Uploadify code to send parameters to server with Uploaded file

JSP code :

Comment :

Reference :

 
 
Servlet code to get request parameter:
 
 
package com.hp;




import java.io.File;

import java.io.IOException;

import java.io.PrintWriter;

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.FileUploadException;

import org.apache.commons.fileupload.disk.DiskFileItemFactory;

import org.apache.commons.fileupload.servlet.ServletFileUpload;



public class UploadServlet extends HttpServlet {

private static final long serialVersionUID = 1L;



/**

* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)

*

*/

protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

PrintWriter writer = response.getWriter();

writer.write("call POST with multipart form data");

}



/**

* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)

*

*/

@SuppressWarnings("unchecked")

protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

boolean exit = false;

if (!ServletFileUpload.isMultipartContent(request)) {

throw new IllegalArgumentException("Request is not multipart, please 'multipart/form-data' enctype for your form.");

}



ServletFileUpload uploadHandler = new ServletFileUpload(new DiskFileItemFactory());

PrintWriter writer = response.getWriter();

response.setContentType("text/plain");

String comments=request.getParameter("comment");

try {

List items = uploadHandler.parseRequest(request);

for (FileItem item : items) {

if (!item.isFormField()) {

System.out.println("Name: " + item.getName());

System.out.println("Size: " + item.getSize());

System.out.println("Type: " + item.getContentType());

File file = File.createTempFile(item.getName(), "");

item.write(file);

writer.write("{\"name\":\""+ item.getName() + "\",\"type\":\"" + item.getContentType() + "\",\"size\":\"" + item.getSize() + "\"}");

break; // assume we only get one file at a time

}

else{

if(item.getFieldName().equalsIgnoreCase("comment")){

String comment = item.getString();

System.out.println("comment "+comment);

if(comment == null

comment.trim().isEmpty()){

writer.write("{\"error\":\""+"yes"+"\",\"errorType\":\""+"NullComment"+"\"}");

exit = true;

}



}

else if(item.getFieldName().equalsIgnoreCase("reference")){

String ref = item.getString();

System.out.println("reference "+ref);

if(ref == null

ref.trim().isEmpty()){

writer.write("{\"error\":\""+"yes"+"\",\"errorType\":\""+"NullReference"+"\"}");

exit = true;

}

}



if(exit == true){

break;

}



}

}

} catch (FileUploadException e) {

throw new RuntimeException(e);

} catch (Exception e) {

throw new RuntimeException(e);

} finally {

writer.close();

}



}



}