The Complete Guide to Spring 6 and Spring Boot 3/

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HTML Forms

HTML Forms

Learn how to read and process form data in Spring MVC application.

We'll cover the following...

In this lesson, we will set up a form, which will prompt the user to enter a player’s name. When the user clicks the "Submit" button, our Spring MVC application will show a page containing the name entered by the user. Later, we will add functionality to show details of the player entered by the user.

A controller can have multiple request mappings. We will add methods to the TennisPlayerController to handle different request mappings. We will map the URL showPlayerForm to a method that displays the form and processPlayerForm to a method that directs the user to the player details page.

Controller method to show the form

The TennisPlayerController class is shown below. It is annotated with @Controller which tells Spring that this class will handle web requests.

@Controller

public class TennisPlayerController {



	@RequestMapping(value = "/")

	public String welcome() {

		return "main-menu";

	}

}
TennisPlayerController class

First, we need a method that will show the form to the user. We will create a method named showForm(). The /showPlayerForm URL maps to this method by virtue of the @RequestMapping annotation.

@RequestMapping("/showPlayerForm")

public String showForm () {

  return "search-player-form";

}
Creating a method for /showPlayerForm URL

Spring will call the view resolver which will resolve search-player-form to /WEB-INF/views/search-player-form.jsp. ...