Both of these are used for development, but there is a major difference between Spring and Spring Boot. Spring Boot is the Spring Framework’s extension that is majorly used for making any developments on Spring much faster, convenient, and more efficient. Spring Boot can drastically reduce the effort and time required in developing an application.
In this article, we will take a look at the difference between Spring and Spring Boot. Read ahead to know more.
What is Spring?
It is a framework that is lightweight and open-source. Spring assists the Java EE 7 developers in building reliable, scalable, and simple enterprise apps. The primary focus of this framework is to provide different ways in which one can manage their business objects. The Spring framework has made web app development easier as compared to the Java frameworks and the APIs (Application Programming Interfaces), such as JDBC (Java Database Connectivity), Java Servlet, and JSP (Java Server Pages).
Spring uses a number of new techniques, like AOP (Aspect-Oriented Programming), DI (Dependency Injection), and POJO (Plain Old Java Object), for developing various enterprise apps.
In simple words, we can consider the Spring framework as a collection of various layers (or sub-frameworks), like the Spring AOP, the Spring ORM (Object-Relational Mapping), Spring Web MVC, and the Spring Web Flow. Any of these modules can be utilised separately during web app development. Also, you can group these modules together for coming with better functionalities in the Web apps.
What is Spring Boot?
It is developed on the Spring framework’s top. Thus, it provides us with all the features that Spring has and yet is much easier to use as compared to Spring.
The Spring Boot is microservice-based. It is also a framework, and it helps us create production-ready apps in comparatively less time than the Spring framework. It is because everything is auto-configured in the case of Spring Boot. We only have to use proper configuration to utilise any functionality.
The Spring Boot framework is especially useful when we are trying to develop the REST API.
Difference between Spring and Spring Boot
Let us talk about the differences between Spring and Spring Boot.
| Parameters | Spring | Spring Boot |
| Basics | It is a lightweight, open-source framework that is majorly used for developing enterprise apps. | It is a framework built on top of the conventional framework of Spring. It comes with Spring’s features and adds more functionalities to it, thus majorly used in REST API development. |
| Important Feature | Dependency injection is the most crucial feature of this framework. | Autoconfiguration is the most crucial feature of this framework. |
| Application Development | It mainly helps us create loosely coupled apps. | It mainly helps us create stand-alone apps. |
| Running of Framework | We must explicitly set the server in order to run the Spring app. | Embedded servers are provided by Spring Boot, such as Jetty, Tomcat, etc. |
| Deployment Descriptor | There is a requirement for a deployment descriptor for running the Spring app. | No deployment descriptor is required for the running of the Spring Boot. |
| Lines of Code | Developers need to write a lot of code for creating a Spring app. | One of the major advantages of using a Spring Boot is reduced lines of code. |
| In-Memory Database Support | There is no support for any in-memory databases. | The Spring Boot comes with support for in-memory databases, like H2. |
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