Tess4j和NetBeans Java编程-问题"AWT-Eventqueue-0“不符合要求-链接错误

Question

我已经编写了一个小工具，它可以获取图像并使用tesseract从其中提取数据。我在64位的Windows7机器上使用过Netbeans中的Java。到目前为止，这个程序编译得很好，可以做我想做的事情- -包括tesseract -。但是，当我尝试在Netbeans中清理和构建完成的项目，并尝试在.cmd中运行生成的.jar时

java -jar "..\Users\Marv\Scantool.jar"

我得到以下错误：

Exception in thread "AWT-EventQueue-0" java.lang.UnsatisfiedLinkError: The module can not be found

                at com.sun.jna.Native.open(Native Method)
                at com.sun.jna.Native.open(Native.java:1759)
                at com.sun.jna.NativeLibrary.loadLibrary(NativeLibrary.java:260)
                at com.sun.jna.NativeLibrary.getInstance(NativeLibrary.java:398)
                at com.sun.jna.Library$Handler.<init>(Library.java:147)
                at com.sun.jna.Native.loadLibrary(Native.java:412)
                at com.sun.jna.Native.loadLibrary(Native.java:391)
                at net.sourceforge.tess4j.TessAPI.<clinit>(TessAPI.java:45)
                at net.sourceforge.tess4j.Tesseract.init(Tesseract.java:283)
                at net.sourceforge.tess4j.Tesseract.doOCR(Tesseract.java:219)
                at net.sourceforge.tess4j.Tesseract.doOCR(Tesseract.java:168)
                at net.sourceforge.tess4j.Tesseract.doOCR(Tesseract.java:152)
                at ScanCards.ScanCards.extraction(ScanCards.java:64)
                at ScanCards.ScanCards.scan(ScanCards.java:37)
                at ScanCards.ScanCardsGUI.scanButtonActionPerformed(ScanCardsGUI.java:16
        0)
                at ScanCards.ScanCardsGUI.access$100(ScanCardsGUI.java:22)
                at ScanCards.ScanCardsGUI$2.actionPerformed(ScanCardsGUI.java:73)
                at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:20
        22)
                at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.jav
        a:2348)
                at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel
        .java:402)
                at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259
        )
                at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonL
        istener.java:252)
                at java.awt.Component.processMouseEvent(Component.java:6535)
                at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
                at java.awt.Component.processEvent(Component.java:6300)
                at java.awt.Container.processEvent(Container.java:2236)
                at java.awt.Component.dispatchEventImpl(Component.java:4891)
                at java.awt.Container.dispatchEventImpl(Container.java:2294)
                at java.awt.Component.dispatchEvent(Component.java:4713)
                at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4888
        )
                at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4525)

                at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4466)
                at java.awt.Container.dispatchEventImpl(Container.java:2280)
                at java.awt.Window.dispatchEventImpl(Window.java:2750)
                at java.awt.Component.dispatchEvent(Component.java:4713)
                at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
                at java.awt.EventQueue.access$500(EventQueue.java:97)
                at java.awt.EventQueue$3.run(EventQueue.java:709)
                at java.awt.EventQueue$3.run(EventQueue.java:703)
                at java.security.AccessController.doPrivileged(Native Method)
                at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionP
        rivilege(ProtectionDomain.java:76)
                at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionP
        rivilege(ProtectionDomain.java:86)
                at java.awt.EventQueue$4.run(EventQueue.java:731)
                at java.awt.EventQueue$4.run(EventQueue.java:729)
                at java.security.AccessController.doPrivileged(Native Method)
                at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionP
        rivilege(ProtectionDomain.java:76)
                at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
                at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThre
        ad.java:201)
                at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.
        java:116)
                at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThre
        ad.java:105)
                at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)

                at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
                at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

到目前为止，我可以在我的代码中将问题缩小到下面这一行：

String strResult = instance.doOCR( file);

我已经检查了给OCR的“文件”。它是一个完美的.tif-image文件(因为它可以在Netbeans中正常工作)。另一件事，我认为这可能是问题的.jar找不到测试服务器必要的.dlls。因此，我们将必要的.dlls复制到"dist"-folder中。也没有成功。我已经将tess4j-1.3.0.jar绑定到我的项目库中。

非常奇怪的是，在NetBeans中一切都运行得很好。我想我错过了一个指向图书馆的链接，但我想不出任何链接。

这就是我能想到的能提供给你的了。提前感谢！

Answer 1

好吧，我找到了一种变通办法...

File dummy = new File( ScanCards.class.getProtectionDomain().getCodeSource().getLocation().toURI()).getParentFile().getParentFile();
String dirStr = dummy.getPath();
instance.setDatapath( dirStr);
String result = instance.doOCR( file);

实际上，我仍然无法运行.jar-file，但我可以从控制台运行它。因此，我只是使用一个批处理文件(包括'java -jar PATH\ to \MY\ .jar‘代码)来启动程序，而不是使用可运行的文件。

我想，关键在于"java -jar"，好像直接打开.jar java是不是加载了？