Back to projects

Bases of Java Spring

Repository with all the content that i done during the Java Spring course

2 min read

This repository contains all the code, exercises, and mini-projects I've written while taking the "Master Spring framework, Spring Boot, REST, JPA, Hibernate" course. It's a hands-on log of everything I've learned while diving deep into the Spring ecosystem.

📚 About the Course

The course focuses on building full-fledged web applications and RESTful APIs using technologies like:

  • Spring Framework (Core, MVC, AOP)
  • Spring Boot
  • Spring Security
  • Spring JDBC & Spring Data JPA
  • Thymeleaf
  • Hibernate
  • REST API Development & Consumption
  • Spring Boot Actuator & Admin
  • AWS Deployment

🛠 What I Learned

Here’s a summary of the key concepts and topics I’ve worked on:

✅ Spring Basics

  • What is Spring and why use it
  • Spring vs Java EE
  • Spring’s evolution and modules
  • Core concepts: IoC, DI, AOP
  • Bean creation methods and scopes
  • Autowiring and using Lombok

🌐 Web Development with Spring MVC

  • MVC pattern and architecture
  • Building web apps with Spring MVC + Thymeleaf
  • Form validations and dynamic templates
  • Integrating Spring Security for login and roles

🚀 Spring Boot

  • Auto-configuration and starters
  • DevTools, H2 database, profiles
  • Externalized configuration (properties/YAML)
  • Conditional beans and logging

🔒 Security

  • Authentication & authorization
  • CSRF & CORS
  • Role-based access

🗄️ Data Layer

  • Spring JDBC for DB operations
  • JPA and Hibernate basics
  • CRUD with Spring Data JPA
  • Derived queries and relationships:
    • OneToOne, OneToMany, ManyToOne, ManyToMany
  • JPQL, pagination, sorting

🔗 REST APIs

  • Building REST services with Spring
  • Consuming APIs using:
    • RestTemplate
    • WebClient
    • OpenFeign
  • Spring Data REST & HAL Explorer

🛠 Monitoring & Deployment

  • Spring Boot Actuator & Admin
  • Deploying to AWS Elastic Beanstalk

📁 Project Structure

Each part has his own README.md with the most important topics of the section, the things i thought that are the most important. You can check it out following the next structure that represents the path of learning that i've took:

├──1_Beans
├──2_AutoWiring
├──3_Scopes
├──4_AOP
├──5_Introduction_SpringBoot
├──6_Thymeleaf
├──7_Lombok
├──8_QueryParams&PathVariables
├──9_Validators
├──10_WebScopes
├──11_SpringSecurity
├──12_ExceptionHandling
├──13_SpringSecurity_Part2
├──14_H2Database
├──15_SpringData&DataAuditing
├──16_CustomValidations
├──17_OneToOne
├──18_SpringSecurity_Part3
├──19_OneToMany&ManyToOne
├──20_ManyToMany
├──21_SpringData_Sorting&Pagination
├──22_SpringData_CustomQueries
├──23_REST_Introduction
├──24_SpringDataRest&HALExplorer
├──25_Logging
├──26_PropertiesConfiguration&Profiles
├──27_Actuator
└── README.md