How correctly create session on JSP ?

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I create session on JSP and set attribute "userName", but I can get this attribute only on first page. When I go to the next page, attribute "userName" is lost. How can I solve this problem ?

HttpSession session = request.getSession(true);
LoginManager loginManager = new LoginManager();
String name = loginManager.getUserName(request.getParameter("login"),
                request.getParameter("pass"));
view = request.getRequestDispatcher("index.jsp");
session.setAttribute("userName", name);
view.forward(request, response);

I try session.setMaxInactiveInterval(600), but it did not help me.

thanks!

Posted 19-Aug-13 22:41pm

alybin

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thatraja · Answer 1 · 2013-08-22T01:50:00

Solution 1

You forgot to include the next page code.

Anyway here a simple tutorial. JSP Sessions[^]
setAttribute/getAttribute properties used save/access session values.

Posted 22-Aug-13 1:50am

thatraja

Comments

alybin 23-Aug-13 8:18am

My next page code
<%
String name = (String) session.getAttribute("userName");
if (name == null) {
response.sendRedirect("view/jsp/login.jsp");
} else {...
%>

alybin 23-Aug-13 8:25am

I want to save the attribute "userName" before calling 'invalidate' or 'removeAttribute', but it lost after redirect to next page or reload.