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为什么编译的动态报告(.jasper)无法反映更改？

2019-11-18 07:09:50  阅读：301  来源： 互联网

标签：export-to-excel jasper-reports dynamic-reports java


我正在使用动态报表库创建一个Jasper报表.
我正在尝试编译动态报告,以在以后使用编译后的版本.但是我的报告的编译版本没有反映出动态报告所做的更改

这是我的代码：

JasperReportBuilder report = report();
report.setTemplateDesign(new File("Template.jrxml"));
report.setParameters(parameters);

List<TextColumnBuilder> lsColumns = getDRColumnsFromRecordset(rs);
for (TextColumnBuilder tcbColumn : lsColumns) {
    report.addColumn(tcbColumn);
}
report.ignorePageWidth();
report.ignorePagination();
report.setDataSource(rs);
report.toXlsx();

//At the end, i compile the dynamic report
File compiledTemplate = new File("CompiledTemplate.jasper");
JasperCompileManager.compileReportToFile(report.toJasperDesign(), compiledTemplate.getPath());

在上面的代码中,它可以正确生成(当我运行.toXlsx()时)

但是,在应用程序的另一点,我检查编译的模板是否存在.如果存在,我将使用已编译的模板来生成报告.

但是,当我尝试使用编译版本生成模板时,它返回空.

它是在没有记录集列的情况下生成的-我在上面的代码中动态添加了这些记录集.

更新状态
2016年8月31日
我的情况是：我有一个包含动态输出的过程(取决于您收到的参数).因此,例如,当过程接收@Cod = 1参数时,它将具有特定的SQL输出.
我希望第一次运行动态报告时,根据过程输出生成已编译的报告(.jasper).
而且在以后的时间里,我可以重用已编译的报告(.jasper)来仅使用它来生成新报告.

我解决了部分问题.当它第二次运行时,jrxml模板中没有SQL.因此,我在模板jrxml中插入了以下代码：


    <parameter name="QUERY" class="java.lang.String" isForPrompting="false"/>
    <queryString>
        <![CDATA[$P!{QUERY}]]>
    </queryString>

并且我在程序中插入了以下代码(使用DynamicReports中生成的.jasper时)：

JasperReport jasperReport = (JasperReport) JRLoader.loadObject(compiledTemplate);        
parameters.put("QUERY", "dbo.pr_test_procedure @Cod=" + parameters.get("COD")); 
        JasperPrint jasperPrint
                = JasperFillManager.fillReport(jasperReport,
                        parameters,
                        conn);

现在,报告将带来查询结果(如动态报告中所述).
现在,问题是另一个：它不显示列标题.仅显示记录.
当我通过动态报告生成时,同时显示两者.使用编译的碧玉生成时,仅显示记录.

我现在的结果：
这是动态报告中的报告(不进行编译)：https://s21.postimg.org/arh0w5isn/relatorio_1.jpg
这是Jasper https://s17.postimg.org/iozct8mwf/relatorio_2.jpg中生成的编译后的报告

这是已编译文件的jrxml：


<?xml version="1.0" encoding="UTF-8"?>
<!-- Created with Jaspersoft Studio version 6.1.1.final using JasperReports Library version 6.1.1  -->
<!-- 2016-08-31T14:20:33 -->
<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="Template_Basico" pageWidth="1392" pageHeight="595" orientation="Landscape" whenNoDataType="AllSectionsNoDetail" columnWidth="1352" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" isIgnorePagination="true" uuid="8a465670-cc4a-4270-965f-8efb86e33b71">
    <property name="template.engine" value="tabular_template"/>
    <property name="net.sf.jasperreports.export.xls.detect.cell.type" value="true"/>
    <property name="net.sf.jasperreports.export.xls.show.gridlines" value="false"/>
    <template><![CDATA[$P{PATH_PADRAODSM} + "/" + "Template_Basico.jrtx"]]></template>
    <style name="TabelaCabecalho" mode="Opaque" backcolor="#4692F0" scaleImage="FillFrame" isBlankWhenNull="true" fontName="SansSerif" fontSize="13" isBold="true">
        <pen lineStyle="Solid" lineColor="#000000"/>
        <box>
            <topPen lineWidth="1.0"/>
            <leftPen lineWidth="1.0"/>
            <bottomPen lineWidth="1.0"/>
            <rightPen lineWidth="1.0"/>
        </box>
    </style>
    <style name="style_36_" forecolor="#000000" isBlankWhenNull="true" fontName="SansSerif" fontSize="10">
        <box topPadding="2" leftPadding="2" bottomPadding="2" rightPadding="2"/>
    </style>
    <style name="Fonte" pattern="" isBlankWhenNull="true" fontName="Verdana" fontSize="11" isBold="false"/>
    <subDataset name="tableDataset" uuid="73560e0d-a48c-4cef-a6c7-dc2799080847">
        <property name="com.jaspersoft.studio.data.defaultdataadapter" value="One Empty Record"/>
        <queryString>
            <![CDATA[]]>
        </queryString>
    </subDataset>
    <scriptlet name="DYNAMICREPORTS" class="net.sf.dynamicreports.jasper.base.JasperScriptlet"/>
    <parameter name="CODPEDIDO" class="java.lang.Integer">
        <parameterDescription><![CDATA[Código do pedido do relatório]]></parameterDescription>
        <defaultValueExpression><![CDATA[90200]]></defaultValueExpression>
    </parameter>
    <parameter name="PATH" class="java.lang.String" isForPrompting="false">
        <parameterDescription><![CDATA[]]></parameterDescription>
        <defaultValueExpression><![CDATA["/home/diego.queres/Desenv/Relatórios Clientes/PadraoDSM_Templates"]]></defaultValueExpression>
    </parameter>
    <parameter name="TITULO" class="java.lang.String">
        <defaultValueExpression><![CDATA["Relatório"]]></defaultValueExpression>
    </parameter>
    <parameter name="LOGOTIPO_1" class="java.lang.String" isForPrompting="false">
        <parameterDescription><![CDATA[]]></parameterDescription>
        <defaultValueExpression><![CDATA["logo-vagas.png"]]></defaultValueExpression>
    </parameter>
    <parameter name="PATH_PADRAODSM" class="java.lang.String">
        <defaultValueExpression><![CDATA["/home/diego.queres/Desenv/Relatórios Clientes/PadraoDSM_Templates"]]></defaultValueExpression>
    </parameter>
    <parameter name="QUERY" class="java.lang.String" isForPrompting="false"/>
    <parameter name="CUSTOM_VALUES" class="net.sf.dynamicreports.jasper.base.JasperCustomValues"/>
    <queryString>
        <![CDATA[$P!{QUERY}]]>
    </queryString>
    <field name="Codigo do candidato" class="java.lang.Integer">
        <fieldDescription><![CDATA[Codigo do candidato]]></fieldDescription>
    </field>
    <field name="Nome" class="java.lang.String">
        <fieldDescription><![CDATA[Nome]]></fieldDescription>
    </field>
    <field name="E-mail" class="java.lang.String">
        <fieldDescription><![CDATA[E-mail]]></fieldDescription>
    </field>
    <field name="Idade" class="java.lang.Integer">
        <fieldDescription><![CDATA[Idade]]></fieldDescription>
    </field>
    <field name="Telefone(s) Contato" class="java.lang.String">
        <fieldDescription><![CDATA[Telefone(s) Contato]]></fieldDescription>
    </field>
    <field name="Cidade e Estado" class="java.lang.String">
        <fieldDescription><![CDATA[Cidade e Estado]]></fieldDescription>
    </field>
    <field name="Tipo de Formação 1" class="java.lang.String">
        <fieldDescription><![CDATA[Tipo de Formação 1]]></fieldDescription>
    </field>
    <field name="Formação 1" class="java.lang.String">
        <fieldDescription><![CDATA[Formação 1]]></fieldDescription>
    </field>
    <field name="Instituição 1" class="java.lang.String">
        <fieldDescription><![CDATA[Instituição 1]]></fieldDescription>
    </field>
    <field name="Tipo de Formação 2" class="java.lang.String">
        <fieldDescription><![CDATA[Tipo de Formação 2]]></fieldDescription>
    </field>
    <field name="Formação 2" class="java.lang.String">
        <fieldDescription><![CDATA[Formação 2]]></fieldDescription>
    </field>
    <field name="Instituição 2" class="java.lang.String">
        <fieldDescription><![CDATA[Instituição 2]]></fieldDescription>
    </field>
    <field name="Histórico profissional (2 últimas empresas)" class="java.lang.String">
        <fieldDescription><![CDATA[Histórico profissional (2 últimas empresas)]]></fieldDescription>
    </field>
    <title>
        <band height="76" splitType="Stretch">
            <image scaleImage="RetainShape">
                <reportElement x="22" y="32" width="100" height="40" uuid="6047dd6f-0536-4689-bafa-083c4dad3a84"/>
                <imageExpression><![CDATA[$P{PATH_PADRAODSM} + "/" + $P{LOGOTIPO_1}]]></imageExpression>
            </image>
            <textField>
                <reportElement x="140" y="40" width="800" height="25" uuid="0282ba00-7352-4d77-bb8b-c0bb0ba0e585"/>
                <textElement verticalAlignment="Bottom">
                    <font size="16"/>
                </textElement>
                <textFieldExpression><![CDATA[$P{TITULO}]]></textFieldExpression>
            </textField>
        </band>
    </title>
    <pageHeader>
        <band height="36">
            <line>
                <reportElement mode="Transparent" x="0" y="12" width="100" height="1" forecolor="#FFFFFF" uuid="99aed6f5-8941-4876-a95c-1ee23bd1dc0a">
                    <propertyExpression name="net.sf.jasperreports.export.xls.sheet.name"><![CDATA["Dados"]]></propertyExpression>
                </reportElement>
            </line>
        </band>
    </pageHeader>
    <columnHeader>
        <band height="16">
            <frame>
                <reportElement key="columnHeader.list1" positionType="Float" x="0" y="0" width="1352" height="16" uuid="46d7f64e-9ba3-4fa3-b6f4-f4cde887a658"/>
                <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                    <reportElement key="columnHeader.column_Codigo do candidato.title1" style="TabelaCabecalho" positionType="Float" stretchType="RelativeToTallestObject" x="0" y="0" width="104" height="16" uuid="4e458915-229a-4de2-8cdc-ca86d9721252"/>
                    <textFieldExpression><![CDATA[$P{CUSTOM_VALUES}.getValue("simpleExpression_10_")]]></textFieldExpression>
                </textField>
                <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                    <reportElement key="columnHeader.column_Nome.title1" style="TabelaCabecalho" positionType="Float" stretchType="RelativeToTallestObject" x="104" y="0" width="104" height="16" uuid="95caf451-7a8b-41a6-a942-21cb7e3e6110"/>
                    <textFieldExpression><![CDATA[$P{CUSTOM_VALUES}.getValue("simpleExpression_12_")]]></textFieldExpression>
                </textField>
                <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                    <reportElement key="columnHeader.column_E-mail.title1" style="TabelaCabecalho" positionType="Float" stretchType="RelativeToTallestObject" x="208" y="0" width="104" height="16" uuid="f1b3ad3f-c55d-478d-b4b5-9c73fb414477"/>
                    <textFieldExpression><![CDATA[$P{CUSTOM_VALUES}.getValue("simpleExpression_14_")]]></textFieldExpression>
                </textField>
                <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                    <reportElement key="columnHeader.column_Idade.title1" style="TabelaCabecalho" positionType="Float" stretchType="RelativeToTallestObject" x="312" y="0" width="104" height="16" uuid="df361b4f-cad3-4770-b75c-38bfe3f1c281"/>
                    <textFieldExpression><![CDATA[$P{CUSTOM_VALUES}.getValue("simpleExpression_16_")]]></textFieldExpression>
                </textField>
                <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                    <reportElement key="columnHeader.column_Telefone(s) Contato.title1" style="TabelaCabecalho" positionType="Float" stretchType="RelativeToTallestObject" x="416" y="0" width="104" height="16" uuid="4dc88b66-dcd6-4626-a788-7da1f70f7f6b"/>
                    <textFieldExpression><![CDATA[$P{CUSTOM_VALUES}.getValue("simpleExpression_18_")]]></textFieldExpression>
                </textField>
                <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                    <reportElement key="columnHeader.column_Cidade e Estado.title1" style="TabelaCabecalho" positionType="Float" stretchType="RelativeToTallestObject" x="520" y="0" width="104" height="16" uuid="011ca35b-fe81-484e-aa1b-d383053452df"/>
                    <textFieldExpression><![CDATA[$P{CUSTOM_VALUES}.getValue("simpleExpression_20_")]]></textFieldExpression>
                </textField>
                <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                    <reportElement key="columnHeader.column_Tipo de Formação 1.title1" style="TabelaCabecalho" positionType="Float" stretchType="RelativeToTallestObject" x="624" y="0" width="104" height="16" uuid="1e31895e-9fcf-4bb0-8e40-bd419c0af763"/>
                    <textFieldExpression><![CDATA[$P{CUSTOM_VALUES}.getValue("simpleExpression_22_")]]></textFieldExpression>
                </textField>
                <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                    <reportElement key="columnHeader.column_Formação 1.title1" style="TabelaCabecalho" positionType="Float" stretchType="RelativeToTallestObject" x="728" y="0" width="104" height="16" uuid="86ed4ae1-7600-4df3-966f-401f1967e93b"/>
                    <textFieldExpression><![CDATA[$P{CUSTOM_VALUES}.getValue("simpleExpression_24_")]]></textFieldExpression>
                </textField>
                <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                    <reportElement key="columnHeader.column_Instituição 1.title1" style="TabelaCabecalho" positionType="Float" stretchType="RelativeToTallestObject" x="832" y="0" width="104" height="16" uuid="1ce1e9dc-816a-410f-b4f0-71550c59ceeb"/>
                    <textFieldExpression><![CDATA[$P{CUSTOM_VALUES}.getValue("simpleExpression_26_")]]></textFieldExpression>
                </textField>
                <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                    <reportElement key="columnHeader.column_Tipo de Formação 2.title1" style="TabelaCabecalho" positionType="Float" stretchType="RelativeToTallestObject" x="936" y="0" width="104" height="16" uuid="e589cd82-0758-468a-92e8-dc1a81f793ba"/>
                    <textFieldExpression><![CDATA[$P{CUSTOM_VALUES}.getValue("simpleExpression_28_")]]></textFieldExpression>
                </textField>
                <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                    <reportElement key="columnHeader.column_Formação 2.title1" style="TabelaCabecalho" positionType="Float" stretchType="RelativeToTallestObject" x="1040" y="0" width="104" height="16" uuid="e719543b-a0e6-4f36-b265-82b0f6dbb11e"/>
                    <textFieldExpression><![CDATA[$P{CUSTOM_VALUES}.getValue("simpleExpression_30_")]]></textFieldExpression>
                </textField>
                <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                    <reportElement key="columnHeader.column_Instituição 2.title1" style="TabelaCabecalho" positionType="Float" stretchType="RelativeToTallestObject" x="1144" y="0" width="104" height="16" uuid="d06d26bc-71a4-4444-b061-4e05bb1b7168"/>
                    <textFieldExpression><![CDATA[$P{CUSTOM_VALUES}.getValue("simpleExpression_32_")]]></textFieldExpression>
                </textField>
                <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                    <reportElement key="columnHeader.column_Histórico profissional (2 últimas empresas).title1" style="TabelaCabecalho" positionType="Float" stretchType="RelativeToTallestObject" x="1248" y="0" width="104" height="16" uuid="0cd532cc-f4fb-47e9-aeff-cc1c61bd8a6c"/>
                    <textFieldExpression><![CDATA[$P{CUSTOM_VALUES}.getValue("simpleExpression_34_")]]></textFieldExpression>
                </textField>
            </frame>
        </band>
    </columnHeader>
    <detail>
        <band height="16">
            <frame>
                <reportElement key="detail.list1" positionType="Float" x="0" y="0" width="1352" height="16" uuid="6d7ecd54-a04a-477e-9848-3247fb8ef789"/>
                <textField isStretchWithOverflow="true" pattern="#,##0" isBlankWhenNull="true">
                    <reportElement key="detail.column_Codigo do candidato1" style="style_36_" positionType="Float" stretchType="RelativeToTallestObject" x="0" y="0" width="104" height="16" isPrintInFirstWholeBand="true" uuid="640caec8-b919-41e2-aa57-93db114b9aec"/>
                    <textElement textAlignment="Right"/>
                    <textFieldExpression><![CDATA[$F{Codigo do candidato}]]></textFieldExpression>
                </textField>
                <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                    <reportElement key="detail.column_Nome1" style="style_36_" positionType="Float" stretchType="RelativeToTallestObject" x="104" y="0" width="104" height="16" isPrintInFirstWholeBand="true" uuid="78c8ddc7-82c5-4b8e-8ae2-a0c6be535dc7"/>
                    <textElement textAlignment="Left"/>
                    <textFieldExpression><![CDATA[$F{Nome}]]></textFieldExpression>
                </textField>
                <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                    <reportElement key="detail.column_E-mail1" style="style_36_" positionType="Float" stretchType="RelativeToTallestObject" x="208" y="0" width="104" height="16" isPrintInFirstWholeBand="true" uuid="c687dc47-b312-45d1-8f8f-af0952d2e0ad"/>
                    <textElement textAlignment="Left"/>
                    <textFieldExpression><![CDATA[$F{E-mail}]]></textFieldExpression>
                </textField>
                <textField isStretchWithOverflow="true" pattern="#,##0" isBlankWhenNull="true">
                    <reportElement key="detail.column_Idade1" style="style_36_" positionType="Float" stretchType="RelativeToTallestObject" x="312" y="0" width="104" height="16" isPrintInFirstWholeBand="true" uuid="74fe0b04-c84b-4a82-96e8-1fa83acf5989"/>
                    <textElement textAlignment="Right"/>
                    <textFieldExpression><![CDATA[$F{Idade}]]></textFieldExpression>
                </textField>
                <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                    <reportElement key="detail.column_Telefone(s) Contato1" style="style_36_" positionType="Float" stretchType="RelativeToTallestObject" x="416" y="0" width="104" height="16" isPrintInFirstWholeBand="true" uuid="f25f3fbd-3d07-4865-9ba0-9196281a3536"/>
                    <textElement textAlignment="Left"/>
                    <textFieldExpression><![CDATA[$F{Telefone(s) Contato}]]></textFieldExpression>
                </textField>
                <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                    <reportElement key="detail.column_Cidade e Estado1" style="style_36_" positionType="Float" stretchType="RelativeToTallestObject" x="520" y="0" width="104" height="16" isPrintInFirstWholeBand="true" uuid="2bef953f-ea52-4750-af77-0a8bc3efc3a0"/>
                    <textElement textAlignment="Left"/>
                    <textFieldExpression><![CDATA[$F{Cidade e Estado}]]></textFieldExpression>
                </textField>
                <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                    <reportElement key="detail.column_Tipo de Formação 11" style="style_36_" positionType="Float" stretchType="RelativeToTallestObject" x="624" y="0" width="104" height="16" isPrintInFirstWholeBand="true" uuid="a614443a-b729-4037-943c-d16f3ba8d1e9"/>
                    <textElement textAlignment="Left"/>
                    <textFieldExpression><![CDATA[$F{Tipo de Formação 1}]]></textFieldExpression>
                </textField>
                <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                    <reportElement key="detail.column_Formação 11" style="style_36_" positionType="Float" stretchType="RelativeToTallestObject" x="728" y="0" width="104" height="16" isPrintInFirstWholeBand="true" uuid="ac8d1676-a360-439f-925d-262df7f356e2"/>
                    <textElement textAlignment="Left"/>
                    <textFieldExpression><![CDATA[$F{Formação 1}]]></textFieldExpression>
                </textField>
                <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                    <reportElement key="detail.column_Instituição 11" style="style_36_" positionType="Float" stretchType="RelativeToTallestObject" x="832" y="0" width="104" height="16" isPrintInFirstWholeBand="true" uuid="e35aeb7c-a96d-41d3-a1c0-1c707c890d19"/>
                    <textElement textAlignment="Left"/>
                    <textFieldExpression><![CDATA[$F{Instituição 1}]]></textFieldExpression>
                </textField>
                <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                    <reportElement key="detail.column_Tipo de Formação 21" style="style_36_" positionType="Float" stretchType="RelativeToTallestObject" x="936" y="0" width="104" height="16" isPrintInFirstWholeBand="true" uuid="e8421e2e-5aa8-4ef5-b304-f49f708cc7df"/>
                    <textElement textAlignment="Left"/>
                    <textFieldExpression><![CDATA[$F{Tipo de Formação 2}]]></textFieldExpression>
                </textField>
                <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                    <reportElement key="detail.column_Formação 21" style="style_36_" positionType="Float" stretchType="RelativeToTallestObject" x="1040" y="0" width="104" height="16" isPrintInFirstWholeBand="true" uuid="c43405f4-08ef-484a-aa7b-de76c850bd48"/>
                    <textElement textAlignment="Left"/>
                    <textFieldExpression><![CDATA[$F{Formação 2}]]></textFieldExpression>
                </textField>
                <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                    <reportElement key="detail.column_Instituição 21" style="style_36_" positionType="Float" stretchType="RelativeToTallestObject" x="1144" y="0" width="104" height="16" isPrintInFirstWholeBand="true" uuid="3f1903a0-30a2-430b-bd57-7c8ce1211a82"/>
                    <textElement textAlignment="Left"/>
                    <textFieldExpression><![CDATA[$F{Instituição 2}]]></textFieldExpression>
                </textField>
                <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                    <reportElement key="detail.column_Histórico profissional (2 últimas empresas)1" style="style_36_" positionType="Float" stretchType="RelativeToTallestObject" x="1248" y="0" width="104" height="16" isPrintInFirstWholeBand="true" uuid="f07d5d11-9422-4c35-b8f5-3904982ca456"/>
                    <textElement textAlignment="Left"/>
                    <textFieldExpression><![CDATA[$F{Histórico profissional (2 últimas empresas)}]]></textFieldExpression>
                </textField>
            </frame>
        </band>
    </detail>
    <pageFooter>
        <band height="38" splitType="Stretch"/>
    </pageFooter>
    <summary>
        <band height="46" splitType="Stretch">
            <property name="local_mesure_unitheight" value="pixel"/>
            <textField pattern="">
                <reportElement x="0" y="34" width="560" height="12" uuid="4ca54330-fb17-4ef6-8d18-3ceace2083b9"/>
                <textElement textAlignment="Left"/>
                <textFieldExpression><![CDATA["Relatório gerado por VAGAS Tecnologia de Software em " + new SimpleDateFormat("dd/MM/yy HH:mm:ss").format(new java.util.Date())]]></textFieldExpression>
            </textField>
        </band>
    </summary>
</jasperReport>

解决方法:

您将保存未填充的报表的编译版本,而不是JasperPrint对象的JasperDesign对象

您应该使用report.toJasperPrint()

例

JRSaver.saveObject(report.toJasperPrint(),  "fullPath/yourReport.jrprint");

要重新加载已填写的报告,请使用：

JasperPrint jasperPrint = (JasperPrint)JRLoader.loadObject(new java.io.FileInputStream("fullPath/yourReport.jrprint"));

并使用JasperExportManager或导出类示例JRXlsExporter之一进行导出

标签：export-to-excel,jasper-reports,dynamic-reports,java
来源： https://codeday.me/bug/20191118/2026613.html

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