display username.txt

input.html

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Login Page</title>
</head>
<body>
<form method="get" action="HelloServlet">
<pre>
Enter your name: <input type="text" name=t1>
<input type=submit>
<input type=reset>
</pre>
</form>
</body>
</html>
************************************************************************************************************************************************************

HelloServlet.java

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class HelloServlet
*/
public class HelloServlet extends HttpServlet {
private static final long serialVersionUID = 1L;

 /**
 * @see HttpServlet#HttpServlet()
 */
 public HelloServlet() {
 super();
 // TODO Auto-generated constructor stub
 }
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException {
// TODO Auto-generated method stub
PrintWriter pw=response.getWriter();
String s=request.getParameter("t1");
pw.println("<h1>Hello,"+s);
pw.close();
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}
}