我正在尝试制作名为“奥赛罗”的游戏。我在scenebuilder中创建了一个按钮来重启游戏。 我有一个gridPane [从0到7] [从0到7]（昏暗数组）和每个块，例如myGridPane [i] [j]一个图像查看器，其中包含我的作品（黑色或白色） 。我有一些错误。但我无法理解我的错误。帮助我，谢谢你。
当我按“重新开始游戏按钮”时出现错误
SerializableFunction<BoundedWindow, String>我的董事会代码
> Exception in thread "JavaFX Application Thread" java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
at javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1774)
at javafx.fxml.FXMLLoader$ControllerMethodEventHandler.handle(FXMLLoader.java:1657)
at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:49)
at javafx.event.Event.fireEvent(Event.java:198)
at javafx.scene.Node.fireEvent(Node.java:8413)
at javafx.scene.control.Button.fire(Button.java:185)
at com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(ButtonBehavior.java:182)
at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(BehaviorSkinBase.java:96)
at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(BehaviorSkinBase.java:89)
at com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:218)
at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
at javafx.event.Event.fireEvent(Event.java:198)
at javafx.scene.Scene$MouseHandler.process(Scene.java:3757)
at javafx.scene.Scene$MouseHandler.access$1500(Scene.java:3485)
at javafx.scene.Scene.impl_processMouseEvent(Scene.java:1762)
at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2494)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:381)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:295)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$354(GlassViewEventHandler.java:417)
at com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:389)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:416)
at com.sun.glass.ui.View.handleMouseEvent(View.java:555)
at com.sun.glass.ui.View.notifyMouse(View.java:937)
at com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method)
at com.sun.glass.ui.gtk.GtkApplication.lambda$null$49(GtkApplication.java:139)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:71)
at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:275)
at javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1769)
... 52 more
Caused by: java.lang.IllegalArgumentException: Invalid URL: Invalid URL or resource not found
at javafx.scene.image.Image.validateUrl(Image.java:1118)
at javafx.scene.image.Image.<init>(Image.java:620)
at othello.controller.BoardController.restartGame(BoardController.java:72)
... 62 more
Caused by: java.lang.IllegalArgumentException: Invalid URL or resource not found
at javafx.scene.image.Image.validateUrl(Image.java:1110)
... 64 more
路径：
@FXML
private void restartGame(ActionEvent event)throws Exception{
myGrid = new GridPane();
black = new Image("images/black.png");
white = new Image("images/white.png");
empty = new Image("images/empty.png");
ImageView square = new ImageView();
square.setImage(empty);
ImageView blackSquare = new ImageView();
blackSquare.setImage(black);
ImageView whiteSquare = new ImageView();
whiteSquare.setImage(white);
for (int i = 0; i < 8; i++){ //Per righe
for (int j = 0; j < 8; j++){ // Per colonne
myGrid.add(square, i, j);
}
}
myGrid.add(blackSquare, 3, 3);
myGrid.add(blackSquare, 4, 3);
myGrid.add(whiteSquare, 4, 4);
myGrid.add(whiteSquare, 4, 3);
}
答案 0 :(得分：3)
来自Image班documentation：
URL支持的所有URL都可以传递给构造函数。如果传递的字符串不是有效的URL，而是路径，则在这种情况下在类路径上搜索Image。
因此，将相对于类路径搜索您的图像路径images/black.png，并且显然在类路径的根处没有images资源。你需要
new Image("othello/images/black.png")
等
由于您的Main类位于othello包中，因此另一种选择是获取相对于该资源的资源，例如
new Image(Main.class.getResource("images/black.png"))
等
请注意，您还有其他错误，但由于代码在您访问之前失败，因此未显示错误。您不能多次将同一节点添加到场景图中，所以
myGrid.add(blackSquare, 3, 3);
myGrid.add(blackSquare, 4, 3);
会抛出IllegalStateException，其中包含“已添加重复的子项”消息，因为您要多次向场景图添加blackSquare。您需要为网格中的每个方块创建一个新的ImageView（如果您愿意，可以在不同的Image中使用相同的ImageView。）
所以你应该这样做：
@FXML
private void restartGame(ActionEvent event)throws Exception{
myGrid = new GridPane();
black = new Image(Main.class.getResource("images/black.png"));
white = new Image(Main.class.getResource("images/white.png"));
empty = new Image(Main.class.getResource("images/empty.png"));
for (int i = 0; i < 8; i++){ //Per righe
for (int j = 0; j < 8; j++){ // Per colonne
myGrid.add(square, i, j);
}
}
myGrid.add(new ImageView(black), 3, 3);
myGrid.add(new ImageView(black), 4, 3);
myGrid.add(new ImageView(white), 4, 4);
myGrid.add(new ImageView(white), 4, 3);
}
答案 1 :(得分：0)
您收到 java.lang.IllegalArgumentException：网址无效。您没有提供有效的图片网址。假设我想显示一个名为boldedRow.png的图像，而boldedRow.png恰好位于视图文件夹中，我的主java文件位于src目录中，然后我可以通过以下方式获取图像网址。
计划结构： src目录：
- ＆GT; ShowImage.java
- ＆gt; view / boldedRow.png
public class ShowImage extends Application {
@Override
public void start(Stage primaryStage) throws Exception {
Pane root = new Pane();
ImageView image = new ImageView(new Image(getClass().getResourceAsStream("view/boldedRow.png")));
root.getChildren().add(image);
Scene scene = new Scene(root);
primaryStage.setScene(scene);
primaryStage.show();
}
public static void main(String[] args) {
launch(args);
}
}
答案 2 :(得分：-2)
使用此代码获取图像
error: ISO C++ forbids casting to an array type 'va_list {aka __va_list_tag [1]}'