java - 创建新阶段时抛出 ExceptionInInitializerError

Question

我使用 swing JFrame 作为我的应用程序的 MainFrame。我有一个按钮应该创建一个新窗口。但它会在初始化时崩溃，我不知道为什么。

public class Dialog {
    private Stage window;

 public void display() {
    window = new Stage(); //This is line 45. This is place where it crash
    window.setMinWidth(350);
    window.setMinHeight(500);
    window.initModality(Modality.APPLICATION_MODAL);
    window.setTitle("Add new Stuff");
 //more code here
 }
}

这是整个异常错误

Exception in thread "AWT-EventQueue-0" java.lang.ExceptionInInitializerError
    at javafx.stage.Window.<init>(Window.java:1179)
    at javafx.stage.Stage.<init>(Stage.java:236)
    at javafx.stage.Stage.<init>(Stage.java:224)
    at main.Dialog.display(Dialog.java:45)
    at main.MainFrame.jButtonAddZamActionPerformed(MainFrame.java:400)
    at main.MainFrame.access$400(MainFrame.java:12)
    at main.MainFrame$5.actionPerformed(MainFrame.java:227)
    at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
    at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2346)
    at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
    at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
    at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
    at java.awt.Component.processMouseEvent(Component.java:6525)
    at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
    at java.awt.Component.processEvent(Component.java:6290)
    at java.awt.Container.processEvent(Container.java:2234)
    at java.awt.Component.dispatchEventImpl(Component.java:4881)
    at java.awt.Container.dispatchEventImpl(Container.java:2292)
    at java.awt.Component.dispatchEvent(Component.java:4703)
    at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4898)
    at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4533)
    at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4462)
    at java.awt.Container.dispatchEventImpl(Container.java:2278)
    at java.awt.Window.dispatchEventImpl(Window.java:2750)
    at java.awt.Component.dispatchEvent(Component.java:4703)
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:751)
    at java.awt.EventQueue.access$500(EventQueue.java:97)
    at java.awt.EventQueue$3.run(EventQueue.java:702)
    at java.awt.EventQueue$3.run(EventQueue.java:696)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:86)
    at java.awt.EventQueue$4.run(EventQueue.java:724)
    at java.awt.EventQueue$4.run(EventQueue.java:722)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:721)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.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)
Caused by: java.lang.IllegalStateException: This operation is permitted on the event thread only; currentThread = AWT-EventQueue-0
    at com.sun.glass.ui.Application.checkEventThread(Application.java:443)
    at com.sun.glass.ui.Screen.setEventHandler(Screen.java:245)
    at com.sun.javafx.tk.quantum.QuantumToolkit.setScreenConfigurationListener(QuantumToolkit.java:674)
    at javafx.stage.Screen.<clinit>(Screen.java:80)
    ... 43 more

有什么想法为什么会崩溃吗？谢谢

Answer 1

您可以在 swing 应用程序中使用 JavaFx 组件。我们为 ERP 应用程序执行了此操作，以显示带有 JavaFx 图表的仪表板。

初始化JavaFx相关代码应如下完成。

      Platform.runLater(new Runnable() {
            @Override
            public void run() {
                initFX(fxPanel);
            }
       });

请参阅以下链接了解更多详情 https://docs.oracle.com/javase/8/javafx/interoperability-tutorial/swing-fx-interoperability.htm