JavaFX-手动将图像添加到网格窗格
我有以下设置 三个tic-tac趾板是JavaFx中的网格 我正在尝试一种非常简单的方法,将ImageView添加到网格节点,以指示它是x还是o 我用的代码是JavaFX-手动将图像添加到网格窗格,java,javafx,gridpane,Java,Javafx,Gridpane,我有以下设置 三个tic-tac趾板是JavaFx中的网格 我正在尝试一种非常简单的方法,将ImageView添加到网格节点,以指示它是x还是o 我用的代码是 private void handleNewGameAction(ActionEvent event) throws IOException { FXMLLoader fxmlloader = new FXMLLoader(getClass().getResource("FXMLDocument.fxml"));
private void handleNewGameAction(ActionEvent event) throws IOException {
FXMLLoader fxmlloader = new FXMLLoader(getClass().getResource("FXMLDocument.fxml"));
GridPane pane = (GridPane)fxmlloader.getNamespace().get("topGrid");
Image image = new Image("x.png");
pane.add(new ImageView(image), 0, 0);
}
我得到的错误是
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.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
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.control.MenuItem.fire(MenuItem.java:462)
at com.sun.javafx.scene.control.skin.ContextMenuContent$MenuItemContainer.doSelect(ContextMenuContent.java:1405)
at com.sun.javafx.scene.control.skin.ContextMenuContent$MenuItemContainer.lambda$createChildren$343(ContextMenuContent.java:1358)
at com.sun.javafx.event.CompositeEventHandler$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$MouseEventNotification.run(GlassViewEventHandler.java:394)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:295)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$353(GlassViewEventHandler.java:432)
at com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:389)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:431)
at com.sun.glass.ui.View.handleMouseEvent(View.java:555)
at com.sun.glass.ui.View.notifyMouse(View.java:937)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$147(WinApplication.java:177)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:71)
at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:275)
at javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1769)
... 43 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 pkg3dtictactoe.FXMLDocumentController.handleNewGameAction(FXMLDocumentController.java:40)
... 53 more
Caused by: java.lang.IllegalArgumentException: Invalid URL or resource not found
at javafx.scene.image.Image.validateUrl(Image.java:1110)
... 55 more
线程“JavaFX应用程序线程”java.lang.RuntimeException中的异常:java.lang.reflect.InvocationTargetException
在javafx.fxml.fxmloader$MethodHandler.invoke(fxmloader.java:1774)
在javafx.fxml.fxmloader$controllermethodventhandler.handle(fxmloader.java:1657)
在com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)上
位于com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
位于com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
在com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
位于com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
位于com.sun.javafx.event.EventUtil.fireventimpl(EventUtil.java:74)
位于com.sun.javafx.event.EventUtil.firevent(EventUtil.java:49)
位于javafx.event.event.fireEvent(event.java:198)
位于javafx.scene.control.MenuItem.fire(MenuItem.java:462)
位于com.sun.javafx.scene.control.skin.ContextMenuContent$MenuItemContainer.doSelect(ContextMenuContent.java:1405)
位于com.sun.javafx.scene.control.skin.ContextMenuContent$MenuItemContainer.lambda$createChildren$343(ContextMenuContent.java:1358)
位于com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:218)
位于com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80)
位于com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
位于com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
在com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)上
在com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
位于com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
在com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
位于com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
在com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
位于com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
在com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
位于com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
位于com.sun.javafx.event.EventUtil.fireventimpl(EventUtil.java:74)
位于com.sun.javafx.event.EventUtil.firevent(EventUtil.java:54)
位于javafx.event.event.fireEvent(event.java:198)
位于javafx.scene.scene$MouseHandler.process(scene.java:3757)
在javafx.scene.scene$MouseHandler.access$1500(scene.java:3485)
位于javafx.scene.scene.impl_processMouseEvent(scene.java:1762)
位于javafx.scene.scene$ScenePeerListener.mouseEvent(scene.java:2494)
位于com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:394)
位于com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:295)
位于java.security.AccessController.doPrivileged(本机方法)
位于com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$353(GlassViewEventHandler.java:432)
位于com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:389)
位于com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:431)
位于com.sun.glass.ui.View.handleMouseEvent(View.java:555)
位于com.sun.glass.ui.View.notifyMouse(View.java:937)
在com.sun.glass.ui.win.WinApplication.\u runLoop(本机方法)
位于com.sun.glass.ui.win.WinApplication.lambda$null$147(WinApplication.java:177)
运行(Thread.java:748)
原因:java.lang.reflect.InvocationTargetException
在sun.reflect.NativeMethodAccessorImpl.invoke0(本机方法)处
位于sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
在sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)中
位于java.lang.reflect.Method.invoke(Method.java:498)
在sun.reflect.misc.Trampoline.invoke(MethodUtil.java:71)中
在sun.reflect.GeneratedMethodAccessor1.invoke处(未知源)
在sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)中
位于java.lang.reflect.Method.invoke(Method.java:498)
位于sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:275)
在javafx.fxml.fxmloader$MethodHandler.invoke(fxmloader.java:1769)
... 43多
原因:java.lang.IllegalArgumentException:无效URL:无效URL或未找到资源
位于javafx.scene.image.image.validateUrl(image.java:1118)
在javafx.scene.image.image.(image.java:620)
位于pkg3dtictactoe.FXMLDocumentController.handleNewGameAction(FXMLDocumentController.java:40)
... 53多
原因:java.lang.IllegalArgumentException:找不到无效的URL或资源
位于javafx.scene.image.image.validateUrl(image.java:1110)
... 55多
我真的不知所措,我一直在看堆栈溢出,看到的答案和我写的一模一样,但我仍然得到上面的错误 首先,要回答眼前的问题,错误的最终原因由堆栈跟踪给出:
Caused by: java.lang.IllegalArgumentException: Invalid URL or resource not found
at javafx.scene.image.Image.validateUrl(Image.java:1110)
... 55 more
这意味着您提供给图像的构造函数的URL(“x.png”
)无效。要么你用错了拍子
private void handleNewGameAction(ActionEvent event) throws IOException {
FXMLLoader fxmlloader = new FXMLLoader(getClass().getResource("FXMLDocument.fxml"));
GridPane pane = (GridPane)fxmlloader.getNamespace().get("topGrid");
Image image = new Image("x.png");
pane.add(new ImageView(image), 0, 0);
}
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.scene.image.ImageView;
import javafx.scene.layout.GridPane;
public class Controller {
@FXML
private GridPane topGrid;
@FXML
private void handleAction(ActionEvent event) {
topGrid.add(new ImageView(/*image*/), 0, 0);
event.consume();
}
}