I can upload images with the following code in Firefox and Chrome but errors in Edge:

Question

Servlet code:

package net;

import SQLBean.DbBean;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import static java.lang.System.out;
import java.nio.file.Files;
import java.nio.file.StandardCopyOption;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.Statement;
import javax.servlet.RequestDispatcher;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.Part;

public class FileUploadServlet extends HttpServlet {

    //private static final String UPLOAD_DIRECTORY = "uploads";
    private static final String UPLOAD_DIRECTORY = "/stohere/uploads/imgdogs";

    String file1 = "";
    String file2 = "";
    @Override


    public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
        //int rowcount;
        //response.getOutputStream().println("count is ");
        try {
            Connection connection = DbBean.getInstance().getConnection();
            String cquery = "";
            cquery = "SELECT count(petid) FROM petimg WHERE petid > ?";
            PreparedStatement cs = connection.prepareStatement(cquery);
            //ResultSet r = s.executeQuery("SELECT COUNT(*) AS rowcount FROM FieldMaster");
            cs.setInt(1, 0);
            //PreparedStatement cs = connection.prepareStatement(cquery);
            ResultSet rc = cs.executeQuery();

            int rowcount;
            rowcount = 0;
            while (rc.next()) {
                rowcount = rc.getInt(1);
            }
            rc.close();
            cs.close();

            for (int i = 0; i < 2; i++) {

                int newcount1 = rowcount + 1;
                String thiscount1 = Integer.toString(newcount1);

                //response.getOutputStream().println("count is " + thiscount1);
                //break;
                //getset.gset cv = new getset.gset();
                String uploadPath = UPLOAD_DIRECTORY;
                if (i == 0) {
                    file1 = "";
                    Part filePart = request.getPart("uploadFile1");
                    InputStream fileInputStream = filePart.getInputStream();

                    if (fileInputStream == null) {
                        break;
                    }
                    if (request.getPart("uploadFile1").getSize() <= 0) {
                        break;
                    }

                    //String uploadPath = getServletContext().getRealPath("")
                           // + File.separator + UPLOAD_DIRECTORY;





                    String filename1 = filePart.getSubmittedFileName();

                    int dot = filename1.lastIndexOf('.');
                    String filebase1 = (dot == -1) ? filename1 : filename1.substring(0, dot);
                    String extension1 = (dot == -1) ? "" : filename1.substring(dot + 1);

                    //String file = filename1.substring(0, filename1.lastIndexOf('.'));
                    //here
                    File fileToSave = new File(uploadPath + "/" + filebase1 + thiscount1 + "." + extension1);
                    //File fileToSave = new File(uploadPath + "/" + filebase1 + thiscount1 + extension1);

                    file1 = filebase1 + thiscount1 + "." + extension1;
                    //response.getOutputStream().println(fileToSave);
                    Files.copy(fileInputStream, fileToSave.toPath(), StandardCopyOption.REPLACE_EXISTING);
                    request.setAttribute("file1", file1);
                }

                if (i == 1) {
                    file2 = "";
                    int newcount2 = rowcount + 2;

                    String thiscount2 = Integer.toString(newcount2);

                    Part filePart = request.getPart("uploadFile2");
                    InputStream fileInputStream = filePart.getInputStream();
                    if (fileInputStream == null) {
                        break;
                    }
                    String fileName2 = filePart.getName();
                    if (request.getPart("uploadFile2").getSize() <= 0) {
                        break;
                    }

                    //String uploadPath = getServletContext().getRealPath("")
                            //+ File.separator + UPLOAD_DIRECTORY;
                    String filename2 = filePart.getSubmittedFileName();

                    int dot = filename2.lastIndexOf('.');
                    String filebase2 = (dot == -1) ? filename2 : filename2.substring(0, dot);
                    String extension2 = (dot == -1) ? "" : filename2.substring(dot + 1);

                    File fileToSave = new File(uploadPath + "/" + filebase2 + thiscount2 + "." + extension2);
                    file2 = filebase2 + thiscount2 + "." + extension2;
                    Files.copy(fileInputStream, fileToSave.toPath(), StandardCopyOption.REPLACE_EXISTING);
                    request.setAttribute("file2", file2);
                }                   //break;  break here.

            }

            String myname = request.getParameter("myname");
            String species = request.getParameter("species");

            request.setAttribute("myname", myname);
            request.setAttribute("species", species);
            request.setAttribute("message",
                    "Upload has been done successfully!");

            String sql = "";
            sql = "insert into petimg (petname, species, pic1, pic2) values(?, ?, ?, ?)";
            PreparedStatement insertcs = connection.prepareStatement(sql);
            insertcs.setString(1, myname);
            insertcs.setString(2, species);
            insertcs.setString(3, file1);
            insertcs.setString(4, file2);
            insertcs.executeUpdate();
            insertcs.close();

        } catch (Exception e) {

            response.getOutputStream().println("Exception is ;" + e);

        }

        RequestDispatcher dispatcher = request.getRequestDispatcher("/message2.jsp");
        if (dispatcher != null) {
            dispatcher.forward(request, response);
        }

        //response.getOutputStream().println("<p>Upload another file <a href=\"http://localhost:8080/index.html\">here</a>.</p>");  
    }
}

Included are two images, first is Firefox: See https://i.stack.imgur.com/rwbyO.jpg

And second is Edge: See https://i.stack.imgur.com/bMvMz.jpg

Firefox is just getting ann.JPG

Edge gets C:\Users\jimwin7a\Pictures\ann.JPG

Here is the exact error:

Exception is ;java.nio.file.InvalidPathException: Illegal char <:> at index 26: \stohere\uploads   \imgdogs\C:Usersjimwin7aPicturesann7.JPG

As you can see Edge is getting: \C:Usersjimwin7aPicturesann7.JPG

So how do I re-work the servlet to work in Edge also?

Answer 1

I hope this helps someone, I got it working.

First I added this:

String fileName = getFileName(filePart).toString();

getFileName is from another S.O. article:

    private String getFileName(Part part) {
        String contentDisp = part.getHeader("content-disposition");
        System.out.println("content-disposition header= "+contentDisp);
        String[] tokens = contentDisp.split(";");
        for (String token : tokens) {
            if (token.trim().startsWith("filename")) {
                return token.substring(token.indexOf("=") + 2, token.length()-1);
            }
        }
        return "";
    }

But to just get file.jpg i.e., ann.jpg I run through another function:

this line

String acfilename = fixSubmittedFileName(fileName);

function is:

    private static String fixSubmittedFileName(String fileName) {

        String nfname = fileName;

        nfname = nfname.replace("\\", "/");
        int dot = nfname.lastIndexOf('/');
        String afname = (dot == -1) ? nfname : nfname.substring(dot + 1);
        return afname;


    }

Test on Chrome, Edge, Firefox, and Ie 11, works.

Thanks for answers and help.