How do you iterate through a list of objects? - struts2

Question

I have a User class that has a String username in it. I have a list of users that I'm trying to display in a table using
<s:iterator value="users" id="list">
<tr>
<td><s:property value="#list.username" /></td>
<td></td>
<td></td>
<td></td>
</tr>
</s:iterator>
The rows are being displayed the right number of times, so it's iterating through my list properly. However, I don't know how to access the username property to display it. Obviously what I have above isn't correct... Any ideas?

Answer 1

First, in Struts2 2.1.x the id attribute is deprecated, var should be used instead (ref)
I think the # is misused there. Besides, "list" seems a bad name for what is to be assigned in each iteration... I think "user" is more appropiate.
IIRC, the syntax is
<s:iterator value="users" var="user">
... <s:property value="#user.username" />
</s:iterator>
Further, you don't need to assign the current item in the iterator for such a simple case. THis should also work:
<s:iterator value="users">
... <s:property value="username" />
</s:iterator>
Also you might want to try this:
<s:iterator value="users">
... <s:property /> <!-- this outputs the full object, may be useful for debugging -->
</s:iterator>
UPDATE: I corrected the bit about the #, it was ok.

Answer 2

You can do like this
<s:iterator value="users" >
<tr>
<td><s:property value="username" /></td>
<td></td>
<td></td>
<td></td>
</tr>
Observe that no need of #list there.
The other way is
<s:iterator value="users" var="user">
<tr>
<td><s:property value="#user.username" /></td>
<td></td>
<td></td>
<td></td>
</tr>
insetead of id give it as var.Since
we don’t specify a scope for var, this new user reference exists in
the default “action” scope—the ActionContext. As you can
see, we then reference it with the # operator.

Answer 3

You can use JSTL with Struts. It has a <c:forEach> tag in its core library that will allow you to iterate through a list or any other collection easily.

Answer 4

<s:iterator value="users" var="eachUser">
<div>
<s:property value="#eachUser.username">
</div>
</s:iterator>
Check this for more such examples

Answer 5

Struts 1.x takes care of your inner properties like this.
< logic:iterate id="user" name="userList">
< bean:write property="${userName}"/ >
< /logic:iterate>
I guess as per ur example u can have. You may not need "#list." again in the value attribute
< s:iterator value="users" id="list">
< s:property value="userName" />
< / s:iterator>