Spring Boot – Code Structure


Spring Boot – Code Structure


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Spring Boot does not have any code layout to work with. However, there are some best practices that will help us. This chapter talks about them in detail.

Default package

A class that does not have any package declaration is considered as a default package. Note that generally a default package declaration is not recommended. Spring Boot will cause issues such as malfunctioning of Auto Configuration or Component Scan, when you use default package.

Note − Java”s recommended naming convention for package declaration is reversed domain name. For example − com.tutorialspoint.myproject

Typical Layout

The typical layout of Spring Boot application is shown in the image given below −

Typical Layout of Spring Boot Application

The Application.java file should declare the main method along with @SpringBootApplication. Observe the code given below for a better understanding −

package com.tutorialspoint.myproject;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class Application {
   public static void main(String[] args) {SpringApplication.run(Application.class, args);}
}

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