Spring Framework — Dependency Injection Example

Project from the online course Spring Framework 5: Beginner to Guru by John Thompson — Sections 3, 5 and 6.

Contents

• Section 3
  • The Spring Context
  • Basics of Dependency Injection
  • Dependency Injection without Spring
  • Dependency Injection using Spring Framework
  • Using Qualifiers
  • Primary Beans
  • Spring Profiles
  • Default Profile
  • Spring Bean Life Cycle
• Section 5
  • Spring Configuration Options
  • Spring Stereotypes
  • Component Scan
  • Primary Beans and Profiles
  • DI in Java Configuration
  • Using Factory Beans
  • Spring XML Configuration Example
  • Spring Bean Scope
• Section 6
  • External Properties Overview
  • Using Properties Source
  • Environment Variables and Command Line Args
  • Spring Boot Application.properties
  • Spring Boot Profile Application.properties
  • Spring Boot Application.yml
  • Spring Boot Profile Application.yml
  • Multiple Profiles in One YAML File
  • Properties Binding
  • Constructor Properties Binding

Project Summary

• Project: Maven
• Java: 11
• Spring Boot: 2.4.5
• Dependencies
  • Spring Boot Starter Test
• Plugins
  • Spring Boot Maven Plugin
  • Heroku Maven Plugin