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 ju.ehealthservice.images; import java.io.File; import java.io.IOException; import java.io.PrintWriter; import java.util.List; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import ju.ehealthservice.utils.Constants; 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; import static ju.ehealthservice.system.EHealthTerminal.metadata; /** * * @author Stifler */ public class SaveImage 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.setContentType("text/plain"); response.setCharacterEncoding("UTF-8"); PrintWriter out = response.getWriter(); String ajaxUpdateResult = ""; try { /* TODO output your page here. You may use following sample code. */ ServletFileUpload upload = new ServletFileUpload(new DiskFileItemFactory()); List<FileItem> items = upload.parseRequest(request); String fileName = ""; for (FileItem item : items) { if (item.isFormField()) { fileName = item.getString(); } else { String filePath = Constants.IMAGE_REPOSITORY_PATH + fileName + ".jpg"; File storeFile = new File(filePath); metadata.getData(fileName); metadata.updateImage(true); item.write(storeFile); } } ajaxUpdateResult = "true"; } catch (FileUploadException ex) { ex.printStackTrace(); ajaxUpdateResult = "false"; } catch (Exception ex) { ex.printStackTrace(); ajaxUpdateResult = "false"; } out.print(ajaxUpdateResult); } // <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 { processRequest(request, response); } /** * Returns a short description of the servlet. * * @return a String containing servlet description */ @Override public String getServletInfo() { return "Short description"; }// </editor-fold> }