NoSuchFieldError：将 Tess4J 与 Eclipse 一起使用时的 RESOURCE_PREFIX

Question

我曾尝试在 Eclipse 中使用 Tess4J，但它导致标题中出现错误。我导入了这些 jar 文件：tess4j、jai_imageio 和 jna。我编写的测试代码是按照他们的示例页面上给出的示例。

                File DMTfile = new File(System.getProperty("user.dir")+"\\DMTcap.bmp");
                BufferedImage DMTcap = ImageIO.read(DMTfile);Tesseract instance = new Tesseract();

                String result = "";
                try {
                    result = instance.doOCR(DMTcap);
                } catch (TesseractException e2) {
                    e2.printStackTrace();
                }
                System.out.println(result);

完整的错误如下：

Exception in thread "AWT-EventQueue-0" java.lang.NoSuchFieldError: RESOURCE_PREFIX
at net.sourceforge.tess4j.util.LoadLibs.<clinit>(Unknown Source)
at net.sourceforge.tess4j.TessAPI.<clinit>(Unknown Source)
at net.sourceforge.tess4j.Tesseract.init(Unknown Source)
at net.sourceforge.tess4j.Tesseract.doOCR(Unknown Source)
at net.sourceforge.tess4j.Tesseract.doOCR(Unknown Source)
at net.sourceforge.tess4j.Tesseract.doOCR(Unknown Source)
at net.sourceforge.tess4j.Tesseract.doOCR(Unknown Source)
at DMT$10.actionPerformed(DMT.java:516)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$500(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)

我该如何解决这个问题？

Answer 1

Platform.RESOURCE_PREFIX 是 JNA 常量。确保使用适当版本的 JNA (4.1.0)。

还可以查看这篇文章中的答案：NoSuchFieldError: RESOURCE_PREFIX with a maven project using tess4j