upload image from html form and store in mysql database

I tried to upload image from html form and save in mysql database table using fileupload library but i have error
this hrml form

this is servlet class

import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.Statement;
import java.util.Iterator;
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.FileItemFactory;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;

public class upload_image extends HttpServlet {

public void doPost(HttpServletRequest request, 
HttpServletResponse response)
throws ServletException, IOException{
        response.setContentType("text/html");
  PrintWriter pw = response.getWriter();
  
        // Check that we have a file upload request
        boolean isMultipart = ServletFileUpload.isMultipartContent(request);
 
        if(!isMultipart){
            //no image file found
            //display error message to user or simply display the upload form again
            pw.println("no file found");
 
            return;
        }
 
        try{
   // Create a factory for disk-based file items
        FileItemFactory factory = new DiskFileItemFactory();
 
        // Create a new file upload handler
        ServletFileUpload upload = new ServletFileUpload(factory);
 
        // Parse the request
        List<FileItem> items = upload.parseRequest(request);
 
        // Process the uploaded items
        Iterator<FileItem> iter = items.iterator();
        while (iter.hasNext()) {
            FileItem item = (FileItem) iter.next();
 
            if (!item.isFormField()) {
                //Item is an image, process it
 
              
                //connect to mysql database
   String connectionURL = "jdbc:mysql://localhost:3306/evoting";
  Connection connection;
    Class.forName("org.gjt.mm.mysql.Driver");
  connection = DriverManager.getConnection
  (connectionURL, "root", "");     
//////// insert image into citizen table        
 
 PreparedStatement ps =  connection.prepareStatement("INSERT INTO citizens(c_pic) VALUES(?)");

ps.setBinaryStream(1, item.getInputStream(), (int) item.getSize());

int i = ps.executeUpdate();
  
  if(i!=0){
  response.sendRedirect("page1.html");
  
  }
  else{
  response.sendRedirect("page2.html");
  
  }
        }//////////////// if
        }////////////////// while 
  }/////////////////////// try
  catch (Exception e){
  pw.println(e);
  }///////////////////////////// catch
    } ////////////////// do post
} ///////////////// class

But i have a beautiful error Despite the addition of two fileupload.jar && commons-io.jar

type Exception report

message Servlet execution threw an exception

description The server encountered an internal error that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: Servlet execution threw an exception
root cause

java.lang.NoClassDefFoundError: org/apache/commons/io/output/DeferredFileOutputStream
	org.apache.commons.fileupload.disk.DiskFileItemFactory.createItem(DiskFileItemFactory.java:199)
	org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:361)
	org.apache.commons.fileupload.servlet.ServletFileUpload.parseRequest(ServletFileUpload.java:126)
	upload.upload_image.doPost(upload_image.java:58)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
root cause

java.lang.ClassNotFoundException: org.apache.commons.io.output.DeferredFileOutputStream
	java.net.URLClassLoader$1.run(URLClassLoader.java:366)
	java.net.URLClassLoader$1.run(URLClassLoader.java:355)
	java.security.AccessController.doPrivileged(Native Method)
	java.net.URLClassLoader.findClass(URLClassLoader.java:354)
	java.lang.ClassLoader.loadClass(ClassLoader.java:423)
	java.lang.ClassLoader.loadClass(ClassLoader.java:356)
	org.apache.commons.fileupload.disk.DiskFileItemFactory.createItem(DiskFileItemFactory.java:199)
	org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:361)
	org.apache.commons.fileupload.servlet.ServletFileUpload.parseRequest(ServletFileUpload.java:126)
	upload.upload_image.doPost(upload_image.java:58)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
note The full stack trace of the root cause is available in the Apache Tomcat/7.0.30 logs.

please help me

The FileUpload library needs the Apache Commons IO library. If that doesn't come with the FileUpload distribution you need to download it separately.

Note that the documentation specifically mentions that (http://commons.apache.org/fileupload/using.html); if you haven't read that page, now would be a good time to do so.

thanks Ulf Dittmer

But actually I added the commoms io library and i read your page but how i can resolve this error

Which file did you put where, exactly?

this photo from my netbeans define where i put jar files

please what is wrong

IDEs often separate build classpath and runtime classpath - make sure you include the library in both.