How to retrieve a message into an html page passed from a servelt?

Question

am new to servlet.
i have a Login.html contains a form having username and a password field.when the form is submitted it goes to VerifyServlet for authentication.
now if the user provide the correct username and password i authenticate him into a new servlet called UserhomeServlet which i have already done. but if the password is incorrect i wanted to take him back to the Login.html with a Error message printed on it passed from the VerifyServlet. i dont know how to do that.
pls tell me if you have any idea.

Answer 1

Hi ,
Try the following in your VerifyServlet doPost / doGet method.
//for simplicity i have defined name & pwd in the same file and compared values from the login.html //
//you can implement your logic //
                 if (name.equals(login)&& pwd.equals(pass)){
          //redirect to UserhomeServlet
                      else {
               out.println("Invalid Login");
               RequestDispatcher rd = req.getRequestDispatcher("/html/login.html");
               rd.include(req,res);
     }bye for now
sat