Jasper 报告组件在 JavaFX Swing 节点中未正确呈现
2022-09-04 23:30:31
为了在JavaFX 11中创建Jasper Report,我使用的是动态报告。我正在Swing Node中加载报告,但只有当我将单击堆栈窗格区域并且仅当我将鼠标悬停在所有这些组件上时,Jasper报告才会出现。并且所有其他组件都可见。组件和报表内容不会立即加载,而不是在鼠标悬停时显示,并且在滚动到“堆栈窗格”上时显示报表。
由于这是Java 8中的错误,似乎已经解决,但在Java 11中,我也遇到了同样的问题。
更新
由于我没有得到任何回应,并且正如kleopatra所建议的那样,我已经创建了最小的可重现代码。请对此进行调查。
JavaFxJasperReportsDemo.java
package demo;
import java.util.ArrayList;
import java.util.List;
import javax.swing.SwingUtilities;
import javafx.application.Application;
import javafx.application.Platform;
import javafx.embed.swing.SwingNode;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.layout.AnchorPane;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;
import javafx.stage.WindowEvent;
import net.sf.dynamicreports.jasper.builder.JasperReportBuilder;
import net.sf.dynamicreports.report.builder.DynamicReports;
import net.sf.dynamicreports.report.builder.column.Columns;
import net.sf.dynamicreports.report.builder.component.Components;
import net.sf.dynamicreports.report.builder.datatype.DataTypes;
import net.sf.dynamicreports.report.constant.HorizontalTextAlignment;
import net.sf.dynamicreports.report.exception.DRException;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.swing.JRViewer;
public class JavaFxJasperReportsDemo extends Application{
@FXML
private StackPane stackPane;
public void start(Stage stage) throws Exception{
try{
System.out.println("Hello");
Parent root = FXMLLoader.load(getClass().getResource("/FXMLJavaFXJasperReportsDemo.fxml"));
Scene scene = new Scene(root);
stage.setScene(scene);
stage.setTitle("Java FX Demo");
stage.show();
stage.setOnCloseRequest(new EventHandler<WindowEvent>() {
public void handle(WindowEvent arg0) {
Platform.exit();
}
});
}
catch (Exception e){
throw e;
}
}
@FXML
public void loadReport(ActionEvent event) {
JasperReportBuilder report = DynamicReports.report();
List<DemoPOJO> lstDemoPOJOs=new ArrayList<DemoPOJO>();
DemoPOJO demoPOJO=new DemoPOJO();
demoPOJO.setName("ABC");
demoPOJO.setCity("Delhi");
lstDemoPOJOs.add(demoPOJO);
demoPOJO = new DemoPOJO();
demoPOJO.setName("XYZ");
demoPOJO.setCity("Agra");
lstDemoPOJOs.add(demoPOJO);
report
.columns(
Columns.columnRowNumberColumn("S No"),
Columns.column("Name", "name", DataTypes.stringType()),
Columns.column("Address", "city", DataTypes.stringType())
).title(
Components.text("Demo Java Fx Jasper Reports").
setHorizontalTextAlignment(HorizontalTextAlignment.CENTER))
.pageFooter(Components.pageXofY())
.setDataSource(lstDemoPOJOs);
try {
JasperPrint jasperPrintReport=report.toJasperPrint();
SwingNode swingNode = new SwingNode();
AnchorPane.setTopAnchor(swingNode,0.0);
AnchorPane.setBottomAnchor(swingNode,0.0);
AnchorPane.setLeftAnchor(swingNode,0.0);
AnchorPane.setRightAnchor(swingNode,0.0);
JRViewer jrViewer= new JRViewer(jasperPrintReport);
SwingUtilities.invokeLater(() ->swingNode.setContent(jrViewer)
);
stackPane.getChildren().add(swingNode);
} catch (DRException e) {
e.printStackTrace();
}
}
public static void main(String[] args){
System.out.println("Hello Main");
try{
launch(args);
}
catch (Exception e){
e.printStackTrace();
}
}
}
DemoPOJO.java
package demo;
public class DemoPOJO {
String name;
String city;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
}
FXMLJavaFXJasperReportsDemo.fxml
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.control.Button?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.layout.AnchorPane?>
<?import javafx.scene.layout.StackPane?>
<AnchorPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="561.0" prefWidth="745.0" xmlns="http://javafx.com/javafx/11.0.1" xmlns:fx="http://javafx.com/fxml/1" fx:controller="demo.JavaFxJasperReportsDemo">
<children>
<Label layoutX="345.0" layoutY="24.0" text="Java FX Demo Application" />
<StackPane fx:id="stackPane" layoutX="14.0" layoutY="120.0" prefHeight="392.0" prefWidth="722.0" />
<Button layoutX="62.0" layoutY="68.0" mnemonicParsing="false" onAction="#loadReport" text="Load Report" />
</children>
</AnchorPane>
我正在使用的依赖项是:-
<dependency>
<groupId>net.sourceforge.dynamicreports</groupId>
<artifactId>dynamicreports-core</artifactId>
<version>6.1.0</version>
</dependency>
<dependency>
<groupId>org.openjfx</groupId>
<artifactId>javafx-controls</artifactId>
<version>11</version>
</dependency>
<dependency>
<groupId>org.openjfx</groupId>
<artifactId>javafx-fxml</artifactId>
<version>11</version>
</dependency>
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.2.11</version>
</dependency>
<dependency>
<groupId>org.openjfx</groupId>
<artifactId>javafx-swing</artifactId>
<version>11-ea+24</version>
</dependency>
输出