Virtual-Class/BackendProcess at main · cocojan87/Virtual-Class · GitHub

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package com.anjani.servlet;

import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.sql.*;

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

	private static final String JDBC_URL = "jdbc:mysql://localhost:3306/mydatabase";
	private static final String DB_USER = "username";
	private static final String DB_PASSWORD = "password";


	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		doGet(request, response);
		System.out.println("Enter in post section ");
		PrintWriter out = response.getWriter();
		response.setContentType("text/html");

		String firstName = request.getParameter("firstName");
		String lastName = request.getParameter("lastName");
		String email = request.getParameter("email");
		String mobile = request.getParameter("mobile");
		String message = request.getParameter("message");

		Connection conn = null;
		PreparedStatement stmt = null;

		try {
			// Register JDBC driver
			Class.forName("com.mysql.jdbc.Driver");

			// Open a connection
			conn = DriverManager.getConnection(JDBC_URL, DB_USER, DB_PASSWORD);

			// Execute SQL query
			String sql = "INSERT INTO contact_info (first_name, last_name, email, mobile, message) VALUES (?, ?, ?, ?, ?)";
			stmt = conn.prepareStatement(sql);
			stmt.setString(1, firstName);
			stmt.setString(2, lastName);
			stmt.setString(3, email);
			stmt.setString(4, mobile);
			stmt.setString(5, message);
			stmt.executeUpdate();

			out.println("<html><body>");
			out.println("<h2>Record inserted successfully!</h2>");
			out.println("</body></html>");
		} catch (SQLException se) {
			se.printStackTrace();
			out.println("SQLException: " + se.getMessage());
		} catch (Exception e) {
			e.printStackTrace();
			out.println("Exception: " + e.getMessage());
		} finally {
			// Clean-up environment
			try {
				if (stmt != null) stmt.close();
			} catch (SQLException se2) {
				se2.printStackTrace();
			}
			try {
				if (conn != null) conn.close();
			} catch (SQLException se) {
				se.printStackTrace();
			}
			out.close();
		}
	}
}