For the following coding it shows the msg like upload is successfull.But it can not upload into the database(my database is sql server 2008).

Here is the code

import java.io.*;  
import javax.servlet.*;
import javax.servlet.http.*;
import java.sql.*;

public class UploadServlet extends HttpServlet { 
        public void doPost(HttpServletRequest request,HttpServletResponse response) throws ServletException,IOException {
        response.setContentType("text/html");
        PrintWriter out = response.getWriter();

String saveFile="";
String contentType = request.getContentType();
if((contentType != null)&&(contentType.indexOf("multipart/form-data") >= 0)){
DataInputStream in = new DataInputStream(request.getInputStream());
int formDataLength = request.getContentLength();
byte dataBytes[] = new byte[formDataLength];
int byteRead = 0;
int totalBytesRead = 0;
while(totalBytesRead < formDataLength){
byteRead = in.read(dataBytes, totalBytesRead,formDataLength);
totalBytesRead += byteRead;
}
String file = new String(dataBytes);
saveFile = file.substring(file.indexOf("filename=\"") + 10);
saveFile = saveFile.substring(0, saveFile.indexOf("\n"));
saveFile = saveFile.substring(saveFile.lastIndexOf("\\") + 1,saveFile.indexOf("\""));
int lastIndex = contentType.lastIndexOf("=");
String boundary = contentType.substring(lastIndex + 1,contentType.length());
int pos;
pos = file.indexOf("filename=\"");
pos = file.indexOf("\n", pos) + 1;
pos = file.indexOf("\n", pos) + 1;
pos = file.indexOf("\n", pos) + 1;
int boundaryLocation = file.indexOf(boundary, pos) - 4;
int startPos = ((file.substring(0, pos)).getBytes()).length;
int endPos = ((file.substring(0, boundaryLocation)).getBytes()).length;
File ff = new File(saveFile);
FileOutputStream fileOut = new FileOutputStream(ff);
fileOut.write(dataBytes, startPos, (endPos - startPos));
fileOut.flush();
fileOut.close();
out.println("You have successfully upload the file:"+saveFile);
Connection connection = null;
String connectionURL = "jdbc:sqlserver://localhost:1433;databaseName=sree";
ResultSet rs = null;
PreparedStatement psmnt = null;
FileInputStream fis;
try{
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver").newInstance();
connection = DriverManager.getConnection(connectionURL, " ", " ");
File f = new File(saveFile);

String sql="insert into upload(file_data) values(?)";
psmnt = connection.prepareStatement(sql);
fis = new FileInputStream(f);
psmnt.setBinaryStream(1, (InputStream)fis, (int)(f.length()));
int s = psmnt.executeUpdate();
if(s>0){
System.out.println("Uploaded successfully !");
}
    else{
  System.out.println("ERROR!");

}
}
        catch(Exception e){e.printStackTrace();}
}
        }
}