I'm passing a List list and want to retrieve it in jsp through the request.getAttribute ("key"):
@Override
protected doGet(HTTPServlet request, HTTPServletResponse response)
throw new ServletException {
List<Hotel> hotel=Hotel.listar();
request.setAttribute("key", hoteis);
RequestDispatcher rd=request.getRequestDispatcher("./hotel/exibe_hoteis.jsp");
rd.forward(request, response);
}
In jsp I do:
Good afternoon André Nascimento,
To recover the list in the request.getAttribute(); attribute, there are two ways.
Using Scriptlets
Your code will look something like this:
<% List hoteis = (List) request.getAttribute("key"); %>
At this point you will already have access to the hotels through the variable hoteis .
Dai just iterate all the hotels inside a for and display them for the user.
<table>
<thead>
<th>Nome do hotel</th>
<th>Preço da estadia</th>
</thead>
<tbody>
<% for(int i = 0; i < hoteis.size(); i++) {%>
<tr>
<td><%= hoteis.get(i).getNomeHotel() %></td>
<td><%= hoteis.get(i).getPrecoEstadia() %></td>
</tr>
<%}%>
</tbody>
</table>
I'm assuming that your hotel class has the attributes: hotel name and precoEstadia , so include in the code, but you can use your own attributes.
Using the JSTL framework
To run a for loop within JSTL you use the <c:forEach></c:forEach>
Your code will look something like this:
<table>
<thead>
<th>Nome do hotel</th>
<th>Preço da estadia</th>
</thead>
<tbody>
<c:forEach items="${requestScope.hoteis}" var="hotel">
<tr>
<td>
${hotel.nomeHotel}
</td>
<td>
${hotel.precoEstadia}
</td>
</tr>
</c:forEach>
</tbody>
</table>
Done, this way you will be able to view all items normally.
I hope I have helped.