<%@ page import="java.io.File" %>
<%@ page import="java.io.FileInputStream" %>
<%@page contentType="text/html; charset=utf-8"%>
<%

    request.setAttribute("path", "statement");
    request.setAttribute("name", "test.zip");

    String filePath = (String) request.getAttribute("pathd");
    String fileName = (String) request.getAttribute("named");

    request.setCharacterEncoding("UTF-8");
    response.setCharacterEncoding("UTF-8");
    ServletOutputStream out1=response.getOutputStream();
    response.addHeader("Content-Disposition","attachment;filename="+fileName);
    File f = new File(session.getServletContext().getRealPath("/"),filePath+"/"+fileName);
    long len = f.length();
    response.addHeader("Content-Length", String.valueOf(len));
    response.setContentType("application/download");
    FileInputStream fileInputStream = new FileInputStream(f);
    int i;
    while((i=fileInputStream.read())!=-1){
        out1.write(i);
    }
    fileInputStream.close();
    out1.close();
%>

request.setAttribute("pathd", "index.jsp");
                request.setAttribute("named", "WEB-INF");
                request.getRequestDispatcher("/jsp/down.jsp").forward(request, response);