org.iti.agrimarket.view.FileUploadController.java Source code

Introduction

Here is the source code for org.iti.agrimarket.view.FileUploadController.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 org.iti.agrimarket.view;

/**
 *
 * @author Amr
 */

import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.util.Arrays;
import java.util.Comparator;
import java.util.List;
import java.util.stream.Collectors;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.util.FileCopyUtils;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

@Controller
public class FileUploadController {

    //   @RequestMapping(method = RequestMethod.GET, value = "/getimage1")
    public String provideUploadInfo(Model model) {
        File rootFolder = new File(
                "C:\\Users\\Amr\\Documents\\GP\\Agri_Market\\agrimarket_gp_iti\\AgriMarket_v2.2");
        List<String> fileNames = Arrays.stream(rootFolder.listFiles()).map(f -> f.getName())
                .collect(Collectors.toList());

        model.addAttribute("files",
                Arrays.stream(rootFolder.listFiles()).sorted(Comparator.comparingLong(f -> -1 * f.lastModified()))
                        .map(f -> f.getName()).collect(Collectors.toList()));

        return "uploadForm";
    }

    //   @RequestMapping(method = RequestMethod.POST, value = "/uploadimage1")
    public String handleFileUpload(@RequestParam("name") String name, @RequestParam("file") MultipartFile file,
            RedirectAttributes redirectAttributes) {
        if (name.contains("/")) {
            redirectAttributes.addFlashAttribute("message", "Folder separators not allowed");
            return "redirect:/";
        }
        if (name.contains("/")) {
            redirectAttributes.addFlashAttribute("message", "Relative pathnames not allowed");
            return "redirect:/";
        }

        if (!file.isEmpty()) {
            try {
                BufferedOutputStream stream = new BufferedOutputStream(new FileOutputStream(new File(name)));
                FileCopyUtils.copy(file.getInputStream(), stream);
                stream.close();
                redirectAttributes.addFlashAttribute("message", "You successfully uploaded " + name + "!");
            } catch (Exception e) {
                redirectAttributes.addFlashAttribute("message",
                        "You failed to upload " + name + " => " + e.getMessage());
            }
        } else {
            redirectAttributes.addFlashAttribute("message",
                    "You failed to upload " + name + " because the file was empty");
        }

        return "redirect:/index";
    }

}