更改场景生成器和 jdk 后 javaFX 程序不工作
javaFX program not working after changing the scene builder and jdk
我的程序之前运行良好，我将我的场景构建器从 JavaFx 场景构建器 2.0 更改为胶子场景构建器 10，以添加一些 CSS 样式。我添加了样式，程序显示错误，例如 WARNING: Loading FXML document with JavaFX API of JavaFX 10.0.1 by JavaFX runtime of version 9.0.4 然后我更新了我的JDK 到版本 10.0.2 但它仍然显示这样的错误。
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:564)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:473)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:372)
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:564)
at java.base/sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:941)
Caused by: java.lang.RuntimeException: Exception in Application start method
at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:973)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication(LauncherImpl.java:198)
at java.base/java.lang.Thread.run(Thread.java:844)
Caused by: java.lang.NoClassDefFoundError: com/sun/javafx/css/parser/CSSParser
at de.jensd.fx.glyphs.GlyphIcon.<clinit>(GlyphIcon.java:48)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:488)
at java.base/java.lang.Class.newInstance(Class.java:560)
at javafx.fxml/javafx.fxml.FXMLLoader$InstanceDeclarationElement.constructValue(FXMLLoader.java:1019)
at javafx.fxml/javafx.fxml.FXMLLoader$ValueElement.processStartElement(FXMLLoader.java:754)
at javafx.fxml/javafx.fxml.FXMLLoader.processStartElement(FXMLLoader.java:2722)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2552)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2466)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3253)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3210)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3179)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3152)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3129)
at javafx.fxml/javafx.fxml.FXMLLoader.load(FXMLLoader.java:3122)
at sample.Main.start(Main.java:17)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1(LauncherImpl.java:919)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runAndWait(PlatformImpl.java:449)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater(PlatformImpl.java:418)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater(PlatformImpl.java:417)
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(WinApplication.java:175)
... 1 more
Caused by: java.lang.ClassNotFoundException: com.sun.javafx.css.parser.CSSParser
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:582)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:190)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:499)
... 27 more
Exception running application sample.Main
我的主要 class 是
public class Main extends Application {
@Override
public void start(Stage primaryStage) throws Exception{
Parent root = FXMLLoader.load(getClass().getResource("../Interface/sample.fxml"));
primaryStage.setTitle("JFS");
primaryStage.setScene(new Scene(root, 600, 400));
primaryStage.show();
}
public static void main(String[] args) {
launch(args);
}
}
我的控制器 class 是
public class Controller {
public TextField newsletterEmail;
public JFXButton regButton;
public JFXTextField loginUserName;
public JFXPasswordField loginPassword;
public JFXButton loginButton;
Connectivity connection = new Connectivity();
Connection connec = connection.getConnection();
SceneSwitcher sceneSwitcher = new SceneSwitcher();
ViewMyAccount viewMyAccount = new ViewMyAccount();
loginValidation validateLogin = new loginValidation();
public void loginButtonClicked(ActionEvent actionEvent) {
System.out.println(loginUserName.getText());
/*viewMyAccount.setMailLabel(loginUserName.getText());
System.out.println(viewMyAccount.getMailLabel());*/
boolean validateCustomer = validateLogin.CusLoginValidate(loginUserName.getText(),loginPassword.getText(),connec);
boolean validateStaff = validateLogin.StaffLoginValidate(loginUserName.getText(),loginPassword.getText(),connec);
boolean validateOwner = validateLogin.OwnerLoginValidate(loginUserName.getText(),loginPassword.getText(),connec);
if(loginUserName.getText().equals("") || loginPassword.getText().equals("")){
AlertBox.displayAlertBox("ERROR!","Both fields can't be empty!");
}else{
if(validateCustomer){
sceneSwitcher.switchScene(loginButton,"customerView.fxml","Customer");
}else if(validateStaff){
sceneSwitcher.switchScene(loginButton,"staffView.fxml","Customer");
}else if(validateOwner){
sceneSwitcher.switchScene(loginButton,"ownerView.fxml","Customer");
}else{
AlertBox.displayAlertBox("ERROR!","Invalid Username or Password! ");
}
}
}
public void registerButtonClicked(ActionEvent actionEvent) {
sceneSwitcher.switchScene(regButton,"register.fxml","Register");
}
NewsletterValidation validateEmail = new NewsletterValidation();
public void newsletterButtonClicked(ActionEvent actionEvent) throws SQLException {
boolean isNewsletterEmailEmpty = validateEmail.invalidError(newsletterEmail);
boolean isValid = validateEmail.isValidEmailAddress(newsletterEmail);
boolean isEmailExist = validateEmail.checkEmailExists(newsletterEmail.getText(),connec);
if(isNewsletterEmailEmpty && isValid && isEmailExist){
PreparedStatement pstmt = null;
String sql = "INSERT INTO `nwemails` (`email`)\n" +
"VALUES (?);";
try {
pstmt = connec.prepareStatement(sql);
pstmt.setString(1,newsletterEmail.getText());
int i = pstmt.executeUpdate();
System.out.println("newsletter email update status = " + i);
AlertBox.displayAlertBox("Alert!","You have successfully signed up for the news letter");
} catch (SQLException e) {
System.err.println(e);
}finally {
pstmt.close();
}
}else{
System.out.println("Validation failed");
}
}
}
我的 FXML 文件是
<?xml version="1.0" encoding="UTF-8"?>
<?import com.jfoenix.controls.JFXButton?>
<?import com.jfoenix.controls.JFXPasswordField?>
<?import com.jfoenix.controls.JFXTextField?>
<?import de.jensd.fx.glyphs.fontawesome.FontAwesomeIconView?>
<?import javafx.scene.control.Button?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.control.TextField?>
<?import javafx.scene.layout.AnchorPane?>
<?import javafx.scene.text.Font?>
<AnchorPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" stylesheets="@../CSS/dracula.css" xmlns="http://javafx.com/javafx/10.0.1" xmlns:fx="http://javafx.com/fxml/1" fx:controller="sample.Controller">
<children>
<Label layoutX="227.0" layoutY="259.0" prefHeight="17.0" prefWidth="127.0" text="Don't have an account?" />
<Label layoutX="207.0" prefHeight="74.0" prefWidth="182.0" text="JFS" AnchorPane.leftAnchor="207.0" AnchorPane.rightAnchor="211.0" AnchorPane.topAnchor="0.0">
<font>
<Font name="Matura MT Script Capitals" size="53.0" />
</font>
</Label>
<Label layoutX="241.0" layoutY="98.0" prefHeight="17.0" prefWidth="118.0" text="Jeff's Fishing Shack" textAlignment="CENTER">
<font>
<Font name="Marlett" size="13.0" />
</font>
</Label>
<Button layoutX="186.0" layoutY="370.0" mnemonicParsing="false" onAction="#newsletterButtonClicked" prefHeight="25.0" prefWidth="210.0" text="Send me Updates" />
<Label layoutX="111.0" layoutY="316.0" prefHeight="17.0" prefWidth="378.0" text="Or sign up for The free newsletter covering the top industry headlines" />
<TextField fx:id="newsletterEmail" layoutX="195.0" layoutY="339.0" prefHeight="25.0" prefWidth="191.0" promptText="Email" />
<JFXTextField fx:id="loginUserName" layoutX="203.0" layoutY="136.0" prefHeight="25.0" prefWidth="191.0" promptText="Username (email)" />
<JFXPasswordField fx:id="loginPassword" layoutX="203.0" layoutY="185.0" prefHeight="25.0" prefWidth="191.0" promptText="Password" />
<FontAwesomeIconView glyphName="USER" layoutX="171.0" layoutY="161.0" size="25.0" wrappingWidth="15.0" />
<FontAwesomeIconView glyphName="KEY" layoutX="170.0" layoutY="208.0" size="25.0" wrappingWidth="15.0" />
<JFXButton fx:id="loginButton" layoutX="265.0" layoutY="225.0" onAction="#loginButtonClicked" text="LOGIN" />
<JFXButton fx:id="regButton" layoutX="257.0" layoutY="284.0" onAction="#registerButtonClicked" text="REGISTER" />
</children>
</AnchorPane>
堆栈跟踪将此显示为错误行
Parent root = FXMLLoader.load(getClass().getResource("../Interface/sample.fxml"));
我已经浪费了 3 个多小时来寻找答案。所以请帮我解决这个问题。
fontawesome 版本：
这个错误：
Caused by: java.lang.NoClassDefFoundError: com/sun/javafx/css/parser/CSSParser
at de.jensd.fx.glyphs.GlyphIcon.<clinit>(GlyphIcon.java:48)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
表示您的一个依赖项 (de.jensd.fx.glyphs.GlyphIcon) 正在尝试访问 JDK 9/10 中不存在的 class (com.sun.javafx.css.parser.CSSParser)。
随着 Java 9 的发布，许多 JavaFX class 私有的 (com.sun.javafx.*) 被移动到 public API（在本例中，javafx.css.parser.CSSParser）。
如果你 运行 在 Java 9 或 10 上，你必须使用至少与 Java 9 兼容的第三方依赖项。
来自您的依赖项列表：
- ControlsFX
8.40.11兼容Java/JavaFX8.需要使用ControlsFX 9.0.0
可以从Maven Central下载jar，或者添加maven/gradle坐标：
<dependency>
<groupId>org.controlsfx</groupId>
<artifactId>controlsfx</artifactId>
<version>9.0.0</version>
</dependency>
或：
compile 'org.controlsfx:controlsfx:9.0.0'
- FontAwesomeFX
FontAwesomeFX 8.15也兼容Java/JavaFX8，所以你需要使用9版本：
罐子：
fontawesomefx-commons, fontawesomefx-controls
或依赖项：
compile 'de.jensd:fontawesomefx-commons:9.1.2'
compile 'de.jensd:fontawesomefx-controls:9.1.2'
其他：
compile 'de.jensd:fontawesomefx-emojione:3.1.1-9.1.2'
compile 'de.jensd:fontawesomefx-fontawesome:4.7.0-9.1.2'
compile 'de.jensd:fontawesomefx-icons525:4.2.0-9.1.2'
compile 'de.jensd:fontawesomefx-materialdesignfont:2.0.26-9.1.2'
compile 'de.jensd:fontawesomefx-materialicons:2.2.0-9.1.2'
compile 'de.jensd:fontawesomefx-octicons:4.3.0-9.1.2'
compile 'de.jensd:fontawesomefx-weathericons:2.0.10-9.1.2'
最后，如评论中所述，该警告仅表示您的 FXML 是使用 JDK 运行 更新的版本创建的。可以忽略。
我的程序之前运行良好，我将我的场景构建器从 JavaFx 场景构建器 2.0 更改为胶子场景构建器 10，以添加一些 CSS 样式。我添加了样式，程序显示错误，例如 WARNING: Loading FXML document with JavaFX API of JavaFX 10.0.1 by JavaFX runtime of version 9.0.4 然后我更新了我的JDK 到版本 10.0.2 但它仍然显示这样的错误。
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:564)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:473)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:372)
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:564)
at java.base/sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:941)
Caused by: java.lang.RuntimeException: Exception in Application start method
at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:973)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication(LauncherImpl.java:198)
at java.base/java.lang.Thread.run(Thread.java:844)
Caused by: java.lang.NoClassDefFoundError: com/sun/javafx/css/parser/CSSParser
at de.jensd.fx.glyphs.GlyphIcon.<clinit>(GlyphIcon.java:48)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:488)
at java.base/java.lang.Class.newInstance(Class.java:560)
at javafx.fxml/javafx.fxml.FXMLLoader$InstanceDeclarationElement.constructValue(FXMLLoader.java:1019)
at javafx.fxml/javafx.fxml.FXMLLoader$ValueElement.processStartElement(FXMLLoader.java:754)
at javafx.fxml/javafx.fxml.FXMLLoader.processStartElement(FXMLLoader.java:2722)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2552)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2466)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3253)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3210)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3179)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3152)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3129)
at javafx.fxml/javafx.fxml.FXMLLoader.load(FXMLLoader.java:3122)
at sample.Main.start(Main.java:17)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1(LauncherImpl.java:919)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runAndWait(PlatformImpl.java:449)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater(PlatformImpl.java:418)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater(PlatformImpl.java:417)
at javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$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$runLoop(WinApplication.java:175)
... 1 more
Caused by: java.lang.ClassNotFoundException: com.sun.javafx.css.parser.CSSParser
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:582)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:190)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:499)
... 27 more
Exception running application sample.Main
我的主要 class 是
public class Main extends Application {
@Override
public void start(Stage primaryStage) throws Exception{
Parent root = FXMLLoader.load(getClass().getResource("../Interface/sample.fxml"));
primaryStage.setTitle("JFS");
primaryStage.setScene(new Scene(root, 600, 400));
primaryStage.show();
}
public static void main(String[] args) {
launch(args);
}
}
我的控制器 class 是
public class Controller {
public TextField newsletterEmail;
public JFXButton regButton;
public JFXTextField loginUserName;
public JFXPasswordField loginPassword;
public JFXButton loginButton;
Connectivity connection = new Connectivity();
Connection connec = connection.getConnection();
SceneSwitcher sceneSwitcher = new SceneSwitcher();
ViewMyAccount viewMyAccount = new ViewMyAccount();
loginValidation validateLogin = new loginValidation();
public void loginButtonClicked(ActionEvent actionEvent) {
System.out.println(loginUserName.getText());
/*viewMyAccount.setMailLabel(loginUserName.getText());
System.out.println(viewMyAccount.getMailLabel());*/
boolean validateCustomer = validateLogin.CusLoginValidate(loginUserName.getText(),loginPassword.getText(),connec);
boolean validateStaff = validateLogin.StaffLoginValidate(loginUserName.getText(),loginPassword.getText(),connec);
boolean validateOwner = validateLogin.OwnerLoginValidate(loginUserName.getText(),loginPassword.getText(),connec);
if(loginUserName.getText().equals("") || loginPassword.getText().equals("")){
AlertBox.displayAlertBox("ERROR!","Both fields can't be empty!");
}else{
if(validateCustomer){
sceneSwitcher.switchScene(loginButton,"customerView.fxml","Customer");
}else if(validateStaff){
sceneSwitcher.switchScene(loginButton,"staffView.fxml","Customer");
}else if(validateOwner){
sceneSwitcher.switchScene(loginButton,"ownerView.fxml","Customer");
}else{
AlertBox.displayAlertBox("ERROR!","Invalid Username or Password! ");
}
}
}
public void registerButtonClicked(ActionEvent actionEvent) {
sceneSwitcher.switchScene(regButton,"register.fxml","Register");
}
NewsletterValidation validateEmail = new NewsletterValidation();
public void newsletterButtonClicked(ActionEvent actionEvent) throws SQLException {
boolean isNewsletterEmailEmpty = validateEmail.invalidError(newsletterEmail);
boolean isValid = validateEmail.isValidEmailAddress(newsletterEmail);
boolean isEmailExist = validateEmail.checkEmailExists(newsletterEmail.getText(),connec);
if(isNewsletterEmailEmpty && isValid && isEmailExist){
PreparedStatement pstmt = null;
String sql = "INSERT INTO `nwemails` (`email`)\n" +
"VALUES (?);";
try {
pstmt = connec.prepareStatement(sql);
pstmt.setString(1,newsletterEmail.getText());
int i = pstmt.executeUpdate();
System.out.println("newsletter email update status = " + i);
AlertBox.displayAlertBox("Alert!","You have successfully signed up for the news letter");
} catch (SQLException e) {
System.err.println(e);
}finally {
pstmt.close();
}
}else{
System.out.println("Validation failed");
}
}
}
我的 FXML 文件是
<?xml version="1.0" encoding="UTF-8"?>
<?import com.jfoenix.controls.JFXButton?>
<?import com.jfoenix.controls.JFXPasswordField?>
<?import com.jfoenix.controls.JFXTextField?>
<?import de.jensd.fx.glyphs.fontawesome.FontAwesomeIconView?>
<?import javafx.scene.control.Button?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.control.TextField?>
<?import javafx.scene.layout.AnchorPane?>
<?import javafx.scene.text.Font?>
<AnchorPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" stylesheets="@../CSS/dracula.css" xmlns="http://javafx.com/javafx/10.0.1" xmlns:fx="http://javafx.com/fxml/1" fx:controller="sample.Controller">
<children>
<Label layoutX="227.0" layoutY="259.0" prefHeight="17.0" prefWidth="127.0" text="Don't have an account?" />
<Label layoutX="207.0" prefHeight="74.0" prefWidth="182.0" text="JFS" AnchorPane.leftAnchor="207.0" AnchorPane.rightAnchor="211.0" AnchorPane.topAnchor="0.0">
<font>
<Font name="Matura MT Script Capitals" size="53.0" />
</font>
</Label>
<Label layoutX="241.0" layoutY="98.0" prefHeight="17.0" prefWidth="118.0" text="Jeff's Fishing Shack" textAlignment="CENTER">
<font>
<Font name="Marlett" size="13.0" />
</font>
</Label>
<Button layoutX="186.0" layoutY="370.0" mnemonicParsing="false" onAction="#newsletterButtonClicked" prefHeight="25.0" prefWidth="210.0" text="Send me Updates" />
<Label layoutX="111.0" layoutY="316.0" prefHeight="17.0" prefWidth="378.0" text="Or sign up for The free newsletter covering the top industry headlines" />
<TextField fx:id="newsletterEmail" layoutX="195.0" layoutY="339.0" prefHeight="25.0" prefWidth="191.0" promptText="Email" />
<JFXTextField fx:id="loginUserName" layoutX="203.0" layoutY="136.0" prefHeight="25.0" prefWidth="191.0" promptText="Username (email)" />
<JFXPasswordField fx:id="loginPassword" layoutX="203.0" layoutY="185.0" prefHeight="25.0" prefWidth="191.0" promptText="Password" />
<FontAwesomeIconView glyphName="USER" layoutX="171.0" layoutY="161.0" size="25.0" wrappingWidth="15.0" />
<FontAwesomeIconView glyphName="KEY" layoutX="170.0" layoutY="208.0" size="25.0" wrappingWidth="15.0" />
<JFXButton fx:id="loginButton" layoutX="265.0" layoutY="225.0" onAction="#loginButtonClicked" text="LOGIN" />
<JFXButton fx:id="regButton" layoutX="257.0" layoutY="284.0" onAction="#registerButtonClicked" text="REGISTER" />
</children>
</AnchorPane>
堆栈跟踪将此显示为错误行
Parent root = FXMLLoader.load(getClass().getResource("../Interface/sample.fxml"));
我已经浪费了 3 个多小时来寻找答案。所以请帮我解决这个问题。
fontawesome 版本：
这个错误：
Caused by: java.lang.NoClassDefFoundError: com/sun/javafx/css/parser/CSSParser
at de.jensd.fx.glyphs.GlyphIcon.<clinit>(GlyphIcon.java:48)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
表示您的一个依赖项 (de.jensd.fx.glyphs.GlyphIcon) 正在尝试访问 JDK 9/10 中不存在的 class (com.sun.javafx.css.parser.CSSParser)。
随着 Java 9 的发布，许多 JavaFX class 私有的 (com.sun.javafx.*) 被移动到 public API（在本例中，javafx.css.parser.CSSParser）。
如果你 运行 在 Java 9 或 10 上，你必须使用至少与 Java 9 兼容的第三方依赖项。
来自您的依赖项列表：
- ControlsFX
8.40.11兼容Java/JavaFX8.需要使用ControlsFX 9.0.0
可以从Maven Central下载jar，或者添加maven/gradle坐标：
<dependency>
<groupId>org.controlsfx</groupId>
<artifactId>controlsfx</artifactId>
<version>9.0.0</version>
</dependency>
或：
compile 'org.controlsfx:controlsfx:9.0.0'
- FontAwesomeFX
FontAwesomeFX 8.15也兼容Java/JavaFX8，所以你需要使用9版本：
罐子： fontawesomefx-commons, fontawesomefx-controls
或依赖项：
compile 'de.jensd:fontawesomefx-commons:9.1.2'
compile 'de.jensd:fontawesomefx-controls:9.1.2'
其他：
compile 'de.jensd:fontawesomefx-emojione:3.1.1-9.1.2'
compile 'de.jensd:fontawesomefx-fontawesome:4.7.0-9.1.2'
compile 'de.jensd:fontawesomefx-icons525:4.2.0-9.1.2'
compile 'de.jensd:fontawesomefx-materialdesignfont:2.0.26-9.1.2'
compile 'de.jensd:fontawesomefx-materialicons:2.2.0-9.1.2'
compile 'de.jensd:fontawesomefx-octicons:4.3.0-9.1.2'
compile 'de.jensd:fontawesomefx-weathericons:2.0.10-9.1.2'
最后，如评论中所述，该警告仅表示您的 FXML 是使用 JDK 运行 更新的版本创建的。可以忽略。