Writing into a file in clients' machine from a jsp application

Question

is it possible to write some data fetched from database into a .CSV file on the clients machine from an JSP application?
signed applets is one possibility , any other possibilities are there?
thanks
Mohammed Rafeeq([email protected])

Answer 1

* @(#)ExcelServlet.java
import javax.servlet.http.*;
import javax.servlet.*;
import java.io.*;
import java.util.*;
import java.sql.*;
* @author M.Rajendra
public class ExcelServlet extends HttpServlet {
     public void init(ServletConfig config)throws ServletException{
          super.init(config);
     } // end of init method
     public void doGet(HttpServletRequest req, HttpServletResponse res)
                                             throws ServletException,IOException     {
          doPost(req,res);
     } // end of doGet method
     public void doPost(HttpServletRequest req,HttpServletResponse res)
                                             throws ServletException,IOException     {
          HttpSession session = req.getSession(true); // session is already created at loginscreen
          OutputStream oout = res.getOutputStream();
          res.setHeader("Content-disposition","filename=excel.csv");
               //res.setContentType("application/octet-stream");
               FileInputStream fis = new FileInputStream("D:\\JRun3.1\\servers\\default\\default-app\\WEB-INF\\classes\\test.csv");
               //here i am reading a csv file, we can output whatever format and set filename of ours
               byte[] buf = new byte[1024];     //get from statics
               int bytesRead = 0;
               while((bytesRead = fis.read(buf)) != -1){
                    oout.write(buf,0,bytesRead);
               oout.close();
               fis.close();
     }//end of doPost method
     public void destroy()     {
     }// end of destroy
} //end of ExcelServlet class