如何修复使用 jfoenix 触发的错误？

Question

我将 JFoenix 添加到 eclipse 和 SceneBuilder。 它在 SceneBuilder 中工作，但在编译项目时会导致 ClassNotFoundException

javafx.fxml.LoadException: /C:/Users/Dell/eclipse-workspace/WDP-solver/bin/application/Sample.fxml
at javafx.fxml/javafx.fxml.FXMLLoader.constructLoadException(Unknown Source)
at javafx.fxml/javafx.fxml.FXMLLoader.importClass(Unknown Source)
at javafx.fxml/javafx.fxml.FXMLLoader.processImport(Unknown Source)
at javafx.fxml/javafx.fxml.FXMLLoader.processProcessingInstruction(Unknown Source)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
at javafx.fxml/javafx.fxml.FXMLLoader.load(Unknown Source)
at application.Main.start(Main.java:13)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$9(Unknown Source)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runAndWait$11(Unknown Source)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$9(Unknown Source)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(Unknown Source)
at javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(Unknown Source)
at javafx.graphics/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at javafx.graphics/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(Unknown Source)
at java.base/java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: com.jfoenix.controls.JFXButton
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(Unknown Source)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(Unknown Source)
at java.base/java.lang.ClassLoader.loadClass(Unknown Source)
at javafx.fxml/javafx.fxml.FXMLLoader.loadTypeForPackage(Unknown Source)
at javafx.fxml/javafx.fxml.FXMLLoader.loadType(Unknown Source)
... 21 more

Answer 1

scenebuilder 可以找到jphoenix 库，但是您的项目/您编写的 java 代码找不到 jphoenix 库。这就是您收到ClassNotFoundException 的原因。因此，要解决此问题，您必须在项目中导入 jar 文件。我自己不使用eclipse，所以我自己不知道该怎么做。一个快速的谷歌揭示了这个答案：

how-to-import-a-jar-in-eclipse

据此，You can add a jar in Eclipse by right-clicking on the Project → Build Path → Configure Build Path. Under Libraries tab, click Add Jars or Add External JARs and give the Jar. 也许这会有所帮助。导入后，您的项目应该可以正确编译。祝你好运。