效果动图展示

代码部分

@RestController
@RequestMapping("file")
public class ImageController extends BaseController {private static final long serialVersionUID = 1L;private static BufferedImage intputimage;private static BufferedImage outimage;private static String filename;private static Integer maxrgb;@AutowiredEnvironment environment;@AutowiredSessionStrategy sessionStrategy;@AutowiredImageUtils imageutils;@RequestMapping(value = "/getimagecode", method = RequestMethod.GET)public void getImageCode(HttpServletRequest request,HttpServletResponse response){try {response.setContentType("image/jpeg");ImageCode imagecode = imageutils.getImageCode();sessionStrategy.setAttribute(new ServletWebRequest(request),Constants.session_key,imagecode);ImageIO.write(imagecode.getImage(),"JPEG",response.getOutputStream());} catch (IOException e) {e.printStackTrace();}}@RequestMapping(value = "/pasebackground/{keys:\\d+}/{types:\\d?}/{rgbs}/{checked}", method = RequestMethod.GET)public void pasebackground(@PathVariable("keys") Integer keys, @PathVariable("types") Integer types,@PathVariable("rgbs") String rgbs,@PathVariable("checked") Boolean checked,HttpServletResponse response) {if (intputimage == null)throw new RuntimeException("请上传图片文件");try {response.setContentType("image/png");ImageIO.write((outimage = getImage(null,(outimage!=null && checked?outimage:intputimage),keys,types,rgbs)),"PNG",response.getOutputStream());} catch (IOException e) {e.printStackTrace();}}@RequestMapping(value = "/paseliangdu/{keys:\\d+}/{checked}", method = RequestMethod.GET)public void paseliangdu(@PathVariable("keys") Integer keys, @PathVariable("checked") Boolean checked,HttpServletResponse response) {if (intputimage == null)throw new RuntimeException("请上传图片文件");try {response.setContentType("image/png");ImageIO.write((outimage = liangdu(null,(outimage!=null && checked?outimage:intputimage),keys)),"PNG",response.getOutputStream());} catch (IOException e) {e.printStackTrace();}}@RequestMapping(value = "/download/{filename}", method = RequestMethod.GET)public void testDownload(HttpServletResponse resp, @PathVariable("filename") String name) throws IOException {Boolean isimage = Objects.equals("this",name);String file_name = LocalTime.now().getSecond()+".PNG";if(filename!=null && filename.length()>0)file_name = URLEncoder.encode(isimage?filename:name,"UTF-8");if(isimage){if(outimage!=null && filename!=null){resp.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);resp.setHeader("Content-Disposition","attachment;filename=" + file_name);ImageIO.write(outimage,"PNG",resp.getOutputStream());}else{resp.setContentType(MediaType.APPLICATION_JSON_UTF8_VALUE);resp.getWriter().println(JSONObject.toJSONString(ResultUtil.resultErr("没有上传图片")));}return;}resp.setContentType("application/octet-stream");resp.setHeader("Content-Disposition","attachment;filename=" + file_name);File file = new File(environment.getProperty("file.upload.path"),name);if(!file.exists()){resp.setStatus(404);return;}Files.copy(file.toPath(),resp.getOutputStream());}@RequestMapping(value = "/upload", method = RequestMethod.POST, produces = MediaType.APPLICATION_JSON_UTF8_VALUE)public ResultUtil<?> upload(HttpServletRequest request, HttpServletResponse response) {Map<String, MultipartFile> multipartfiles = ((MultipartHttpServletRequest) request).getFileMap();if (multipartfiles.isEmpty())throw new RuntimeException("文件不能为空");for (Map.Entry<String, MultipartFile> file : multipartfiles.entrySet()) {MultipartFile multipartFile = file.getValue();if (multipartFile.isEmpty())throw new RuntimeException("文件不能为空");filename = multipartFile.getOriginalFilename();try {if (multipartfiles.containsKey("header") && multipartFile.getContentType().matches("image/(jpeg|jpg|png|gif)")) {if (multipartFile.getSize() > 1024 * 1024 * 1)throw new RuntimeException("图片大小不能超过1MB");intputimage = ImageIO.read(multipartFile.getInputStream());return ResultUtil.resultOK("上传成功");}String filepath = environment.getProperty(multipartfiles.containsKey("header")?"upload.header.path":"file.upload.path");Path path = Paths.get(filepath, multipartFile.getOriginalFilename());if (!Files.exists(path.getParent()))Files.createDirectories(path.getParent());Files.write(path,multipartFile.getBytes(),StandardOpenOption.CREATE_NEW);} catch (IOException e) {e.printStackTrace();throw new RuntimeException(e.getMessage());}}return ResultUtil.resultOK();}/*** 调整图片的亮度* @param path* @param image* @param keys* @return*/public static BufferedImage liangdu(String path, BufferedImage image,int random,int... maxrgb) {BufferedImage images = null;try {if (path == null && image == null)throw new RuntimeException("path or image not null");BufferedImage imagess = (image == null ? ImageIO.read(new File(path)) : image);images = imagess.createGraphics().getDeviceConfiguration().createCompatibleImage(imagess.getWidth(),imagess.getHeight(),Transparency.TRANSLUCENT);//int R = ((maxrgb[0] >> 16) & 0xff), G = ((maxrgb[0] >> 8) & 0xff), B = (maxrgb[0] & 0xff);int[] rgbs = new int[imagess.getWidth() * imagess.getHeight()];imagess.getRGB(0, 0, imagess.getWidth(), imagess.getHeight(), rgbs, 0, imagess.getWidth());for (int i = 0; i < rgbs.length; i++) {int r = ((rgbs[i] >> 16) & 0xff), g = ((rgbs[i] >> 8) & 0xff), b = (rgbs[i] & 0xff);//if(maxrgb.length==2)//if (Math.abs(R - r) < maxrgb[1] && Math.abs(G - g) < maxrgb[1] && Math.abs(B - b) < maxrgb[1])continue;int R2 = r+random,G2 = g+random,B2 = b+random;if(R2 > 230 && G2 > 230 && B2 > 230)continue;rgbs[i] = ((255 & 0xff) << 24) | ((clamp(R2) & 0xff) << 16) | ((clamp(G2) & 0xff) << 8) | (clamp(B2) & 0xff);}images.setRGB(0,0,images.getWidth(),images.getHeight(),rgbs,0,images.getWidth());} catch (Exception e) {e.printStackTrace();}return images;}private static int clamp(int r) {return r>255?255:r<0?0:r;}/*** * @param path 图片的路径* @param image 加载到内存的图片* @param type 请求处理图片的类型* @param keys 图片的容差值* @param rgbvalue 图片的RGB数值* @return 返回处理后的图片*/public static BufferedImage getImage(String path, BufferedImage image,int keys, int type,String rgbvalue) {BufferedImage images2 = null;try {Map<Integer, Integer> countmaps = new HashMap<>();if (path == null && image == null)throw new RuntimeException("path or image not null");BufferedImage images = image == null ? ImageIO.read(new File(path)) : image;int[] rgbs = new int[images.getWidth() * images.getHeight()];images.getRGB(0, 0, images.getWidth(), images.getHeight(), rgbs, 0, images.getWidth());for (int rgb : rgbs) {if (!countmaps.containsKey(rgb)) {countmaps.put(rgb, 0);continue;}countmaps.put(rgb, countmaps.get(rgb) + 1);}Integer maxvalue = countmaps.values().stream().reduce(0, (x, y) -> x > y ? x : y);Integer maxrgb = countmaps.keySet().stream().filter(x -> Objects.equals(countmaps.get(x), maxvalue)).findFirst().orElse(null);//System.err.println(maxrgb + " : " + maxvalue);Graphics2D graphics = images.createGraphics();graphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);graphics.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);images2 = graphics.getDeviceConfiguration().createCompatibleImage(images.getWidth(), images.getHeight(),Transparency.TRANSLUCENT);int R = ((maxrgb >> 16) & 0xff), G = ((maxrgb >> 8) & 0xff), B = (maxrgb & 0xff);for (int i = 0; i < images.getWidth(); i++) {for (int j = 0; j < images.getHeight(); j++) {int rgb = images.getRGB(i, j);int r = ((rgb >> 16) & 0xff), g = ((rgb >> 8) & 0xff), b = (rgb & 0xff);if(type==0){if (!(Math.abs(R - r) < keys && Math.abs(G - g) < keys && Math.abs(B - b) < keys))images2.setRGB(i, j, rgb);}else if(type==2){if(rgbvalue==null || rgbvalue.length()<1 || !rgbvalue.matches("(\\d+,\\d+,\\d+)"))throw new RuntimeException("rgbvalue有误");String[] rgb_value = rgbvalue.split(",",3);int R2 = Integer.parseInt(rgb_value[0]),G2 = Integer.parseInt(rgb_value[1]),B2 = Integer.parseInt(rgb_value[2]);if (Math.abs(R - r) < keys && Math.abs(G - g) < keys && Math.abs(B - b) < keys){images2.setRGB(i,j,new Color(R2,G2,B2).getRGB());}else images2.setRGB(i,j,rgb);}// images.setRGB(i,j,((toumin*255/10)<<24) | (rgb &// 0x00ffffff));}}} catch (Exception e) {e.printStackTrace();}return images2;}

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Springboot2.0实现在线图片处理(自动去背景、换背景色等功能)

效果动图展示

代码部分

Springboot2.0实现在线图片处理(自动去背景、换背景色等功能)相关推荐

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