javafx的创建过程中产生的问题

来源：互联网发布：整型数据的表示范围编辑：程序博客网时间：2024/06/07 07:49

javafx写主程序的时候提示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(Unknown Source)
   at com.sun.javafx.application.LauncherImpl.launchApplication(Unknown Source)
   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$FXHelper.main(Unknown Source)
Caused by: java.lang.RuntimeException: Exception in Application start method
   at com.sun.javafx.application.LauncherImpl.launchApplication1(Unknown Source)
   at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$155(Unknown Source)
   at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassCastException: javafx.scene.layout.AnchorPane cannot be cast to javafx.scene.layout.BorderPane
   at address.MainApp.initRootLayout(MainApp.java:29)
   at address.MainApp.start(MainApp.java:20)
   at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$162(Unknown Source)
   at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$175(Unknown Source)
   at com.sun.javafx.application.PlatformImpl.lambda$null$173(Unknown Source)
   at java.security.AccessController.doPrivileged(Native Method)
   at com.sun.javafx.application.PlatformImpl.lambda$runLater$174(Unknown Source)
   at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(Unknown Source)
   at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
   at com.sun.glass.ui.win.WinApplication.lambda$null$148(Unknown Source)
   ... 1 more

Exception running application address.MainApp

这个错误我开始以为是路径错误，修改多次路径

http://www.yiibai.com/javafx/main-programe.html

这是书写的时候的教程刚开始的时候

    FXMLLoader loader=new FXMLLoader();

       rootLayout=(BorderPane) loader.load(MainApp.class.getResource("view/test1.fxml"));

System.out.println(MainApp.class.getResource("view/test1.fxml"));

一直输出为空，这个让人非常郁闷，然后尝试着学习getResource

http://blog.csdn.net/cdkd123/article/details/8506867

这个是getresource的教程

我应该获得是bin下面的，执行的时候不会去找。java文件，最后会调用.class文件，

class 。getResource是获得class的父级目录，然后后面的参数跟的是要找的内容，最后返回一个url路径。

我的错误是t.InvocationTargetException AnchorPane cannot be cast to javafx.scene.layout.BorderPane

fxml中写的是anchorpanel，但是最后书写变成了boderpanel

0 0