如何将图片变成小图标

Question

要将接收到的图片按照一定比例缩小成小图标的形式,然后点击这个图标原图就会显示出来,这个要怎么做?我是个渣渣,恳求大神给予指导.如果有代码那就更好了.非常感谢各位的帮助..

Answer 1

 //如果是图片文件，则执行缩放处理
             Path source = Paths.get(newFilePath);
             String contentType = Files.probeContentType(source);
             if (contentType.startsWith("image")){
                    String thumbPath = this.getImgAbsolutePath(request, file.getOriginalFilename(), "thumb");
                    System.out.println(thumbPath);
                    //ImageUtils.getThumbnail(newFilePath, thumbPath, 94, 222);
                    File resizedFile = new File(thumbPath);
                    try{
                        ImageUtils.resize(uploadFile, resizedFile, 222, 1.0F);
                    } catch (Exception e) {
                        FileCopyUtils.copy(file.getBytes(), resizedFile);
                        e.printStackTrace();
                    }
             }