@Override public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException { // create the workbook, its worksheet, and its title row Workbook workbook = new HSSFWorkbook(); Sheet sheet = workbook.createSheet("User table"); Row row = sheet.createRow(0); row.createCell(0).setCellValue("The User table"); // create the header row row = sheet.createRow(2); row.createCell(0).setCellValue("UserID"); row.createCell(1).setCellValue("LastName"); row.createCell(2).setCellValue("FirstName"); row.createCell(3).setCellValue("Email"); try { // read database rows ConnectionPool pool = ConnectionPool.getInstance(); Connection connection = pool.getConnection(); Statement statement = connection.createStatement(); String query = "SELECT * FROM User ORDER BY UserID"; ResultSet results = statement.executeQuery(query); // create spreadsheet rows int i = 3; while (results.next()) { row = sheet.createRow(i); row.createCell(0).setCellValue(results.getInt("UserID")); row.createCell(1).setCellValue(results.getString("LastName")); row.createCell(2).setCellValue(results.getString("FirstName")); row.createCell(3).setCellValue(results.getString("Email")); i++; } results.close(); statement.close(); connection.close(); } catch (SQLException e) { this.log(e.toString()); } // set response object headers response.setHeader("content-disposition", "attachment; filename=users.xls"); response.setHeader("cache-control", "no-cache"); // get the output stream String encodingString = request.getHeader("accept-encoding"); OutputStream out; if (encodingString != null && encodingString.contains("gzip")) { out = new GZIPOutputStream(response.getOutputStream()); response.setHeader("content-encoding", "gzip"); // System.out.println("User table encoded with gzip"); } else { out = response.getOutputStream(); // System.out.println("User table not encoded with gzip"); } // send the workbook to the browser workbook.write(out); out.close(); }
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String userAgent = request.getHeader("user-agent"); if (userAgent.matches(".*Android.*")) { int flag = 0; try { Connection con = DBConnectionAdmin.getConnection(); Statement stmt = con.createStatement(); ResultSet rs = stmt.executeQuery("SELECT email,password FROM admin"); String emailmember = request.getParameter("mail"); String passwordmember = request.getParameter("pass"); while (rs.next()) { String email = rs.getString("email"); String password = rs.getString("password"); if (email.equals(emailmember) && password.equals(passwordmember)) { flag = 1; // success in login break; } } /*if(request.getParameter("remember")!=null ){ if( request.getParameter("remember").equals("yes") ){ Cookie c1 = new Cookie("email", emailmember); c1.setMaxAge(60*60*24*365); response.addCookie(c1); Cookie c2 = new Cookie("password", passwordmember); c2.setMaxAge(60*60*24*365); response.addCookie(c2); } } else{ Cookie[] cookies = request.getCookies(); if (cookies != null) { for(Cookie cookie: cookies) { if(cookie.getName().equals("email")){ cookie.setMaxAge(0); response.addCookie(cookie); } else if(cookie.getName().equals("password")){ cookie.setMaxAge(0); response.addCookie(cookie); } } } }*/ } catch (SQLException | ClassNotFoundException e1) { e1.printStackTrace(); } if (flag == 1) { response.setContentType("text/html"); PrintWriter out = response.getWriter(); String docType = "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 " + "Transitional//EN\">\n"; String title = "You Signed In Successfully"; out.println( docType + "<HTML>\n" + "<HEAD>" + "<script type='text/javascript'>" + "function changeweb() {" + " AndroidFunction.Second();" + "}" + "</script>" + "<TITLE>" + title + "</TITLE></HEAD>\n" + "<BODY BGCOLOR=\"#FDF5E6\" ><H1 ALIGN=CENTER>" + title + "</H1>\n" + "<button type='button' onclick=\"changeweb()\">Click Me!</button>" + "</BODY></HTML>"); HttpSession session = request.getSession(true); String email = request.getParameter("mail"); session.setAttribute("email", email); } else { response.setContentType("text/html"); PrintWriter out = response.getWriter(); String docType = "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 " + "Transitional//EN\">\n"; String title = "Wrong password or E-mail.Please try again."; out.println( docType + "<HTML>\n" + "<HEAD><TITLE>" + title + "</TITLE></HEAD>\n" + "<BODY BGCOLOR=\"#FDF5E6\" ><H1 ALIGN=CENTER>" + title + "</H1>\n</BODY></HTML>"); } } else { response.setContentType("text/html"); PrintWriter out = response.getWriter(); String docType = "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 " + "Transitional//EN\">\n"; String title = "Main"; out.println( docType + "<HTML>\n" + "<HEAD><TITLE>" + title + "</TITLE>" + "<style>" + "ul" + "{" + "list-style-type:none;" + "margin:0;" + "padding:0;" + "overflow:hidden;" + "}" + "li" + "{" + "float:left;" + "}" + "a:link,a:visited" + "{" + "display:block;" + "font-weight:bold;" + "font-size:200%;" + "color:#FFFFFF;" + "background-color:#98bf21;" + "text-align:center;" + "padding:4px;" + "text-decoration:none;" + "text-transform:uppercase;" + "border: 1px solid black;" + "padding:25px" + "}" + "a:hover,a:active" + "{" + "background-color:#7A991A;" + "}" + "</style>" + "</HEAD>\n" + "<body style='background-color:black' >\n"); out.println("<ul>"); out.println("<li><a href='http://localhost:8083/TestProject/main.html'>New Event!!</a></li>"); out.println("<li><a href='post.Eventlist'>Events</a></li>"); out.println("<li><a href='post.Myeventlist'>My Events</a></li>"); out.println("<li><a href='post.Memberslist'>Members</a></li>"); out.println("<li><a href='post.Profile'>Profile</a></li>"); out.println("<li><a href='post.Help'>Help</a></li>"); out.println("</ul>"); out.println("</BODY></HTML>"); } }