java response 返回多图片 压缩ZIP包返回流

以流的形式返回多图片zip压缩包

public void download(HttpServletResponse response){
    try {
        String downloadFilename = System.currentTimeMillis()+"_资料.zip";//文件的名称
        downloadFilename = URLEncoder.encode(downloadFilename, "UTF-8");//转换中文否则可能会产生乱码
        response.setContentType("application/octet-stream");// 指明response的返回对象是文件流
        response.setHeader("Content-Disposition", "attachment;filename=" + downloadFilename);// 设置在下载框默认显示的文件名
        ZipOutputStream zos = new ZipOutputStream(response.getOutputStream());
     
            for (int i = 0; i < files.length; i++) {
                zos.putNextEntry(new ZipEntry(i + ".jpg"));
				// 这个是网络地址请求
                URL url = new URL(“www.xxxx.com/xxx/xxx.jpg”]);
                InputStream fis = url.openConnection().getInputStream();
                //这个是本地文件地址  
                FIle file = new FIle("D://XXX/XXX/XXX.jpg");
				InputStream fis  = new FileInputStream(file);

                byte[] buffer = new byte[1024];
                int r = 0;
                while ((r = fis.read(buffer)) != -1) {
                    zos.write(buffer, 0, r);
                }
                fis.close();
            }
        
        zos.flush();
        zos.close();
    } catch (UnsupportedEncodingException e) {
        log.info("下载用户资料图片出异常了",e.getMessage());
    } catch (IOException e) {
        // TODO Auto-generated catch block
        log.info("下载用户资料图片出异常了",e.getMessage());
    }
}