图片压缩——大小改变，尺寸不变

    compressPic(String srcFilePath, String descFilePath, quality) IOException {        File file = ;        BufferedImage src = ;        FileOutputStream out = ;        ImageWriter imgWrier;        ImageWriteParam imgWriteParams;        imgWrier = ImageIO.().next();        imgWriteParams = javax.imageio.plugins.jpeg.JPEGImageWriteParam(                );        imgWriteParams.setCompressionMode(ImageWriteParam.);        imgWriteParams.setCompressionQuality(quality);        imgWriteParams.setProgressiveMode(ImageWriteParam.);        ColorModel colorModel = ImageIO.(File(srcFilePath)).getColorModel();imgWriteParams.setDestinationType(javax.imageio.ImageTypeSpecifier(                colorModel, colorModel.createCompatibleSampleModel(, )));        {            ((srcFilePath)) {                ;            } {                file = File(srcFilePath);                System..println(file.length());                src = ImageIO.(file);                out = FileOutputStream(descFilePath);                imgWrier.reset();                imgWrier.setOutput(ImageIO.(out));                imgWrier.write(, IIOImage(src, , ),                        imgWriteParams);                out.flush();            }        } (Exception e) {            e.printStackTrace();            ;        } {            out.close();        }        ;    }