java将图像从文件读/写到BuffereImage的最快方法?
- 在Java/Grails中,将图像从文件读入BuffereImage的最快方法是什么李>
- 在Java/Grails中,将图像从BuffereImage写入文件的最快方法是什么李>
我的变体(阅读):
byte [] imageByteArray = new File(basePath+imageSource).readBytes()
InputStream inStream = new ByteArrayInputStream(imageByteArray)
BufferedImage bufferedImage = ImageIO.read(inStream)
我的变体(写):
BufferedImage bufferedImage = // some image
def fullPath = // image page + file name
byte [] currentImage
try{
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ImageIO.write( bufferedImage, "jpg", baos );
baos.flush();
currentImage = baos.toByteArray();
baos.close();
}catch(IOException e){
System.out.println(e.getMessage());
}
}
def newFile = new FileOutputStream(fullPath)
newFile.write(currentImage)
newFile.close()
共 (0) 个答案