Start Android validating saxparser

Android validating saxparser

There are two types of Validators in Struts2 Validation Framework.

Non-field validators are mostly domain specific and therefore offer custom implementations.

The most important standard non-field validator provided by XWork is Expression Validator.

Note that this file should be present in the same package as of action class. All you have to do is to add validate=”true” in form tag in your JSP file.

Create file Customer in package net.viralpatel.struts2. For example open and add validate=”true” in form tag.

Open the file which will be present under resources folder.

And add following content between Note that we are mapping the Customer Action class with name customer.

Create two new JSPs We have created file which will display Customer form. Following will be the validations rules: In order to define validation logic for particular form, we first have to create an XML file which will hold this data. Note that the validations xml file contains different field-validators.

But we don’t have link to this page from our web application. Struts2 define a specific naming convention in defining validation xml files. So for our application we will create a file Customer It is very easy to add Client Side validation or Java Script validation to any form in Struts2.

A validator, in contrast, is more generic and can do validations in the full action context, involving more than one field (or even no field at all) in validation rule.

Most validations can be defined on per field basis.

I strongly recommend you to go through the previous articles in case you are new to Struts2.