当我尝试为我的JavaFX应用程序添加图像转换时,它抛出了这个错误,我在Stackoverflow中查看了之前的问题和答案,但所有解决方案都只针对每个问题。我使用的是netbeans IDE
执行H:\ thirdf \ FinalF \ dist \ run2135548605 \ FinalF.jar 平台C:\ Program Files \ Java \ jdk1.8.0_101 \ jre / bin / java异常 应用程序启动方法java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 在 sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 在java.lang.reflect.Method.invoke(Method.java:498)at com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:389) 在 com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:328) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 在 sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 在java.lang.reflect.Method.invoke(Method.java:498)at sun.launcher.LauncherHelper $ FXHelper.main(LauncherHelper.java:767) 引起:java.lang.RuntimeException:Application start中的异常 方法 com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:917) 在 com.sun.javafx.application.LauncherImpl.lambda $ launchApplication $ 155(LauncherImpl.java:182) 在java.lang.Thread.run(Thread.java:745)引起: javafx.fxml.LoadException: 文件:/ H:/thirdf/FinalF/dist/run2135548605/FinalF.jar /finalf/FXMLDocument.fxml
在 javafx.fxml.FXMLLoader.constructLoadException(FXMLLoader.java:2601) 在javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2579)at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2441)at at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3214)at at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3175)at at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3148)at at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3124)at at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3104)at at javafx.fxml.FXMLLoader.load(FXMLLoader.java:3097)at at finalf.FinalF.start(FinalF.java:38)at com.sun.javafx.application.LauncherImpl.lambda $ launchApplication1 $ 162(LauncherImpl.java:863) 在 com.sun.javafx.application.PlatformImpl.lambda $ runAndWait $ 175(PlatformImpl.java:326) 在 com.sun.javafx.application.PlatformImpl.lambda为$ null $ 173(PlatformImpl.java:295) 在java.security.AccessController.doPrivileged(Native Method)at com.sun.javafx.application.PlatformImpl.lambda $ runLater $ 174(PlatformImpl.java:294) 在 com.sun.glass.ui.InvokeLaterDispatcher $ Future.run(InvokeLaterDispatcher.java:95) at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)at com.sun.glass.ui.win.WinApplication.lambda为$ null $ 148(WinApplication.java:191) ... 1更多引起:java.lang.NullPointerException:位置是 需要。在javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3207) 在javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3175)at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3148)at at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3124)at at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3104)at at javafx.fxml.FXMLLoader.load(FXMLLoader.java:3097)at at finalf.FXMLDocumentController.loadSplashScreen(FXMLDocumentController.java:55) 在 finalf.FXMLDocumentController.initialize(FXMLDocumentController.java:69) 在javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2548)... 17更多 异常运行应用程序finalf.FinalF Java结果:1
这是代码
SplashFXML.fxml
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.image.Image?>
<?import javafx.scene.image.ImageView?>
<?import javafx.scene.layout.StackPane?>
<StackPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="574.0" xmlns="http://javafx.com/javafx/8.0.101" xmlns:fx="http://javafx.com/fxml/1">
<children>
<ImageView fitHeight="450.0" fitWidth="560.0" pickOnBounds="true" preserveRatio="true">
<image>
<Image url="@loader.png" />
</image>
</ImageView>
</children>
</StackPane>
FXMLDocument.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.AnchorPane?>
<AnchorPane id="AnchorPane" prefHeight="462.0" prefWidth="473.0" xmlns:fx="http://javafx.com/fxml/1" xmlns="http://javafx.com/javafx/8.0.101" fx:controller="finalf.FXMLDocumentController">
<children>
<Button fx:id="button" layoutX="126.0" layoutY="225.0" onAction="#handleButtonAction" prefHeight="31.0" prefWidth="212.0" text="Play" />
<Label fx:id="label" layoutX="126" layoutY="120" minHeight="16" minWidth="69" />
<Button layoutX="126.0" layoutY="312.0" mnemonicParsing="false" prefHeight="31.0" prefWidth="212.0" text="Instructions" />
<TextField layoutX="126.0" layoutY="141.0" prefHeight="31.0" prefWidth="212.0" />
</children>
</AnchorPane>
FXMLDocumentController.java
package finalf;
import java.io.IOException;
import java.net.URL;
import java.util.ResourceBundle;
import java.util.logging.Level;
import java.util.logging.Logger;
import javafx.animation.FadeTransition;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.fxml.Initializable;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.layout.AnchorPane;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;
import javafx.util.Duration;
public class FXMLDocumentController implements Initializable {
@FXML
private Label label;
@FXML
private AnchorPane root;
@FXML
private void handleButtonAction(ActionEvent event) {
try{
FXMLLoader fxmlLoader = new FXMLLoader(getClass().getResource("Second_Window.fxml"));
Parent rootl = (Parent) fxmlLoader.load();
Stage stage = new Stage();
stage.setTitle("Foker");
stage.setScene(new Scene(rootl));
stage.show();
}catch(Exception e){
System.out.println("Can't load new window");
}
}
private void loadSplashScreen() throws IOException{
StackPane pane = FXMLLoader.load(getClass().getResource("/SplashFXML.fxml"));
root.getChildren().setAll(pane);
FadeTransition fadeIn = new FadeTransition(Duration.seconds(3),pane);
fadeIn.setFromValue(0);
fadeIn.setToValue(1);
fadeIn.setCycleCount(1);
fadeIn.play();
}
@Override
public void initialize(URL url, ResourceBundle rb) {
try {
loadSplashScreen();
} catch (IOException ex) {
Logger.getLogger(FXMLDocumentController.class.getName()).log(Level.SEVERE, null, ex);
}
}
}
FinalF.java
package finalf;
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.stage.Stage;
public class FinalF extends Application {
@FXML
private Button button;
@FXML
private Label label;
@FXML
void handleButtonAction(ActionEvent event){
}
@Override
public void start(Stage stage) throws Exception {
Parent root = FXMLLoader.load(getClass().getResource("FXMLDocument.fxml"));
Scene scene = new Scene(root);
stage.setScene(scene);
stage.show();
}
public static void main(String[] args) {
launch(args);
}
}
答案 0 :(得分:1)
让我们试试
loadSplashScreen()
方法中的第一行,这
StackPane pane = FXMLLoader.load(getClass().getResource("/SplashFXML.fxml"));
到
StackPane pane = FXMLLoader.load(getClass().getResource("SplashFXML.fxml"));
fx:id="root"
添加到AnchorPane
部分。让它改变这
AnchorPane id="AnchorPane" prefHeight="462.0" prefWidth="473.0" xmlns:fx="http://javafx.com/fxml/1" xmlns="http://javafx.com/javafx/8.0.101" fx:controller="finalf.FXMLDocumentController"
到
AnchorPane id="AnchorPane" fx:id="root" prefHeight="462.0" prefWidth="473.0" xmlns:fx="http://javafx.com/fxml/1" xmlns="http://javafx.com/javafx/8.0.101" fx:controller="finalf.FXMLDocumentController"
希望它在这两个步骤之后解决您的问题。