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https://issues.apache.org/jira/browse/WW-5046?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lukasz Lenart closed WW-5046.
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Resolution: Not A Problem
{{input}} method is treated as a special kind of method, which can be used to
handle an input form, an entry point to gatterhing user's data, That's why it's
excluded in the default stack, see documentation:
https://struts.apache.org/core-developers/validation.html#turning-on-validation
https://github.com/apache/struts/blob/master/core/src/main/resources/struts-default.xml#L331-L333
If you need a different behaviour, please define your own default stack (which
is a good practice) and redefine {{excludeMethods}}. Please notice that this is
also by default a global allowed method:
https://github.com/apache/struts/blob/master/core/src/main/resources/struts-default.xml#L386
https://struts.apache.org/core-developers/action-configuration.html#strict-method-invocation
> Validation framework won't work when running a method named input() in an
> Action class
> --------------------------------------------------------------------------------------
>
> Key: WW-5046
> URL: https://issues.apache.org/jira/browse/WW-5046
> Project: Struts 2
> Issue Type: Bug
> Components: Core Actions
> Affects Versions: 2.3.37
> Environment: Windows 10
> Struts 2.3.37
> Eclipse Oxygen
> Tomcat 9.0.24
> Reporter: Ivan Shih
> Priority: Major
> Labels: easyfix
>
> When running a method named input() in an Action class, the build-in
> validation framework won't work, i.e., the validation messages doesn't get
> displayed, no validation function is performed:
> BookAction Class with a method named input() :
> {code:java}
> public class BookAction extends ActionSupport implements ModelDriven<Book> {
> private Book book = new Book();
> @Override public Book getModel() {
> return book;
> }
> public String input() {
> return SUCCESS;
> }
> }
> {code}
> Book Class:
> {code:java}
> public class Book {
> private String isbn;
> // get and set method
> ...
> }
> {code}
>
> BookAction-validation.xml:
>
> {code:java}
> <validators>
> <validator type="requiredstring">
> <param name="fieldName">isbn</param>
> <message>ISBN is empty!!!</message>
> </validator>
> </validators>
> {code}
>
> Results:
> The build-in validation framework won't work, i.e., the validation messages
> doesn't get displayed, no validation function is performed.
>
> How to Fix:
> Changing the method name to inputs() or else in BookAction Class :
> {code:java}
> public class BookAction extends ActionSupport implements ModelDriven<Book> {
> private Book book = new Book();
> @Override public Book getModel() {
> return book;
> }
> // Changing the method name to inputs() or else fix the issue
> public String inputs() {
> return SUCCESS;
> }
> }
> {code}
>
>
>
>
>
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