import java.io.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.ServletInputStream;

public class FileUploadBean {

  public void doUpload(HttpServletRequest request) throws
    IOException {
    PrintWriter pw = new PrintWriter(
      new BufferedWriter(new FileWriter("Demo.out")));
    ServletInputStream in = request.getInputStream();

    int i = in.read();
    while (i != -1) {
      pw.print((char) i);
      i = in.read();
    }
    pw.close();
  }
}