package com.readfiles;

import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.io.OutputStream;

import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse;

public class ReadPdfFileServlet extends HttpServlet {

private static final long serialVersionUID = 1L;

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

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

private void performTask(HttpServletRequest request, HttpServletResponse response) throws ServletException,
        IOException {

    String pdfFileName = "Java Tips.pdf";
    String contextPath = getServletContext().getRealPath(File.separator);
    File pdfFile = new File(contextPath + pdfFileName);

    response.setContentType("application/pdf");
    response.addHeader("Content-Disposition", "attachment; filename=" + pdfFileName);
    response.setContentLength((int) pdfFile.length());

    FileInputStream fileInputStream = new FileInputStream(pdfFile);
    OutputStream responseOutputStream = response.getOutputStream();
    int bytes;
    while ((bytes = fileInputStream.read()) != -1) {
        responseOutputStream.write(bytes);
    }

}

}![alt text][1]

[1]: http://How send different files to browser at same time ..example(pdf&html) want display in same request using servlet