根据图片URL批量压缩导出到客户端

不多说直接上代码

public void zipfileDownload_workerCard(HttpServletRequest request, HttpServletResponse response) throws FileNotFoundException, IOException{
    //响应头的设置
    response.reset();
    response.setCharacterEncoding("utf-8");
    response.setContentType("multipart/form-data");
    //解决不同浏览器压缩包名字含有中文时乱码的问题
    HttpSession session = request.getSession();
    //获取当前系统时间
    Date date = new Date();
    SimpleDateFormat dateFormat= new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
    String billname ="图片下载-"+dateFormat.format(date);
    //设置压缩包的名字
    String downloadName = billname+".zip";
    //返回客户端浏览器的版本号、类型
    String agent = request.getHeader("USER-AGENT");
    try {
        //针对IE或者以IE为内核的浏览器：
        if (agent.contains("MSIE")||agent.contains("Trident")) {
            downloadName = java.net.URLEncoder.encode(downloadName, "UTF-8");
        } else {
            //非IE浏览器的处理：
            downloadName = new String(downloadName.getBytes("UTF-8"),"ISO-8859-1");
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    response.setHeader("Content-Disposition", "attachment;fileName=\"" + downloadName + "\"");

    //设置压缩流：直接写入response，实现边压缩边下载
    ZipOutputStream zipos = null;
    try {
        zipos = new ZipOutputStream(new BufferedOutputStream(response.getOutputStream()));
        zipos.setMethod(ZipOutputStream.DEFLATED); //设置压缩方法
    } catch (Exception e) {
        e.printStackTrace();
    }

    //循环将文件写入压缩流
    DataOutputStream os = null;
    String imgUrl="";//URL地址
    //PicPathD图片路径集合
    for (picShowDO p : PicPathD) {
        String filename =p.name;
        String removeStr = "/upload/workerCard";
        filename = filename.replace(removeStr, "");//去掉相对路径中的两个目录路径
        imgUrl= PublicUtils.ChineseToUrls(p.imgpath);//含中文url转义
        URL url = new URL(imgUrl);
            try {
                //添加ZipEntry，并ZipEntry中写入文件流
                //这里，加上i是防止要下载的文件有重名的导致下载失败
                zipos.putNextEntry(new ZipEntry(filename));
                os = new DataOutputStream(zipos);
                InputStream is = url.openStream();
                byte[] b = new byte[100];
                int length = 0;
                while((length = is.read(b))!= -1){
                    os.write(b, 0, length);
                }
                is.close();
                zipos.closeEntry();
             } catch (IOException e) {
                e.printStackTrace();
            }

    }
    //关闭流
    try {
        os.flush();
        os.close();
        zipos.close();
    } catch (IOException e) {
        e.printStackTrace();
    }

}