Question

我正在尝试使用JasperReports创建一个xls-report。为此，我使用JasperReports 5.5.0（和相同版本的iReport）和apache poi 3.9。

基础结构是带有子报表的主报表，此子报表还包含另一个子报表。为了更好地理解一些代码示例：

Masterreport：

<?xml version="1.0" encoding="UTF-8"?>
<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="report1" language="groovy" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="ada06392-98fc-4512-99d3-a4008c86ed40">
<property name="net.sf.jasperreports.export.xls.remove.empty.space.between.rows" value="true"/>
<property name="net.sf.jasperreports.export.xls.remove.empty.space.between.columns" value="true"/>
<property name="net.sf.jasperreports.export.xls.create.custom.palette" value="true"/>
<property name="net.sf.jasperreports.style.evaluation.time.enabled" value="true"/>
<property name="net.sf.jasperreports.export.xls.wrap.text" value="true"/>
<property name="net.sf.jasperreports.print.keep.full.text" value="true"/>
<property name="ireport.zoom" value="3.1384283767210035"/>
<property name="ireport.x" value="34"/>
<property name="ireport.y" value="0"/>
<parameter name="subreportDisLayer" class="net.sf.jasperreports.engine.JasperReport" isForPrompting="false"/>
<field name="nextLayerList" class="java.util.List"/>
<field name="field1" class="java.lang.String"/>
<field name="field2" class="java.lang.String"/>
<background>
    <band splitType="Stretch"/>
</background>
<columnHeader>
    <band height="42" splitType="Stretch"/>
</columnHeader>
<detail>
    <band height="13" splitType="Stretch">
        <subreport isUsingCache="true" runToBottom="true">
            <reportElement x="0" y="0" width="555" height="13" isPrintWhenDetailOverflows="true" uuid="222f19ef-c9f7-40a9-ae44-11ef6e15f1ad"/>
            <subreportParameter name="subsubreportLayer">
                <subreportParameterExpression><![CDATA[$P{subsubreportLayer}]]></subreportParameterExpression>
            </subreportParameter>
            <dataSourceExpression><![CDATA[new JRBeanCollectionDataSource($F{nextLayerList})]]></dataSourceExpression>
            <subreportExpression><![CDATA[$P{subreportLayer}]]></subreportExpression>
        </subreport>
        <textField isStretchWithOverflow="true" isBlankWhenNull="true">
            <reportElement stretchType="RelativeToTallestObject" mode="Opaque" x="40" y="0" width="30" height="13" isPrintWhenDetailOverflows="true" uuid="ab260763-72ff-47ff-ad53-dfedde447908"/>
            <box>
                <topPen lineWidth="0.5" lineColor="#000000"/>
                <leftPen lineWidth="0.5" lineColor="#000000"/>
                <bottomPen lineWidth="0.5" lineColor="#000000"/>
                <rightPen lineWidth="0.5" lineColor="#000000"/>
            </box>
            <textElement>
                <font size="8"/>
                <paragraph leftIndent="2" tabStopWidth="4"/>
            </textElement>
            <textFieldExpression><![CDATA[$F{field1}]]></textFieldExpression>
        </textField>
        <textField isStretchWithOverflow="true" isBlankWhenNull="true">
            <reportElement stretchType="RelativeToTallestObject" mode="Opaque" x="70" y="0" width="50" height="13" isPrintWhenDetailOverflows="true" uuid="c408ac05-ee11-4e49-9609-179429b76e20"/>
            <box>
                <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>
            <textElement>
                <font size="8"/>
                <paragraph leftIndent="2" tabStopWidth="4"/>
            </textElement>
            <textFieldExpression><![CDATA[$F{field2}]]></textFieldExpression>
        </textField>
    </band>
</detail>

子报告1：

<?xml version="1.0" encoding="UTF-8"?>
<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="report1" language="groovy" pageWidth="595" pageHeight="842" columnWidth="595" leftMargin="0" rightMargin="0" topMargin="0" bottomMargin="0" uuid="ada06392-98fc-4512-99d3-a4008c86ed40">
<property name="net.sf.jasperreports.export.xls.remove.empty.space.between.rows" value="true"/>
<property name="net.sf.jasperreports.export.xls.remove.empty.space.between.columns" value="true"/>
<property name="net.sf.jasperreports.export.xls.create.custom.palette" value="true"/>
<property name="net.sf.jasperreports.style.evaluation.time.enabled" value="true"/>
<property name="net.sf.jasperreports.export.xls.wrap.text" value="true"/>
<property name="net.sf.jasperreports.print.keep.full.text" value="true"/>
<property name="ireport.zoom" value="3.1384283767210035"/>
<property name="ireport.x" value="34"/>
<property name="ireport.y" value="0"/>
<parameter name="subsubreportLayer" class="net.sf.jasperreports.engine.JasperReport" isForPrompting="false"/>
<field name="nextLayerList" class="java.util.List"/>
<field name="field3" class="java.lang.String"/>
<background>
    <band splitType="Stretch"/>
</background>
<detail>
    <band height="13" splitType="Stretch">
        <subreport isUsingCache="true" >
            <reportElement x="0" y="0" width="555" height="13" isPrintWhenDetailOverflows="true" uuid="222f19ef-c9f7-40a9-ae44-11ef6e15f1ad"/>
            <dataSourceExpression><![CDATA[new JRBeanCollectionDataSource($F{nextLayerList})]]></dataSourceExpression>
            <subreportExpression><![CDATA[$P{subsubreportLayer}]]></subreportExpression>
        </subreport>
        <textField isStretchWithOverflow="true" isBlankWhenNull="true">
            <reportElement stretchType="RelativeToBandHeight" mode="Opaque" x="274" y="0" width="100" height="13" isPrintWhenDetailOverflows="true" uuid="7fae7678-55c7-4308-9977-f71e215b38c9"/>
            <box>
                <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>
            <textElement>
                <font size="8"/>
                <paragraph leftIndent="2" tabStopWidth="4"/>
            </textElement>
            <textFieldExpression><![CDATA[$F{field3}]]></textFieldExpression>
        </textField>
    </band>
</detail>

第二个子报告看起来和第一个子报告几乎相同。

我的问题是，如果主节点的行高大于子报表的整个波段高度，子报表将不会将其波段高度拉伸到主行高。我知道它必须只是一个简单的设置组合，但我找不到它。

Answer 1

正如预期的那样，它是拉伸选项的简单组合...... 主报表的元素不得以溢出延伸，但必须将 net.sf.jasperreports.print.keep.full.text 属性设置为 true 。第一个子报表遵循相同的规则，但第二个子报表的元素必须以溢出方式拉伸。

JasperReports Subreport Stretching

1 个答案: