What are the various ways of using Spring framework?

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What are the various ways of using Spring framework?

There are three ways to define configuration, available in Spring 4 by default:

  • xml-based configuration, when you describe configuration in xml file;
  • java-based configuration, when configuration is Java class, marked with specific annotations;
  • groovy-based configuration, when configuration is file with Groovy code;

What are annotations in spring boot?

Spring Boot Annotations is a form of metadata that provides data about a program that is not a part of the program itself. They do not have any direct effect on the operation of the code they annotate. Spring Boot Annotations do not use XML and instead use the convention over configuration principle.

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What are the Spring core components?

Overview of the Spring framework

  • Core container. Core. Bean. Context. Expression Language.
  • Aspect-oriented programming (AOP) AOP. Aspects. Instrumentation.
  • Data access and integration. JDBC. JPA/ORM. JMS. Transactions.
  • Web. Web/REST. Servlet. Struts.

What are the core components of Spring framework?

The Core Container consists of the spring-core , spring-beans , spring-context , spring-context-support , and spring-expression (Spring Expression Language) modules. The spring-core and spring-beans modules provide the fundamental parts of the framework, including the IoC and Dependency Injection features.

What are the annotations used in spring?

Some of the important Spring MVC annotations are:

  • @Controller.
  • @RequestMapping.
  • @PathVariable.
  • @RequestParam.
  • @ModelAttribute.
  • @RequestBody and @ResponseBody.
  • @RequestHeader and @ResponseHeader.

What is @component annotation in spring boot?

@Component is an annotation that allows Spring to automatically detect our custom beans. In other words, without having to write any explicit code, Spring will: Scan our application for classes annotated with @Component. Instantiate them and inject any specified dependencies into them. Inject them wherever needed.

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What is @bean in Spring boot?

Spring @Bean annotation tells that a method produces a bean to be managed by the Spring container. It is a method-level annotation. During Java configuration ( @Configuration ), the method is executed and its return value is registered as a bean within a BeanFactory .

Why are springspring interview questions and answers frequently asked?

Spring interview questions and answers are frequently asked because it is now widely used framework to develop enterprise application in java. There are given a list of top 40 frequently asked spring interview questions. It is a lightweight, loosely coupled and integrated framework for developing enterprise applications in java.

What is springspring framework?

Spring Framework is one of the foremost wide used Java frameworks. Spring framework core ideas are “Dependency Injection” and “Aspect-Oriented Programming”.

Do you have a spring interview coming up in 2022?

Spring is nearing its 20th anniversary (late 2022), and the Java framework isn’t showing signs of waning popularity. In fact, on our job board, we have hundreds of Spring jobs available for remote developers at any given time. Anyway, if you made it here, you probably have a Spring interview coming up —

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How many Bean scopes are there in Spring Framework?

There are 5 bean scopes in spring framework. The bean instance will be only once and same instance will be returned by the IOC container. It is the default scope. The bean instance will be created each time when requested.