SpringBoot 下载文件
下载文件 SpringBoot 接口输出文件流 & Vue 下载文件流,获取 Header 中的文件名
@SpringBootTest class DownloadTests { Logger logger = LoggerFactory.getLogger(this.getClass()); CountDownLatch countDownLatch; @Test void downloadApi() throws InterruptedException { for (int i = 1; i < 10; i++) { int idx = i; new Thread(() -> logger.info(download("http://www.vipsoft.com.cn/api/download", idx + ".zip"))).start(); } countDownLatch = new CountDownLatch(count); countDownLatch.await(); } public String download(String downloadUrl, String saveName) { String result = ""; // 下载网络文件 int bytesum = 0; int byteread = 0; FileOutputStream fs = null; InputStream inStream = null; try { logger.info("下载地址 => {}", downloadUrl); URL url = new URL(downloadUrl); URLConnection conn = url.openConnection(); inStream = conn.getInputStream(); String savePath = StrUtil.format("{}/{}", "D:\\temp", saveName); fs = new FileOutputStream(savePath); byte[] buffer = new byte[1204]; int length; while ((byteread = inStream.read(buffer)) != -1) { fs.write(buffer, 0, byteread); bytesum += byteread; if (bytesum % (1024 * 1024) < 1000) { System.out.println(Thread.currentThread().getName() + " " + saveName + " 已写入(M) " + (bytesum / 1024 / 1024)); } } fs.flush(); result = StrUtil.format("{}/{}", "D:\\temp", saveName); } catch (FileNotFoundException e) { logger.error(e.getMessage(), e); } catch (IOException e) { logger.error(e.getMessage(), e); } finally { IoUtil.close(inStream); IoUtil.close(fs); countDownLatch.countDown(); } return result; } }
本文来自博客园,作者:VipSoft 转载请注明原文链接:https://www.cnblogs.com/vipsoft/p/16771864.html