替换FXML文件后为什么不运行JavaFx项目
[英]Why won't a JavaFx project run when an FXML file is replaced
问题描述
I've got a JavaFx project that I built using Netbeans and JavaFx Scene Builder. 
我有一个使用Netbeans和JavaFx Scene Builder构建的JavaFx项目。
There are 3 files: the Main Class file, the FXML file and the controller. 有3个文件：Main Class文件，FXML文件和控制器。
Now, the problem is that I'm trying to copy and paste an earlier GUI JXML file from a previous project, but when I do so, the project won't run. 现在，问题在于我正在尝试从先前的项目中复制和粘贴早期的GUI JXML文件，但是当我这样做时，该项目将无法运行。 Changing the URL to the controller doesn't help. 将URL更改为控制器无济于事。
Everything works perfectly until I do the copy-paste. 一切正常，直到我执行复制粘贴。
The files are: 这些文件是：
Sample.FXML -> The orriginal GUI
SampleController.java -> The Controller class
Home.FXML -> The FXML file whose structure is to be copied to orriginal Sample.FXML
Here are the files: 这些是文件：
Sample.FXML (before the copy) Sample.FXML （复制之前）
<?xml version="1.0" encoding="UTF-8"?>
<?import java.lang.*?>
<?import java.util.*?>
<?import javafx.scene.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<AnchorPane id="AnchorPane" prefHeight="200" prefWidth="320" xmlns:fx="http://javafx.com/fxml" fx:controller="wakiliproject.SampleController">
<children>
<Button layoutX="126" layoutY="90" text="Click Me!" onAction="#handleButtonAction" fx:id="button" />
<Label layoutX="126" layoutY="120" minHeight="16" minWidth="69" fx:id="label" />
</children>
</AnchorPane>
SampleController.java SampleController.java
import java.net.URL;
import java.util.ResourceBundle;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.Label;
public class SampleController implements Initializable {
@FXML
private Label label;
@FXML
private void handleButtonAction(ActionEvent event) {
System.out.println("You clicked me!");
label.setText("Hello World!");
}
@Override
public void initialize(URL url, ResourceBundle rb) {
// TODO
}
}
Home.FXML FXML文件
<?xml version="1.0" encoding="UTF-8"?>
<?import java.lang.*?>
<?import java.net.*?>
<?import java.util.*?>
<?import javafx.geometry.*?>
<?import javafx.scene.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<AnchorPane prefHeight="624.0" prefWidth="900.0" styleClass="AnchorPane" xmlns:fx="http://javafx.com/fxml" fx:controller="wakiliproject.SampleController">
<children>
<Pane id="wrapperPane" prefHeight="600.0" prefWidth="700.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
<children>
<Pane fx:id="top" layoutX="-1.0" prefWidth="879.0" styleClass="appNav">
<children>
<HBox id="HBox" alignment="CENTER" layoutX="12.0" layoutY="6.0" spacing="10.0">
<children>
<Label prefHeight="32.0" prefWidth="32.0" styleClass="titleBarHome" />
<Label prefHeight="32.0" prefWidth="32.0" styleClass="titleBarPublisher" />
<Label prefHeight="32.0" prefWidth="32.0" styleClass="titleBarTools" />
</children>
</HBox>
<HBox id="HBox" alignment="CENTER" layoutX="667.0" layoutY="9.0" prefHeight="32.0" prefWidth="197.9998779296875" spacing="5.0">
<children>
<TextField prefWidth="200.0" styleClass="searchTextField" />
</children>
</HBox>
</children>
</Pane>
<Pane id="leftNav" layoutX="14.0" layoutY="52.0" prefHeight="511.999977929685" prefWidth="652.0" styleClass="centerPane">
<children>
<VBox id="VBox" alignment="CENTER" layoutX="38.0" layoutY="21.0" spacing="5.0">
<children>
<Label styleClass="centerPaneNavLeft" text="Accounts" />
<Label styleClass="centerPaneNavLeft" text="Cases" />
<Label styleClass="centerPaneNavLeft" text="Callender" />
<Label styleClass="centerPaneNavLeft" text="Matters" />
</children>
</VBox>
<VBox alignment="CENTER" layoutX="7.0" layoutY="110.0" spacing="5.0" styleClass="leftVBoxProfile">
<children>
<Label styleClass="centerPaneNavLeft" text="Profile and settings" />
<Label styleClass="centerPaneNavLeft" text="Firm staff" />
<Label styleClass="centerPaneNavLeft" text="Firm Interns" />
<Label styleClass="centerPaneNavLeft" text="Affiliates Firms" />
</children>
</VBox>
<Pane id="contentPane" layoutX="126.0" layoutY="21.0" prefHeight="436.0" prefWidth="525.999977929685" styleClass="centerPaneCct">
<children>
<HBox id="HBox" alignment="CENTER" layoutX="14.0" spacing="10.0">
<children>
<Label minHeight="32.0" minWidth="32.0" styleClass="centerMail" />
</children>
</HBox>
<Label layoutX="253.0" layoutY="8.0" styleClass="centerNotes" text="NOTES" />
<Pane fx:id="homeContentDisplay" layoutY="32.0" prefHeight="404.0" prefWidth="526.0">
<children>
<VBox id="VBox" alignment="BASELINE_LEFT" layoutX="14.0" layoutY="15.0" prefWidth="498.0" spacing="5.0" styleClass="centerPaneCctHomeNotifierVWrapper">
<children>
<Label styleClass="centerPaneCctHomeNotifierTtl" text="Notifications" />
<Label styleClass="centerPaneCctHomeNotifierNone" text="none listed" />
</children>
</VBox>
<VBox id="VBox" alignment="BASELINE_LEFT" layoutX="14.0" layoutY="62.0" prefWidth="498.0" spacing="5.0" styleClass="centerPaneCctHomeNotifierVWrapper">
<children>
<Label fx:id="label" styleClass="centerPaneCctHomeNotifierTtl" text="Activities today" visible="false" />
<Label styleClass="centerPaneCctHomeNotifierNone" text="none listed" />
</children>
</VBox>
<HBox id="HBox" alignment="CENTER" layoutX="435.0" layoutY="342.0" spacing="5.0" styleClass="centerSocialTabsOnlineHWrapper">
<children>
<Label prefHeight="24.0" prefWidth="24.0" styleClass="centerSocialTabsOnline" />
<Label prefHeight="24.0" prefWidth="24.0" styleClass="centerSocialTabsBlogs" />
<Label prefHeight="24.0" prefWidth="24.0" styleClass="centerSocialTabsQA" />
</children>
</HBox>
<Label layoutX="14.0" layoutY="109.0" styleClass="centerPaneKIWI" text="KIWI" />
<TextField fx:id="KIWITextField" layoutX="14.0" layoutY="134.0" prefHeight="42.0" prefWidth="498.0" styleClass="HomeKIWI" />
<Label id="labelShows" fx:id="GoKIWI" alignment="CENTER" layoutX="421.0" layoutY="176.0" prefWidth="91.0" styleClass="centerPaneKIWIPost" text="Post KIWI" />
<Label layoutX="14.0" layoutY="202.0" prefWidth="498.0" styleClass="centerPaneKIWIPostStatus" text="No KIWIs posted yet" />
<Pane layoutY="315.0" prefHeight="89.0" prefWidth="435.0" styleClass="footerFilesPane">
<children>
<Label layoutX="14.0" layoutY="14.0" styleClass="footerFilingNone" text="No files from this firm attached to Wakili yet." />
<Label layoutX="14.0" layoutY="36.0" styleClass="footerFilingNew" text="Attach new file here" />
<Label layoutX="397.0" layoutY="30.0" prefHeight="24.0" prefWidth="24.0" styleClass="footerFilingHelp" />
</children>
</Pane>
<Label layoutX="57.0" layoutY="-32.0" minHeight="32.0" minWidth="32.0" styleClass="centerContacts" />
</children>
</Pane>
<Pane fx:id="page2ContentDisplay" layoutY="32.0" prefHeight="404.0" prefWidth="526.0" visible="false">
<children>
<Label layoutX="14.0" layoutY="14.0" onMouseClicked="#handleButtonActionShowHome" text="Page 2" />
</children>
</Pane>
</children>
</Pane>
<Pane layoutX="-5.0" layoutY="457.0" prefWidth="656.999977929685">
<children>
<HBox id="HBox" alignment="CENTER" layoutX="-6.0" layoutY="12.0" prefWidth="336.0" spacing="20.0">
<children>
<Label alignment="BOTTOM_CENTER" prefHeight="40.0" styleClass="footerDocuments" text="Documents" />
<Label alignment="BOTTOM_CENTER" prefHeight="40.0" styleClass="footerMasterTables" text="Master Tables" />
<Label alignment="BOTTOM_CENTER" prefHeight="40.0" styleClass="footerFiling" text="Modules" />
</children>
</HBox>
</children>
</Pane>
<Label alignment="CENTER" layoutX="10.0" layoutY="222.0" prefWidth="111.0" styleClass="leftPanePersonalArea" text="My personal area" />
<VBox id="VBox" alignment="CENTER" layoutX="40.0" layoutY="250.0" spacing="5.0">
<children>
<Label styleClass="leftPanePersonalAreaLinks" text="My profile" />
<Label styleClass="leftPanePersonalAreaLinks" text="Wakili forums" />
<Label styleClass="leftPanePersonalAreaLinks" text="Shared data" />
</children>
</VBox>
</children>
<padding>
<Insets right="10.0" />
</padding>
</Pane>
<VBox id="VBox" alignment="CENTER" layoutX="710.0" layoutY="63.0" spacing="5.0" styleClass="rightPaneBillTaxVBox">
<children>
<Label styleClass="centerPaneNavLeft" text="Billing and Tax" />
<Label styleClass="centerPaneNavLeft" text="Payment management" />
</children>
</VBox>
<Pane layoutX="666.0" layoutY="107.0" prefHeight="404.0" prefWidth="197.99990000000253" styleClass="rightPane">
<children>
<Label layoutX="14.0" layoutY="14.0" styleClass="firmTitle" text="Kirundi & co. Advocates" />
<Label layoutX="14.0" layoutY="43.0" prefHeight="32.0" styleClass="rightPaneBackUp" text="Back-up firm data online" />
<HBox id="HBox" alignment="CENTER" layoutX="12.0" layoutY="94.0" spacing="10.0" styleClass="rightPaneKSLLSKHWrapper">
<children>
<Label styleClass="rightPaneKSLLSK" text="LSK" />
<Label styleClass="rightPaneKSLLSK" text="KSL">
<HBox.margin>
<Insets />
</HBox.margin>
</Label>
</children>
</HBox>
<Label layoutX="14.0" layoutY="120.0" styleClass="rightPaneTheCourts" text="The courts" />
<VBox id="VBox" alignment="CENTER_LEFT" layoutX="66.0" layoutY="143.0" spacing="5.0">
<children>
<Label styleClass="rightPaneTheCourtsLinks" text="Announcements" />
<Label styleClass="rightPaneTheCourtsLinks" text="Popular cases" />
</children>
</VBox>
<Label layoutX="50.0" layoutY="75.0" styleClass="rightPaneFirmWebsite" text="Go to firm website" />
</children>
</Pane>
<Label layoutX="746.0" layoutY="511.0" styleClass="footerCAMPORey" text="CAMP - ORey" />
</children>
</Pane>
</children>
<padding>
<Insets bottom="10.0" left="10.0" right="10.0" top="10.0" />
</padding>
<stylesheets>
<URL value="@../Styling/Buttons.css" />
<URL value="@../Styling/Direction.css" />
<URL value="@../Styling/Labels.css" />
<URL value="@../Styling/Panes.css" />
<URL value="@../Styling/Text.css" />
<URL value="@../Styling/TextArea.css" />
</stylesheets>
</AnchorPane>
Sample.FXML (after copy-paste from Home.FXML) Sample.FXML （从Home.FXML复制粘贴之后）
*Identical to home above*
Update: 更新：
The error message: 错误信息：
Controller method "handleButtonActionShowHome" not found.
file:/D:/xampp/htdocs/Jive/WakiliProject/dist/WakiliProject.jar!/wakiliproject/Home.fxml:94
at javafx.fxml.FXMLLoader$Element.processEventHandlerAttributes(FXMLLoader.java:492)
at javafx.fxml.FXMLLoader$ValueElement.processEndElement(FXMLLoader.java:589)
at javafx.fxml.FXMLLoader.processEndElement(FXMLLoader.java:2430)
at javafx.fxml.FXMLLoader.load(FXMLLoader.java:2136)
at javafx.fxml.FXMLLoader.load(FXMLLoader.java:2028)
at javafx.fxml.FXMLLoader.load(FXMLLoader.java:2744)
at javafx.fxml.FXMLLoader.load(FXMLLoader.java:2723)
at javafx.fxml.FXMLLoader.load(FXMLLoader.java:2709)
at javafx.fxml.FXMLLoader.load(FXMLLoader.java:2696)
at javafx.fxml.FXMLLoader.load(FXMLLoader.java:2685)
at wakiliproject.WakiliProject.start(WakiliProject.java:13)
at com.sun.javafx.application.LauncherImpl$5.run(LauncherImpl.java:319)
at com.sun.javafx.application.PlatformImpl$5.run(PlatformImpl.java:215)
at com.sun.javafx.application.PlatformImpl$4$1.run(PlatformImpl.java:179)
at com.sun.javafx.application.PlatformImpl$4$1.run(PlatformImpl.java:176)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl$4.run(PlatformImpl.java:176)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.access$100(WinApplication.java:29)
at com.sun.glass.ui.win.WinApplication$3$1.run(WinApplication.java:73)
at java.lang.Thread.run(Thread.java:724)
Exception in Application start method
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.javafx.main.Main.launchApp(Main.java:642)
at com.javafx.main.Main.main(Main.java:805)
Caused by: java.lang.RuntimeException: Exception in Application start method
at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:403)
at com.sun.javafx.application.LauncherImpl.access$000(LauncherImpl.java:47)
at com.sun.javafx.application.LauncherImpl$1.run(LauncherImpl.java:115)
at java.lang.Thread.run(Thread.java:724)
Caused by: javafx.fxml.LoadException: Controller method "handleButtonActionShowHome" not found.
at javafx.fxml.FXMLLoader$Element.processEventHandlerAttributes(FXMLLoader.java:492)
at javafx.fxml.FXMLLoader$ValueElement.processEndElement(FXMLLoader.java:589)
at javafx.fxml.FXMLLoader.processEndElement(FXMLLoader.java:2430)
at javafx.fxml.FXMLLoader.load(FXMLLoader.java:2136)
at javafx.fxml.FXMLLoader.load(FXMLLoader.java:2028)
at javafx.fxml.FXMLLoader.load(FXMLLoader.java:2744)
at javafx.fxml.FXMLLoader.load(FXMLLoader.java:2723)
at javafx.fxml.FXMLLoader.load(FXMLLoader.java:2709)
at javafx.fxml.FXMLLoader.load(FXMLLoader.java:2696)
at javafx.fxml.FXMLLoader.load(FXMLLoader.java:2685)
at wakiliproject.WakiliProject.start(WakiliProject.java:13)
at com.sun.javafx.application.LauncherImpl$5.run(LauncherImpl.java:319)
at com.sun.javafx.application.PlatformImpl$5.run(PlatformImpl.java:215)
at com.sun.javafx.application.PlatformImpl$4$1.run(PlatformImpl.java:179)
at com.sun.javafx.application.PlatformImpl$4$1.run(PlatformImpl.java:176)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl$4.run(PlatformImpl.java:176)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.access$100(WinApplication.java:29)
at com.sun.glass.ui.win.WinApplication$3$1.run(WinApplication.java:73)
... 1 more
Java Result: 1
jfxsa-run:
BUILD SUCCESSFUL (total time: 52 seconds)
1 个解决方案
解决方案1
0 2013-09-19 09:38:56
A method called from the FXML file must be included somewhere in the controller class. 从FXML文件调用的方法必须包含在控制器类中的某个位置。
In this case the handleButtonActionShowHome() method had not been included in the SampleController class. 在这种情况下， SampleController类中未包含handleButtonActionShowHome()方法。
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