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Struts: Question about Form Validation Using XML example

+2 votes
516 views

I can't see what's going on behind the scenes in this example so I'm asking for help in order to understand the Strtus process.

I run the example, leave empty "First Name" to make validation fail, and submit. Then go back to index:

http://localhost:8084/form_xml_validation

and click on edit. But "First name" is reset with the original value. It should be empty because Person instance is managed statically. In fact, other examples (preparable, exclude params) behave as expected, and return an empty String for the filed left empty.

The thing here is than I'm not understanding how Struts works here. I would appreciate if you help me with this.

Example is here:
http://struts.apache.org/release/2.3.x/docs/form-validation-using-xml.html

Code for checkout here:
http://svn.apache.org/repos/asf/struts/sandbox/trunk/struts2examples/

Examples doing as expected:
http://struts.apache.org/release/2.3.x/docs/exclude-parameters.html
http://struts.apache.org/release/2.3.x/docs/preparable-interface.html

posted Oct 2, 2013 by Sonu Jindal

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1 Answer

+1 vote

Maybe your browser is filling the field and it has nothing to do with Struts validation? Check that in anonymous mode.

answer Oct 3, 2013 by Bob Wise
Same behavior in private mode.
I believe it has to do with Prepare (preparable and exclude-paras use  Preparable) and interceptors stack, but I'm not sure. Still a mystery  for me, because the code is almost identical.
commented Oct 4, 2013 by Sheetal Chauhan
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