Populate Collection from Struts2 Form Submission

Question

I\'m trying to populate a List of beans from a form:

public class Foo {
   public String attr1;
   public String attr2;
}

public class Bar {
   public List&         


        

Answer 1

If I understand it correctly, you just want different name for each hidden field?

<s:iterator value="bars" status="key">
    <s:hidden name="bar.foos[%{#key.index}].attr1" value="attr1" />
    <s:hidden name="bar.foos[%{#key.index}].attr2" value="attr2" />
</s:iterator>

which should give you the equivalent of

<input type="hidden" name="bar.foos[0].attr1" value="some value" />
<input type="hidden" name="bar.foos[0].attr2" value="some other value" />
<input type="hidden" name="bar.foos[1].attr1" value="some value" />
<input type="hidden" name="bar.foos[1].attr2" value="some other value" />

If you have proper getter/setter, it should set all the values when the form is being submitted.