Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package adminservlets_ads; import classes.AdminClass_Links; import classes.AdminClass_Message; import classes.AdminClass_ReviewAds; import classes.AdminClass_SendMail; import com.google.gson.Gson; import com.google.gson.JsonObject; 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; /** * * @author SithuDewmi */ public class Apr_ReviewAdsJson extends HttpServlet { /** * Processes requests for both HTTP <code>GET</code> and <code>POST</code> * methods. * * @param request servlet request * @param response servlet response * @throws ServletException if a servlet-specific error occurs * @throws IOException if an I/O error occurs */ protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.sendError(HttpServletResponse.SC_NOT_FOUND); } // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code."> /** * Handles the HTTP <code>GET</code> method. * * @param request servlet request * @param response servlet response * @throws ServletException if a servlet-specific error occurs * @throws IOException if an I/O error occurs */ @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); } /** * Handles the HTTP <code>POST</code> method. * * @param request servlet request * @param response servlet response * @throws ServletException if a servlet-specific error occurs * @throws IOException if an I/O error occurs */ @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { AdminClass_ReviewAds ar = new AdminClass_ReviewAds(); AdminClass_SendMail as = new AdminClass_SendMail(); AdminClass_Message am = new AdminClass_Message(); String alert = null; AdminClass_Links al = new AdminClass_Links(); String reciever = ar.getUserEmail(request.getParameter("to")); String subject = "Approval of your ad \"" + request.getParameter("subject") + "\""; String view_link = "<a href='" + al.getAdView() + "' target='blank'><p>Click here to view your advertisement</p></a>"; String content = "Your ad \"" + request.getParameter("subject") + "\", successfully posted on Superb.lk.\n" + "\n" + "To view your ad, please click the following link. \n" + "If you have any questions, feel free to reply to the email and we will get back to you.\n"; String inbox_content = "Hello,\n" + "\n" + "Your ad \"" + request.getParameter("subject") + "\", successfully posted on Superb.lk.\n" + "\n" + "Regards,\n" + "The support team at Superb.lk\n" + "\n"; int inbox_result = am.sendMessage(inbox_content, request.getParameter("to")); String action = request.getParameter("action"); String item = request.getParameter("item"); int result; if ("Approve".equals(action) && item != null) { result = ar.approveAd(item); //Approving advertiesment int mail_result = as.mailClass(reciever, subject, content, view_link);//sending mail to the user if (result == 1) { alert = "<button class=\"btn btn-green\">" //returning notification of the success + "<i class=\"glyphicon glyphicon-ok-sign\">" + "</i></button><br><strong>Approved!</strong>" + " Advertiesment number " + request.getParameter("item") + ""; } else { alert = "<button class=\"btn btn-red\">" //returning notification of the the failure + "<i class=\"glyphicon glyphicon-remove-circle\">" + "</i></button><br><strong>Failed!</strong>" + " Advertiesment number " + request.getParameter("item") + " Try again."; } } PrintWriter out = response.getWriter(); Gson gson = new Gson(); JsonObject myObj = new JsonObject(); myObj.addProperty("result", alert); out.write(myObj.toString()); out.close(); } /** * Returns a short description of the servlet. * * @return a String containing servlet description */ @Override public String getServletInfo() { return "Short description"; }// </editor-fold> }