DispatcherServlet — Spring Technical Interview Questions & Answers

The front controller for every incoming request.

DispatcherServlet

  • DispatcherServlet (spring mvc) is a Spring topic. In plain words you use it for a short DispatcherServlet spring mvc example in a small REST app. Don’t start with a slogan — start with that picture.
  • Smallest example: the smallest DispatcherServlet spring mvc example you can type. Type it, run it, and say what you see. If you can do that from memory, you know DispatcherServlet (spring mvc).
  • From the example next to this theory: The front controller for every incoming request.
  • Trap: only saying “DispatcherServlet spring mvc” with no example. Fix that before you talk about advanced Spring.
  • Viva: what is DispatcherServlet (spring mvc)? Then show the smallest DispatcherServlet spring mvc example you can type. Then name the trap.

Technical Interview Tip: What is DispatcherServlet (spring mvc)? Show this: the smallest DispatcherServlet spring mvc example you can type. Trap: only saying “DispatcherServlet spring mvc” with no example.

Code Examples for DispatcherServlet

DispatcherServlet — working example

// Topic: DispatcherServlet
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
class TopicController {
  @GetMapping("/api/topic")
  String topic() {
    return "Spring Boot: DispatcherServlet";
  }
}

DispatcherServlet: GET /api/topic returns this title string.

How to Explain DispatcherServlet to an Interviewer

What is DispatcherServlet (spring mvc)?

Used for a short DispatcherServlet spring mvc example a small REST app Not just the heading

Give one small example of DispatcherServlet (spring mvc).

the smallest DispatcherServlet spring mvc example you can type The front controller for every incoming request

What mistake do beginners make with DispatcherServlet (spring mvc)?

only saying “DispatcherServlet spring mvc” with no example Show the fix

Where do you use DispatcherServlet (spring mvc)?

a small REST app a short DispatcherServlet spring mvc example