Use ResultSet object in JSP without JSTL - model-view-controller

Question

I want to pass my query's result i.e ResultSet to JSP just for the display as i am using MVC framework.
My Servlet Code:
Connection c=Connectivity.dbConnect();
PreparedStatement ps=c.prepareStatement("select role from login where userid=? and password=?");
ps.setString(1,userid);
ps.setString(2,pass);
ResultSet rs=ps.executeQuery();
if(rs.next())
{
if(rs.getString(1).equals("admin"))
{
ps=c.prepareStatement("select * from user where userid=?");
ps.setString(1,userid);
rs=ps.executeQuery();
Result r=ResultSupport.toResult(rs);
request.setAttribute("res",r);
rs.close();
c.close();
return mapping.findForward("us");//to User.jsp
}
}
I've used ResultSupport.toResult() to forward it to JSP (forwarded by 'us' mapping) but that requires JSTL code in JSP :
User.jsp -
<c:forEach var="data" items="${requestScope.res.rows}">
<h1>${data.userid}</h1>
<h2>${data.name}</h2>
<h2>${data.password}</h2>
<h2>${data.emailid}</h2>
</c:forEach>
Moreover if i directly pass ResultSet like request.setAttribute("ResultSet",rs); i wouldn't be able to close the connection in JSP.
This Code works fine but i do NOT want to use JSTL/EL or Lists , i want to use scriplets in JSP that can handle Result or ResultSet attribute from Servlet.

Answer 1

You can overcome your issue like this:
1) In your database manipulation class use a POJO to add in results from ResultSet.
Contacts myContact = new Contacts();
myContact.setOffice(rs.getString("office1"));
myContact.setMail(rs.getString("xx#xx.com"));
2) Then use a List to store your results
List<Contacts> myList = new ArrayList<Contacts>();
myList.add(myContact);
3) Pass the list to your request/session Object and close ResultSet/Connection there
request.setAttribute("LIST",myList);
rs.close();
conn.close()
4) In JSP get the List and iterate over it anyway you want
ArrayList<Contacts> myList = (ArrayList<Contacts>) request.getAttribute("LIST");
for(Contacts obj: myList){
out.print(obj.getMail());
....
....
}