【发布时间】:2017-11-18 13:55:50
【问题描述】:
我有一个 JavaFx 项目,其中包含 FXML 文件及其控制器和主类
该程序在 IDE“IntelliJ”上完美运行 但是当我尝试制作一个工件并构建它时,jar 文件就不会运行“当然安装了 JRE”
我尝试了很多方法来构建工件,那么有没有特定的方法来构建包含 FXML 文件的 jar 文件?
堆栈跟踪异常
Exception in Application start method
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:389)
at com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:328)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at sun.launcher.LauncherHelper$FXHelper.main(Unknown Source)
Caused by: java.lang.RuntimeException: Exception in Application start method
at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:917)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$155(LauncherImpl.java:182)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NullPointerException: Location is required.
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3207)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3175)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3148)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3124)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3104)
at javafx.fxml.FXMLLoader.load(FXMLLoader.java:3097)
at sample.Main.start(Main.java:20)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$162(LauncherImpl.java:863)
at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$175(PlatformImpl.java:326)
at com.sun.javafx.application.PlatformImpl.lambda$null$173(PlatformImpl.java:295)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$174(PlatformImpl.java:294)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$148(WinApplication.java:191)
... 1 more
Exception running application sample.Main
主类包含这个“FXML 加载器”
public class Main extends Application {
@Override
public void start(Stage primaryStage) {
Parent root = null;
try {
root = FXMLLoader.load(getClass().getResource("/Sample/MainLayout.fxml"));
primaryStage.setTitle("Estimated Download Time");
primaryStage.setScene(new Scene(root, 764, 600));
primaryStage.getIcons().add(new Image(getClass().getResourceAsStream("Logo.png")));
primaryStage.resizableProperty().setValue(Boolean.FALSE);
primaryStage.show();
} catch (IOException e) {
e.printStackTrace();
}
}
public static void main(String[] args) {launch(args);}
}
【问题讨论】:
-
"jar 文件无法运行"。实际发生了什么?你有例外吗?如果没有,您是否尝试过从命令行运行 jar 文件以查看它是否以这种方式生成堆栈跟踪?
-
我实际上在应用程序启动方法中遇到 java.lang.reflect.InvocationTargetException 异常,但程序在 IDE 上完美运行!
-
所以在问题中发布完整的堆栈跟踪。可能是FXML文件的路径不正确,或者FXML文件没有部署到jar文件中。
-
我更新了问题并添加了 StackTrace 异常,谢谢!
-
你不能把它作为文本发布吗?我看不懂。
标签: java intellij-idea javafx jar fxml