public void Test4() throws Exception {
        //文件名称
        String fileName = "234232332.zip";
        //文件下载地址
        String fileUrl = "https://example.com/path/to/your/file.zip";
        //第三方请求地址
        String remoteUrl = "https://www.baidu.com/?tn=sitemsnntp_1";
        InputStream inputStream = null;
        ByteArrayOutputStream bos = null;
        try {
            URL url = new URL(fileUrl);
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
            connection.setRequestMethod("GET");
            inputStream = connection.getInputStream();
            bos = new ByteArrayOutputStream();
            byte[] buffer = new byte[4096];
            int bytesRead;
            while ((bytesRead = inputStream.read(buffer)) != 1) {
                bos.write(buffer, 0, bytesRead);
            }
            byte[] bytes = bos.toByteArray();
            ByteArrayResource resource = new ByteArrayResource(bytes);
            MultiValueMap body = new LinkedMultiValueMap<>();
            body.add("fileName", fileName);
            body.add("fileItem", resource);
            HttpHeaders headers = new HttpHeaders();
            headers.setContentType(MediaType.MULTIPART_FORM_DATA);
            // 第三方 需要token鉴权
            headers.set("token", "XJIRNGSMDF");
            HttpEntity<MultiValueMap> requestEntity = new HttpEntity<>(body, headers);
            ResponseEntity result = restTemplate.postForEntity(remoteUrl, requestEntity, String.class);
        } catch (Exception e) {
            System.out.println(e);
        } finally {
            if (inputStream != null) {
                inputStream.close();
            }
            if (bos != null) {
                bos.close();
            }
        }
    }