我有以下代码:
List<PDXObjectImage> list = new ArrayList<PDXObjectImage>(someValues);
CircularByteBuffer cbb = new CircularByteBuffer(CircularByteBuffer.INFINITE_SIZE);
for(int k=0;k<list.size();k++)
{
list.get(k).write2OutputStream(cbb.getOutputStream());
ImageInputStream iis = ImageIO.createImageInputStream(cbb.getInputStream());
Iterator iter = ImageIO.getImageReaders(iis);
if (iter.hasNext()) {
ImageReader reader = (ImageReader) iter.next();
reader.addIIOReadProgressListener(new IIOReadProgressListener(){...});
reader.setInput(iis, true, true);
System.out.println("Still okay");
BufferedImage img = reader.read(0, null);
System.out.println("Not okay");
ImageIcon imageIcon = new ImageIcon(img);
model.addRow(new Object[]{imageIcon});
}
}
程序总是显示“还可以”,但从不显示“不行”。
这IIOReadProgressListener
表明阅读器在阻塞前读取了高达 82.4% 的图像。
在我开始使用之前CircularByteBuffer
,我使用的是一系列的ByteArrayOutputStream
, ByteArrayInputStream
,OutputStream
和InputStream
,但由于OutOfMemoryError : Java Heap Space
.
如果有人知道发生了什么,我将非常感谢一些帮助,
谢谢
编辑:
使用以下代码也会发生同样的事情:
List<PDXObjectImage> list = new ArrayList<PDXObjectImage>(someValues);
for(int k=0;k<list.size();k++)
{
PipedOutputStream convertPipe = new PipedOutputStream();
PipedInputStream dataPipe = new PipedInputStream(convertPipe,1000000);
img.write2OutputStream(convertPipe);
ImageInputStream iis = ImageIO.createImageInputStream(dataPipe);
Iterator iter = ImageIO.getImageReaders(iis);
if (iter.hasNext()) {
ImageReader reader = (ImageReader) iter.next();
reader.addIIOReadProgressListener(new IIOReadProgressListener(){...});
reader.setInput(iis, true, true);
System.out.println("Still okay");
BufferedImage img = reader.read(0, null);
System.out.println("Not okay");
ImageIcon imageIcon = new ImageIcon(img);
model.addRow(new Object[]{imageIcon});
}
}