我没有运行Scene Builder代码。我从OpenJDK 11和OpenJFX 11开始。该代码是从JAVA8示例（https://www.youtube.com/watch?v=uPm1n-cyupU）中采用的。
我添加了模块信息所需的程序包名称。我添加了一个fx：controller =“ myfx.MyController”。我尝试使用fx：root和不同的名称进行尝试，也没有任何使用，我仍然遇到了ConstructLoadException，带有botton和text字段的javafx.fxml.LoadException
Main.java
package myfx;
import java.net.URL;
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Scene;
import javafx.scene.layout.Pane;
import javafx.stage.Stage;
public class Main extends Application {
public static void main(String[] args) {
Application.launch(args);
}
@Override
public void start(Stage primaryStage) throws Exception {
ClassLoader classLoader = ClassLoader.getSystemClassLoader();
URL url = classLoader.getResource("Sample.fxml");
System.out.println(url);
Pane mainPane = (Pane) FXMLLoader.load(url);
primaryStage.setScene(new Scene(mainPane));
primaryStage.show();
}
}
MyController.java
package myfx;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.scene.control.TextField;
public class MyController {
@FXML
private TextField tf_name;
@FXML
void onSubmitClick(ActionEvent event) {
System.out.println(tf_name.getText());
}
}
Sample.fxml
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.control.Button?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.control.TextField?>
<?import javafx.scene.layout.Pane?>
<Pane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/11.0.1" xmlns:fx="http://javafx.com/fxml/1" fx:controller="myfx.MyController">
<children>
<Button layoutX="287.0" layoutY="158.0" mnemonicParsing="false" onAction="#onSubmitClick" text="Submit" />
<Label layoutX="140.0" layoutY="125.0" text="Name:" />
<TextField fx:id="tf_name" layoutX="192.0" layoutY="121.0" />
</children>
</Pane>
module-info.java
module myfx {
requires javafx.fxml;
requires javafx.graphics;
requires javafx.controls;
exports myfx;
}
控制台
file:/D:/Users/v.sonntag/Documents/eclipse/eclipse-workspace/myfx/bin/Sample.fxml
Exception in Application start method
java.lang.reflect.InvocationTargetException
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:464)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:363)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at java.base/sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:1051)
Caused by: java.lang.RuntimeException: Exception in Application start method
at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:900)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication$2(LauncherImpl.java:195)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: javafx.fxml.LoadException:
/D:/Users/v.sonntag/Documents/eclipse/eclipse-workspace/myfx/bin/Sample.fxml:10
at javafx.fxml/javafx.fxml.FXMLLoader.constructLoadException(FXMLLoader.java:2625)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2603)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2466)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3237)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3194)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3163)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3136)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3113)
at javafx.fxml/javafx.fxml.FXMLLoader.load(FXMLLoader.java:3106)
at myfx/myfx.Main.start(Main.java:21)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$9(LauncherImpl.java:846)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runAndWait$12(PlatformImpl.java:455)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:428)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:427)
at javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96)
at javafx.graphics/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at javafx.graphics/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:174)
... 1 more
Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make void myfx.MyController.onSubmitClick(javafx.event.ActionEvent) accessible: module myfx does not "opens myfx" to module javafx.fxml
at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:340)
at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:280)
at java.base/java.lang.reflect.Method.checkCanSetAccessible(Method.java:198)
at java.base/java.lang.reflect.Method.setAccessible(Method.java:192)
at javafx.fxml/javafx.fxml.FXMLLoader$ControllerAccessor.addAccessibleMethods(FXMLLoader.java:3515)
at javafx.fxml/javafx.fxml.FXMLLoader$ControllerAccessor.access$4000(FXMLLoader.java:3328)
at javafx.fxml/javafx.fxml.FXMLLoader$ControllerAccessor$1.run(FXMLLoader.java:3447)
at javafx.fxml/javafx.fxml.FXMLLoader$ControllerAccessor$1.run(FXMLLoader.java:3440)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at javafx.fxml/javafx.fxml.FXMLLoader$ControllerAccessor.addAccessibleMembers(FXMLLoader.java:3439)
at javafx.fxml/javafx.fxml.FXMLLoader$ControllerAccessor.getControllerMethods(FXMLLoader.java:3399)
at javafx.fxml/javafx.fxml.FXMLLoader$Element.getControllerMethodHandle(FXMLLoader.java:570)
at javafx.fxml/javafx.fxml.FXMLLoader$Element.processEventHandlerAttributes(FXMLLoader.java:607)
at javafx.fxml/javafx.fxml.FXMLLoader$ValueElement.processEndElement(FXMLLoader.java:778)
at javafx.fxml/javafx.fxml.FXMLLoader.processEndElement(FXMLLoader.java:2838)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2557)
... 17 more
Exception running application myfx.Main