Form Data Validation
Explore form data validation in Spring MVC by using the Bean Validation API and Hibernate Validator. Understand how to apply annotations like @NotNull and @Size, enable validation in Spring Boot, handle validation results with BindingResult, and display errors using Spring form tags to ensure reliable user input processing.
Form data validation is the process of ensuring that the data submitted through a web form is accurate, complete, and adheres to specified rules before it is processed or stored. It prevents invalid data from causing errors or inconsistencies in an application. Data validation includes checking if the required fields are not left blank, numbers are within a given range, and data is entered in the correct format. The Standard Bean Validation API is the preferred approach for validation in Spring applications. We will use the Hibernate implementation of the API known as Hibernate Validator.
Enabling validation
To enable validation ...