SpringBoot优雅的实现图片返回

@Configuration
public class WebMvcConfig implements WebMvcConfigurer {

    /**
     * 增加图片转换器
     * @param converters
     */
    @Override
    public void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
        converters.add(new BufferedImageHttpMessageConverter());
    }

}

@RestController
@Slf4j
@Api(tags = SwaggerConfig.TAG_IMAGE)
@RequestMapping(SwaggerConfig.TAG_IMAGE)
public class ImageController {

    //通过produces 告知浏览器我要返回的媒体类型
    @GetMapping(value = "/getImage2", produces = {MediaType.IMAGE_JPEG_VALUE, MediaType.IMAGE_GIF_VALUE, MediaType.IMAGE_PNG_VALUE})
    @ApiOperation("获取图片-返回BufferedImage")
    public BufferedImage getImage2() throws IOException {
            return ImageIO.read(new FileInputStream(new File("H:\\Pictures\\6f31c1a2gw6dcdoigmeftj.jpg")));
    }

}

@RestController
@Slf4j
@Api(tags = SwaggerConfig.TAG_IMAGE)
@RequestMapping(SwaggerConfig.TAG_IMAGE)
public class ImageController {

    @Resource
    private HttpServletResponse response;

    @GetMapping(value = "/getImage")
    @ApiOperation("获取图片-以ImageIO流形式写回")
    public void getImage() throws IOException {
        OutputStream os = null;
        try {
//        读取图片
            BufferedImage image = ImageIO.read(new FileInputStream(new File("F:\\谷歌下载\\未命名文件.png")));
            response.setContentType("image/png");
            os = response.getOutputStream();

            if (image != null) {
                ImageIO.write(image, "png", os);
            }
        } catch (IOException e) {
            log.error("获取图片异常{}",e.getMessage());
        } finally {
            if (os != null) {
                os.flush();
                os.close();
            }
        }
    }

}