jasperreports - excel export

Question

i have already managed to export a pdf report with jasperreports but i cannot export to excel format.

The xls output file my program produces doesn't open with Excel(corrupted), and is totally empty if i open it with LibreOffice.

Here is the jrxml code(a test example):

<?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="xls" language="groovy" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="d8281a37-1a28-43e6-824c-0d39b69f7d23">
<property name="net.sf.jasperreports.export.xls.detect.cell.type" value="true"/>
<property name="net.sf.jasperreports.print.keep.full.text" value="true"/>
<property name="net.sf.jasperreports.export.xls.wrap.text" value="false"/>
<property name="net.sf.jasperreports.export.xls.auto.fit.row" value="true"/>
<property name="net.sf.jasperreports.export.xls.auto.fit.column" value="true"/>
<style name="table">
    <box>
        <pen lineWidth="1.0" lineColor="#000000"/>
    </box>
</style>
<style name="table_TH" mode="Opaque" backcolor="#F0F8FF">
    <box>
        <pen lineWidth="0.5" lineColor="#000000"/>
    </box>
</style>
<style name="table_CH" mode="Opaque" backcolor="#BFE1FF">
    <box>
        <pen lineWidth="0.5" lineColor="#000000"/>
    </box>
</style>
<style name="table_TD" mode="Opaque" backcolor="#FFFFFF">
    <box>
        <pen lineWidth="0.5" lineColor="#000000"/>
    </box>
</style>
<subDataset name="Table Dataset 1" uuid="3897caef-b047-4ba2-8b62-bd46ec43553d"/>
<field name="credit" class="java.lang.Double"/>
<field name="time" class="java.lang.String"/>
<title>
    <band height="50"/>
</title>
<pageHeader>
    <band height="50">
        <staticText>
            <reportElement x="0" y="30" width="100" height="20" uuid="4a091ece-05dc-48a7-8390-bf3722715ca8"/>
            <text><![CDATA[Nikos]]></text>
        </staticText>
    </band>
</pageHeader>
<columnHeader>
    <band height="50">
        <staticText>
            <reportElement x="0" y="30" width="100" height="20" uuid="39c43e60-ee74-4373-bafb-b78647870be5"/>
            <text><![CDATA[Nikos]]></text>
        </staticText>
    </band>
</columnHeader>
<detail>
    <band height="153">
        <textField>
            <reportElement x="0" y="0" width="100" height="20" uuid="ec837765-6e78-417f-b6ea-1cec760fba54"/>
            <textFieldExpression><![CDATA[$F{credit}]]></textFieldExpression>
        </textField>
        <textField>
            <reportElement x="100" y="0" width="100" height="20" uuid="23e21ff0-e776-4a04-a5d0-a4188694446e"/>
            <textFieldExpression><![CDATA[$F{time}]]></textFieldExpression>
        </textField>
    </band>
</detail>
<summary>
    <band height="229">
        <textField>
            <reportElement x="0" y="0" width="100" height="20" uuid="a5015437-e944-41c1-88bf-9a0d9f88e2d0"/>
            <textFieldExpression><![CDATA[$F{credit}]]></textFieldExpression>
        </textField>
        <textField>
            <reportElement x="100" y="0" width="100" height="20" uuid="066120ca-8df1-40fb-8dea-b93bf5ef30a9"/>
            <textFieldExpression><![CDATA[$F{time}]]></textFieldExpression>
        </textField>
    </band>
</summary>

And this is my java program (contains also pdf successful export):

public static void main(String[] args) {
    String inPdfFileName = "src/test/javabeans.jasper";
    String inXlsFileName = "src/test/xls.jasper";
    String outPdfName = "test.pdf";
    String outXlsName = "test.xls";
    HashMap pdfParams = new HashMap();
    HashMap xlsParams = new HashMap();

    Collection<FundBean> fundbeans = FundBeanFactory.getBeanCollection();
    pdfParams.put("HighTime", FundBeanFactory.getMax().getTime());
    pdfParams.put("LowTime", FundBeanFactory.getMin().getTime());

    pdfParams.put("Highest", FundBeanFactory.getMax().getCredit().toString());
    pdfParams.put("Lowest", FundBeanFactory.getMin().getCredit().toString());

    JRBeanCollectionDataSource beanCollectionDataSource = new JRBeanCollectionDataSource(fundbeans);
    try {
        JasperPrint PdfPrint = JasperFillManager.fillReport(
                inPdfFileName,
                pdfParams,
                beanCollectionDataSource);

        JasperPrint xlsPrint = JasperFillManager.fillReport(
                inXlsFileName,
                xlsParams,
                beanCollectionDataSource);

        JRPdfExporter pdfExporter = new JRPdfExporter();
        pdfExporter.setExporterInput(new SimpleExporterInput(PdfPrint));
        pdfExporter.setExporterOutput(new SimpleOutputStreamExporterOutput(outPdfName));
        SimplePdfExporterConfiguration configuration = new SimplePdfExporterConfiguration();
        configuration.setCreatingBatchModeBookmarks(true);
        pdfExporter.setConfiguration(configuration);
        pdfExporter.exportReport();

        JRXlsExporter xlsExporter = new JRXlsExporter();

        xlsExporter.setExporterInput(new SimpleExporterInput(xlsPrint));
        xlsExporter.setExporterOutput(new SimpleOutputStreamExporterOutput(outXlsName));
        SimpleXlsReportConfiguration xlsReportConfiguration = new SimpleXlsReportConfiguration();
        xlsReportConfiguration.setOnePagePerSheet(false);
        xlsReportConfiguration.setRemoveEmptySpaceBetweenRows(true);
        xlsReportConfiguration.setDetectCellType(false);
        xlsReportConfiguration.setWhitePageBackground(false);
        xlsExporter.setConfiguration(xlsReportConfiguration);

        xlsExporter.exportReport();
    } catch (JRException e) {
        e.printStackTrace();
    }
  }

When i preview in xls format with iReport Designer i get the desired result. So i guess the problem lies in my java code...

Answer 1

Thanks for all help, i figured out what caused the problem, i was using the same bean List both for the pdf report and for the xls,and for some reason when i was passing the list to fillReport() to create the print object for the pdf, all beans where removed from the list. I created a second JRBeanCollection for the xls Print object and everything works fine!