This is to prevent attacks, bad data, and simple user error.
This tutorial will explain the basics of setting up validation with Spring MVC.
In this section, we will see how to make use of Spring’s Validation services with the help of an example.
Generally if ausername and password are both provided than authentication is needed, but in some cases apassword is not [email protected] Returns a boolean value that specifies if the provided objects object provides enoughdata to authenticate with. The option set, the update operation will be ignored and the callback executed without sending the command to Mongo DB so as to prevent accidently overwritting documents in the collection.I strongly recommend you to go through the previous articles in case you are new to Struts2.In this article we will learn how to leverage Struts2 Validation Framework in an application.In this article, we will see the usage of Spring Validators.Spring provides a simplified set of APIs and supporting classes for validating domain objects.