Springboot

Question 1

What is Springboot?

Answer 1

An open-source framework that simplifies the creation and development of web-based applications in Java

Allows developers to focus on writing business logic, rather than configuration

Provides pre-configured components, opinionated defaults, and a command-line interface that facilitates the creation of production-ready applications.

Question 2

What is the difference between Spring and Springboot?

Answer 2

Spring Boot is a more streamlined version of Spring that simplifies the configuration process and provides an out-of-the-box experience

Spring is a more modular and customizable framework that provides a wider range of features but requires more configuration.

Question 3

What is the default port used by SpringBoot?

Answer 3

8080

Question 4

What are the advantages of using Spring Boot?

Answer 4

• simplified configuration
• auto configuration
• faster development
• out of the box experience
• easy configuration
• large community support

Question 5

What is a Bean in Spring Boot?

Answer 5

An object

Question 6

How do you create a RESTful web service using SpringBoot?

Answer 6

• Create a new Spring Boot project using your preferred IDE or by using Spring Initializr.
• Add the necessary dependencies to your project, including spring-boot-starter-web.
• Create a new Java class that will serve as the REST controller. This class should be annotated with @RestController.
• Define methods within the controller class that will handle HTTP requests from clients. These methods should be annotated with the appropriate HTTP method annotation (e.g., @GetMapping, @PostMapping, @PutMapping, @DeleteMapping).
• Define the URI mappings for the methods using the @RequestMapping annotation.
• Define the response types for the methods, which can be a simple data type (e.g., String) or a custom class.
• Run the Spring Boot application, and the RESTful web service will be available at the specified URI.

Question 7

What is an application.properties file in Spring Boot?

Answer 7

• Port number
• Database connection

Question 8

What is a DTO?

Answer 8

A data transfer object is a design pattern that lets us transfer a group of info at one time

Ie. instead of fetching info about customers one at a time, you could make a class
customer DTO {
setFirstName..
setSecondName..
}