Web Application Development

Welcome to the Web Application Development learning materials!

Introduction

• Web Application Basics
  • What is a Web Application?
  • Components of a Web Application
  • How They Work Together
• Development Environment Setup
  • Integrated Development Environment (IDE)
  • Java Development Kit (JDK)
  • Version Control System
  • Build Tool
  • Database
  • Next Steps

Building RESTful APIs with Spring Boot

• Understanding REST
  • What is REST?
  • Key Principles of REST
  • RESTful URLs and HTTP Methods
  • Benefits of RESTful Architecture
  • Example RESTful API Structure
• Creating Rest Controllers
  • Path Variables with @PathVariable
  • Query Parameters with @RequestParam
  • Request Bodies with @RequestBody
  • Handling Different HTTP Methods
  • Best Practices
• Handling Parameters in REST Controllers
  • Query Parameters with @RequestParam
  • Path Variables with @PathVariable
  • Request Bodies with @RequestBody
  • Combining Different Parameter Types
  • Best Practices
  • Best Practices

Spring basics

• Introduction to Spring Boot
  • What is Spring Boot?
  • Key Features of Spring Boot
  • Creating a Spring Boot Project
  • Project Structure
  • Running Your Application
  • Build Process
  • Next Steps
• Understanding Spring Beans and Dependency Injection in Spring Boot
  • What is a Spring Bean?
  • Key Characteristics of Spring Beans
  • How Beans are Created
  • Automatically Generated Beans
  • Constructor Injection in Spring
  • Why Spring Beans are Important
• Three-Tier Architecture in Spring Boot Applications
  • What is Three-Tier Architecture?
  • Presentation Layer (Controllers)
  • Business Logic Layer (Services)
  • Data Access Layer (Repositories)
  • Layer Dependencies

Data Persistence with Spring Data JPA

• Setting Up the Database
  • Setting Up PostgreSQL with Docker Compose
  • Configuring Spring Boot to Use PostgreSQL
• Introduction to JPA and Hibernate
  • What is JPA?
  • What is Hibernate?
  • Key Concepts
  • Spring Data JPA
  • JPA and Hibernate in Spring Boot
  • Advantages of Using JPA/Hibernate
  • Disadvantages and Challenges
• Creating Entities
  • What is an Entity?
  • Creating a Basic Entity
  • Key Annotations
  • Relationships Between Entities
  • Best Practices
• Repositories
  • What is a Repository?
  • Creating a Basic Repository
  • Repository Interfaces
  • Custom Query Methods
  • Using @Query Annotation
  • Best Practices
• Basic CRUD Operations
  • Create Operation
  • Read Operations
  • Update Operation
  • Delete Operation
  • Best Practices
  • Example with Pagination
• Database Migration with Liquibase