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final OSS oss;    final AliOssProperties ossProperties;    @RequestMapping("/file")    public R uploadFile(@RequestPart MultipartFile file) throws IOException {
           String newFileName = AliyunOssUtil.getNewFileName(ExtUtil.fileExtName(file.getOriginalFilename()));        PutObjectResult resp = oss.putObject(ossProperties.getBucketName(),                    newFileName                ,                file.getInputStream()        );        System.out.println(resp);        return R.res()                .put("url", ossProperties.getHost()+'/'+newFileName);    }

package com.github.lyr.common.util;import cn.hutool.core.date.DateTime;/** * @author 大雨两点 * @version 1.0 * @date 2021/1/17 21:45 */public   class AliyunOssUtil {
       // private static final Logger logger = LoggerFactory.getLogger(com.javatribe.apishare.utils.AliyunOssUtil.class);    /**     * 博客上传的图片放在article这个文件夹中     */    private static final String BASE_FOLDER = "javaweb_upload/";    /**     * 单张图片大小上限为5M     */    private static final long MAX_SIZE = 5 * 1000 * 1000;    /**     * 允许的文件类型     */    private static final String[] FILE_TYPES = {
   /*"GIF", "JPG", "JPEG", "PNG","bmp",*/"jpg","png","tif","gif","pcx"            ,"tga","exif","fpx","svg","psd","cdr","pcd","dxf","ufo","eps","ai","raw","WMF","webp","avif"};    /**     * 将原先的文件名替换为时间序列     * @param fileType     * @return     */    public static String getNewFileName(String fileType){
           DateTime dateTime = new DateTime();        StringBuilder stringBuilder = new StringBuilder();        stringBuilder.append(BASE_FOLDER);        stringBuilder.append(dateTime.toString("yyyyMMddHHmmss"));        stringBuilder.append(getMillTime(dateTime));        stringBuilder.append(".");        stringBuilder.append(fileType);        return stringBuilder.toString();    }    /**     * 获取格式化之后剩下的毫秒值     * @param dateTime     * @return     */    public static long getMillTime(DateTime dateTime){
           long time = dateTime.getTime() % 10000;        return time;    }    // /**    //  * 上传图片, 根据各种情况返回对应的枚举项    //  * @param oss 对象存储客户端对象    //  * @param multipartFile 上传的文件    //  * @param bucketName oss桶名    //  */    // public static UploadStatus uploadImage(OSS oss, MultipartFile multipartFile, String bucketName) {
       //     if (multipartFile == null || multipartFile.getSize() == 0) {
       //         return UploadStatus.FILE_ISNULL;    //     }    //     if (isOverflow(multipartFile.getSize())) {
       //         return UploadStatus.FILE_SIZE_OVERFLOW;    //     }    //     String fileName = multipartFile.getOriginalFilename();    //     if (fileName == null || "".equals(fileName.trim())) {
       //         return UploadStatus.FILE_TYPE_NOTMATCH;    //     }    //     String[] temp = fileName.split("\\.");    //     String fileType = temp[temp.length - 1];    //     if(!isMatchType(fileType)) {
       //         return UploadStatus.FILE_TYPE_NOTMATCH;    //     }    //     String newFileName = getNewFileName(fileType);    //     try {
       //         oss.putObject(bucketName, newFileName, new ByteArrayInputStream(multipartFile.getBytes()));    //     } catch (IOException e) {
       //         logger.info(e.getLocalizedMessage());    //         return UploadStatus.FILEUPLOAD_FAIL;    //     }    //     UploadStatus uploadStatus = UploadStatus.FILEUPLOAD_SUCCESS;    //     uploadStatus.setMessage("/" + newFileName);    //     return uploadStatus;    // };    /**     * 判断文件大小知否超过上限     * @param fileSize 文件大小     * @return     */    public static boolean isOverflow(long fileSize) {
           return fileSize > MAX_SIZE ? true : false;    }    /**     * 判断上传的文件类型是否满足条件     * @param fileType     * @return     */    public static boolean isImg(String fileType) {
           fileType = fileType.toUpperCase();        for (String type : FILE_TYPES) {
               if (type.equalsIgnoreCase(fileType)) {
                   return true;            }        }        return false;    }}

package com.github.lyr.common.util;import cn.hutool.core.util.StrUtil;/** * @Author lyr * @create 2021/2/15 22:24 */public class ExtUtil {
       /**     * 获取文件后缀名字     * @param name     * @return     */    public static String fileExtName(String name) {
           if (StrUtil.isBlank(name)) {
               throw new RuntimeException("it is blank str");        }        return name.substring(name.lastIndexOf(".") + 1);    }}

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