我在弄清楚为什么我要用JFX FXML加载器加载的页面为何无法加载时遇到问题。 关于我的FXML加载类，我的Java代码符合标准，但是当我执行该代码时，当我单击“更多详细信息”按钮时，“更多详细信息”页面不会加载并显示...这是加载的代码段“更多详细信息”页面...
// Now set up the stage and place the "post_details_update" on it.
Stage unilink_home_stage = (Stage) btnl_posting_more_details.getScene().getWindow();
unilink_home_stage.close();
// This closes the Login dialog
// now call the post_details_update.fxml
try {
//Parent post_details = FXMLLoader.load( getclass().getResource("/unilink_home/post_details/post_details_update.fxml"));
Parent post_details = FXMLLoader.load( getclass().getResource("/view/unilink_home/post_details/post_details_update.fxml"));
// Note: the path is not relative to the package that this file is in
// but the CLAsspATH from the src/
Stage post_details_stage = new Stage();
post_details_stage.setTitle("Welcome to UniLink");
post_details_stage.setScene(new Scene(post_details));
post_details_stage.show();
} //close the try block
catch(Exception e)
{
//System.out.print(e);
//e.printStackTrace();
System.out.println( e.getMessage() );
}// close the catch block
文件夹结构为...
并且FXML页面是...。“ post_details_update.fxml”：
<?import javafx.geometry.Insets?>
<?import javafx.scene.control.Button?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.control.ListView?>
<?import javafx.scene.control.ToolBar?>
<?import javafx.scene.image.Image?>
<?import javafx.scene.image.ImageView?>
<?import javafx.scene.layout.AnchorPane?>
<?import javafx.scene.layout.ColumnConstraints?>
<?import javafx.scene.layout.GridPane?>
<?import javafx.scene.layout.RowConstraints?>
<?import javafx.scene.layout.VBox?>
<AnchorPane
fx:id="post_details"
xmlns:fx="http://javafx.com/fxml/1"
xmlns="http://javafx.com/javafx/11.0.1"
fx:controller="controller/unilink_home/post/details/unilink_home_post_detailsController"
>
<children>
<VBox prefHeight="401.0" prefWidth="850.0">
<children>
<ToolBar prefHeight="40.0" prefWidth="850.0">
<items>
<Button mnemonicParsing="false" text="Back to Main Window" />
<Label text="Review Post Details">
<padding>
<Insets left="250.0" />
</padding>
</Label>
</items>
</ToolBar>
<GridPane prefHeight="183.0" prefWidth="849.0">
<columnConstraints>
<ColumnConstraints hgrow="SOMETIMES" maxWidth="474.0" minWidth="10.0" prefWidth="215.0" />
<ColumnConstraints hgrow="SOMETIMES" maxWidth="541.0" minWidth="10.0" prefWidth="101.0" />
<ColumnConstraints hgrow="SOMETIMES" maxWidth="541.0" minWidth="10.0" prefWidth="534.0" />
</columnConstraints>
<rowConstraints>
<RowConstraints maxHeight="144.0" minHeight="10.0" prefHeight="144.0" vgrow="SOMETIMES" />
<RowConstraints maxHeight="71.0" minHeight="10.0" prefHeight="39.0" vgrow="SOMETIMES" />
</rowConstraints>
<children>
<ImageView fitHeight="135.0" fitWidth="222.0" pickOnBounds="true" preserveRatio="true">
<GridPane.margin>
<Insets left="50.0" />
</GridPane.margin>
<image>
<Image url="@../../../../images/under_construction.png" />
</image>
</ImageView>
<GridPane prefHeight="131.0" prefWidth="277.0" GridPane.columnIndex="1">
<columnConstraints>
<ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />
</columnConstraints>
<rowConstraints>
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
</rowConstraints>
<children>
<Label text="Post ID:" />
<Label layoutX="10.0" layoutY="25.0" text="Title:" GridPane.rowIndex="1" />
<Label layoutX="10.0" layoutY="72.0" text="Description:" GridPane.rowIndex="2" />
<Label layoutX="10.0" layoutY="89.0" text="Creator:" GridPane.rowIndex="3" />
<Label layoutX="10.0" layoutY="99.0" text="Date Created:" GridPane.rowIndex="4" />
<Label layoutX="10.0" layoutY="105.0" text="Status:" GridPane.rowIndex="5" />
</children>
</GridPane>
<GridPane layoutX="225.0" layoutY="10.0" prefHeight="131.0" prefWidth="277.0" GridPane.columnIndex="2">
<columnConstraints>
<ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />
</columnConstraints>
<rowConstraints>
<RowConstraints maxHeight="47.0" minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints maxHeight="46.0" minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints maxHeight="46.0" minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
</rowConstraints>
</GridPane>
<Button mnemonicParsing="false" text="Upload Image" GridPane.rowIndex="1">
<GridPane.margin>
<Insets left="70.0" />
</GridPane.margin>
</Button>
<Button mnemonicParsing="false" text="Close Post" GridPane.columnIndex="2" GridPane.rowIndex="1">
<GridPane.margin>
<Insets left="20.0" />
</GridPane.margin>
</Button>
<Button mnemonicParsing="false" text="Delete Post" GridPane.columnIndex="2" GridPane.rowIndex="1">
<GridPane.margin>
<Insets left="180.0" />
</GridPane.margin>
</Button>
<Button mnemonicParsing="false" text="Save" GridPane.columnIndex="2" GridPane.rowIndex="1">
<GridPane.margin>
<Insets left="350.0" />
</GridPane.margin>
</Button>
</children>
</GridPane>
<ListView prefHeight="200.0" prefWidth="200.0" />
</children>
</VBox>
</children>
</AnchorPane>
“ unilink_home_post_detailsController.java”在此阶段只是一个外壳...
package controller.unilink_home.post.details;
import javafx.fxml.FXML;
import javafx.scene.layout.AnchorPane;
import model.connectionTest;
import javafx.scene.control.MenuItem;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.ChoiceBox;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
//import javafx.event.Event;
//Import the classes for database query
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import model.table_setup_view_postings;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.fxml.Initializable;
import javafx.scene.control.ListCell;
import javafx.scene.control.ListView;
import javafx.util.Callback;
import java.net.URL;
import java.util.ResourceBundle;
import model.posting;
public class unilink_home_post_detailsController implements Initializable
{
//database connection related variables,private String query;
//This is the SQL query string
PreparedStatement ps;
//PreparedStatement ps2;
// This is the prepared statement for the SQL query
private Connection db_connect;
// this is the database connection string for SQL query results
final String DB_NAME = "testDB";
// This is the database name
@FXML // fx:id="post_details"
private AnchorPane post_details; // Value injected by FXMLLoader
//===================================================================================================================
/*
* This method is the class constructor and sets up the controller.
*/
public void unilink_home_post_detailsController()
{
}// close public void unilink_home_post_detailsController()
//===================================================================================================================
/*
* This method will initialiise the UI
*/
//@FXML
@Override
public void initialize(URL location,ResourceBundle resources)
{
}// close public void initialize(URL location,ResourceBundle resources)
}// close public class unilink_home_post_detailsController
与此： 1.代码将编译。 2.当我单击按钮“更多详细信息” ...时，什么都没有发生，而且我也对如何调试它感到挑战，因为在带有Java JFX的eclipse中，移入/移入按钮为灰色，并且未显示变量，因此我可以看到这些易损件的状态吗？
任何人都可以帮忙，因为我对JFX有点陌生，而且我读到FXML加载程序可能很精巧...
此致。