Advantages of spring boot in Java

What is a Spring boot

Spring Boot makes it easy to create stand-alone, production-grade Spring based Applications that you can "just run".

We take an opinionated view of the Spring platform and third-party libraries so you can get started with minimum fuss. Most Spring Boot applications need minimal Spring configuration.

Creates stand-alone Spring applications. The spring application has Embedded Tomcat, Jetty, or Undertow directly, so we don't need to make a war file and deploy it to the servlet container.

Why we have to use Spring Boot?

Its Java-based applications Development framework, which includes the Unit Test and Integration Test Process and gives production-ready builds.

It reduces development, Unit Test, and Integration Test time by handling boilerplate code for use. We need minimal configuration.

Absolutely no code generation and no requirement for XML configuration.

Spring Boot Advantages

  • Simplified dependency management through the starter POMs and handles all required versions, so there will no dependency version conflict.
  • No need of creating boilerplate configuration
  • You can quickly set up and run standalone, web applications, and microservices at very less time.
  • Spring boot gives a single jar (war also) which comes with an embedded Tomcat, Jetty, or Undertow application server, and when you run jar, your application is ready to handle requests.
  • Spring Boot provides HTTP endpoints to access application internals like detailed metrics, application inner working, health status, etc.
  • No XML based configurations at all. Very much simplified properties. The beans are initialized, configured, and wired automatically.
  • The Spring Initializer provides out of box support for spring boot project generation, where you have to select required dependencies in spring initializer. your project setup will be ready.
  • The big advantage is out of the box configuration based on what it finds and server embedded (you can make a jar run it and go to localhost:8080 to see the result) beside that it has metrics, health checks, externalized configuration, etc
  • It's just another project from the Spring framework, where things look simplified, with strong support for Security, Data, Social, etc all features you want for your application.
  • DevTools to auto-restart server on code/config updates
  • No need of creating boilerplate configuration as It writes lots of boilerplate Code, Annotations and XML Configuration for us,
  • It is very easy to integrate Spring Boot Application with its Spring's other modules like Spring JDBC, Spring ORM, Spring Data, Spring Cloud, Spring Security, etc.
  • It provides the Command Line Interface tool (SpringBoot CLI) to develop and test Spring Boot(Java or Groovy) Applications from the command line.
  • Plenty of SpringBoot Starter to quickly get up and running
  • Easier customization of application properties.
  • Easy management of profile-specific properties.
  • Easier to launch from a container, each service can be in its own container (like docker).
  • Easy to configure and deploy completely from a script. Good for auto-scaling and deploying in the cloud.
  • Easier dependency management using platform-bom.
  • Spring boot reduces development time to much extent and increases productivity for developers.
  • Spring boot has the advantage of leaving the complex XML file to configure.
  • Embedded tomcat discard the web.xml configuration;
  • Spring-boot security discard the application context-security.xml configuration;
  • Spring-boot web service discard the application context-ws.xml configuration;
  • Spring-boot MVC discard the applicationcontext.xml configuration;
  • Spring-boot data source(both Relational Database and NoSQL Database) discard the applicationcontext.xml configuration, even if more than one data source.
  • Discard this configuration file easy our development and improve efficiency.

Disadvantages of Spring Boot

  • Spring boot may unnecessarily increase the deployment binary size with unused dependencies.
  • If you are a control freak, I doubt Spring Boot would fit your needs.
  • Spring Boot sticks well with microservices. The Spring Boot artifacts can be deployed directly into Docker containers.
  • In large and monolithic based applications, I would not encourage you to use Spring Boot.

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In this article, we have seen the Advantages of spring boot.