[Help]: Struts2 List object validation

最新推荐文章于 2020-12-21 09:30:36 发布

iteye_16620

最新推荐文章于 2020-12-21 09:30:36 发布

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文章标签： JSP

本文链接：https://blog.youkuaiyun.com/iteye_16620/article/details/81649039

本文探讨了在Struts2框架中使用迭代器显示列表属性时遇到的表单验证问题。作者尝试对表单中的每一项进行必填检查及年龄字段的数值验证，但配置未能生效。此外，还提出了如何为未通过验证的字段添加错误样式的问题。

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Now I suffer a problem with s2' validation.

Here is my problem:

In my action,there is a property

List<Peson> persons;

now in jsp, I use iterator like below:
<s:iterator value= "persons " status= "stat ">
<s:textfield label= "%{ 'Person '+#stat.index+ ' Name '} " name= "%{ 'persons[ '+#stat.index+ '].name '} " />
<s:textfield label= "%{ 'Person '+#stat.index+ ' Age '} " name= "%{ 'persons[ '+#stat.index+ '].age '} " />
</s:iterator>

I want to validation user input while submit the form, “name" should not empty, and "age" must be number.

in my validation config file I write like this:
<validators>
<field name="persons[].name">
<field-validator type="requiredstring">
<message key="requiredstring" />
</field-validator>
</field>
<field name="persons[].age">
<field-validator type="short">
<message key="requiredshort" />
</field-validator>
</field>
</validators>

It seems doesn't work.

Besides that, I want to add error style to the filed which doesn't pass the validation. In S1,we can use
<html:text errorStyle="errorStyle" .../>
to achieve this task, but How to do it in S2?