Untitled

<!DOCTYPE html>
<html>
<head>
<meta charset="ISO-8859-1">
<title>Employee form</title>
</head>
<body>
<h1>Add Employee</h1><br><br>
<form action = "servlet/EmpDetails" method = "post">

Employee Name : <input type ="text" name = "employee_name"><br><br>
Employee Designation : <input type = "text" name = "employee_Designation"><br><br>
Reporting Manager : <input type = "text" name = "manager_name"><br><br>
<input type = "submit">

</form>

</body>
</html>

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * Servlet implementation class EmpDetails
 */
@WebServlet("/EmpDetails")
public class EmpDetails extends HttpServlet {
    private static final long serialVersionUID = 1L;

    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        response.setContentType("text/html");
        PrintWriter out = response.getWriter();

        String empName = request.getParameter("employee_name");
        String empDesignation = request.getParameter("employee_Designation");
        String manager = request.getParameter("manager_name");

        try {
            Class.forName("com.mysql.jdbc.Driver");
            System.out.println("registered");
            Connection connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/hirarchy_check","root","root@123");
              PreparedStatement ps = connection.prepareStatement("insert into employee_details values(?,?,?)");
              ps.setString(1, empName);
              ps.setString(2, empDesignation);
              ps.setString(3, manager);

              int i=ps.executeUpdate();
              if(i>0)
              out.print("You are successfully registered...");

        }catch(Exception e){System.out.println(e);}
    }
}