Hi,
I made the following changes in my Action class and got my save to work.
HttpSession session = request.getSession();
TestGridForm testGridForm = (TestGridForm)session.getAttribute(
"testGridForm" );
However, while trying to debug my problem I found I get 3 ActionForm Beans
created when I only expected 1.
In my jsp I have the following:
<jsp:useBean id="testGridForm" class="com.qspgroup.utc.TestGridForm"
scope="session" />
I have added scope="session to the logic:iterate tag e.g.
<struts_logic:iterate id="element" name="testGridForm" property="data"
scope="session" >
On the page where I display the results I also have:
<jsp:useBean id="testGridForm" class="com.qspgroup.utc.TestGridForm"
scope="session" />
I expected all the above to refer to the session scoped bean "testGridForm",
so why are 3 beans created?
Richard.
-----Original Message-----
From: Richard Murray [mailto:[EMAIL PROTECTED]]
Sent: Thursday, May 10, 2001 9:45 AM
To: '[EMAIL PROTECTED]'
Subject: RE: How do you use indexed properties with html:input?
Turgay,
Thanks for your help, I've tried something similar to your example, but I'm
still having some trouble. I've probably missed something obvious as I'm
new to struts & JSP.
In my jsp I've got the following:
<%@ page import="com.qspgroup.utc.TestGridForm" errorPage="fcerror.jsp" %>
<%@ taglib uri="/WEB-INF/utctags/fcutc.tld" prefix="fcutc" %>
<%@ taglib uri="/WEB-INF/lib/struts/struts-bean.tld" prefix="struts_bean" %>
<%@ taglib uri="/WEB-INF/lib/struts/struts-html.tld" prefix="struts_html" %>
<%@ taglib uri="/WEB-INF/lib/struts/struts-logic.tld" prefix="struts_logic"
%>
<jsp:useBean id="testGridForm" class="com.qspgroup.utc.TestGridForm"
scope="session" />
........
........
<tr>
<% int i=0; %>
<struts_logic:iterate id="element" name="testGridForm" property="data" >
<td>
<input type="text" name="<%= "data" + i %>" size="10"
value="<struts_bean:write name="element"/>">
</td>
<% i++; %>
</struts_logic:iterate>
</tr>
My action class is as follows:
public ActionForward perform( ActionMapping mapping, ActionForm form,
HttpServletRequest request,
HttpServletResponse response ) throws
IOException, ServletException
{
if ( form == null )
{
form = new TestGridForm();
}
TestGridForm testGridForm = ( TestGridForm )form;
for ( int i = 0; i < testGridForm.getData().length; i++ )
{
if ( request.getParameter( "data" + i ) != null )
{
testGridForm.setData( i, request.getParameter( "data" + i )
);
}
}
return ( mapping.findForward( "success" ));
}
As you can see It doesn't do a lot. My ActionForm class creates dummy data
and contains and contains get/set methods as shown below:
public class TestGridForm extends ActionForm
{
String[] data = { "Rail", "Fridges", "Hay", "1", "2", "3", "4", "5",
"6", "7", "8", "9", "10", "11", "12", "13" };
public String[] getData()
{
return data;
}
public String getData( int i )
{
return data[i];
}
public void setData( String[] data )
{
this.data = data;
}
public void setData( int i, String d )
{
data[i] = d;
}
My data gets displayed OK. On success I go to testgrid.jsp but this keeps
displaying the original data. I've checked the tomcat log files and the new
data is being sent as request parameter so I don't understand why the new
data isn't saved in my bean.
e.g. 2001-05-10 09:21:20 - Request Params:
2001-05-10 09:21:20 - data2 = 30
2001-05-10 09:21:20 - data1 = 20
TestGrid.jsp is as follows:
<%@ page import="com.qspgroup.utc.DataCaptureDemo" errorPage="fcerror.jsp"
%>
<jsp:useBean id="testGridForm" class="com.qspgroup.utc.TestGridForm"
scope="session" />
<html>
<head>
<title>Test JSP</title>
</head>
<body>
<h2>Test JSP Page</h2>
<%
out.println( "<br>data in 1st cell is "+ testGridForm.getData( 0 )
);
out.println( "<br>data in 2st cell is "+ testGridForm.getData( 1 )
);
out.println( "<br>data in 3rd cell is "+ testGridForm.getData( 2 )
);
%>
</body>
</html>
Sorry to swamp you with info, I can't seem to figure this out, although I'm
sure I've missed something obvious here.
Thanks.
Richard.
-----Original Message-----
From: Turgay Zengin [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, May 09, 2001 1:13 PM
To: [EMAIL PROTECTED]
Subject: Re: How do you use indexed properties with html:input?
Hi,
I *guess* that the html:xxxx tags require a form bean (please correct me if
this is wrong) so they won't work with dynamically created page elements
like input text fields.
I did the following and it works, got the idea from Scott Walter (thanks) -
see http://www.mail-archive.com/struts-user@jakarta.apache.org/msg06972.html
There may be a better solution to this, if there is, I would like to know.
Background: "dbconnection" is a bean I use to keep the session's database
connection, and other objects. wpLaborEntries is a vector holding objects of
type WpLabor.
In my jsp page I create input text fields like this:
<FORM METHOD="POST" ACTION="UpdateWoplan.do">
<% int i=0; %>
<input type="submit" value="Update_Fields">
<table border="1" cellpadding="0" cellspacing="0" align="center">
<logic:iterate name="dbconnection" property="wpLaborEntries"
id="wpl" type="com.tz.maximo.woplan.WpLabor" >
<tr>
<td><INPUT TYPE="text" NAME="<%="craft"+i%>" size="5"
value="<bean:write name="wpl" property="craftqty"/>"></td>
<td><INPUT TYPE="text" NAME="<%="lhrs"+i%>" size="5"
value="<bean:write name="wpl" property="laborhrs"/>"></td>
<td><INPUT TYPE="text" NAME="<%="w1"+i%>" size="5"
value="<bean:write name="wpl" property="wpl1"/>"></td>
<td><INPUT TYPE="text" NAME="<%="w2"+i%>" size="5"
value="<bean:write name="wpl" property="wpl2"/>"></td>
</tr>
<% i++; %>
</logic:iterate>
</table>
</FORM>
So, the key point is, giving a "consistent" name for each input text field.
And, in my action class, I get the values like this:
public ActionForward perform(ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response)
{
HttpSession session = request.getSession();
OracleConnBean
dbconn=(OracleConnBean)session.getAttribute("dbconnection");
for(int i=0;i<dbconn.getWpLaborEntries().size();i++){
WpLabor wplx=(WpLabor)dbconn.getWpLaborEntries().get(i);
if(request.getParameter("craft"+i)!=null)
wplx.craftqty=request.getParameter("craft"+i);
if(request.getParameter("lhrs"+i)!=null)
wplx.laborhrs=request.getParameter("lhrs"+i);
if(request.getParameter("w1"+i)!=null)
wplx.wpl1=request.getParameter("w1"+i);
if(request.getParameter("w2"+i)!=null)
wplx.wpl2=request.getParameter("w2"+i);
}
dbconn.updateValues();
if (dbconn.successfulQuery=="true") {
return mapping.findForward("success");
}
else {
return mapping.findForward("failure");
}
}
Hope this helps (and it is clear!)...
Turgay.
>From: Richard Murray Subject: How do you use indexed properties with
>html:input? Date: Tue, 08 May 2001 08:44:41 -0700
----------------------------------------------------------------------------
----
>Hi,
>I've got the following property:
> String[] data.
>I want to iterate the array and display each String in a text input >field
>in
>a table. I can get the data to display using iterate and a bean:write >tag
>as
>follows:
><struts_logic:iterate id="element" name="testGrid" property="data" >
> <td><struts_bean:write name="element" /></td>
></struts_logic:iterate>
>I can't get it working with a text input field ( html:text ). I've >tried
>the following and get javax.servlet.jsp.JspException: No getter method >for
>property element of bean org.apache.struts.taglib.html.BEAN
>I want to use property="data", but how can I can specify which element >of
>the array to output and save on an update?
><struts_logic:iterate id="element" name="testGrid" property="data" >
> <td><struts_html:text property="element" /></td>
></struts_logic:iterate>
>Hope someone can help.
>Richard.
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