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 classes; import java.io.IOException; import java.io.PrintWriter; import java.util.ArrayList; import java.util.List; import java.util.logging.Level; import java.util.logging.Logger; import javaclasses.adminclass; //import javax.servlet.annotation.MultipartConfig; import javax.servlet.RequestDispatcher; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; // for file uploading import org.apache.commons.fileupload.FileItem; import org.apache.commons.fileupload.FileUploadException; import org.apache.commons.fileupload.disk.DiskFileItemFactory; import org.apache.commons.fileupload.servlet.ServletFileUpload; /** * * @author Aval */ public class newsserv extends HttpServlet { public static long id = -1; /** * 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, FileUploadException { response.setContentType("text/html;charset=UTF-8"); PrintWriter out = response.getWriter(); // Apache Commons-Fileupload library classes DiskFileItemFactory factory = new DiskFileItemFactory(); ServletFileUpload sfu = new ServletFileUpload(factory); if (!ServletFileUpload.isMultipartContent(request)) { System.out.println("sorry. No file uploaded"); return; } try {// parse request List items = sfu.parseRequest(request); FileItem title = (FileItem) items.get(0); String t = title.getString(); //System.out.println("t=" + t); FileItem news = (FileItem) items.get(1); String n = news.getString(); FileItem date = (FileItem) items.get(2); String d = date.getString(); FileItem time = (FileItem) items.get(3); String ti = time.getString(); FileItem btn = (FileItem) items.get(5); String button = btn.getString(); // get uploaded file FileItem file = (FileItem) items.get(4); if (button.equals("add")) { adminclass x = new adminclass(); if (x.insertnews(t, n, d, ti, file)) { RequestDispatcher regd = request.getRequestDispatcher("news.jsp"); regd.include(request, response); } } else if (button.equals("Select")) {//System.out.println("aval"); adminclass x = new adminclass(); ArrayList al = new ArrayList(); id = Long.parseLong(request.getParameter("txt_id")); al = x.searchnews(id); request.setAttribute("data", al); // out.println("Record Searched"); // id=Long.parseLong(al.get(0).toString()); //System.out.println(id); RequestDispatcher regd = request.getRequestDispatcher("news.jsp"); regd.include(request, response); } else if (button.equals("update")) { adminclass x = new adminclass(); if (x.updatenews(id, t, n, d, ti)) { RequestDispatcher regd = request.getRequestDispatcher("news.jsp"); regd.include(request, response); } } } finally { out.close(); } } // <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 { try { processRequest(request, response); } catch (FileUploadException ex) { Logger.getLogger(newsserv.class.getName()).log(Level.SEVERE, null, ex); } } /** * 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 { try { processRequest(request, response); } catch (FileUploadException ex) { Logger.getLogger(newsserv.class.getName()).log(Level.SEVERE, null, ex); } } /** * Returns a short description of the servlet. * * @return a String containing servlet description */ @Override public String getServletInfo() { return "Short description"; }// </editor-fold> }