How to display data from an arraylist of more than one bean on jsp page using scripting or jsp tags?

[James Haville]

Hello,

I'm creating a project management website and have come across a problem. I can obtain the desired result using a scriptlet in a jsp but I would like to write the code in the servlet(controller). I have an arraylist of projectbeans of which I want to display all the information of when a client clicks on the projects button - i.e. - they will get the project id, date, and name of all the projects they are involved in.

Heres my code for the scriptlet in projects.jsp that works:

        
<% ClientBean cb = new ClientBean();

       if (session.getAttribute("currentClient") != null){
            cb = (ClientBean) session.getAttribute("currentClient");
           }
        int id = cb.getId();
        ProjectFunction pf = new ProjectFunction();
        ArrayList <ProjectBean> ls = new ArrayList();
        ls = pf.getProjectsByClientID(id);

        for (int i=0;i<ls.size();i++){

            out.println("ProjectID:" + ls.get(i).getId());
            out.println("Project Name:" + ls.get(i).getProject_name());
            out.println("Start Date:" + ls.get(i).getDate_created());

            }


%> 

However I would like to write it in my projectsServlet and have some el scripting or jsp tags to display the information in my jsps

i.e. ${projectDetails} or jsp:useBean "projectDetails" etc etc

I can do it for one bean in the arraylist but I can not work out how to do it when there is more than one...

here is my lame attempt

        

 if (s.getAttribute("currentClient") != null){
            cb = (ClientBean) s.getAttribute("currentClient");
           }
        int id = cb.getId();
        ProjectFunction pf = new ProjectFunction();
        ArrayList <ProjectBean> ls = new ArrayList();
        ls = pf.getProjectsByClientID(id);
        int size = ls.size();

        if (size == 1){
  
            s.setAttribute("projectDetails", ls);
            s.setAttribute("size", 1);  
    }
        if (size == 2){

          
            s.setAttribute("projectDetails", ls);
            s.setAttribute("size", 2);
    


    }
        
 response.sendRedirect("projects.jsp");   

and then I was thinking about displaying the project details based on the size of the arraylist but I still come back to my original problem...

In summary how do I display data from more than one bean in an arraylist of beans on my jsp page using scripting or jsp tags? I fear this is very simple but it has stumped me.

Thanks James

[David Newton]

JSTL's <c:forEach>

[James Haville]

Yep all done. Thanks for your help...

My new code:

    
<center>
<table border="1">
<c:forEach var="project" items="${projectDetails}">
    <tr>
        <td> Project ID:</td>
        <td> Date Created: </td>
        <td> Project Name: </td>
    <tr>
<td><c:out value = "${project.id}"/></td>
<td><c:out value="${project.date_created}" /></td>
<td><c:out value="${project.project_name}"/></td>
</tr>
</c:forEach>
</table>
</center>

[David Newton]

Glad you got it working :)

[Michael Angstadt]

It looks like your bean has a Date object. You can use the <fmt:formatDate> JSTL tag to format Dates.

<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
<fmt:formatDate value="${project.date_created}" pattern="MM/dd/yyyy" />