回复:Re: how to Validate tabular input.

[张云勇 <ev...@163.com>]

use vistor validator. you can see the sample app shipped with the struts full source download archives.


在2009-02-27，"Wes Wannemacher" <we...@wantii.com> 写道：

On Thursday 26 February 2009 20:04:55 Greg Lindholm wrote:
> I would really like to know the answer as well, how do you validate a list
> of fields with annotations?
>
> let me tweak your example a bit so it will at least work (before
> validation).
> (See http://struts.apache.org/2.x/docs/tabular-inputs.html)
>
> <s:iterator value="myText" status="stat" >
> <s:textfield name="myText[%{#stat.index}]" value="top"/>
> </s:iterator>
>
> public List<String> getMytext() {return mytext;}
> public void setMytext(List<String> mytext) {this.mytext=mytext;}
> private List<String> mytext = new ArrayList<String>();
>

The XML and annotation-based validation doesn't really have support for list-
based (or map-based) properties. With indexed properties, it's best to 
implement a 'validate' method on your action. 

Yes, it's a pain, but, before you file an improvement JIRA, I would suggest 
trying to come up with a patch. I know I, for one, have been patiently waiting 
on JSR-303 before I consider writing improvements to the validation framework.

-Wes

-- 

Wes Wannemacher
Author - Struts 2 In Practice 
Includes coverage of Struts 2.1, Spring, JPA, JQuery, Sitemesh and more
http://www.manning.com/wannemacher


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