Servlet.Image.java Source code

Introduction

Here is the source code for Servlet.Image.java

Source

/*
 * 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 Servlet;

import Class.Photo;
import Utils.DBUtils;
import Utils.Utils;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.sql.Connection;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.io.IOUtils;

/**
 *
 * @author Thach
 */
@WebServlet(name = "Image", urlPatterns = { "/Image" })
public class Image 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 {
        Connection conn = Utils.getStoredConnection(request.getSession());
        int IDP = Integer.parseInt(request.getParameter("IDP"));
        Photo p = DBUtils.GetInfoPhoto(conn, IDP);
        byte[] image = p.getData();

        if (image == null) {
            try {
                File imageNotFound = new File(
                        "D:\\Downloads\\Documents\\ImageShopping\\Photo\\image-not-found.jpg");
                FileInputStream fis = new FileInputStream(imageNotFound);
                image = IOUtils.toByteArray(fis);
            } catch (Exception ex) {
                System.out.println(ex.toString());
            }
        }
        response.setContentType(getServletContext().getMimeType("ABC"));
        response.setContentLength(image.length);
        response.getOutputStream().write(image);
    }

    // <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>

}