Question

我正在尝试将图像（保存在BufferedImage对象中）复制到剪贴板。我正在使用this answer中的代码。

尝试将图像粘贴到程序中时，根本没有任何反应。 GIMP显示一条消息，说明在剪贴板中没有找到图像数据。

我还尝试了this article的解决方法。实际上，我将构造函数更改为：

        Robot robot = new Robot();
        Dimension screenSize  = Toolkit.getDefaultToolkit().getScreenSize();
        Rectangle screen = new Rectangle( screenSize );
        BufferedImage i = robot.createScreenCapture( screen );

        // ----- start of changes from workaround -----
        // Work around a Sun bug that causes a hang in "sun.awt.image.ImageRepresentation.reconstruct".
        new javax.swing.ImageIcon(i); // Force load.
        BufferedImage newImage = new BufferedImage(i.getWidth(null), i.getHeight(null), BufferedImage.TYPE_INT_ARGB);
        newImage.createGraphics().drawImage(i, 0, 0, null);
        i = newImage;
        // ----- end of changes from workaround -----

        TransferableImage trans = new TransferableImage( i );
        Clipboard c = Toolkit.getDefaultToolkit().getSystemClipboard();
        c.setContents( trans, this );

这不起作用，但它会改变行为：每当我尝试粘贴时，我的程序在控制台中显示以下异常：

javax.imageio.IIOException: Invalid argument to native writeImage
        at com.sun.imageio.plugins.jpeg.JPEGImageWriter.writeImage(Native Method)
        at com.sun.imageio.plugins.jpeg.JPEGImageWriter.writeOnThread(JPEGImageWriter.java:1055)
        at com.sun.imageio.plugins.jpeg.JPEGImageWriter.write(JPEGImageWriter.java:357)
        at javax.imageio.ImageWriter.write(ImageWriter.java:615)
        at sun.awt.datatransfer.DataTransferer.imageToStandardBytesImpl(DataTransferer.java:2107)
        at sun.awt.datatransfer.DataTransferer.imageToStandardBytes(DataTransferer.java:2037)
        at sun.awt.X11.XDataTransferer.imageToPlatformBytes(XDataTransferer.java:165)
        at sun.awt.datatransfer.DataTransferer.translateTransferable(DataTransferer.java:1277)
        at sun.awt.datatransfer.DataTransferer$6.run(DataTransferer.java:2208)
        at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:226)
        at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:647)
        at java.awt.EventQueue.access$000(EventQueue.java:96)
        at java.awt.EventQueue$1.run(EventQueue.java:608)
        at java.awt.EventQueue$1.run(EventQueue.java:606)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:105)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:617)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:275)
        at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:200)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:190)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:185)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:177)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:138)

我正在使用Ubuntu 11.10 x64并尝试粘贴各种程序，其中包括LibreOffice Draw，LibreOffice Writer，GIMP，InkScape。

mw@nb999:~$ java -version
java version "1.6.0_23"
OpenJDK Runtime Environment (IcedTea6 1.11pre) (6b23~pre11-0ubuntu1.11.10.2)
OpenJDK 64-Bit Server VM (build 20.0-b11, mixed mode)

有没有人遇到同样的麻烦？我做错了什么，是Java漏洞，有解决方法吗？

编辑：目前我正在使用非常脏的解决方法。我在stackoverflow上找到了一个小的Python脚本，从Java写入Image到文件并将文件提供给这个脚本，然后将其复制到剪贴板。当然，这是除了平台独立之外的一切。所以我仍然希望用Java解决方案。

你的，Max Weller

Answer 1

您可能正在运行OpenJDK，它不支持编写JPEG图像。您可以尝试切换到Sun / Oracle Java。

Java BufferedImage到剪贴板给出了IIOException

1 个答案: