com.ts.control.UploadFile.java Source code

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Here is the source code for com.ts.control.UploadFile.java

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/*
 * 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.
 */
//File upload
//         |
//         v
//http://stackoverflow.com/questions/22985809/upload-read-an-excel-file-in-a-jsp-using-poi
package com.ts.control;

import java.io.*;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Date;
import java.util.Iterator;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileItemFactory;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.apache.commons.io.FilenameUtils;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

/**
 *
 * @author AlejandroA
 */
public class UploadFile extends HttpServlet {
    String saveFile = "C:/lol";

    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        String campo1 = "";
        String campo2 = "";
        String campo3 = "";
        String campo4 = "";
        String campo5 = "";
        String campo6 = "";
        String campo7 = "";
        int c = 1;
        try {
            boolean ismultipart = ServletFileUpload.isMultipartContent(request);
            if (!ismultipart) {
            } else {
                FileItemFactory factory = new DiskFileItemFactory();
                ServletFileUpload upload = new ServletFileUpload(factory);
                List items = null;
                try {
                    items = upload.parseRequest(request);
                } catch (Exception e) {
                }
                Iterator itr = items.iterator();
                while (itr.hasNext()) {
                    FileItem item = (FileItem) itr.next();
                    if (item.isFormField()) {
                    } else {
                        String itemname = item.getName();
                        if ((itemname == null || itemname.equals(""))) {
                            continue;
                        }
                        String filename = FilenameUtils.getName(itemname);
                        System.out.println("ruta---------------" + saveFile + filename);
                        File f = checkExist(filename);
                        item.write(f);
                        ////////
                        List cellDataList = new ArrayList();
                        try {
                            FileInputStream fileInputStream = new FileInputStream(f);
                            XSSFWorkbook workBook = new XSSFWorkbook(fileInputStream);
                            XSSFSheet hssfSheet = workBook.getSheetAt(0);
                            Iterator rowIterator = hssfSheet.rowIterator();
                            while (rowIterator.hasNext()) {
                                XSSFRow hssfRow = (XSSFRow) rowIterator.next();
                                Iterator iterator = hssfRow.cellIterator();
                                List cellTempList = new ArrayList();
                                while (iterator.hasNext()) {
                                    XSSFCell hssfCell = (XSSFCell) iterator.next();
                                    cellTempList.add(hssfCell);
                                }
                                cellDataList.add(cellTempList);
                            }
                        } catch (Exception e) {
                            e.printStackTrace();
                        }
                        out.println("<table border='3' class='table table-bordered table-striped table-hover'>");
                        for (int i = 1; i < cellDataList.size(); i++) {
                            List cellTempList = (List) cellDataList.get(i);
                            out.println("<tr>");
                            for (int j = 0; j < cellTempList.size(); j++) {
                                XSSFCell hssfCell = (XSSFCell) cellTempList.get(j);
                                String dato = hssfCell.toString();
                                out.print("<td>" + dato + "</td>");
                                switch (c) {
                                case 1:
                                    campo1 = dato;
                                    c++;
                                    break;
                                case 2:
                                    campo2 = dato;
                                    c++;
                                    break;
                                case 3:
                                    campo3 = dato;
                                    c++;
                                    break;
                                case 4:
                                    campo4 = dato;
                                    c++;
                                    break;
                                case 5:
                                    campo5 = dato;
                                    c++;
                                    break;
                                case 6:
                                    campo6 = dato;
                                    c++;
                                    break;
                                case 7:
                                    campo7 = dato;
                                    c = 1;
                                    break;
                                }
                            }
                            //model.Consulta.addRegistros(campo1,campo2,campo3,campo4,campo5,campo6,campo7); 
                        }
                        out.println("</table><br>");
                        /////////
                    }
                }
            }
        } catch (Exception e) {
        } finally {
            out.close();
        }
    }

    private File checkExist(String fileName) {
        File f = new File(saveFile + "/" + fileName);

        if (f.exists()) {
            StringBuffer sb = new StringBuffer(fileName);
            sb.insert(sb.lastIndexOf("."), "-" + new Date().getTime());
            f = new File(saveFile + "/" + sb.toString());
        }
        return f;
    }

    // <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>

}