Spring Boot - Quick Start
Spring Boot - Quick Start
Version: 2.0 - Date: 04.2021
About the Book
This is first Book in the series
Content
Intention of this Book is to quickly get you started using Spring Boot to develop Web Applications.
Book covers basic functionalities like: Controllers, Endpoints, Entities, DTOs, Services, Repositories.
Standalone Tutorials
The core of this Book are standalone tutorials that explain different functionalities of Spring Boot.
Each tutorial contains minimum amount of code needed to explain specific functionality.
And also minimum amount of encompassing text that explains related theory and different parts of the code.
This approach allows students to grasp presented concepts in a very fast and efficient manner.
Full code, which can also be downloaded from GitHub, prevents any time being wasted trying to make the code work.
Simple examples allow for full understanding of the functionality without any unnecessary distractions.
Theoretical Background
Where needed tutorials are preceded by chapters focusing on theoretical background.
This way reader can fully understand functionalities explained in the subsequent chapters.
But such chapters are in minority and of secondary importance because the main focus is on practical applications.
Demo Applications
Book contains demo Applications that show how to combine functionalities covered in previous tutorials. More complex Application "Authors & Books" is broken into multiple steps showing how to add additional functionalities at each step.
About the Author
Bundles that include this book
Table of Contents
- 1. Quick Start
- 1.1 Install
- 1.1.1 Java
- 1.1.2 IntelliJ IDEA
- 1.2 Create Project with IntelliJ
- 1.2.1 Community Edition (free)
- 1.2.2 Ultimate Edition (paid)
- 1.3 Application
- 1.3.1 Run
- 1.3.2 Deploy
- 2. Basic Terms
- 2.1 Project
- 2.1.1 Spring Boot Starters
- 2.1.2 Spring Initializer
- 2.1.3 Spring Boot Project
- 2.2 Object Types
- 2.2.1 Entity Object (DO)
- 2.2.2 Data Access Object (DAO)
- 2.2.3 Data Transfer Object (DTO)
- 2.2.4 Data Converter Object (DCO)
- 2.2.5 Controller Object (CO)
- 2.3 Profiles
- 2.3.1 Assign Profile - To Class
- 2.3.2 Assign Profile - To application.properties
- 2.3.3 Specify Active Profile - Using Run Configuration
- 2.3.4 Specify Active Profile - Using application.properties
- 2.4 application.properties
- 2.4.1 Read Property - From Controller
- 2.4.2 Read Property - From HTML
- 2.4.3 Built-in Properties
- 2.5 @Autowired
- 2.5.1 Manually
- 2.5.2 Location - Property
- 2.5.3 Location - Setter
- 2.5.4 Location - Constructor
- 2.5.5 Interface - @Primary
- 2.5.6 Interface - @Qualifier
- 2.5.7 Interface - @Profile
- 2.6 Service
- 2.6.1 Business Logic - Inside Controller
- 2.6.2 Business Logic - Inside Service
- 2.6.3 Instantiate Service - Using Class
- 2.6.4 Instantiate Service - Using Class - @Autowired
- 2.6.5 Instantiate Service - Using Interface
- 2.6.6 Instantiate Service - Using Interface - @Autowired
- 3. Controller
- 3.1 Annotations
- 3.1.1 @Controller
- 3.1.2 @RestController
- 3.2 Endpoints
- 3.2.1 @RequestMapping
- 3.2.2 @GetMapping
- 3.2.3 @PostMapping
- 3.2.4 @RequestParam
- 3.2.5 @PathVariable
- 3.2.6 Return - Data - Text
- 3.2.7 Return - Data - JSON
- 3.2.8 Return - View - HTML
- 3.2.9 Return - View - Thymeleaf
- 3.2.10 Return - View - JSP
- 3.2.11 Download - Excel
- 3.2.12 Download - Excel - With Header
- 4. Database
- 4.1 Entity
- 4.1.1 Properties - Public
- 4.1.2 Properties - Private - Getters & Setters
- 4.1.3 Properties - Private - Getters & Constructor
- 4.1.4 @Entity
- 4.1.5 @Id
- 4.1.6 @IdClass
- 4.1.7 @EmbeddedId
- 4.1.8 @Table
- 4.1.9 @Column
- 4.1.10 @Transient
- 4.1.11 Recommended Annotations
- 4.2 Databases
- 4.2.1 H2
- 4.2.2 MySQL
- 4.2.3 PostgreSQL
- 4.2.4 MongoDB
- 4.3 Relationships
- 4.3.1 @OneToOne - Join Table
- 4.3.2 @OneToOne - Foreign Key
- 4.3.3 @OneToMany - Join Table
- 4.3.4 @OneToMany - Foreign Key
- 4.3.5 @ManyToMany - Join Table
- 4.4 Queries
- 4.4.1 Native Query
- 4.4.2 JPQL
- 5. DTO
- 5.1 Deserialize
- 5.1.1 From Request Parameters - Using Setters
- 5.1.2 From Request Parameters - Using Setters - Customized
- 5.1.3 From Request Parameters - Using Map
- 5.1.4 From Request Parameters - Using Map - Customize Setter
- 5.1.5 From JSON - @RequestBody - Object - Properties
- 5.1.6 From JSON - @RequestBody - Object - Setters
- 5.1.7 From JSON - @RequestBody - Object - Constructor
- 5.1.8 From JSON - @RequestBody - Object - Constructor - Custom
- 5.1.9 From JSON - @RequestBody - Object - All
- 5.1.10 From JSON - @RequestBody - Array
- 5.1.11 From JSON - @JsonProperty - Properties
- 5.1.12 From JSON - @JsonProperty - Setters
- 5.1.13 From JSON - @JsonProperty - Constructor
- 5.1.14 From JSON - @JsonFormat - Properties
- 5.1.15 From JSON - @JsonFormat - Setters
- 5.1.16 From JSON - @JsonFormat - Constructor
- 5.1.17 From JSON - @JsonDeserialize
- 5.2 Serialize Response DTO
- 5.2.1 @ResponseBody
- 5.2.2 @JsonSerialize
- 6. Object Mapping
- 6.1 Manual Mapping
- 6.2 JMapper
- 6.2.1 Using Annotations
- 6.3 Map Struct
- 6.3.1 Using Annotations
- 6.4 Model Mapper
- 6.4.1 Overview
- 6.4.2 Matching Strategy
- 6.4.3 Default Mapping
- 6.4.4 Custom Mapping
- 6.4.5 Exclude Mapping
- 7. Demo Applications
- 7.1 Simple Applications
- 7.1.1 Store Entity from JSON
- 7.1.2 Store Entities from JSON Array
- 7.2 Authors & Books
- 7.2.1 Step 1: Create Project
- 7.2.2 Step 2: Entity - Author
- 7.2.3 Step 3: Entity - Book
- 7.2.4 Step 4: Relationship @OneToMany
- 7.2.5 Step 5: Service - Add Author
- 7.2.6 Step 6: Service - Add Book
- 7.2.7 Step 7: Service - Get Books
- 7.2.8 Step 8: Service - Add Author & Book
- 8. Appendix
- 8.1 Lombok
- 8.1.1 Lombok API - Use
- 8.1.2 Lombok Plugin - Install for IntelliJ
- 8.1.3 Lombok Plugin - Lombok
- 8.1.4 Lombok Plugin - Delombok
- 8.2 IntelliJ
- 8.2.1 Copy Project
- 8.2.2 DB Tools
- 8.3 IntelliJ - Developer Tools
- 8.3.1 Install Chrome Extension: Live Reload
- 8.3.2 IntelliJ Registry: compiler.automake
- 8.3.3 Run Configuration: Update classes and resources
- 8.3.4 Settings: Build Project Automatically
- 8.3.5 Create Spring Boot Project
- 8.4 Database - H2
- 8.4.1 Application Example
- 8.4.2 DB: Specify Name
- 8.4.3 Console: Enable
- 8.4.4 Console: Open
- 8.4.5 Console: Show Records
- 8.4.6 Console: Security
- 8.5 Database - MySQL
- 8.5.1 Create Schema/Database
- 9. Errors
- 9.1 Maven
- 9.1.1 Plugin 'org.springframework.boot:spring-boot-maven-plugin:' not found
- 9.2 Controller
- 9.2.1 Circular view path
- 9.3 Database
- 9.3.1 Cannot Resolve Table
- 9.3.2 Records are not inserted into DB
- 9.3.3 Database Tool Window can't see H2 Tables
- 10 Summary
- 10.1 Spring Boot Application
- 10.1.1 Create Spring Boot Project
- 10.1.2 Deploy
- 10.2 Main Terms
- 10.2.1 Object Types
- 10.2.2 application.properties
- 10.2.3 Profiles
- 10.2.4 @Autowired
- 10.2.5 Service
- 10.3 Controller & Endpoints
- 10.3.1 URL Mapping
- 10.3.2 Input Parameters
- 10.3.3 Return Value
- 10.4 Database
- 10.4.1 Entity
- 10.4.2 Relationships
- 10.4.3 Queries
- 10.4.4 Different Databases
- 10.5 DTO
- 10.5.1 Deserialize Request DTO
- 10.5.2 Serialize Response DTO
- 10.6 Object Mapping
- 10.6.1 JMapper
- 10.6.2 Map Struct
- 10.6.3 Model Mapper
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