Untitled

JSP stranica
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1" isELIgnored="false"%>
    <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<form action="/libraryWeb/GetZaduzenja" method="get">
Clanski broj: <input type="text" name="clanskiBroj">
<input type="submit" value="Ucitaj zaduzenja">
</form>

<c:if test="${!empty clan}">


		<select name="zaduzenje">
			<c:forEach var="zad" items="${clan.zaduzenjas}">
				// ovdje nisam siguran kako da dva atributa ispise ja sam zamislio da to bude link da pozove servlet i onda se vrati
				<option><a href="/libraryWeb/Razduzi?idZad=${zad.id}">${zad.datumZaduzenja} ${zad.primerak.invBroj} </a></option>
			</c:forEach>
		</select>

</c:if>

</body>
</html>

servlet GetZaduzenja

protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		String clanskiBroj = request.getParameter("clanskiBroj");
		Integer clanskiBrojInt = Integer.parseInt(clanskiBroj);
		Clan c = new ClanManager()
			.getNerazduzenaZaduzenjaZaClana(JPAUtil.getEntityManager(), clanskiBrojInt);
		request.setAttribute("clan", c);
		request.getSession().setAttribute("clanskiBroj", c.getClanskiBroj());
		RequestDispatcher rd = request.getServletContext().getRequestDispatcher("//razduziClana.jsp");
		rd.forward(request, response);


	}


servlet Razduzi

	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		String idZaduzenja = request.getParameter("idZad");
		EntityManager em = JPAUtil.getEntityManager();
		boolean ok = new ClanManager().razduzi(em, Integer.parseInt(idZaduzenja) );
		Clan c = new ClanManager()
			.getNerazduzenaZaduzenjaZaClana(JPAUtil.getEntityManager(),
					(Integer)request.getSession().getAttribute("clanskiBroj"));
		request.setAttribute("clan", c);
		RequestDispatcher rd = request.getServletContext().getRequestDispatcher("//razduziClana.jsp");
		rd.forward(request, response);
	}