites
  • Code examples and explanations
  • Best practices and common pitfalls
  • Additional resources and references

Navigate to individual folders for complete documentation and project details.

This repository serves as a complete learning resource for Spring Framework development, suitable for developers at all levels looking to master modern Java enterprise development.