执行在jar中打包的wmv文件

时间:2014-07-31 07:23:53

标签: java netbeans getresource

我想执行PicturePackage中的wmv视频文件。 我正在使用以下代码:

try {
        File f;
        f = new File(getClass().getResource("/PicturePackage/admin_input.wmv").toURI());
        Desktop.getDesktop().open(f);
    } catch (URISyntaxException | IOException ex) {
        Logger.getLogger(Help.class.getName()).log(Level.SEVERE, null, ex);
    }

当我在netbeans中运行时,此代码运行并播放视频。但是当我通过netbeans构建的jar文件执行它时,它不会运行视频文件。 我没有处理的任何具体问题???

编辑:

我试过这个

File tempFile = null;
try (InputStream in =
    getClass().getResourceAsStream("/PicturePackage/admin_input.wmv")) {
Path temp = Files.createTempFile("temp", ".wmv");
Files.copy(in, temp);
tempFile = temp.toFile();
// This will try to delete the file when you close your java app
tempFile.deleteOnExit(); 
} catch (Exception e) {
// Handle the exceptions properly
}

// Here you can use tempFile to open it
if (tempFile != null) {
try {
    Desktop.getDesktop().open(tempFile);
} catch (IOException e) {
    // Handle exception
}
}

这是我得到的堆栈跟踪

java.nio.file.FileAlreadyExistsException:C:\ Users \ Ashu \ AppData \ Local \ Temp \ temp1136027223125637051.wmv     at sun.nio.fs.WindowsException.translateToIOException(WindowsException.java:81)     at sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:97)     at sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:102)     at sun.nio.fs.WindowsFileSystemProvider.newByteChannel(WindowsFileSystemProvider.java:230)     在java.nio.file.spi.FileSystemProvider.newOutputStream(FileSystemProvider.java:430)     at java.nio.file.Files.newOutputStream(Files.java:170)     在java.nio.file.Files.copy(Files.java:2841)     在gatetestadmin.Help.jButton1ActionPerformed(Help.java:148)     在gatetestadmin.Help.access $ 000(Help.java:23)     在gatetestadmin.Help $ 1.actionPerformed(Help.java:63)     在javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)     在javax.swing.AbstractButton $ Handler.actionPerformed(AbstractButton.java:2341)     在javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)     在javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)     在javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)     在java.awt.Component.processMouseEvent(Component.java:6505)     在javax.swing.JComponent.processMouseEvent(JComponent.java:3320)     at java.awt.Component.processEvent(Component.java:6270)     at java.awt.Container.processEvent(Container.java:2229)     at java.awt.Component.dispatchEventImpl(Component.java:4861)     at java.awt.Container.dispatchEventImpl(Container.java:2287)     at java.awt.Component.dispatchEvent(Component.java:4687)     at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832)     at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4492)     at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422)     at java.awt.Container.dispatchEventImpl(Container.java:2273)     at java.awt.Window.dispatchEventImpl(Window.java:2719)     at java.awt.Component.dispatchEvent(Component.java:4687)     at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:735)     at java.awt.EventQueue.access $ 200(EventQueue.java:103)     at java.awt.EventQueue $ 3.run(EventQueue.java:694)     at java.awt.EventQueue $ 3.run(EventQueue.java:692)     at java.security.AccessController.doPrivileged(Native Method)     at java.security.ProtectionDomain $ 1.doIntersectionPrivilege(ProtectionDomain.java:76)     at java.security.ProtectionDomain $ 1.doIntersectionPrivilege(ProtectionDomain.java:87)     at java.awt.EventQueue $ 4.run(EventQueue.java:708)     at java.awt.EventQueue $ 4.run(EventQueue.java:706)     at java.security.AccessController.doPrivileged(Native Method)     at java.security.ProtectionDomain $ 1.doIntersectionPrivilege(ProtectionDomain.java:76)     at java.awt.EventQueue.dispatchEvent(EventQueue.java:705)     at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)     at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)     at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)     at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)

1 个答案:

答案 0 :(得分:0)

从Netbeans运行时,您的wmv文件作为独立的独立文件存在。这可以由外部视频播放器播放。

当您将应用程序打包到jar中并将其作为jar运行时,wmv将打包到jar中,您创建的f文件将引用该jar条目。此jar条目将无法提供/解释给外部视频播放器。

你必须解压缩wmv,将其保存为临时文件并打开它。或者不要将视频文件包含在jar中,将其放在jar旁边。

以下是如何将视频提取到临时文件:

File tempFile = null;
try (InputStream in =
        getClass().getResourceAsStream("/PicturePackage/admin_input.wmv")) {
    Path temp = Files.createTempFile("temp", ".wmv");
    Files.copy(in, temp, StandardCopyOption.REPLACE_EXISTING);
    tempFile = temp.toFile();
    // This will try to delete the file when you close your java app
    tempFile.deleteOnExit(); 
} catch (Exception e) {
    // Handle the exceptions properly
}

// Here you can use tempFile to open it
if (tempFile != null) {
    try {
        Desktop.getDesktop().open(tempFile);
    } catch (IOException e) {
        // Handle exception
    }
}