smartUpload组件批量下载

public class BatchDownloadServlet extends HttpServlet {

    public void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        doPost(request, response);

    }

    public void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {

        response.setContentType("application/x-msdownload");
        response.setHeader("Content-Disposition", "attachment;filename=test.zip");
        String path = getServletContext().getRealPath("/")+"images/";
        String[] filenames = request.getParameterValues("filename");
        String str = "";
        String rt = "\r\t";
        ZipOutputStream zos = new ZipOutputStream(response.getOutputStream());
        for(String filename:filenames){
            str+=filename+rt;
            File file = new File(path+filename);
            zos.putNextEntry(new ZipEntry(filename));
            FileInputStream fis = new FileInputStream(file);
            byte[] b = new byte[1024];
            int n = 0;
            while((n=fis.read(b))!=-1){
                zos.write(b, 0, n);
            }
            zos.flush();
            fis.close();
        }
        zos.setComment("download success:"+rt+str);
        zos.flush();
        zos.close();

    }

}