public static String fileUploadL(MultipartFile file, String path){        String extName = file.getOriginalFilename().substring(file.getOriginalFilename().lastIndexOf("."));        String fileName = System.currentTimeMillis()+extName;                String finalPath = BASE_PATH+path;        try {             logger.info("==========储存路径"+finalPath);            //文件夹不存在则创建文件夹            File filepath = new File(finalPath);            if (!filepath.exists()) {                logger.info("==========创建文件夹");                filepath.mkdirs();            }            //文件保存路径              String savePath = filepath+ "/" + fileName;             logger.info("==========全路径"+savePath);            //转存文件              //file.transferTo(new File(savePath));            logger.info("==========访问路径"+ACCESS_PATH+path+fileName);            //multipartFile转File            CommonsMultipartFile cf= (CommonsMultipartFile)file;             DiskFileItem fi = (DiskFileItem)cf.getFileItem();             File f = fi.getStoreLocation();            BufferedImage bi1 = ImageIO.read(f);                // 根据需要是否使用 BufferedImage.TYPE_INT_ARGB 　　　　　　　　　　//设置以最小的边截取                int num =0;                if(bi1.getWidth()>bi1.getHeight()) {                    num = bi1.getHeight();                }else {                    num = bi1.getWidth();                }                BufferedImage image = new BufferedImage(num,num, BufferedImage.TYPE_4BYTE_ABGR);                         Graphics2D g2 = image.createGraphics();                g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);                Ellipse2D.Double shape = new Ellipse2D.Double(0, 0, num, num);                g2.setClip(shape);                // 使用 setRenderingHint 设置抗锯齿                g2.drawImage(bi1, 0, 0, null);                g2.dispose();                ImageIO.write(resize(100, 100, image), "PNG", new File(savePath));                return ACCESS_PATH+path+fileName;        } catch (Exception e) {              e.printStackTrace();          }        return null;    } 　　//设置图片px    public static BufferedImage resize(int targetWidth, int targetHeight,            BufferedImage src) {        double scaleW = (double) targetWidth / (double) src.getWidth() ;        double scaleH = (double) targetHeight / (double) src.getHeight() ;        double scale = scaleW < scaleH ? scaleW : scaleH;        BufferedImage result = new BufferedImage((int) (src.getWidth() * scale),                (int) (src.getHeight() * scale), BufferedImage.TYPE_INT_ARGB);    Graphics2D g2d = result.createGraphics();        g2d.drawImage(src, 0, 0, result.getWidth(), result.getHeight(), null);        g2d.dispose();        return result;    }