Get textfield value and put it session JSP

Question

Hi all .
I have issuse with Session . this the code . file name (order.jsp)
%>
<p>Compute</p>
<table width="354" border="1">
<tr>
<td width="36" scope="col"> </td>
<td width="148" scope="col">Computer Type</td>
<td width="148" scope="col">Price</td>
</tr>
<%
while (rset.next ()) {
%>
<tr>
<td><input type="text" name="compno" value="<% out.print (rset.getString ("COMPUTERID"));%>"</td>
<td><input type="text" name="compty" value="<% out.print (rset.getString (2));%>"</td>
<td><input type="text" name="comppr" value="<% out.print (rset.getString (3));%>"</td>     
*<td width="61"><a href= "detailorder.jsp?<% session.setAttribute("comp", request.getParameter("compno"));*
*     String str=(String)session.getAttribute("comp");     *
*     System.out.println("file name is"+str);%>=">Add <%=str%></a></td>* </tr>
<%
rset.close();
pstmt.close();
%>
my problems is that I would to get "COMPUTERID" value and put it in "comp" and save it as session .
please help
raid
Edited by: raid200 on Apr 23, 2008 12:40 PM
Edited by: raid200 on Apr 23, 2008 12:41 PM

Answer 1

Copied from a newly opened topic:
raid200 wrote:
Hi
Thanks for your help . I can take one textfield value and send it to another jsp file
BUT I would to take all textfield in the row that I would use it .
Code .
<p>Compute</p>
<table width="354" border="1">
<tr>
<td width="36" scope="col"> </td>
<td width="148" scope="col">Computer Type</td>
<td width="148" scope="col">Price</td>
</tr>
<%
while (rset.next ()) {
%>
<tr>
<td><input type="text" name="compno" value="<% out.print (rset.getString ("COMPUTERID"));%>"</td>
<td><input type="text" name="compty" value="<% out.print (rset.getString (2));%>"</td>
<td><input type="text" name="comppr" value="<% out.print (rset.getString (3));%>"</td>     
<td width="61"><a href=" "detailorder.jsp?compno=<%= rset.getString("COMPUTERID")%">>                               <%session.setAttribute("compna",rset.getString(2));
                              session.setAttribute("comppr",rset.getString(3)); %>"> BUY ME! </a></td>
</tr>
In the detailorder.jsp::::::
String selectedCompId = request.getParameter("compno");
     session.setAttribute("comp", selectedCompId);
String computerid=(String) session.getAttribute("comp");
String computername=(String) session.getAttribute("compna");
String computerprice=(String) session.getAttribute("comppr");
in the detailorder.jsp ("""""the compna and comppr give the last record in formation""""""")
Please Help.
Raid</a>
You question shows that you still don't understand how JSPs work.
Try reading [this article|http://www.javaranch.com/journal/200510/Journal200510.jsp#a1].
You seem to think that the session.setAttribute call is done when you click the link. This is definitely NOT the case.
All of the java code runs (including all of those session.setAttribute) calls, and produces HTML. So it will store each element into session, overwriting the previous one.
To get information from one jsp to another you either pass parameters or use session attributes.
I showed you how to pass the selected id as a parameter, that you could retrieve in the next JSP.
So you can get the compid.
You could pass the other values as parameters as well - thats one approach.
Alternatively you could use the id to look up the data from the database again.
Alternatively you could store the +entire list+ of computers in the session, se the selected id to determine which one of those was selected, and get the answers like that.
The full solution to my mind would be to write a bean method that executes the query, and generates a List of java Objects representing your information.
You can then put that list in the session, and use it to both generate this JSP and get the information once the user selects one line.
Hope this helps,
evnafets