JAVA Http接口获取文件下载流，将下载的文件上传阿里云-Toy模板网

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需要根据，业务数据，将存在第三方平台的数据，下载至本地，或转存阿里云OSS中。文章来源地址https://www.toymoban.com/news/detail-574712.html

@ApiOperation(value = "下载录音", notes = "")
    @GetMapping("/download")
    public CommonResult<?> download(String callId) {
        final List<DpxdataTelCall> list = telCallService.lambdaQuery()
                .isNotNull(DpxdataTelCall::getCallId)
                .isNull(DpxdataTelCall::getCallFile)
                .eq(StringUtils.isNotBlank(callId), DpxdataTelCall::getCallId, callId)
                .list();
        URL url = null;
        HttpURLConnection conn = null;
        InputStream inputStream = null;
        BufferedReader br = null;
        String urlStr = "";
        StringBuffer sb = null;
        List<DpxdataTelCall> updateList = new ArrayList<>();
        for (DpxdataTelCall item : list) {
            try {
                urlStr = "http://m.icsoc.net/v2/wintelapi/record/playrecord?vcc_code=" + "code" + "&call_id=" + item.getCallId();
                url = new URL(urlStr);
                conn = (HttpURLConnection) url.openConnection();
                // 设置超时间为10秒
                conn.setConnectTimeout(10 * 1000);
                //获取输入流
                inputStream = conn.getInputStream();
                sb = new StringBuffer();
                br = new BufferedReader(new InputStreamReader(inputStream));
                String line = null;
                while ((line = br.readLine()) != null) {
                    line = new String(line.getBytes(), "utf-8");
                    sb.append(line);
                }
                if (sb.toString().indexOf("code") == -1) {
                    urlStr = "http://m.icsoc.net/v2/wintelapi/record/playrecord?vcc_code=" + "code" + "&call_id=" + item.getCallId();
                    url = new URL(urlStr);
                    conn = (HttpURLConnection) url.openConnection();
                    // 设置超时间为10秒
                    conn.setConnectTimeout(10 * 1000);
                    //获取输入流
                    inputStream = conn.getInputStream();
                    final String telFile = OssBootUtil.upload(inputStream, "upload/tel/" + item.getCallId() + "_" + System.currentTimeMillis() + ".mp3");
                    item.setCallFile(telFile);
                    updateList.add(item);
                    log.info("下载录音文件 -> {} ,{}", item.getPersonId(), item.getCallId());
                }
            } catch (MalformedURLException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            } finally {
                if (br != null) {
                    try {
                        br.close();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
            }
        }
        if (inputStream != null) {
            try {
                inputStream.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        if (CollectionUtil.isNotEmpty(updateList)) {
            telCallService.updateBatchById(updateList);
        }
        return CommonResult.success("下载录音文件数量" + updateList.size());
    }

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