CODEWITHSUNDEEP
javahtmlservlets
SemperAmbroscus
SemperAmbroscus

Reputation: 1398

How to make an html change the value of a variable in java?

I used this format despite warnings:

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

        PrintWriter out = response.getWriter();

        out.println("<html>");
        //code
        out.println("</html>");
        out.close();
    }

How do I change the value of a variable when a button is pressed?

EX:

out.println("<button><a href = 'home' action = "isLoggedIn = false">Logout</a></a>");

This would be run from the homepage and basically refresh the page except the user would be logged out. What is the proper way of doing so?

Upvotes: 0

Views: 69

Answers (1)

Gundamaiah
Gundamaiah

Reputation: 786

After user login,you need to create session and Once the user click the Logout Button,you need to invalidate by using session.invalidate() and then redirect to home page without any session.

Follow the below for reference

Servlet Login and Logout

This one use only servlets.I think this will help you :)

Upvotes: 1

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