我在连接到 XML 文件的子报表时遇到问题。当我执行报表时,预览不显示子报表数据,但如果我单独执行子报表,它会正确显示数据。我究竟做错了什么?
数据文件:
<REPORTDATA>
<HEAD>
<NUMBER>1</NUMBER>
<DESC>BLA BLA</DESC>
<DATE>2012.01.01</DATE>
</HEAD>
<GRID1>
<line id="1">
<NUMBER>11</NUMBER>
<DESC>g11BLA BLA</DESC>
<DATE>2012.01.01</DATE>
</line>
<line id="2">
<NUMBER>12</NUMBER>
<DESC>g12BLA BLA</DESC>
<DATE>2012.01.01</DATE>
</line>
</GRID1>
<GRID2>
<line id="1">
<NUMBER>21</NUMBER>
<DESC>g21BLA BLA</DESC>
<DATE>2012.01.01</DATE>
</line>
<line id="2">
<NUMBER>22</NUMBER>
<DESC>g22BLA BLA</DESC>
<DATE>2012.01.01</DATE>
</line>
</GRID2>
报告:
<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="reporttest" language="groovy" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="6a9eed56-d1c3-46d8-9e16-4166c146b8a3">
<property name="ireport.zoom" value="1.0"/>
<property name="ireport.x" value="0"/>
<property name="ireport.y" value="0"/>
<parameter name="SUBREPORT_DIR" class="java.lang.String" isForPrompting="false">
<defaultValueExpression><![CDATA["C:\\Users\\A2O\\Desktop\\"]]></defaultValueExpression>
</parameter>
<queryString language="xPath">
<![CDATA[/REPORTDATA/HEAD]]>
</queryString>
<field name="NUMBER" class="java.lang.String">
<fieldDescription><![CDATA[NUMBER]]></fieldDescription>
</field>
<field name="DESC" class="java.lang.String">
<fieldDescription><![CDATA[DESC]]></fieldDescription>
</field>
<field name="DATE" class="java.lang.String">
<fieldDescription><![CDATA[DATE]]></fieldDescription>
</field>
<background>
<band splitType="Stretch"/>
</background>
<title>
<band height="79" splitType="Stretch">
<textField>
<reportElement uuid="bd7929b3-092d-44b9-b488-c0418fb57749" x="4" y="6" width="100" height="20"/>
<textElement/>
<textFieldExpression><![CDATA[$F{NUMBER}]]></textFieldExpression>
</textField>
<textField>
<reportElement uuid="de902808-67e8-4b08-bd0b-c1d735409843" x="6" y="32" width="100" height="20"/>
<textElement/>
<textFieldExpression><![CDATA[$F{DESC}]]></textFieldExpression>
</textField>
<textField>
<reportElement uuid="86d57bd0-01d3-4b1f-b9bb-0eb7cf2c19fc" x="5" y="56" width="100" height="20"/>
<textElement/>
<textFieldExpression><![CDATA[$F{DATE}]]></textFieldExpression>
</textField>
</band>
</title>
<pageHeader>
<band height="13" splitType="Stretch"/>
</pageHeader>
<columnHeader>
<band height="12" splitType="Stretch"/>
</columnHeader>
<detail>
<band height="26" splitType="Stretch">
<staticText>
<reportElement uuid="819f4027-8ad0-46b4-b07c-c80234fe8411" x="12" y="0" width="100" height="20"/>
<textElement/>
<text><![CDATA[Static text]]></text>
</staticText>
</band>
</detail>
<columnFooter>
<band height="11" splitType="Stretch"/>
</columnFooter>
<pageFooter>
<band height="9" splitType="Stretch"/>
</pageFooter>
<summary>
<band height="42" splitType="Stretch">
<subreport>
<reportElement uuid="4ab29d23-9ead-491e-8ca3-8f9790280026" x="0" y="0" width="555" height="42"/>
<connectionExpression><![CDATA[$P{REPORT_CONNECTION}]]></connectionExpression>
<subreportExpression><![CDATA[$P{SUBREPORT_DIR} + "reporttest_subreport1.jasper"]]></subreportExpression>
</subreport>
</band>
</summary>
子报告:
<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="reporttest_subreport1" language="groovy" pageWidth="555" pageHeight="802" columnWidth="555" leftMargin="0" rightMargin="0" topMargin="0" bottomMargin="0" uuid="ca109af7-4e08-405d-b43f-4062115c500e">
<property name="ireport.zoom" value="1.0"/>
<property name="ireport.x" value="0"/>
<property name="ireport.y" value="0"/>
<queryString language="xPath">
<![CDATA[/REPORTDATA/GRID1/line]]>
</queryString>
<field name="NUMBER" class="java.lang.String">
<fieldDescription><![CDATA[NUMBER]]></fieldDescription>
</field>
<field name="DESC" class="java.lang.String">
<fieldDescription><![CDATA[DESC]]></fieldDescription>
</field>
<field name="DATE" class="java.lang.String">
<fieldDescription><![CDATA[DATE]]></fieldDescription>
</field>
<background>
<band splitType="Stretch"/>
</background>
<title>
<band splitType="Stretch"/>
</title>
<pageHeader>
<band height="36" splitType="Stretch"/>
</pageHeader>
<columnHeader>
<band height="69" splitType="Stretch">
<staticText>
<reportElement uuid="867a24dd-6172-40ef-be33-f8e51fa21207" x="0" y="0" width="100" height="20"/>
<textElement/>
<text><![CDATA[Grid1 data:]]></text>
</staticText>
<staticText>
<reportElement uuid="0885dada-a149-4cb7-b82c-fdfa9847061d" x="32" y="49" width="100" height="20"/>
<textElement/>
<text><![CDATA[NUMBER]]></text>
</staticText>
<staticText>
<reportElement uuid="7261c001-6771-47dc-9749-5e6f64fb86df" x="159" y="49" width="100" height="20"/>
<textElement/>
<text><![CDATA[DESC]]></text>
</staticText>
<staticText>
<reportElement uuid="2b95c6fc-3fd9-4df1-89c6-5249173db3e1" x="287" y="49" width="100" height="20"/>
<textElement/>
<text><![CDATA[DATE]]></text>
</staticText>
</band>
</columnHeader>
<detail>
<band height="23" splitType="Stretch">
<textField>
<reportElement uuid="becea2ba-40fd-4208-8191-c7475293ed5b" x="32" y="1" width="100" height="20"/>
<textElement/>
<textFieldExpression><![CDATA[$F{NUMBER}]]></textFieldExpression>
</textField>
<textField>
<reportElement uuid="182efb3b-6a66-4634-be35-fe03e8a0cd45" x="159" y="0" width="100" height="20"/>
<textElement/>
<textFieldExpression><![CDATA[$F{DESC}]]></textFieldExpression>
</textField>
<textField>
<reportElement uuid="bdb70a35-b4e6-4857-96c5-f607ee59bc07" x="287" y="0" width="100" height="20"/>
<textElement/>
<textFieldExpression><![CDATA[$F{DATE}]]></textFieldExpression>
</textField>
</band>
</detail>
<columnFooter>
<band height="15" splitType="Stretch"/>
</columnFooter>
<pageFooter>
<band height="6" splitType="Stretch"/>
</pageFooter>
<summary>
<band height="7" splitType="Stretch"/>
</summary>