如何将分隔字符串转换为表格布局？

Question

CM45024,CM45025,CM45026

<field name="docIdNoGRN" class="java.lang.String">
    <fieldDescription><![CDATA[docIdNoGRN]]></fieldDescription>
</field>

<textField isStretchWithOverflow="true" isBlankWhenNull="true">
    <reportElement key="textField-53" x="311" y="1" width="88" height="15" uuid="2e040fd0-8fae-46e8-a845-fba421922992"/>
    <textElement textAlignment="Center">
    <font size="10"/>
    </textElement>
    <textFieldExpression><![CDATA[($F{docIdNoGRN} != null && $F{docIdNoGRN}.toString().length() > 0) ? $F{docIdNoGRN} : " "]]>  
    </textFieldExpression>
</textField>

Item No.    Item ID.
   1        CM45024,CM45025,CM45026

Item No.    Item ID.
   1        CM45024
   2        CM45025
   3        CM45026

Answer 1

假设$F{docIdNoGRN}包含字符串“cm45024,CM45025,cm45026”，这就是使用子报表可以实现的方法

>

生成将传递给子报表的数据源

<subreport>
 <reportElement x="163" y="15" width="200" height="100" uuid="9d6660e0-094e-4df3-9acb-74c031350b10"/>
 <dataSourceExpression><![CDATA[new net.sf.jasperreports.engine.data.JRBeanCollectionDataSource(java.util.Arrays.asList($F{docIdNoGRN}.split(",")))]]></dataSourceExpression>
 <subreportExpression><![CDATA[$P{SUBREPORT_DIR} + "your_subreport.jasper"]]></subreportExpression>
</subreport>

正如您所看到的，I拆分（“,”）字段字符串获得一个数组，该数组转换为列表，然后在JRBeanCollectionDataSource中传递

<?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="jTest_subreport2" language="groovy" pageWidth="555" pageHeight="802" columnWidth="555" leftMargin="0" rightMargin="0" topMargin="0" bottomMargin="0" uuid="23d7765f-250f-4632-94c6-bbd218db3d11">
    <field name="_THIS" class="java.lang.String"/>
    <detail>
        <band height="35" splitType="Stretch">
            <textField>
                <reportElement x="0" y="0" width="100" height="20" uuid="716bb440-2692-4c58-a1b7-972aff240c67"/>
                <textFieldExpression><![CDATA[$V{REPORT_COUNT}]]></textFieldExpression>
            </textField>
            <textField>
                <reportElement x="100" y="0" width="100" height="20" uuid="e5464783-d74a-4405-9997-ddb1531c6e42"/>
                <textFieldExpression><![CDATA[$F{_THIS}]]></textFieldExpression>
            </textField>
        </band>
    </detail>
</jasperReport>

我添加了$V{REPORT_COUNT}以获得数字（1,2,3）。

输出将是

1 cm45024
2 cm45025
3 CM45026