Re: Getting property value from bean in a collection into a script variable

[Bill Siggelkow]

First of all, John, I encourage you to learn JSTL -- really permits you 
to write much cleaner pages yet still do some fairly complicated logic 
on the JSP page.

Okay, to answer your immediate question, you can put a property value 
into a scripting variable using the <bean:define> tag like this:

<bean:define id="lastUpdt" name="cmateList" property="lastUpdated"/>
However, you really should avoid scripting Java in a JSP -- using JSTL 
your fragment could be rewritten something like as:

<c:forEach var="cmateList" items="${classmateList}">
  <br />
  <c:choose>
     <c:when test="${empty cmateList.lastUpdated or
                     cmateList.lastUpdated eq '0000-00-00'}">
         &nbsp;&nbsp;&nbsp;
     </c:when>
     <c:otherwise>*  </c:otherwise>
  </c:choose>
  <%-- Consider using the <c:url> tag here instead --%>
  <a href=BuildClassmateInfoViewAction.do?viewFirstName=<bean:write
     name="cmateList" property="firstName"/>&viewLastName=<bean:write
     name="cmateList" property="lastName"/>><bean:write name="cmateList"
     property="firstName"/> <bean:write name="cmateList"
     property="lastName"/></a><br>
</c:forEach>
-Bill Siggelkow
[EMAIL PROTECTED] wrote:

Hi guys,
I am trying to pull the value from a property in a collection(LinkedList)
stored in the request object and store it in a script variable.  I can
write the property value to the response page using a <bean:write> tag
inside a <logic:iterate> tag, but I can't seem to find a way to get the
value into a script variable.  Below, I tried the <bean:parameter> tag with
no luck (it stores null in the variable lastUpdt).  Any suggestions?  For
collections, do I have to do something more elaborate than using the
bean:parameter tag?
Here's the jsp code.  The collection is stored in the "classmateList"
attribute of the response object.  Within each bean in that collection, I
am trying to take the value of the "lastUpdated" property and store it in
the script variable "lastUpdt".
Thanks!
----------------------------------------------------------------------------------------
<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>
<%@ taglib uri="/WEB-INF/struts-logic.tld" prefix="logic" %>
<div style="text-align: justify;">
<logic:iterate id="cmateList" name="classmateList">
<%
String updatedFlag = "";
%>
<bean:parameter id="lastUpdt" name="lastUpdated" value=""/>
lastUpdated: <%=lastUpdt%><br>
<br>
<%
if (lastUpdt == "" || lastUpdt == "0000-00-00") {
    updatedFlag = "&nbsp;&nbsp;&nbsp";
}
else {
    updatedFlag = "* ";
}
%>
<%=updatedFlag%><a
href=BuildClassmateInfoViewAction.do?viewFirstName=<bean:write
name="cmateList" property="firstName"/>&viewLastName=<bean:write
name="cmateList" property="lastName"/>><bean:write name="cmateList"
property="firstName"/> <bean:write name="cmateList"
property="lastName"/></a><br>
</logic:iterate>
</div>
<br>
<br>
<div style="text-align: center; color: rgb(0, 0, 102);">
    <html:form action="/BuildHomeViewAction">
        <html:submit value="Return to Your Home Page"/>
    </html:form>
</div>

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