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How can I use Java to limit the session in one browser tab

I do not want the HTTP user session to be shared between browser tabs.

For example, if a user is logged in in a single tab, he can see all of his profile data. However, when the same URL comes from another new tab (tab 2), it also displays the same user profile information.

I want to limit the user session to only opening the first tab. If another tab is open, the session of the first tab should not be used. Is there a way this can be achieved?

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3 answers

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login .

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  • login, , session server code ,

    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

    response.setCharacterEncoding("UTF-8");
    response.setContentType("UTF");
    PrintWriter out = response.getWriter();
    request.setCharacterEncoding("UTF-8");

    String name = request.getParameter("name");
    String password = request.getParameter("password");
    boolean loginStatus ;

    if( (name != null && name.equals("human")) && (password != null && password.equals("human")) ){
        loginStatus = true;
        HttpSession session = request.getSession();

        String status = (String)session.getAttribute("status"); 

        if(status != null && status.equals("loggedin")){

            // if status is not null , you can justify that , the user is already loggedin in the same session

            response.sendRedirect("redirect.jsp");

        }else{

            // If the user is trying to login first time,This will work

            // do your login work here

            if(loginStatus){
            session.setAttribute("status","loggedin"); 
            RequestDispatcher rd = request.getRequestDispatcher("success.jsp");
            rd.forward(request, response);
            }
        }
    }else{

        System.out.println("Authentication failed !");
        response.sendRedirect("fail.jsp");
    }

}

redirect.jsp ,

<!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>Calculator</title>
</head>

<script type="text/javascript"></script>

<body>
    <h1 style="color:red;"> You are already in logged in state </h1>

</body>

</html>

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! sessionID .

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, <input>:

<input type="hidden" name="session" value="123"/>

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Source: https://habr.com/ru/post/1531283/

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