In this chapter, we learned the concept of validation and learned how to enable bean validation in Spring MVC to process forms. We also learned how to set up custom validation using the extension capability of the bean validation framework. After that, we learned how to do cross-field validation using Spring validation. Finally, we learned how to integrate bean validation and Spring validation together.

In the next chapter, we will learn how to develop an application using RESTful services. We will cover the basic concepts of HTTP verbs and try to understand how they are related to standard CRUD operations. We will also cover how to fire an Ajax request and how to handle it.