java hutool 导出压缩包

创建文件夹 下载远程oss图片到本地

打压缩包

java hutool 导出压缩包

 public void compressedPackage(
            @RequestParam(name = "num", required = true) Integer num,
            HttpServletRequest req,
            HttpServletResponse response
    ) throws IOException {
        long startTime = System.currentTimeMillis();

        log.info("==========导出开始===========");
       
数据查询
     

        log.info("==========导出查询耗时"+ (System.currentTimeMillis() - startTime)+"===========");

        //创建目录
        String format = DateUtil.format(new Date(), "yyyyMMddHHmmss");
        String mulu = "c:/compressed/img/" + format;
        String muluZip = "c:/compressed/zip/" + format;
        FileUtil.mkdir(mulu);
        FileUtil.mkdir(muluZip);

        CxkjUtil cxkjUtil=new CxkjUtil();
        for (CxWifiCode cxWifiCode : cxWifiCodes) {
            if (oConvertUtils.isNotEmpty(cxWifiCode.getImg())) {

                String url1 = CxkjUtil.concatUrlPrefixString(cxWifiCode.getImg());

                //底图
                String baImg = cxWifiBackground.getImg();
                //计算文字位置
                int a = -5;
                int length = String.valueOf(cxWifiCode.getCode()).length();
                int floor = (int) Math.floor(length / 2);
                // 文件名
                String suffix1 = url1.substring(url1.lastIndexOf("."));
                String mu=mulu + "/" + cxWifiCode.getCode() + suffix1;

                //拼接保存
                String bais = cxkjUtil.getQrCodeUrl(baImg,
                        url1, 0, 220,
                        String.valueOf(cxWifiCode.getCode()), 3, floor * a, 630,mu);

                //取编号
//                long file = HttpUtil.downloadFile(bais, mulu + "/" + cxWifiCode.getCode() + suffix1);

            }
        }
        log.info("==========导出下载合并耗时"+ (System.currentTimeMillis() - startTime)+"===========");

        String zip = muluZip + "/" + format + ".zip";
        ZipUtil.zip(mulu, zip);

        log.info("==========导出压缩耗时"+ (System.currentTimeMillis() - startTime)+"===========");

        OutputStream out = null;
        InputStream fis = null;
        // 创建zip文件输出流
//        FileOutputStream fos = new FileOutputStream(zipFileStr);
        // 将打包后的文件写到客户端，输出的方法同上，使用缓冲流输出
        fis = new BufferedInputStream(new FileInputStream(zip));
        // response.reset(); // 必要地清除response中的缓存信息
        response.setContentType("application/octet-stream");
//        response.setContentType("text/html; charset=utf-8"); // 设置编码字符
        String ymd = new SimpleDateFormat("yyyyMMddHHmmss").format(new Date());
//        response.setHeader("Content-disposition", "attachment;filename=" + new String("二维码".getBytes("GB2312"), "ISO8859-1")
//                + "" + ymd + ".zip");// 设置下载的文件名称
        out = response.getOutputStream();
        byte[] buff = new byte[4096];
        int size = 0;
        while ((size = fis.read(buff)) != -1) {
            out.write(buff, 0, size);
        }
        out.flush();
        out.close();

    }