问题描述
当我将maven项目移至模块化模式时，它开始出现一个错误，每次我尝试从资源中获取fxml来切换场景时都会引发错误。
奇怪的是，我可以从主类中获取fxml资源，而不能从控制器包中的Utils自定义类中获取fxml资源。在履历表中，我可以加载第一个场景，但是当我尝试切换到另一个场景时，我的应用程序崩溃了。我已经尝试了在堆栈中找到的所有解决方案，但没有任何解决方案可以解决我的问题。
MainClass中的打印内容getClass（）。GetResource（“ fxml / tab_menu.fxml”）：
file:/home/arantesandre97/Developer/certeducSignerApp/target/classes/com/certeduc/fxml/tab_menu.fxml
UtilsClass Utils.class.GetResource（“ ../ fxml / login.fxml”）中的打印内容：
null
我的项目文件： Java Project Files
我的项目模块：
module signerapp {
requires transitive javafx.controls;
requires javafx.fxml;
requires com.jfoenix;
requires org.kordamp.iconli.core;
requires org.kordamp.ikonli.fontawesome;
requires org.kordamp.ikonli.fontawesome5;
requires org.kordamp.ikonli.javafx;
opens com.certeduc.controller to javafx.fxml;
exports com.certeduc;
}
我的Maven配置：
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.certeduc</groupId>
<artifactId>signerapp</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<name>signerapp</name>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.release>11</maven.compiler.release>
<javafx.version>13</javafx.version>
</properties>
<organization>
<!-- Used as the 'vendor' for JNLP generation -->
<name>Your Organisation</name>
</organization>
<dependencies>
<dependency>
<groupId>org.openjfx</groupId>
<artifactId>javafx-controls</artifactId>
<version>${javafx.version}</version>
</dependency>
<dependency>
<groupId>org.openjfx</groupId>
<artifactId>javafx-fxml</artifactId>
<version>${javafx.version}</version>
</dependency>
<dependency>
<groupId>com.jfoenix</groupId>
<artifactId>jfoenix</artifactId>
<version>9.0.1</version>
</dependency>
<dependency>
<groupId>org.kordamp.ikonli</groupId>
<artifactId>ikonli-core</artifactId>
<version>11.5.0</version>
</dependency>
<dependency>
<groupId>org.kordamp.ikonli</groupId>
<artifactId>ikonli-javafx</artifactId>
<version>11.5.0</version>
</dependency>
<dependency>
<groupId>org.kordamp.ikonli</groupId>
<artifactId>ikonli-fontawesome-pack</artifactId>
<version>11.5.0</version>
</dependency>
<dependency>
<groupId>org.kordamp.ikonli</groupId>
<artifactId>ikonli-fontawesome5-pack</artifactId>
<version>11.5.0</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
<configuration>
<release>${maven.compiler.release}</release>
</configuration>
</plugin>
<plugin>
<groupId>org.openjfx</groupId>
<artifactId>javafx-maven-plugin</artifactId>
<version>0.0.3</version>
<configuration>
<release>${maven.compiler.release}</release>
<jlinkImageName>signerapp</jlinkImageName>
<launcher>launcher</launcher>
<mainClass>com.certeduc.MainApp</mainClass>
<options>
<option>--add-opens</option>
<option>javafx.graphics/com.sun.javafx.scene=com.jfoenix</option>
<option>--add-opens</option>
<option>javafx.controls/com.sun.javafx.scene.control.behavior=com.jfoenix</option>
<option>--add-opens</option>
<option>javafx.controls/com.sun.javafx.scene.control=com.jfoenix</option>
<option>--add-opens</option>
<option>javafx.base/com.sun.javafx.binding=com.jfoenix</option>
<option>--add-opens</option>
<option>javafx.graphics/com.sun.javafx.stage=com.jfoenix</option>
<option>--add-opens</option>
<option>javafx.base/com.sun.javafx.event=com.jfoenix</option>
<option>--add-exports</option>
<option>javafx.controls/com.sun.javafx.scene.control.behavior=com.jfoenix</option>
<option>--add-exports</option>
<option>javafx.controls/com.sun.javafx.scene.control=com.jfoenix</option>
<option>--add-exports</option>
<option>javafx.base/com.sun.javafx.binding=com.jfoenix</option>
<option>--add-exports</option>
<option>javafx.graphics/com.sun.javafx.stage=com.jfoenix</option>
<option>--add-exports</option>
<option>javafx.base/com.sun.javafx.event=com.jfoenix</option>
</options>
</configuration>
</plugin>
</plugins>
</build>
</project>
我的主班：
package com.certeduc;
import java.io.IOException;
import com.certeduc.controller.Utils;
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.image.Image;
import javafx.stage.Stage;
public class MainApp extends Application {
@Override
public void start(Stage stage) throws Exception {
Parent root = FXMLLoader.load(getClass().getResource("fxml/tab_menu.fxml")); //Here I can access the file perfectly ("../fxml/tab_menu.fxml")
Image appIcon = new Image(getClass().getResourceAsstream("icons/signature_icon_256.png"));
stage.getIcons().add(appIcon);
Scene scene = new Scene(root);
scene.getStylesheets().add(getClass().getResource("styles/styles.css").toExternalForm());
stage.setTitle("SignerApp");
stage.setScene(scene);
stage.show();
Utils.setwindowMinimumSize(stage,scene);
}
public static void main(String[] args) {
launch(args);
}
}
我的UtilsClass：
package com.certeduc.controller;
import java.io.IOException;
import javafx.event.Event;
import javafx.fxml.FXMLLoader;
import javafx.geometry.BoundingBox;
import javafx.geometry.Bounds;
import javafx.geometry.Orientation;
import javafx.geometry.Rectangle2D;
import javafx.scene.Node;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.stage.Screen;
import javafx.stage.Stage;
public class Utils {
private static Bounds getPrefBounds(Node node) {
double prefWidth;
double prefheight;
Orientation bias = node.getContentBias();
if (bias == Orientation.HORIZONTAL) {
prefWidth = node.prefWidth(-1);
prefheight = node.prefheight(prefWidth);
} else if (bias == Orientation.VERTICAL) {
prefheight = node.prefheight(-1);
prefWidth = node.prefWidth(prefheight);
} else {
prefWidth = node.prefWidth(-1);
prefheight = node.prefheight(-1);
}
return new BoundingBox(0,prefWidth,prefheight);
}
public static void setwindowMinimumSize(Stage stage,Scene scene)
{
Node root = scene.getRoot();
Bounds rootBounds = root.getBoundsInLocal();
double deltaW = stage.getWidth() - rootBounds.getWidth();
double deltaH = stage.getHeight() - rootBounds.getHeight();
Bounds prefBounds = getPrefBounds(root);
stage.setMinWidth(prefBounds.getWidth() + deltaW);
stage.setMinHeight(prefBounds.getHeight() + deltaH);
}
public static void centerOnScreen(Stage stage) {
Rectangle2D screenBounds = Screen.getPrimary().getVisualBounds();
stage.setX((screenBounds.getWidth() - stage.getWidth()) / 2);
stage.setY((screenBounds.getHeight() - stage.getHeight()) / 2);
}
public static Stage getwindow(Event event) {
return (Stage) ((Node) event.getSource()).getScene().getwindow();
}
public static void switchWindow(Event event,String targetFxmlName) throws IOException {
//Todo fix the bug which makes the fxmls this class (Error: Location is required at line 63)
Parent root = FXMLLoader.load(Utils.class.getResource("../fxml/" + targetFxmlName + ".fxml")); // THE ERROR IS HERE,and before modularize my project,this line was working pretty fine
Scene scene = new Scene(root);
Stage stage = Utils.getwindow(event);
stage.setScene(scene);
centerOnScreen(stage);
stage.show();
setwindowMinimumSize(stage,scene);
}
}
我尝试了Utils.class.getResources（“”），但只能访问到（“ ../com/certeduc/controller”），之后才尝试使用Utils.class.getResources（“ ../ fmxl / fxmlName.fxml“），但即使将fxml处理到控制器文件夹我也无法访问
[INFO] Scanning for projects...
[INFO]
[INFO] -----------------------< com.certeduc:signerapp >-----------------------
[INFO] Building signerapp 1.0-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ signerapp ---
[INFO] Deleting /home/arantesandre97/Developer/certeducSignerApp/target
[INFO]
[INFO] --- javafx-maven-plugin:0.0.3:run (default-cli) @ signerapp ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] copying 8 resources
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 8 source files to /home/arantesandre97/Developer/certeducSignerApp/target/classes
Exception in thread "JavaFX Application Thread" java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
at javafx.fxml/javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1787)
at javafx.fxml/javafx.fxml.FXMLLoader$ControllerMethodEventHandler.handle(FXMLLoader.java:1670)
at javafx.base/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
at javafx.base/com.sun.javafx.event.CompositeEventdispatcher.dispatchBubblingEvent(CompositeEventdispatcher.java:59)
at javafx.base/com.sun.javafx.event.BasicEventdispatcher.dispatchEvent(BasicEventdispatcher.java:58)
at javafx.base/com.sun.javafx.event.EventdispatchChainImpl.dispatchEvent(EventdispatchChainImpl.java:114)
at javafx.base/com.sun.javafx.event.BasicEventdispatcher.dispatchEvent(BasicEventdispatcher.java:56)
at javafx.base/com.sun.javafx.event.EventdispatchChainImpl.dispatchEvent(EventdispatchChainImpl.java:114)
at javafx.base/com.sun.javafx.event.BasicEventdispatcher.dispatchEvent(BasicEventdispatcher.java:56)
at javafx.base/com.sun.javafx.event.EventdispatchChainImpl.dispatchEvent(EventdispatchChainImpl.java:114)
at javafx.base/com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
at javafx.base/com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:49)
at javafx.base/javafx.event.Event.fireEvent(Event.java:198)
at javafx.graphics/javafx.scene.Node.fireEvent(Node.java:8890)
at javafx.controls/javafx.scene.control.Button.fire(Button.java:203)
at javafx.controls/com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(ButtonBehavior.java:206)
at javafx.controls/com.sun.javafx.scene.control.inputmap.InputMap.handle(InputMap.java:274)
at javafx.base/com.sun.javafx.event.CompositeEventHandler$normalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:218)
at javafx.base/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80)
at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
at javafx.base/com.sun.javafx.event.CompositeEventdispatcher.dispatchBubblingEvent(CompositeEventdispatcher.java:59)
at javafx.base/com.sun.javafx.event.BasicEventdispatcher.dispatchEvent(BasicEventdispatcher.java:58)
at javafx.base/com.sun.javafx.event.EventdispatchChainImpl.dispatchEvent(EventdispatchChainImpl.java:114)
at javafx.base/com.sun.javafx.event.BasicEventdispatcher.dispatchEvent(BasicEventdispatcher.java:56)
at javafx.base/com.sun.javafx.event.EventdispatchChainImpl.dispatchEvent(EventdispatchChainImpl.java:114)
at javafx.base/com.sun.javafx.event.BasicEventdispatcher.dispatchEvent(BasicEventdispatcher.java:56)
at javafx.base/com.sun.javafx.event.EventdispatchChainImpl.dispatchEvent(EventdispatchChainImpl.java:114)
at javafx.base/com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
at javafx.base/com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
at javafx.base/javafx.event.Event.fireEvent(Event.java:198)
at javafx.graphics/javafx.scene.Scene$MouseHandler.process(Scene.java:3862)
at javafx.graphics/javafx.scene.Scene.processMouseEvent(Scene.java:1849)
at javafx.graphics/javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2590)
at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:409)
at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:299)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$2(GlassViewEventHandler.java:447)
at javafx.graphics/com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:412)
at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:446)
at javafx.graphics/com.sun.glass.ui.View.handleMouseEvent(View.java:556)
at javafx.graphics/com.sun.glass.ui.View.notifyMouse(View.java:942)
at javafx.graphics/com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method)
at javafx.graphics/com.sun.glass.ui.gtk.GtkApplication.lambda$runLoop$11(GtkApplication.java:277)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.lang.reflect.InvocationTargetException
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at com.sun.javafx.reflect.Trampoline.invoke(MethodUtil.java:76)
at jdk.internal.reflect.GeneratedMethodAccessor2.invoke(UnkNown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at javafx.base/com.sun.javafx.reflect.MethodUtil.invoke(MethodUtil.java:273)
at javafx.fxml/com.sun.javafx.fxml.MethodHelper.invoke(MethodHelper.java:83)
at javafx.fxml/javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1782)
... 46 more
Caused by: java.lang.NullPointerException: Location is required.
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3230)
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 [email protected]/com.certeduc.controller.Utils.switchWindow(Utils.java:63)
at [email protected]/com.certeduc.controller.TabMenuController.exitApp(TabMenuController.java:77)
... 57 more
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 9.408 s
[INFO] Finished at: 2020-11-09T18:20:33-03:00
[INFO] ------------------------------------------------------------------------
解决方法
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