jsp and bootstrap cards problem

[obaid abbassi]

I m getting data from data base and showing it in cards
my card alignment is perfect without looping it Im using this logic

<div class="container">


<div class="row">

<div class="col-md-4">first item </div>
<div class="col-md-4">second item </div>
<div class="col-md-4">third item </div>


</div>








</div>

it works perfectly 3 cards in a row but in loop whole cards are vertically shown

<%


 for (int i=0;i<6;i++)
 {
     %>

<div class="row">


 <div class="col-md-4">

item....
 </div>






</div>


     <%}



%>

[Roland Mueller]

The cards are displayed inside a single loop and every iteration of the loop contains a  <div class="row">.

A solution could be two loops where the outer loop loops i in 0 .. number_of_cards / number_of_cards_per_line times and the inner loop places number_of_cards_per_line cards into a single line.

Another principle problem with your code is the usage of scriptlets that are deprecated. Instead you can use JSTL tags in the given case <c:foreach>. Following code is written from memory and untested:

<c:forEach begin="0" end="6" step="3" var="row">   <div class="row">   <c:forEach begin="${row}" end="${row} + 3" >       <div class="col-md-4"></div>   </forEach>  </div> </forEach>  

[Bear Bibeault]

It would have been easier to spot the problem quickly had you just compared the JSP-generated HTML to your hand-written HTML. The browser tools are essential for debugging, be sure to utilize them.

And yeah, Java scriptlets in JSP have been deprecated 22 years. 22 years! There is no excuse for using them in JSP pages at this point (or any point in the past two decades). We often hear: "but I'm just a beginner". If so, learning the correct ways from the start is essential.

[Tim Holloway]

The Bear has been awakend. Scriptlet users beware!

Seriously. One of the worst things about the Internet is how ancient and obsolete information propagates itself long after it should have vanished. Stuff like Scriptlets, using Class.forName() with database drivers, etc.

So listen to the Bear.

And please, Obaid, don't put so many blank lines in your code samples. It makes them very difficult to read. Blank lines are supposed to do just the opposite. When used sparingly.

[obaid abbassi]

This is the code for my servelet

        List<Notes> list= user.readingNotes();
         HttpSession httpSession= request.getSession();
          httpSession.setAttribute("list",list);
        RequestDispatcher ob =request.getRequestDispatcher("notes.jsp");

now my question is instead of using scriplet tag I want to get this in JSTL
I m using to get

<%
    Notes obj=new Notes();
    try {
        List<Notes> notes = (List<Notes>) request.getSession().getAttribute("list");
       for (Notes n : notes) {
.....
%>

[Roland Mueller]

THe forEach loop may also use attributes from sessionScope that are accessed by expression language (EL) expressions:

<c:forEach items="${sessionScope.list}" var="note">    <!-- use ${note} -->   </c:forEach>