java 通过url下载附件并压缩zip

public File zipAttachFile(String filePathDir, List<String> urlFileList, String memberId) throws Exception {
        filePathDir = "/home/file";
        File zipFileDir = new File(filePathDir);
        if (!zipFileDir.exists()) {
            zipFileDir.mkdir();
        }
        List<File> fileList = new ArrayList<>();
        for (String fileUrl : urlFileList) {
            int lastIndexOf = fileUrl.lastIndexOf("/");
            String fileName = fileUrl.substring(lastIndexOf + 1);
            File file = new File(filePathDir + fileName);
            URL url = new URL(fileUrl);
            FileUtils.copyURLToFile(url, file);
            fileList.add(file);
        }
        String filePath = filePathDir + transToTrilateralMemberId(olsConfigProperites.getOrderPre(), memberId) + ".zip";
        File zipFile = new File(filePath);
        byte[] buf = new byte[1024];
        try {
            // ZipOutputStream类：完成文件或文件夹的压缩
            ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipFile));
            for (File file : fileList) {
                FileInputStream in = new FileInputStream(file);
                out.putNextEntry(new ZipEntry(file.getName()));
                int len;
                while ((len = in.read(buf)) > 0) {
                    out.write(buf, 0, len);
                }
                out.closeEntry();
                in.close();
            }
            out.close();
        } catch (Exception e) {
            log.error("文件压缩失败" + e);
        }
        return zipFile;
    }