General Information

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Getting Started with Spring Boot

• WHY Spring Boot?
• WHAT are the goals of Spring Boot?
• HOW does Spring Boot work?
• COMPARE Spring Boot vs Spring MVC vs Spring?

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• Setting up Spring Projects before Spring Boot was NOT easy!

Generate Your Project

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SNAPSHOT version are version under development.

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Before the Spring Boot launched, several obstacles that you might find during your develoment:

1. Dependency Management (pom.xml)
   • Manage frameworks and versions
     • REST API - Spring frameworks, Spring MVC framework, etc.
     • Unit Test - Spring Test, Mockito, JUnit, etc.
2. Define Web App Configuration(web.xml)
   • example: Configure DispatcherServlet for Spring MVC
3. Spring Configuration (context.xml)
   • Define Spring Configuration
     • Component Scan
     • View Resolver
4. NFRs (Non-Functional Requirements)
   • Logging
   • Error Handling
   • Monitoring

Spring Boot Starter Projects

• Web Application & REST API - Spring Boot Starter Web (spring-webmvc, spring-web, spring-boot-starter-tomcat, spring-boot-starter-json)
• Unit Test - Spring Boot Starter Test
• Talk to database using JPA - Spring Boot Starter Data JPA
• Talk to database using JDBC - Spring Boot Starter JDBC
• Secure web application or REST API - Spring Boot Starter Security

Debug

• To enable debug in Spring Boot, you can add value on application.properties - src/main/resources/application.properties

logging.level.org.springframework=debug

Devtools

• Add spring-boot-devtools in pom.xml

<dependencies>
	<dependency>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-web</artifactId>
	</dependency>

    <dependency>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-devtools</artifactId>
	</dependency>

	<dependency>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-test</artifactId>
		<scope>test</scope>
	</dependency>
</dependencies>

• For IntelliJ IDEA, you need to checked the Build Project Automatically in IntelliJ IDEA -> Setting -> Build, Execution, Deployment -> Compiler.

• For IntelliJ IDEA, you need to checked the Allow auto-make to start even... in IntelliJ IDEA -> Setting -> Advanced Settings

Advantage of using Spring Boot Dev Tools

• Increase developer productivity
• For pom.xml dependency changes, need to stop your server manually