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一、定义视频上传请求接口
public AjaxResult videoUploadFile(MultipartFile file){ try { if(null == file || file.isEmpty()){ return AjaxResult.error("文件为空"); } String ossFilePrefix = StringUtils.genUUID(); String fileName = ossFilePrefix +"-"+ file.getOriginalFilename(); String fileurl = AliOssUtils.videoUploadFile(file,fileName); AjaxResult ajax = AjaxResult.success(); ajax.put("fileName", "after_"+fileName); ajax.put("url", fileurl); return ajax; } catch (Exception e) { return AjaxResult.error(e.getMessage()); } }
二、视频暂存至本地文件夹
public static final String uploadVideo(String baseDir, MultipartFile file, String fileName) throws FileSizeLimitExceededException, IOException { File desc = getAbsoluteFile(baseDir, fileName); file.transferTo(desc); String pathFileName = getPathFileName(baseDir, fileName); return pathFileName; }
三、开始压缩视频
public static boolean toCompressFile(String convertFile,String targetFile){ try{ /**将视频压缩为 每秒15帧 平均码率600k 画面的宽与高 为1280*720*/ String cutCmd="ffmpeg -i " + convertFile + " -r 15 -b:v 600k -s 1280x720 "+ targetFile; log.info("cutCmd: " + cutCmd); runCmd(cutCmd); log.info("文件:"+convertFile+" 视屏压缩完成"); }catch(Exception e){ e.printStackTrace(); log.info("压缩文件出现异常:"+e.getMessage()); return false; } return true; }
四、上传至阿里云并获取压缩后的视频路径
private static String getFileUrl(String path) throws IOException { File file = new File(path); FileInputStream fileInputStream = new FileInputStream(file); MultipartFile multipartFile1 = new MockMultipartFile(file.getName(), file.getName(), ContentType.APPLICATION_OCTET_STREAM.toString(), fileInputStream); uploadFile(multipartFile1, file.getName()); String url = getUrl(file.getName()); return url; }
五、核心调用
public static String videoUploadFile(MultipartFile multipartFile, String fileName) throws IOException { //存放路径 String filePath = FileUploadUtils.uploadVideo(getDefaultBaseDir(), multipartFile, fileName); String convertFile = filePath.replace("/profile", getDefaultBaseDir()).replaceAll("//", "/"); //字符串第一个字符最后出现的下标 int lastIndex = convertFile.lastIndexOf("/"); StringBuilder sb = new StringBuilder(convertFile); String convertFile1 = sb.insert(lastIndex + 1, "after_").toString(); boolean flag = toCompressFile(convertFile, convertFile1); if (!flag) { throw new CustomException("文件压缩出现异常"); } //读取压缩后的文件并上传至阿里云 String url = getFileUrl(convertFile1); //删除本地暂存文件 FileUtils.deleteFile(convertFile); log.info("文件:" + convertFile + " 删除成功"); FileUtils.deleteFile(convertFile1); log.info("文件:" + convertFile1 + " 删除成功"); return url; }
六、spring boot的yml配置文件
修改application.yml文件:
spring:
servlet:
mvc:
async:
request-timeout: 2000000
修改application-prd.yml文件:
spring:
servlet:
multipart:
max-file-size: 1024MB
max-request-size: 1024MB