Java Servlet Login Page Program

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Hey,
I have an assignment of creating a login page.if the username and password is dolly it should redirect me to another servlet page telling valid user else it should show invalid user.
This is what i have done.The problem is i do not know how to redirect it to the other page.
It is redirecting to the other page but i want whether a valid or invalid user to be
displayed over there.
Please help me out.

Java

package servlets;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@WebServlet(name = "NewServlet", urlPatterns = {"/NewServlet"})

public class NewServlet extends HttpServlet {
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {

            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet NewServlet</title>");
            out.println("</head>");
            out.println("<body>");
            out.println("<form action=http://localhost:9999/WebApplication4/NewServlet1 method=GET>");
            out.println("Login Form");
            out.println("<br>");
            out.println("Enter Username:<input type=text name=t1>");
            out.println("<br>");
            out.println("Enter password:<input type=password name=t2>");
            out.println("<br>");
            out.println("<input type=submit  value=submit");
             out.println("<br>");
            out.println("</form>");
            out.println("</body>");
            out.println("</html>");
        } finally {
            out.close();
        }
    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
        
        PrintWriter pw=response.getWriter();
          String user=request.getParameter("t1")  ;
       
              String pass=request.getParameter("t2");
          if(user.equals("dolly") && pass.equals("dolly"))
             pw.println("Valid user");
             else
            pw.println("Invalid user");


              
          
    }
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
        
          
    }
    public String getServletInfo() {
        return "Short description";
    }
}

[torsten]added code block[/torsten]

Posted 28-Dec-12 8:04am

Member 8512273

Updated 28-Dec-12 8:23am

TorstenH.

v2

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Member 8512273 28-Dec-12 14:13pm

I have used annotations in the above code.So there is no need of web.xml

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TorstenH. · Answer 1 · 2012-12-28T08:27:00

Shouldn't the server validate the name & password? I guess so.

So let the server answer with a suitable return value:
In case of true / "pass" you should grant access, in case of false / "no pass" you should present another page.

EDIT:

So you do NOT do Server-Requests. Then you should also not use a HTTPServlet.