error on clicking submit button: HTTP Status 404 - Not Foundtype Status report
messageNot Found
descriptionThe requested resource is not available.
GlassFish Server Open Source Edition 4.1.1
getting this error
Here's the codeindex.html
Insert Data
<!-- Give Servlet reference to the form as an instances GET and POST services can be according to the problem statement--><p>ID:</p> <!-- Create an element with mandatory name attribute, so that data can be transfer to the servlet using getParameter() --><br/> <p>String:</p> <br/><br/><br/> InsertData.java import java.io.IOException; import java.sql.DriverManager; import java.io.PrintWriter; import java.sql.Connection; 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 Name@WebServlet("/InsertData")public class InsertData extends HttpServlet { private static final long serialVersionUID = 1L;protected void doPost(HttpServletRequest request,HttpServletResponse response)throws ServletException, IOException{ try { Class.forName("com.mysql.jdbc.Driver");Connection con=DriverManager.getConnection("jdbc:mysql://localhost:3306/student","root","root"); PreparedStatement st = con.prepareStatement("insert into demo values(?, ?)"); // For the first parameter, // get the data using request object // sets the data to st pointer st.setInt(1, Integer.valueOf(request.getParameter("id"))); // Same for second parameter st.setString(2, request.getParameter("string")); // Execute the insert command using executeUpdate() // to make changes in database st.executeUpdate(); // Close all the connections st.close(); con.close(); // Get a writer pointer // to display the successful result PrintWriter out = response.getWriter(); out.println("<html><body><b>Successfully Inserted"+"</b></body></html>"); } catch (Exception e) { e.printStackTrace(); } } }
please provide the solution to my problem