Spring MVC Interview Questions For Experienced(5+years)

22. Explain Spring MVC Interceptor.

Spring MVC Interceptor acts as a middleware in MVC applications. While executing the requests, we can process the requests also after, before or during the execution of the requests. We can make certain changes and can process the requests.

• During Requests – It implements error handling. And it Modifies the request context.

Note: Servlet filters and AOP (Aspect Oriented Programming) are alternatives to Spring MVC Interceptors.

Know more about Interceptor

23. Explain the role/purpose of ContextLoaderListener in Spring MVC.

ContextLoaderListener is an important module of Spring MVC. It initializes the Spring ApplicationContext. Some functionalities of ContextLoaderListener is:

• Create ApplicationContext and load the necessary beans.
• Bootstraps the Application.
• Initializes the application even before any web requests are processed.

24. How to enable CSRF protection in a Spring MVC Application?

CSRF stands for Cross Site Request Forgery. It is a security vulnerability. In this, a hacker can hack end user’s browser and send requests to web applications which may cause sensitive data leaks and any unauthorized actions. CSRF protection is enabled by Spring Security for the web applications that are starting from the 4.0 version.

Steps to follow for enabling CSRF in Web Applications:

• Step 1: The application should use proper HTTP verbs.
• Step 2: Verify CSRF protection is enabled in configuration (Enabled after Spring Security 4.0 version)
• Step 3: Include the CSRF tokens (Automatically generated by Spring Security).

Note: To disable CSRF for any specific URL, we can use @CSRFIgnore annotation.

Know more about enable and disable CSRF

25. How to use JSTL with Spring MVC?

JSTL stands for JavaServer Pages Standard Tag Library. It provides tags for working with web pages and its data. We can use JSTL with Spring MVC to simplify the development process.

Steps to Implementation:

• Step 1: JSTL Library dependencies need to be added.
• Step 2: Configure JSTL in Spring MVC by adding JstlViewResolver to the configuration file.
• Step 3: Use JSP (Java Server Pages) tags.
• Step 4: Spring MVC data access in JSTL.

JSTL tags can be combined with Spring Security tags to enhance the development process.

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26. How to integrate the Database with the Spring MVC Project?

Database Integration is a very vital process in every project. To integrate a database with Spring MVC, follow the below steps:

• Step 1: Select the database and load driver.
• Step 2: Configure JDBC database connectivity/Configure Spring Data JPA
• Step 3: Create Beans (entity object)
• Step 4: DataSource Configuration
• Step 5: DAO Layer Implementation
• Step 6: Controller and Services of Spring MVC need to be used.

Know more about MySQL database integration with Spring MVC

27. How to use SessionAttributes in Spring MVC?

SessionAttributes in Spring MVC is used to store model attributes in HTTP sessions and can retrieve them. For this, we use @SessionAttribute annotation. It avoids re-creating objects in every request. It can share data between multiple requests.

Steps to use SessionAttributes in Spring MVC:

• Step 1: Use @SessionAttribute to Controller class or method.
• Step 2: Add model attribute to session.
• Step 3: In other controller, access the session attributes.

Spring MVC (short for Model-View-Controller), is a Java framework designed to simplify web application development. Spring MVC is part of the larger Spring Framework, which was created by Rod Johnson and released in 2002.

In this article, we provide you with the Top 35+ Spring MVC interview questions with answers that cover everything from the basics of Spring MVC to advanced Spring MVC Concepts Such as Dispatcher Servlet, Interceptors, Data Binding and Validation, RESTful APIs, and many more.

Whether you are a fresher or intermediate (minimum 1 year of experience ) or an experienced professional with 5 years or 10 years of experience, these practice spring MVC interview questions give you all the confidence you need to ace your next Spring MVC Technical interview.