SpringBlade 本地图片上传 生成缩略图

完整版：https://www.cnblogs.com/guxingy/p/13716463.html

核心代码

	/**
	 * 上传文件
	 */
	@PostMapping("/upload")
	@ApiOperationSupport(order = 8)
	@ApiOperation(value = "上传文件", notes = "上传文件")
	public R upload(MultipartFile file) throws IOException {
		BladeFile bf = getFile(file);
		bf.transfer(false);

		// 生成缩略图
		BufferedImage src =ImageUtil.readImage(bf.getUploadPath());
		FileOutputStream output = new FileOutputStream("d://1.png");
		ImageUtil.zoomFixed(src, output, null, 800, 800, true, null);


		org.springblade.core.oss.model.BladeFile bladeFile = new org.springblade.core.oss.model.BladeFile();
		bladeFile.setOriginalName(bf.getOriginalFileName());
		bladeFile.setName(bf.getFileName());
		bladeFile.setLink(SystemConstant.me().getDomain() + bf.getUploadVirtualPath());
		return R.data(bladeFile);
	}