(Explanation required) retrieve image from computer folder

Question

I have been following http://balusc.blogspot.in/2007/07/fileservlet.html but couldn't get it right with my code as i am not understanding much of it ...

filePath = request.getServletContext().getRealPath("")+File.separator+"images"+File.separator+"photo.jpg";
    System.out.println(filePath);
    // Get requested file by path info.
    String requestedFile = request.getPathInfo();
    System.out.println(requestedFile);
    // Check if file is actually supplied to the request URI.
    if (requestedFile == null) {
        // Do your thing if the file is not supplied to the request URI.
        // Throw an exception, or send 404, or show default/warning page, or just ignore it.
        response.sendError(HttpServletResponse.SC_NOT_FOUND); // 404.
        System.out.println("terminates");
        return;
    }

what i get out of this is the program terminates here as the requestedFile is null all the time... can anyone help me go through the code.... Any Help will be appreciated !!! Thanks in advance !!!

I really don't understand any of it ... is there anyway you could help me understand this !!! — Roshan Shahukhal, Apr 02 '14 at 17:53
well first i uploaded the image into the images folder that's located exactly here "C:\Users\Roshan Shahukhal\Documents\NetBeansProjects\E-Drivers Licensing System\build\web\images\" ... now i want to retrieve that image and display in the view page ! — Roshan Shahukhal, Apr 02 '14 at 18:06

score 3 · Accepted Answer · edited May 23 '17 at 11:57

3

I wrote this code on hackathon so it's not clean. You can see example here, more specifically here.

BalusC explains it better stackoverflow.com/a/8521981/660408

I created 'resources' folder in eclipse project directory and placed images there.

protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        String filename = request.getPathInfo().substring(1);
        File file = new File("D:\\FreeUni-enterprise\\CloudLibrary\\resources", filename);
        ...
}

edited May 23 '17 at 11:57

Community

1
1

answered Apr 02 '14 at 18:09

gkiko

2,283
3
30
50

thank you for sharing your project ! I will go through and see what comes out of it !!! anyway, thanks again ! – Roshan Shahukhal Apr 02 '14 at 18:13

(Explanation required) retrieve image from computer folder

1 Answers1