I am doing an OCR system where user can upload an image of any format. then the uploaded image is displayed inside the imageView.jsp page. imageView.jsp
<div id = "imageView" class="col-lg-8 center-block modal-content">
<form action="ImagePreprocess" method="post" class=" form" role="form" enctype="multipart/form-data">
<input type="submit" class= "btn btn-image pull-left" value="OCR">
</form>
<a href="home.jsp" class="btn btn-default bg-light-gray">Upload a new Image</a>
</div>
</div>
<%
String fname = (String) request.getAttribute("name");
session.setAttribute("filename ", fname);
fname = fname + ".jpg";
String fnames = (String) request.getAttribute("images");
request.getSession().setAttribute("bimla", fnames);
System.out.println("fnames:"+fnames);
System.out.print("uploaded image bbbbbbb"+fname);
String path = "";
if (request.getAttribute("name") != null) {
path = request.getAttribute("name").toString();
}
// String filepath = application.getRealPath("/uploadedImage/");
// System.out.println(filepath);
%>
<div class="row">
<div id = "display" class="col-lg-8 center-block modal-content">
<img src='uploadedImage/<%=fname %>'width="600" height="400"/>
<input type="hidden" name="image" value="<%=fname %>" />
</div>
imagePreprocess.jsp
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
//System.out.println("bimla1");
PrintWriter out = response.getWriter();
HttpSession fileNameSession = request.getSession();
// String imageName = (String) fileNameSession.getAttribute("filename");
// String imageName = (String)request.getAttribute("filename");
// String imageName = (String) request.getSession().setAttribute("filename");
// System.out.println("i am bimlaaaaa"+imageName);
//System.out.println("bimla2");
String imageName = request.getParameter("image").toString();
// String imageName =(String) fileNameSession.getAttribute("bimla");
//System.out.println("bimla3");
grayscaleClass grayImage = new grayscaleClass();
//System.out.println("bimla4");
imageUpload img = new imageUpload();
// String extn = img.getExtensn(imageName);
//System.out.println("bimla5");
File fileNme = new File(imageName);
File outputGrayImage = grayImage.imagePreprocessing(imageName+"."+"jpg", "jpg");
out.println(outputGrayImage);
String grayImageName = outputGrayImage.getName();
}
value of the variable is printed correctly inside jsp page. but when I try to acceess the variable value through servlet page it gives a null value. I have used hidden field in jsp page even. but it also gives the null value. I used sessions even. It also gives the null value. Do you have any idea?
