Question

我面临的问题是这段代码可以在intellij IDE中完美运行，但是在创建jar一段时间后，我们在将fxml文件加载到窗格中时遇到了加载异常：

javafx.fxml.LoadException:/../../..Toolbar.fxml

或

NoClassDefFound

许多次都可以正常工作，没有任何例外。我们无法确定它什么时候起作用，什么时候不起作用。当我们人为减少虚拟机的RAM时，它的发生频率更高。所以

为什么只有有时我们会获得例外？其他人也遇到过类似的事情吗？
是因为加载fxml需要花费时间（因为它实际上是动态的，因为它基于数据库，所以它会更改）？

private void topView(){
            try {
                FXMLLoader loader = new FXMLLoader();
                loader.setLocation(this.getClass().getResource("View/Toolbar/ToolBar.fxml"));
                AnchorPane pane = loader.load();
                Methods.setBackGroundColor(pane);
                rootPane.setTop(pane);
                variablesObj.setToolbarObj(loader.getController());
            } catch (IOException e) {
                logger.Error("Error", "Could not find file", e + "       Error");
            }
    }

<?xml version="1.0" encoding="UTF-8"?>

<?import com.jfoenix.controls.*?>
<?import javafx.sc lnene.control.Label?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.shape.*?>
<AnchorPane fx:id="MainPaneTool" prefHeight="80.0" prefWidth="722.0" style="-fx-background-color: #ffffff;" xmlns="http://javafx.com/javafx/8.0.162" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.tetcos.NetSim.Simulation.View.Toolbar.ToolBarController">
    <AnchorPane fx:id="parentPane" layoutY="25.0" prefHeight="80.0" prefWidth="200.0" />
    <HBox fx:id="hBox" layoutY="25.0" prefHeight="80.0" style="-fx-background-color: #ffffff;">
        <AnchorPane fx:id="dAnchorPane" prefHeight="80.0" prefWidth="80" />
        <AnchorPane fx:id="lAnchorPane" prefHeight="80.0" prefWidth="105.0">
            <Line endY="80.0" fill="#8d8686" layoutX="1.0" layoutY="5.0" opacity="0.2" AnchorPane.bottomAnchor="5.0" AnchorPane.leftAnchor="0.5" AnchorPane.rightAnchor="130.5" AnchorPane.topAnchor="5.0" />
            <JFXButton fx:id="MLButton" layoutY="0.0" prefHeight="10.0" prefWidth="130.0" ripplerFill="#777777" text="Adhoc Link" AnchorPane.leftAnchor="2" />
            <JFXButton fx:id="PLButton" layoutY="30.0" prefHeight="1.0" prefWidth="130.0" ripplerFill="#777777" text="Wired/Wireless" AnchorPane.leftAnchor="2" />
            <Label fx:id="lable" alignment="CENTER" layoutY="58.0" prefHeight="14" prefWidth="130" text="Links" AnchorPane.bottomAnchor="3.0" AnchorPane.topAnchor="58.0" />
        </AnchorPane>

        <AnchorPane fx:id="appAnchorPane" prefHeight="80.0" prefWidth="98.0">
            <Line endY="80.0" layoutX="1.0" layoutY="5.0" opacity="0.2" AnchorPane.bottomAnchor="5.0" AnchorPane.topAnchor="5.0" />
            <JFXButton fx:id="appButton" contentDisplay="TOP" layoutX="5.0" layoutY="11.0" prefHeight="73.0" prefWidth="90.0" ripplerFill="#777777" text="Application" />
        </AnchorPane>
        <AnchorPane fx:id="tAnchorPane" prefHeight="80.0" prefWidth="120.0">
            <Line endY="80.0" layoutX="1.0" layoutY="5.0" opacity="0.2" AnchorPane.bottomAnchor="5.0" AnchorPane.topAnchor="5.0" />
            <JFXButton fx:id="dMetricsButton" prefHeight="10.0" prefWidth="120.0" ripplerFill="#777777" text="Plots" />
            <JFXButton fx:id="pTrakeButton" layoutY="28.0" prefHeight="1.0" prefWidth="120.0" ripplerFill="#777777" text="Packet Trace" />
            <JFXButton fx:id="eTrakeButton" layoutY="56.0" prefHeight="14.0" prefWidth="120.0" ripplerFill="#777777" text="Event Trace" />
        </AnchorPane>
        <AnchorPane prefHeight="80.0" prefWidth="80.0">
            <Line endY="80.0" layoutX="1.0" layoutY="5.0" opacity="0.2" AnchorPane.bottomAnchor="5.0" AnchorPane.topAnchor="5.0" />
            <JFXButton fx:id="runButton" contentDisplay="TOP" layoutX="5.0" layoutY="11.0" prefHeight="73.0" prefWidth="73.0" ripplerFill="#777777" text="Run" />
        </AnchorPane>
        <AnchorPane fx:id="viewAnchorPane" prefHeight="80.0" prefWidth="140.0">
            <Line endY="80.0" layoutX="1.0" layoutY="5.0" opacity="0.2" AnchorPane.bottomAnchor="5.0" AnchorPane.topAnchor="5.0" />
            <JFXButton fx:id="viewAniButton" layoutX="2.0" prefHeight="17.0" prefWidth="140.0" ripplerFill="#777777" text="View Animation" />
            <JFXButton fx:id="viewResultsButton" layoutX="2.0" layoutY="28.0" prefHeight="1.0" prefWidth="140.0" ripplerFill="#777777" text="View Results" />
            <JFXButton fx:id="viewInfoButton" layoutX="3.0" layoutY="56.0" prefHeight="16.0" prefWidth="140.0" ripplerFill="#777777" text="Display Settings" />
        </AnchorPane>
    </HBox>
    <AnchorPane fx:id="menuPane" prefHeight="25.0" prefWidth="200.0" style="-fx-background-color: #ffffff;" />
    <Line fx:id="menubarLine" endX="100.0" endY="25.0" startY="25.0" strokeWidth="0.15" />
</AnchorPane>

public class ToolBarController {

    @FXML
    private JFXButton PLButton;

    @FXML
    private JFXButton MLButton;

    @FXML
    private JFXButton appButton;

    @FXML
    private JFXButton dMetricsButton;

    @FXML
    private JFXButton pTrakeButton;

    @FXML
    private JFXButton eTrakeButton;

    @FXML
    private JFXButton runButton;

    @FXML
    private JFXButton viewAniButton;

    @FXML
    private JFXButton viewResultsButton;

    @FXML
    private JFXButton viewInfoButton;


    @FXML
    private AnchorPane dAnchorPane;

    @FXML
    private AnchorPane parentPane;

    @FXML
    private AnchorPane lAnchorPane;

    @FXML
    private AnchorPane viewAnchorPane;

    @FXML
    private AnchorPane tAnchorPane;

    @FXML
    private AnchorPane appAnchorPane;

    @FXML
    private AnchorPane MainPaneTool;

    @FXML
    private HBox hBox;

    @FXML
    private AnchorPane menuPane;

    @FXML
    private Line menubarLine;

    @FXML
    private void initialize() {

        Menubar menubarObj = new Menubar();
        menubarObj.initializeMenu(menuPane);

        linkAnchorPane.getChildren().remove(P2PLinkButton);
        linkAnchorPane.getChildren().remove(M2MLinkButton);

        applicationAnchorPane.getChildren().remove(applicationButton);
        traceAnchorPane.getChildren().remove(packetTraceButton);
        traceAnchorPane.getChildren().remove(eventTraceButton);
        traceAnchorPane.getChildren().remove(dynamicMetricsButton);

        //Now adding sub anchor pane in dAnchorPane, lAnchorPane, viewInfoButton
        //based on database. I can't share that code.
    }

如何在Javafx中修复fxml文件（随机发生）的“ NoClassDefFoundError”？

0 个答案: