[Spring Boot Reference Guide] reading notes one Getting Started

8. Introducing Spring Boot

Goals of Spring Boot:

• Provide a radically faster and widely accessible getting started experience for all Spring development.
• Be opinionated out of the box, but get out of the the-quickly as requirements start to diverge from the defaults.
• Provide a range of non-functional features that is common to large classes of projects (e.g. embedded servers, security, Metrics, health checks, externalized configuration).
• Absolutely no code generation and no requirement for XML configuration.

9. System Requirements

Spring boot integrates web containers for servlet 3.0+ such as Tomcat, Jetty, and so on.

Ten. Installing Spring Boot

Various installation methods for spring boot and Spring boot CLI

Developing your first Spring Boot application

1.

The spring-boot-starter-parent is a special starter that provides useful Maven defaults. It also provides a dependency-management sections so, can omit version tags for "blessed" dependencies.

Spring-boot-starter-parent provides the required dependencies, and can omit dependent versions.

Spring-boot-starter-web can be used to generate web programs, with Tomcat and so on.

2. Code:

1Import org.springframework.boot.*;2Import org.springframework.boot.autoconfigure.*;3Import org.springframework.stereotype.*;4Import org.springframework.web.bind.annotation.*;5 6@RestController//Rest controller that renders the string directly and returns it to the caller7@EnableAutoConfiguration//Automatic Configuration8  Public classExample {9@RequestMapping ("/")//RoutingTen String Home () { One         return "Hello world!"; A     } -      Public Static voidMain (string[] args) throws Exception { -Springapplication.run (Example.class, args); the     } -}

Start with the following command

MVN Spring-boot:run

[Spring Boot Reference Guide] reading notes one Getting Started