JSP Parameter Passing Issue

Question

My page flow is like,

Jsp1 -> Jsp2 -> ... -> Servlet -> JspN -> ...

where, Jsp1 is log in page where user has to give password and username. Now, I want to use username and password value in servlet page. Is it possible to get those value in servlet without passing parameters from Jsp1 to Jsp2 .... to Servlet?

adarshr adarshr · Accepted Answer · 2012-01-03T11:17:01

You can set them in session in Jsp2 stage. Get the parameters from request and set them in session as so:

<%
    session.setAttribute("username", request.getParameter("username"));
    session.setAttribute("password", request.getParameter("password"));
%>

To be able to do this, your Jsp1 should have fields defined with the same names as the request parameters.

<input type="text" name="username"/>
<input type="password" name="password"/>

Then in the Servlet, you can simply read them as so:

public void doGet(HttpServletRequest request, HttpServletResponse response) {
    HttpSession session = request.getSession();

    String username = session.getAttribute("username");
    String password = session.getAttribute("password");
}

JSP Parameter Passing Issue

2 Answers