@Override

public OutputStream watermark1(String ossURL, String logoOsskey, HttpServletResponse response) {

lock.lock();

OutputStream os = null;

InputStream imageStream=null;

//水印

String logoPath = ossService.getOssURL(logoOsskey,bucket);

//原圖ossURL

try {

os=response.getOutputStream();

imageStream = getImageStream(ossURL);

Image image2 = ImageIO.read(imageStream);

//獲取原圖信息

int width = image2.getWidth(null);

int height = image2.getHeight(null);

BufferedImage bufferedImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_BGR);

Graphics2D g = bufferedImage.createGraphics();

g.drawImage(image2, 0, 0, width, height, null);

// //設置多個圖片水印

InputStream logo = getImageStream(logoPath);

Image imageLogo = ImageIO.read(logo);

int logoWidth = imageLogo.getWidth(null);

int logoHeight = imageLogo.getHeight(null);

//設置透明度,ALPHA為接口中自定義的值透明度 0.3F

g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP, ALPHA));

//完成圖片旋轉30

g.rotate(Math.toRadians(0), bufferedImage.getWidth() / 2, bufferedImage.getHeight() / 2);

int x = -width / 2;

int y = -height / 2;

while (x < width * 1.5) {

y = -height / 2;

while (y < height * 1.5) {

g.drawImage(imageLogo, x, y, null);

y += logoHeight + 200;

}

x += logoHeight + 300;

}

g.dispose();

Thumbnails.Builder thumbnail = Thumbnails.of(bufferedImage);

thumbnail.size(x,y);

ImageIO.write(thumbnail.asBufferedImage(),"png",os);

//JPEGImageEncoder en = JPEGCodec.createJPEGEncoder(os);

//en.encode(bufferedImage);

} catch (IOException e) {

e.printStackTrace();

} finally {

if (os != null) {

try {

os.flush();

os.close();

} catch (IOException e) {

e.printStackTrace();

}

}

if(imageStream!=null){

try {

imageStream.close();

}catch (IOException e){

e.printStackTrace();

}

}

}

lock.unlock();

return os;

}

總結

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