如何在jasper报告中显示少于5行的数据 [英] how to display data less than 5 row in jasper reports
本文介绍了如何在jasper报告中显示少于5行的数据的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我创建了一个报告表。我已将其设置为每页显示5行数据。现在的问题是，当数据少于5行时，表格将不会出现。
I have created a report table. I have set it to display 5 rows of data per page. The problem now is when there are less than 5 rows of data the table will not appear.
我在每个部分都放了 $ V {REPORT_COUNT}％5 == 0 。
如何修改此公式，即使行数少于5行，也会显示数据行？
How can I modify this formula so that the data rows will display even though there are less than 5 rows?
推荐答案
很抱歉我之前没有回复，因为我在工作中忙碌了一天。在查看了报表设计之后，我发现分页符功能并不是您真正需要的功能。我刚刚将您所拥有的群组的群组表达式更改为： $ F {PARENT_NAME} +
（（$ V {REPORT_COUNT}％5 == 0）？1：2） 并将在新页面上启动参数设置为true。另外，我更改了图表数据。检查以下jrxml数据：
Sorry that I couldn't reply earlier, as I'd a busy day at work. After looking at your report design, I found that 'Page Break' functionality is not something that you really need. I just changed the Group Expression for the group that you have, to : $F{PARENT_NAME} + (($V{REPORT_COUNT} % 5 == 0) ? "1" : "2") and set the 'Start on new page' parameter to true. Also, I changed the Chart data. Check the below jrxml data:
<?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="ChartLineBless" language="groovy" pageWidth="842" pageHeight="595" orientation="Landscape" columnWidth="802" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20">
<property name="ireport.zoom" value="1.0"/>
<property name="ireport.x" value="0"/>
<property name="ireport.y" value="0"/>
<parameter name="P_YEAR" class="java.lang.String">
<defaultValueExpression><![CDATA[]]></defaultValueExpression>
</parameter>
<parameter name="P_AGENCY_CODE" class="java.lang.String">
<defaultValueExpression><![CDATA[]]></defaultValueExpression>
</parameter>
<parameter name="P_SECTOR_LOOK_CODE" class="java.lang.String">
<defaultValueExpression><![CDATA[]]></defaultValueExpression>
</parameter>
<field name="PARENT_NAME" class="java.lang.String"/>
<field name="PARENT_NAME_SECTOR" class="java.lang.String"/>
<field name="AGENCY_PARENT_CODE" class="java.lang.String"/>
<field name="AGENCY_CODE" class="java.lang.String"/>
<field name="AGENCY_NAME" class="java.lang.String"/>
<field name="YEAR" class="java.lang.String"/>
<field name="SECTOR_ID" class="java.lang.String"/>
<field name="SECTOR_NAME" class="java.lang.String"/>
<field name="DYEAR1" class="java.math.BigDecimal"/>
<field name="DYEAR2" class="java.math.BigDecimal"/>
<field name="DYEAR3" class="java.math.BigDecimal"/>
<field name="DYEAR4" class="java.math.BigDecimal"/>
<field name="DYEAR5" class="java.lang.String"/>
<field name="YR1" class="java.math.BigDecimal"/>
<field name="YR2" class="java.math.BigDecimal"/>
<field name="YR3" class="java.math.BigDecimal"/>
<field name="YR4" class="java.math.BigDecimal"/>
<field name="YR5" class="java.math.BigDecimal"/>
<variable name="YR1_1" class="java.math.BigDecimal" resetType="Group" resetGroup="agensi" calculation="Sum">
<variableExpression><![CDATA[$F{YR1}]]></variableExpression>
</variable>
<variable name="YR2_1" class="java.math.BigDecimal" resetType="Group" resetGroup="agensi" calculation="Sum">
<variableExpression><![CDATA[$F{YR2}]]></variableExpression>
</variable>
<variable name="YR3_1" class="java.math.BigDecimal" resetType="Group" resetGroup="agensi" calculation="Sum">
<variableExpression><![CDATA[$F{YR3}]]></variableExpression>
</variable>
<variable name="YR4_1" class="java.math.BigDecimal" resetType="Group" resetGroup="agensi" calculation="Sum">
<variableExpression><![CDATA[$F{YR4}]]></variableExpression>
</variable>
<variable name="YR5_1" class="java.math.BigDecimal" resetType="Group" resetGroup="agensi" calculation="Sum">
<variableExpression><![CDATA[$F{YR5}]]></variableExpression>
</variable>
<group name="agensi" isStartNewPage="true" minHeightToStartNewPage="550">
<groupExpression><![CDATA[$F{PARENT_NAME} +
(($V{REPORT_COUNT} % 5 == 0) ? "1" : "2")]]></groupExpression>
<groupHeader>
<band height="98">
<textField>
<reportElement x="332" y="84" width="85" height="14"/>
<box>
<pen lineWidth="0.5"/>
<topPen lineWidth="0.5"/>
<leftPen lineWidth="0.5"/>
<bottomPen lineWidth="0.5"/>
<rightPen lineWidth="0.5"/>
</box>
<textElement textAlignment="Center"/>
<textFieldExpression><![CDATA[$F{DYEAR2}]]></textFieldExpression>
</textField>
<textField>
<reportElement x="247" y="84" width="85" height="14"/>
<box>
<pen lineWidth="0.5"/>
<topPen lineWidth="0.5"/>
<leftPen lineWidth="0.5"/>
<bottomPen lineWidth="0.5"/>
<rightPen lineWidth="0.5"/>
</box>
<textElement textAlignment="Center"/>
<textFieldExpression><![CDATA[$F{DYEAR1}]]></textFieldExpression>
</textField>
<staticText>
<reportElement x="43" y="71" width="204" height="27"/>
<box>
<pen lineWidth="0.5"/>
<topPen lineWidth="0.5"/>
<leftPen lineWidth="0.5"/>
<bottomPen lineWidth="0.5"/>
<rightPen lineWidth="0.5"/>
</box>
<textElement textAlignment="Center" verticalAlignment="Middle"/>
<text><![CDATA[Agency Name]]></text>
</staticText>
<staticText>
<reportElement x="10" y="71" width="33" height="27"/>
<box>
<pen lineWidth="0.5"/>
<topPen lineWidth="0.5"/>
<leftPen lineWidth="0.5"/>
<bottomPen lineWidth="0.5"/>
<rightPen lineWidth="0.5"/>
</box>
<textElement textAlignment="Center" verticalAlignment="Middle"/>
<text><![CDATA[No.]]></text>
</staticText>
<textField>
<reportElement x="417" y="84" width="85" height="14"/>
<box>
<pen lineWidth="0.5"/>
<topPen lineWidth="0.5"/>
<leftPen lineWidth="0.5"/>
<bottomPen lineWidth="0.5"/>
<rightPen lineWidth="0.5"/>
</box>
<textElement textAlignment="Center"/>
<textFieldExpression><![CDATA[$F{DYEAR3}]]></textFieldExpression>
</textField>
<staticText>
<reportElement x="247" y="71" width="425" height="13"/>
<box>
<pen lineWidth="0.5"/>
<topPen lineWidth="0.5"/>
<leftPen lineWidth="0.5"/>
<bottomPen lineWidth="0.5"/>
<rightPen lineWidth="0.5"/>
</box>
<textElement textAlignment="Center"/>
<text><![CDATA[Year]]></text>
</staticText>
<staticText>
<reportElement x="672" y="71" width="85" height="27"/>
<box>
<pen lineWidth="0.5"/>
<topPen lineWidth="0.5"/>
<leftPen lineWidth="0.5"/>
<bottomPen lineWidth="0.5"/>
<rightPen lineWidth="0.5"/>
</box>
<textElement textAlignment="Center" verticalAlignment="Middle"/>
<text><![CDATA[Total]]></text>
</staticText>
<textField>
<reportElement x="587" y="84" width="85" height="14"/>
<box>
<pen lineWidth="0.5"/>
<topPen lineWidth="0.5"/>
<leftPen lineWidth="0.5"/>
<bottomPen lineWidth="0.5"/>
<rightPen lineWidth="0.5"/>
</box>
<textElement textAlignment="Center"/>
<textFieldExpression><![CDATA[$F{DYEAR5}]]></textFieldExpression>
</textField>
<textField>
<reportElement x="502" y="84" width="85" height="14"/>
<box>
<pen lineWidth="0.5"/>
<topPen lineWidth="0.5"/>
<leftPen lineWidth="0.5"/>
<bottomPen lineWidth="0.5"/>
<rightPen lineWidth="0.5"/>
</box>
<textElement textAlignment="Center"/>
<textFieldExpression><![CDATA[$F{DYEAR4}]]></textFieldExpression>
</textField>
<staticText>
<reportElement x="0" y="22" width="802" height="26"/>
<textElement textAlignment="Center" verticalAlignment="Middle"/>
<text><![CDATA[5 YEAR STATISTICS ON APPLICATION RECEIVED (BY ALL AGENCIES)]]></text>
</staticText>
</band>
</groupHeader>
<groupFooter>
<band height="208">
<printWhenExpression><![CDATA[$V{REPORT_COUNT} % 5 == 0]]></printWhenExpression>
<textField>
<reportElement x="672" y="0" width="85" height="20"/>
<box>
<pen lineWidth="0.5"/>
<topPen lineWidth="0.5"/>
<leftPen lineWidth="0.5"/>
<bottomPen lineWidth="0.5"/>
<rightPen lineWidth="0.5"/>
</box>
<textElement textAlignment="Center"/>
<textFieldExpression><![CDATA[new Integer($V{YR1_1}.intValue() + $V{YR2_1}.intValue()+
$V{YR3_1}.intValue()+ $V{YR4_1}.intValue())+ $V{YR5_1}.intValue()]]></textFieldExpression>
</textField>
<staticText>
<reportElement x="10" y="0" width="237" height="20"/>
<box>
<pen lineWidth="0.5"/>
<topPen lineWidth="0.5"/>
<leftPen lineWidth="0.5"/>
<bottomPen lineWidth="0.5"/>
<rightPen lineWidth="0.5"/>
</box>
<textElement textAlignment="Center"/>
<text><![CDATA[ Total]]></text>
</staticText>
<textField>
<reportElement x="587" y="0" width="85" height="20"/>
<box>
<pen lineWidth="0.5"/>
<topPen lineWidth="0.5"/>
<leftPen lineWidth="0.5"/>
<bottomPen lineWidth="0.5"/>
<rightPen lineWidth="0.5"/>
</box>
<textElement textAlignment="Center"/>
<textFieldExpression><![CDATA[$V{YR5_1}]]></textFieldExpression>
</textField>
<textField>
<reportElement x="502" y="0" width="85" height="20"/>
<box>
<pen lineWidth="0.5"/>
<topPen lineWidth="0.5"/>
<leftPen lineWidth="0.5"/>
<bottomPen lineWidth="0.5"/>
<rightPen lineWidth="0.5"/>
</box>
<textElement textAlignment="Center"/>
<textFieldExpression><![CDATA[$V{YR4_1}]]></textFieldExpression>
</textField>
<textField>
<reportElement x="417" y="0" width="85" height="20"/>
<box>
<pen lineWidth="0.5"/>
<topPen lineWidth="0.5"/>
<leftPen lineWidth="0.5"/>
<bottomPen lineWidth="0.5"/>
<rightPen lineWidth="0.5"/>
</box>
<textElement textAlignment="Center"/>
<textFieldExpression><![CDATA[$V{YR3_1}]]></textFieldExpression>
</textField>
<textField>
<reportElement x="332" y="0" width="85" height="20"/>
<box>
<pen lineWidth="0.5"/>
<topPen lineWidth="0.5"/>
<leftPen lineWidth="0.5"/>
<bottomPen lineWidth="0.5"/>
<rightPen lineWidth="0.5"/>
</box>
<textElement textAlignment="Center"/>
<textFieldExpression><![CDATA[$V{YR2_1}]]></textFieldExpression>
</textField>
<textField>
<reportElement x="247" y="0" width="85" height="20"/>
<box>
<pen lineWidth="0.5"/>
<topPen lineWidth="0.5"/>
<leftPen lineWidth="0.5"/>
<bottomPen lineWidth="0.5"/>
<rightPen lineWidth="0.5"/>
</box>
<textElement textAlignment="Center"/>
<textFieldExpression><![CDATA[$V{YR1_1}]]></textFieldExpression>
</textField>
<lineChart>
<chart>
<reportElement x="144" y="34" width="549" height="173"/>
<chartTitle/>
<chartSubtitle/>
<chartLegend/>
</chart>
<categoryDataset>
<dataset resetType="Page"/>
<categorySeries>
<seriesExpression><![CDATA["YEAR1"]]></seriesExpression>
<categoryExpression><![CDATA[$F{DYEAR1}]]></categoryExpression>
<valueExpression><![CDATA[$V{YR1_1}]]></valueExpression>
</categorySeries>
<categorySeries>
<seriesExpression><![CDATA["Year2"]]></seriesExpression>
<categoryExpression><![CDATA[$F{DYEAR2}]]></categoryExpression>
<valueExpression><![CDATA[$V{YR2_1}]]></valueExpression>
</categorySeries>
<categorySeries>
<seriesExpression><![CDATA["YEAR3"]]></seriesExpression>
<categoryExpression><![CDATA[$F{DYEAR3}]]></categoryExpression>
<valueExpression><![CDATA[$V{YR3_1}]]></valueExpression>
</categorySeries>
<categorySeries>
<seriesExpression><![CDATA["YEAR4"]]></seriesExpression>
<categoryExpression><![CDATA[$F{DYEAR4}]]></categoryExpression>
<valueExpression><![CDATA[$V{YR4_1}]]></valueExpression>
</categorySeries>
<categorySeries>
<seriesExpression><![CDATA["YEAR5"]]></seriesExpression>
<categoryExpression><![CDATA[$F{DYEAR5}]]></categoryExpression>
<valueExpression><![CDATA[$V{YR5_1}]]></valueExpression>
</categorySeries>
</categoryDataset>
<linePlot>
<plot/>
</linePlot>
</lineChart>
<break>
<reportElement x="0" y="206" width="802" height="1"/>
</break>
</band>
</groupFooter>
</group>
<background>
<band splitType="Stretch"/>
</background>
<detail>
<band height="20" splitType="Stretch">
<textField>
<reportElement x="43" y="0" width="204" height="20"/>
<box>
<pen lineWidth="0.5"/>
<topPen lineWidth="0.5"/>
<leftPen lineWidth="0.5"/>
<bottomPen lineWidth="0.5"/>
<rightPen lineWidth="0.5"/>
</box>
<textElement/>
<textFieldExpression><![CDATA[$F{PARENT_NAME_SECTOR}]]></textFieldExpression>
</textField>
<textField>
<reportElement x="247" y="0" width="85" height="20"/>
<box>
<pen lineWidth="0.5"/>
<topPen lineWidth="0.5"/>
<leftPen lineWidth="0.5"/>
<bottomPen lineWidth="0.5"/>
<rightPen lineWidth="0.5"/>
</box>
<textElement textAlignment="Center"/>
<textFieldExpression><![CDATA[$F{YR1}]]></textFieldExpression>
</textField>
<textField>
<reportElement x="332" y="0" width="85" height="20"/>
<box>
<pen lineWidth="0.5"/>
<topPen lineWidth="0.5"/>
<leftPen lineWidth="0.5"/>
<bottomPen lineWidth="0.5"/>
<rightPen lineWidth="0.5"/>
</box>
<textElement textAlignment="Center"/>
<textFieldExpression><![CDATA[$F{YR2}]]></textFieldExpression>
</textField>
<textField>
<reportElement x="417" y="0" width="85" height="20"/>
<box>
<pen lineWidth="0.5"/>
<topPen lineWidth="0.5"/>
<leftPen lineWidth="0.5"/>
<bottomPen lineWidth="0.5"/>
<rightPen lineWidth="0.5"/>
</box>
<textElement textAlignment="Center"/>
<textFieldExpression><![CDATA[$F{YR3}]]></textFieldExpression>
</textField>
<textField>
<reportElement x="502" y="0" width="85" height="20"/>
<box>
<pen lineWidth="0.5"/>
<topPen lineWidth="0.5"/>
<leftPen lineWidth="0.5"/>
<bottomPen lineWidth="0.5"/>
<rightPen lineWidth="0.5"/>
</box>
<textElement textAlignment="Center"/>
<textFieldExpression><![CDATA[$F{YR4}]]></textFieldExpression>
</textField>
<textField>
<reportElement x="587" y="0" width="85" height="20"/>
<box>
<pen lineWidth="0.5"/>
<topPen lineWidth="0.5"/>
<leftPen lineWidth="0.5"/>
<bottomPen lineWidth="0.5"/>
<rightPen lineWidth="0.5"/>
</box>
<textElement textAlignment="Center"/>
<textFieldExpression><![CDATA[$F{YR5}]]></textFieldExpression>
</textField>
<textField>
<reportElement x="10" y="0" width="33" height="20"/>
<box>
<pen lineWidth="0.5"/>
<topPen lineWidth="0.5"/>
<leftPen lineWidth="0.5"/>
<bottomPen lineWidth="0.5"/>
<rightPen lineWidth="0.5"/>
</box>
<textElement textAlignment="Center"/>
<textFieldExpression><![CDATA[$V{COLUMN_COUNT}]]></textFieldExpression>
</textField>
<textField>
<reportElement x="672" y="0" width="85" height="20"/>
<box>
<pen lineWidth="0.5"/>
<topPen lineWidth="0.5"/>
<leftPen lineWidth="0.5"/>
<bottomPen lineWidth="0.5"/>
<rightPen lineWidth="0.5"/>
</box>
<textElement textAlignment="Center"/>
<textFieldExpression><![CDATA[new Integer($F{YR1}.intValue() + $F{YR2}.intValue()+ $F{YR3}.intValue()+ $F{YR4}.intValue())+ $F{YR5}.intValue()]]></textFieldExpression>
</textField>
</band>
</detail>
<columnFooter>
<band height="23">
<textField evaluationTime="Report">
<reportElement x="445" y="3" width="40" height="20"/>
<textElement/>
<textFieldExpression><![CDATA[" " + $V{PAGE_NUMBER}]]></textFieldExpression>
</textField>
<textField>
<reportElement x="365" y="3" width="80" height="20"/>
<textElement textAlignment="Right"/>
<textFieldExpression><![CDATA["Page "+$V{PAGE_NUMBER}+" of"]]></textFieldExpression>
</textField>
</band>
</columnFooter>
</jasperReport>
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