工具类:
- public FileInputStream fileDownload(String fileLink) throws Exception {
- System.out.println("==============开始下载"+fileLink);
- // 转码中文
- URL url = new URL(encodeURLChinese(fileLink));
- System.out.println("fileLink:======================"+url);
- // 开始下载
- TrustStrategy acceptingTrustStrategy = (chain, authType) -> true;
- SSLContext sslContext = SSLContexts.custom().loadTrustMaterial(null, acceptingTrustStrategy).build();
- SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(sslContext, NoopHostnameVerifier.INSTANCE);
- HttpClientBuilder clientBuilder = HttpClients.custom();
- CloseableHttpClient httpClient = clientBuilder.setSSLSocketFactory(sslsf).build();
- HttpComponentsClientHttpRequestFactory httpRequestFactory = new HttpComponentsClientHttpRequestFactory();
- httpRequestFactory.setConnectTimeout(30000);
- httpRequestFactory.setConnectionRequestTimeout(30000);
- httpRequestFactory.setReadTimeout(30000);
- httpRequestFactory.setHttpClient(httpClient);
- RestTemplate template = new RestTemplate(httpRequestFactory);
- // 避免二次转码
- DefaultUriBuilderFactory uriBuilderFactory = new DefaultUriBuilderFactory();
- uriBuilderFactory.setEncodingMode(DefaultUriBuilderFactory.EncodingMode.NONE);
- template.setUriTemplateHandler(uriBuilderFactory);
- HttpHeaders headers = new HttpHeaders();
- HttpEntity<org.springframework.core.io.Resource> httpEntity = new HttpEntity<org.springframework.core.io.Resource>(headers);
- ResponseEntity<byte[]> response = template.exchange(url.toString(), HttpMethod.GET,
- httpEntity, byte[].class);
- byte[] body = response.getBody();
- // 创建临时文件
- File tempFile = File.createTempFile("temp", ".png");
- // 将 byte[] 写入临时文件
- try (FileOutputStream fos = new FileOutputStream(tempFile)) {
- if (body != null) {
- fos.write(body);
- }
- }
- // 创建 FileInputStream 对象
- FileInputStream stream = new FileInputStream(tempFile);
- System.out.println("=============下载结束");
- // 最后,记得在使用完后删除临时文件
- tempFile.delete();
- return stream;
- }
- public String encodeURLChinese(String url) {
- if (StringUtils.isEmpty(url)) {
- return null;
- }
- url = StringUtils.trim(url);
- try {
- if (!needEncoding(url)) {
- // 不需要编码
- return url;
- } else {
- // 需要编码
- String allowChars = ".!*'();:@&=+_\\-$,/?#\\[\\]{}|\\^~`<>%"";
- // String allowChars = ".!*'();:@&=+_\\-$,/?#\\[\\]{}|\\^~`<>%"";
- // UTF-8 大写
- return encode(url, "UTF-8", allowChars, false);
- }
- } catch (Exception e) {
- throw new RuntimeException(e);
- }
- }
复制代码 测试代码
- @GetMapping("export")
- public WebResult<?> exportTeaAndStu() {
- try {
- String url = "https://6c6f-lowcode-9g7kjvsl444eff34-1304647831.tcb.qcloud.la/weda-uploader/7cafc8106cb7cddf27b11dc5c8673562-imageaaa.png?sign=70c4c8a6372fb8b8c743b996a4d1e7b0&t=1723021617";
- String aa = "http://localhost:1401/weda/myLecture/main/speaker/getPhotoByPhotoName?photoName=45550120240510094227.png";
- String fileName = "777";
- //通过链接返回一个输入流
- FileInputStream stream = fileDownload(url);
- minioUtil.uploadInputStream("mpbucket", "sjs/wdjz/zjrgl" + "/" + fileName + ".png", stream);
- return WebResult.ok();
- } catch (Exception e) {
- return WebResult.error(e.getMessage());
- }
- }
复制代码
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