无法同时显示表内数据和表外数据

Question

我在 jasper studio 中制作了一个模板，该模板首先只有一个表格，我使用 JrBeanCollectionDataSource 使用 java 程序将数据传递到该表格，一切正常！但是当我尝试在报告中的表外添加字段时，它们保持为空，当我尝试将我的 JasperFillManager.fillReport(jasperReport,parameters,new JrEmptyDataSource()) 更改为 JasperFillManager.fillReport(jasperReport,parameters,itemsDataSource) 时，字段获取数据但现在表格不会获取任何数据并且根本不会出现 这是我的java程序

List<Invoice> listItems= new ArrayList<Invoice>();

        Invoice invoice=new Invoice();

        Invoice.setFromTo("HammamSousse/Kantaoui");
        Invoice.setTripPrice("9.265");

        listItems.add(invoice);

        JRBeanCollectionDataSource itemsJRBean=new JRBeanCollectionDataSource(listItems);
        Map<String,Object> parameters=new HashMap<String,Object>();
        parameters.put("Parameter1",itemsJRBean);
        InputStream input =new FileInputStream(new File("path\\vt.jrxml"));
        JasperDesign jasperDesign= JRXmlLoader.load(input);
        JasperReport jasperReport=JasperCompileManager.compileReport(jasperDesign);
        JasperPrint jasperPrint=JasperFillManager.fillReport(jasperReport,parameters,new JREmptyDataSource());
        JasperViewer.viewReport(jasperPrint);

这是我的 jrxml 文件

<?xml version="1.0" encoding="UTF-8"?>
<!-- Created with Jaspersoft Studio version 6.20.0.final using JasperReports Library version 6.20.0-2bc7ab61c56f459e8176eb05c7705e145cd400ad  -->
<jasperReport xmlns="http://jasperreports.sourceforge.net/jasperreports" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports http://jasperreports.sourceforge.net/xsd/jasperreport.xsd" name="vt" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="39704726-dd18-487b-ad98-129fcc839d94">
    <property name="com.jaspersoft.studio.data.defaultdataadapter" value="One Empty Record"/>
    <style name="Table_TH" mode="Opaque" backcolor="#F0F8FF">
        <box>
            <pen lineWidth="0.5" lineColor="#000000"/>
            <topPen lineWidth="0.5" lineColor="#000000"/>
            <leftPen lineWidth="0.5" lineColor="#000000"/>
            <bottomPen lineWidth="0.5" lineColor="#000000"/>
            <rightPen lineWidth="0.5" lineColor="#000000"/>
        </box>
    </style>
    <style name="Table_CH" mode="Opaque" backcolor="#BFE1FF">
        <box>
            <pen lineWidth="0.5" lineColor="#000000"/>
            <topPen lineWidth="0.5" lineColor="#000000"/>
            <leftPen lineWidth="0.5" lineColor="#000000"/>
            <bottomPen lineWidth="0.5" lineColor="#000000"/>
            <rightPen lineWidth="0.5" lineColor="#000000"/>
        </box>
    </style>
    <style name="Table_TD" mode="Opaque" backcolor="#FFFFFF">
        <box>
            <pen lineWidth="0.5" lineColor="#000000"/>
            <topPen lineWidth="0.5" lineColor="#000000"/>
            <leftPen lineWidth="0.5" lineColor="#000000"/>
            <bottomPen lineWidth="0.5" lineColor="#000000"/>
            <rightPen lineWidth="0.5" lineColor="#000000"/>
        </box>
    </style>
    <subDataset name="Dataset2" uuid="52282a42-91df-4c9f-b013-7c06e354af7d">
        <queryString>
            <![CDATA[]]>
        </queryString>
        <field name="fromTo" class="java.lang.String"/>
        <field name="tripPrice" class="java.lang.String"/>
    </subDataset>
    <parameter name="Parameter1" class="net.sf.jasperreports.engine.data.JRBeanCollectionDataSource"/>
    <queryString>
        <![CDATA[]]>
    </queryString>
    <background>
        <band splitType="Stretch"/>
    </background>
    <title>
        <band height="79" splitType="Stretch"/>
    </title>
    <pageHeader>
        <band height="35" splitType="Stretch"/>
    </pageHeader>
    <columnHeader>
        <band height="67" splitType="Stretch"/>
    </columnHeader>
    <detail>
        <band height="274" splitType="Stretch">
            <componentElement>
                <reportElement x="70" y="37" width="410" height="63" uuid="f6e0b09e-81be-47e7-a751-07cc0a469e45">
                    <property name="com.jaspersoft.studio.layout" value="com.jaspersoft.studio.editor.layout.VerticalRowLayout"/>
                    <property name="com.jaspersoft.studio.table.style.table_header" value="Table_TH"/>
                    <property name="com.jaspersoft.studio.table.style.column_header" value="Table_CH"/>
                    <property name="com.jaspersoft.studio.table.style.detail" value="Table_TD"/>
                </reportElement>
                <jr:table xmlns:jr="http://jasperreports.sourceforge.net/jasperreports/components" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports/components http://jasperreports.sourceforge.net/xsd/components.xsd">
                    <datasetRun subDataset="Dataset2" uuid="8b074442-09df-43e1-b7e2-bd0616ee1ce8">
                        <dataSourceExpression><![CDATA[$P{Parameter1}]]></dataSourceExpression>
                    </datasetRun>
                    <jr:column width="250" uuid="0e2ca4af-49fd-4103-9d22-d9f95a71ae6b">
                        <property name="com.jaspersoft.studio.components.table.model.column.name" value="Column1"/>
                        <jr:columnHeader style="Table_CH" height="30" rowSpan="1">
                            <staticText>
                                <reportElement x="0" y="0" width="250" height="30" uuid="03aa47f1-fbd2-46a8-8cd3-9a353ae46704"/>
                                <text><![CDATA[Static Text]]></text>
                            </staticText>
                        </jr:columnHeader>
                        <jr:detailCell style="Table_TD" height="30">
                            <textField>
                                <reportElement x="0" y="0" width="250" height="30" uuid="daea7ee2-0796-46f1-8520-a3aff839a4a0"/>
                                <textFieldExpression><![CDATA[$F{fromTo}]]></textFieldExpression>
                            </textField>
                        </jr:detailCell>
                    </jr:column>
                    <jr:column width="160" uuid="42babb80-7040-4118-8ebb-d617e52023bd">
                        <property name="com.jaspersoft.studio.components.table.model.column.name" value="Column2"/>
                        <jr:columnHeader style="Table_CH" height="30" rowSpan="1">
                            <staticText>
                                <reportElement x="0" y="0" width="160" height="30" uuid="96bf0ffe-5585-48bd-a409-1c52b391f2e4"/>
                                <text><![CDATA[Static Text]]></text>
                            </staticText>
                        </jr:columnHeader>
                        <jr:detailCell style="Table_TD" height="30">
                            <textField>
                                <reportElement x="0" y="0" width="160" height="30" uuid="caa8f50d-3a61-4cb6-b7db-5da2ec76fc5b"/>
                                <textFieldExpression><![CDATA[$F{tripPrice}]]></textFieldExpression>
                            </textField>
                        </jr:detailCell>
                    </jr:column>
                </jr:table>
            </componentElement>
        </band>
    </detail>
    <columnFooter>
        <band height="45" splitType="Stretch"/>
    </columnFooter>
    <pageFooter>
        <band height="54" splitType="Stretch"/>
    </pageFooter>
    <summary>
        <band height="42" splitType="Stretch"/>
    </summary>
</jasperReport>

我想将相同的数据传递给表外的字段和表本身，有什么解决方案吗？提前致谢