CODEWITHSUNDEEP
javajspservlets
Matthew
Matthew

Reputation: 867

.jsp dynamic table creation

I am trying to create a dynamic table within .jsp. I have been attempting to do so through scriptlets in the following way (this is pseudocode):

<%
PrintWriter writer = response.getWriter();

writer.println("<table>");

while(records in request object){
    writer.println("<tr>" + request.getAttribute().toString() + "</tr>");
    }

writer.println("</table");
writer.close();
%>

While the above method can and does work, it is both discouraged, and probably not the best way of accomplishing this task.

To my point and question - is there a better way to create such dynamic content?

Upvotes: 0

Views: 5354

Answers (3)

Krystian G
Krystian G

Reputation: 2941

It can be done without scriptlets:

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>

<c:if test="${not empty request.records}">

  <table>
    <c:forEach items="${request.records}" var="record">
       <tr><td> ${record} </td></tr>
    </c:forEach>
  </table>

</c:if>

Upvotes: 2

Faraz
Faraz

Reputation: 6265

You would need to include JSTL dependency on class path, and also configure it in Spring.

If you already have it configured in Spring, then you would create tds dynamically this way:

<table>
<thead>
    <tr>
        <th>Item1</th>
        <th>Item2</th>
        <th>Item3</th>
    </tr>
</thead>
<tbody>
    <c: forEach items="${menus}" var="menu" varStatus="status">
                            <tr>
        <td>${menu.item1}</td>
        <td>${menu.item2}</td>
        <td>${menu.item3}</td>
    </tr>
    </c: forEach>
</tbody>                        
</table >

This ${menus} is a list coming from backend It is a list of POJO that contains 3 fields item1, item2, and item3. You would also need to include c name space in your .jsp file: <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>

There are tons of examples of this on the internet. Just look Spring MVC and JSTL and Table. YOu will find many results.

Upvotes: 1

Janos Vinceller
Janos Vinceller

Reputation: 1266

You can use "out" to print to the response. Why are you doing the first line? Where did you get that?

You could just do the following:

<%
out.println("<table>");

while (records in request object){
    out.println("<tr>" + request.getAttribute().toString() + "</tr>");
}

out.println("</table>");
%>

Upvotes: 0

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