Challenge: Spring MVC Advanced Concepts

Problem statement

Assume you have an existing Spring application for a Pet Adoption system. Your task is to:

• Migrate the application from XML-based configuration to Java-based configuration.

• Add validation to ensure certain fields are required and the pet's age is valid before a new pet is added to the database.

Requirements

To successfully complete this challenge, you need to:

• Implement the MyDispatcherServletInitializer to configure the DispatcherServlet.

• Implement the SpringMVCConfig to replace the XML configuration.

• Add validation annotations to ensure that:

  • ownerName is a required field.

  • age is a positive integer and is a required field.

  • petId follows the specified pattern to only contain uppercase letters, lowercase letters, digits, and hyphens, and it must have at least one of these characters.

• Implement custom validation logic for age to ensure it is a positive number.

Try it yourself

Implement the necessary classes and configurations in the code widget below to achieve the required functionality.