在iReport中有许多独立的未分级数据集的java

Question

我正在使用iReport 2.0.4将一些数据从java应用程序导出到excel

我的问题是，我的子报表在顶层报表下分组，但我希望它们是独立的报表。现在看起来是这样的

顺序
订单行1
收据
收货行1
收货行2
发票
发票第1行
发票第2行
订单
订单行2
收据
收货行1

我希望它是一个电子表格中的3个独立报告。像这样

顺序
所有订单行
收据
所有收据行
发票
所有发票行

目前，我将订单作为主报告，收据和发票作为子报告，放入明细栏订单

如果可能的话，获得这种布局的最佳方式是什么

Answer 1

在JasperReports 6.1.1 API中JRPdfExporterParameter.JASPER_PRINT_LIST和JRPdfExporterParameter.OUTPUT_STREAM已弃用我添加到@Alex K回答当前未弃用的方法：

“第一种方式。使用JasperReports API”

替换（不推荐使用的代码）：

exporter.setParameter(JRPdfExporterParameter.JASPER_PRINT_LIST, printList);
exporter.setParameter(JRPdfExporterParameter.OUTPUT_STREAM, output);

与

exporter.setExporterInput(SimpleExporterInput.getInstance(printList));
exporter.setExporterOutput(new SimpleOutputStreamExporterOutput(output));

Answer 2

• 第一条路。使用JasperReports API

您可以填写和编译三个单独的报告，然后使用JRPdfExporterParameter.JASPER_PRINT_LIST参数来构建单个报告，代码如下：

JasperReport ordersReport = JasperCompileManager.compileReport(srcOrdersReport);
JasperPrint jpOrdersReport = JasperFillManager.fillReport(ordersReport, ordersParamsMap, ordersDataSource);

JasperReport receiptsReport = JasperCompileManager.compileReport(srcReceiptsReport);
JasperPrint jpReceiptsReport = JasperFillManager.fillReport(receiptsReport, receiptsParamsMap, receiptsDataSource);

JasperReport invoicesReport = JasperCompileManager.compileReport(srcInvoicesReport);
JasperPrint jpInvoicesReport = JasperFillManager.fillReport(invoicesReport, invoicesParamsMap, invoicesDataSource);

List<JasperPrint> printList = new ArrayList<JasperPrint>();

printList.add(jpOrdersReport);
printList.add(receiptsReport);
printList.add(invoicesReport);

JRExporter exporter = new JRPdfExporter();
exporter.setParameter(JRPdfExporterParameter.JASPER_PRINT_LIST, printList);

exporter.setParameter(JRPdfExporterParameter.OUTPUT_STREAM, output);
exporter.exportReport();

你可以看看这个sample for your JR version - 2.0.4来了解更多细节

• 第二条路。使用多个数据集并列出组件

您可以在iReport 4中添加多个数据集。x版本到单个报告。每个数据集都可能包含自己的查询。列表组件可以使用自己的数据集

在这个示例（使用iReport 4.5.1构建）中，我在标题栏中放置了3个列表组件：

<?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="several_queries" language="groovy" pageWidth="595" pageHeight="842" whenNoDataType="AllSectionsNoDetail" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20">
    <subDataset name="OrdersDataset">
        <queryString>
            <![CDATA[SELECT TOP 5 ORDERID AS orderId, SHIPNAME AS orderShipName, SHIPCOUNTRY AS orderShipCounty, SHIPCITY  AS orderShipCity
FROM orders]]>
        </queryString>
        <field name="ORDERID" class="java.lang.Integer"/>
        <field name="ORDERSHIPNAME" class="java.lang.String"/>
        <field name="ORDERSHIPCOUNTY" class="java.lang.String"/>
        <field name="ORDERSHIPCITY" class="java.lang.String"/>
    </subDataset>
    <subDataset name="ReceiptsDataset">
        <queryString>
            <![CDATA[SELECT TOP 10 ID AS receiptId, CITY AS receiptCity FROM receipts]]>
        </queryString>
        <field name="RECEIPTID" class="java.lang.Integer"/>
        <field name="RECEIPTCITY" class="java.lang.String"/>
    </subDataset>
    <subDataset name="InvoicesDataset">
        <queryString>
            <![CDATA[SELECT TOP 7 ID AS invoiceId, TOTAL AS invoiceSum FROM invoices]]>
        </queryString>
        <field name="INVOICEID" class="java.lang.Integer"/>
        <field name="INVOICESUM" class="java.math.BigDecimal"/>
    </subDataset>
    <subDataset name="dataset1"/>
    <queryString>
        <![CDATA[SELECT 1 as t FROM dual WHERE 1=2]]>
    </queryString>
    <field name="t" class="java.lang.String"/>
    <background>
        <band splitType="Stretch"/>
    </background>
    <title>
        <band height="243" splitType="Stretch">
            <componentElement>
                <reportElement positionType="Float" x="0" y="44" width="555" height="19"/>
                <jr:list xmlns:jr="http://jasperreports.sourceforge.net/jasperreports/components" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports/components http://jasperreports.sourceforge.net/xsd/components.xsd" printOrder="Vertical">
                    <datasetRun subDataset="OrdersDataset">
                        <connectionExpression><![CDATA[$P{REPORT_CONNECTION}]]></connectionExpression>
                    </datasetRun>
                    <jr:listContents height="19" width="555">
                        <textField>
                            <reportElement x="0" y="0" width="100" height="19"/>
                            <box leftPadding="10" rightPadding="10">
                                <topPen lineWidth="1.0"/>
                                <leftPen lineWidth="1.0"/>
                                <bottomPen lineWidth="1.0"/>
                                <rightPen lineWidth="1.0"/>
                            </box>
                            <textElement/>
                            <textFieldExpression><![CDATA[$F{ORDERID}]]></textFieldExpression>
                        </textField>
                        <textField>
                            <reportElement x="100" y="0" width="100" height="19"/>
                            <box leftPadding="10" rightPadding="10">
                                <topPen lineWidth="1.0"/>
                                <leftPen lineWidth="1.0"/>
                                <bottomPen lineWidth="1.0"/>
                                <rightPen lineWidth="1.0"/>
                            </box>
                            <textElement/>
                            <textFieldExpression><![CDATA[$F{ORDERSHIPNAME}]]></textFieldExpression>
                        </textField>
                        <textField>
                            <reportElement x="200" y="0" width="100" height="19"/>
                            <box leftPadding="10" rightPadding="10">
                                <topPen lineWidth="1.0"/>
                                <leftPen lineWidth="1.0"/>
                                <bottomPen lineWidth="1.0"/>
                                <rightPen lineWidth="1.0"/>
                            </box>
                            <textElement/>
                            <textFieldExpression><![CDATA[$F{ORDERSHIPCOUNTY}]]></textFieldExpression>
                        </textField>
                        <textField>
                            <reportElement x="300" y="0" width="100" height="19"/>
                            <box leftPadding="10" rightPadding="10">
                                <topPen lineWidth="1.0"/>
                                <leftPen lineWidth="1.0"/>
                                <bottomPen lineWidth="1.0"/>
                                <rightPen lineWidth="1.0"/>
                            </box>
                            <textElement/>
                            <textFieldExpression><![CDATA[$F{ORDERSHIPCITY}]]></textFieldExpression>
                        </textField>
                    </jr:listContents>
                </jr:list>
            </componentElement>
            <componentElement>
                <reportElement positionType="Float" x="0" y="130" width="400" height="18"/>
                <jr:list xmlns:jr="http://jasperreports.sourceforge.net/jasperreports/components" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports/components http://jasperreports.sourceforge.net/xsd/components.xsd" printOrder="Vertical">
                    <datasetRun subDataset="ReceiptsDataset">
                        <connectionExpression><![CDATA[$P{REPORT_CONNECTION}]]></connectionExpression>
                    </datasetRun>
                    <jr:listContents height="18" width="400">
                        <textField>
                            <reportElement positionType="Float" x="100" y="0" width="100" height="18"/>
                            <box leftPadding="10" rightPadding="10">
                                <topPen lineWidth="1.0"/>
                                <leftPen lineWidth="1.0"/>
                                <bottomPen lineWidth="1.0"/>
                                <rightPen lineWidth="1.0"/>
                            </box>
                            <textElement/>
                            <textFieldExpression><![CDATA[$F{RECEIPTCITY}]]></textFieldExpression>
                        </textField>
                        <textField>
                            <reportElement positionType="Float" x="0" y="0" width="100" height="18"/>
                            <box leftPadding="10" rightPadding="10">
                                <topPen lineWidth="1.0"/>
                                <leftPen lineWidth="1.0"/>
                                <bottomPen lineWidth="1.0"/>
                                <rightPen lineWidth="1.0"/>
                            </box>
                            <textElement/>
                            <textFieldExpression><![CDATA[$F{RECEIPTID}]]></textFieldExpression>
                        </textField>
                    </jr:listContents>
                </jr:list>
            </componentElement>
            <staticText>
                <reportElement positionType="Float" x="0" y="4" width="400" height="20"/>
                <box topPadding="1" leftPadding="1" rightPadding="1">
                    <topPen lineWidth="1.0"/>
                    <leftPen lineWidth="1.0"/>
                    <rightPen lineWidth="1.0"/>
                </box>
                <textElement textAlignment="Center">
                    <font isBold="true" isItalic="true"/>
                </textElement>
                <text><![CDATA[Orders]]></text>
            </staticText>
            <staticText>
                <reportElement x="0" y="24" width="100" height="20"/>
                <box topPadding="1" leftPadding="1" bottomPadding="1" rightPadding="1">
                    <topPen lineWidth="1.0"/>
                    <leftPen lineWidth="1.0"/>
                    <bottomPen lineWidth="1.0"/>
                    <rightPen lineWidth="1.0"/>
                </box>
                <textElement textAlignment="Center">
                    <font isItalic="true"/>
                </textElement>
                <text><![CDATA[ID]]></text>
            </staticText>
            <staticText>
                <reportElement x="100" y="24" width="100" height="20"/>
                <box topPadding="1" leftPadding="1" bottomPadding="1" rightPadding="1">
                    <topPen lineWidth="1.0"/>
                    <leftPen lineWidth="1.0"/>
                    <bottomPen lineWidth="1.0"/>
                    <rightPen lineWidth="1.0"/>
                </box>
                <textElement textAlignment="Center">
                    <font isItalic="true"/>
                </textElement>
                <text><![CDATA[Customer name]]></text>
            </staticText>
            <staticText>
                <reportElement x="200" y="24" width="100" height="20"/>
                <box topPadding="1" leftPadding="1" bottomPadding="1" rightPadding="1">
                    <topPen lineWidth="1.0"/>
                    <leftPen lineWidth="1.0"/>
                    <bottomPen lineWidth="1.0"/>
                    <rightPen lineWidth="1.0"/>
                </box>
                <textElement textAlignment="Center">
                    <font isItalic="true"/>
                </textElement>
                <text><![CDATA[Customer country]]></text>
            </staticText>
            <staticText>
                <reportElement x="300" y="24" width="100" height="20"/>
                <box topPadding="1" leftPadding="1" bottomPadding="1" rightPadding="1">
                    <topPen lineWidth="1.0"/>
                    <leftPen lineWidth="1.0"/>
                    <bottomPen lineWidth="1.0"/>
                    <rightPen lineWidth="1.0"/>
                </box>
                <textElement textAlignment="Center">
                    <font isItalic="true"/>
                </textElement>
                <text><![CDATA[Customer city]]></text>
            </staticText>
            <staticText>
                <reportElement positionType="Float" x="0" y="109" width="100" height="20"/>
                <box topPadding="1" leftPadding="1" bottomPadding="1" rightPadding="1">
                    <topPen lineWidth="1.0"/>
                    <leftPen lineWidth="1.0"/>
                    <bottomPen lineWidth="1.0"/>
                    <rightPen lineWidth="1.0"/>
                </box>
                <textElement textAlignment="Center">
                    <font isItalic="true"/>
                </textElement>
                <text><![CDATA[ID]]></text>
            </staticText>
            <staticText>
                <reportElement positionType="Float" x="100" y="109" width="100" height="20"/>
                <box topPadding="1" leftPadding="1" bottomPadding="1" rightPadding="1">
                    <topPen lineWidth="1.0"/>
                    <leftPen lineWidth="1.0"/>
                    <bottomPen lineWidth="1.0"/>
                    <rightPen lineWidth="1.0"/>
                </box>
                <textElement textAlignment="Center">
                    <font isItalic="true"/>
                </textElement>
                <text><![CDATA[City]]></text>
            </staticText>
            <staticText>
                <reportElement positionType="Float" x="0" y="89" width="200" height="20"/>
                <box topPadding="1" leftPadding="1" rightPadding="1">
                    <topPen lineWidth="1.0"/>
                    <leftPen lineWidth="1.0"/>
                    <rightPen lineWidth="1.0"/>
                </box>
                <textElement textAlignment="Center">
                    <font isBold="true" isItalic="true"/>
                </textElement>
                <text><![CDATA[Receipts]]></text>
            </staticText>
            <componentElement>
                <reportElement positionType="Float" x="0" y="201" width="400" height="18"/>
                <jr:list xmlns:jr="http://jasperreports.sourceforge.net/jasperreports/components" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports/components http://jasperreports.sourceforge.net/xsd/components.xsd">
                    <datasetRun subDataset="InvoicesDataset">
                        <connectionExpression><![CDATA[$P{REPORT_CONNECTION}]]></connectionExpression>
                    </datasetRun>
                    <jr:listContents height="18" width="400">
                        <textField pattern="###0.00;-###0.00">
                            <reportElement positionType="Float" x="100" y="0" width="100" height="18"/>
                            <box leftPadding="10" rightPadding="10">
                                <topPen lineWidth="1.0"/>
                                <leftPen lineWidth="1.0"/>
                                <bottomPen lineWidth="1.0"/>
                                <rightPen lineWidth="1.0"/>
                            </box>
                            <textElement/>
                            <textFieldExpression><![CDATA[$F{INVOICESUM}]]></textFieldExpression>
                        </textField>
                        <textField>
                            <reportElement positionType="Float" x="0" y="0" width="100" height="18"/>
                            <box leftPadding="10" rightPadding="10">
                                <topPen lineWidth="1.0"/>
                                <leftPen lineWidth="1.0"/>
                                <bottomPen lineWidth="1.0"/>
                                <rightPen lineWidth="1.0"/>
                            </box>
                            <textElement/>
                            <textFieldExpression><![CDATA[$F{INVOICEID}]]></textFieldExpression>
                        </textField>
                    </jr:listContents>
                </jr:list>
            </componentElement>
            <staticText>
                <reportElement positionType="Float" x="0" y="161" width="200" height="20"/>
                <box topPadding="1" leftPadding="1" rightPadding="1">
                    <topPen lineWidth="1.0"/>
                    <leftPen lineWidth="1.0"/>
                    <rightPen lineWidth="1.0"/>
                </box>
                <textElement textAlignment="Center">
                    <font isBold="true" isItalic="true"/>
                </textElement>
                <text><![CDATA[Invoices]]></text>
            </staticText>
            <staticText>
                <reportElement positionType="Float" x="100" y="181" width="100" height="20"/>
                <box topPadding="1" leftPadding="1" bottomPadding="1" rightPadding="1">
                    <topPen lineWidth="1.0"/>
                    <leftPen lineWidth="1.0"/>
                    <bottomPen lineWidth="1.0"/>
                    <rightPen lineWidth="1.0"/>
                </box>
                <textElement textAlignment="Center">
                    <font isItalic="true"/>
                </textElement>
                <text><![CDATA[Sum]]></text>
            </staticText>
            <staticText>
                <reportElement positionType="Float" x="0" y="181" width="100" height="20"/>
                <box topPadding="1" leftPadding="1" bottomPadding="1" rightPadding="1">
                    <topPen lineWidth="1.0"/>
                    <leftPen lineWidth="1.0"/>
                    <bottomPen lineWidth="1.0"/>
                    <rightPen lineWidth="1.0"/>
                </box>
                <textElement textAlignment="Center">
                    <font isItalic="true"/>
                </textElement>
                <text><![CDATA[ID]]></text>
            </staticText>
        </band>
    </title>
</jasperReport>

报告的设计是：

结果将是（通过iReport预览）：