这样写更好一些

UserProfile profile = get();
			try (InputStream ins = tf.getInputStream()) {
				BufferedImage image = Images.read(ins);
				image = Images.zoomScale(image, 128, 128, Color.WHITE);
				ByteArrayOutputStream out = new ByteArrayOutputStream();
				Images.writeJpeg(image, out, 0.8f);
				profile.setAvatar(out.toByteArray());
				dao.update(profile, "^avatar$");
			} catch(DaoException e) {
				log.info("System Error", e);
				msg = "系统错误";
			} catch (Throwable e) {
				msg = "图片格式错误";
			}