jasper map crosstab crosstabHeaderCell from subdat

2019-03-06 15:57发布

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问题:

i had need to show crosstabHeaderCell columns dynamically from string array. this is a json

{
    "header": {
        "columnName": [
            "Product Store1",
            "location"
        ],
        "values": [{
                "purchase": {
                    "name": "bags",
                    "location": "MainMarket "
                },
                "weekSpend": [{
                        "weekStartDate": 20181105,
                        "spend": 100

                    },
                    {
                        "weekStartDate": 20181112,
                        "spend": 200

                    }
                ]
            },
            {
                "purchase": {
                    "name": "shoes",
                    "location": "MainMarket "
                },
                "weekSpend": [{
                        "weekStartDate": 20181105,
                        "spend": 100

                    },
                    {
                        "weekStartDate": 20181112,
                        "spend": 200

                    }
                ]
            }
        ]
    }

I want to show crosstabHeaderCell from list of values of array columnName in cross tab. from the above json I am able to iterate and show product name and location as rows and weekSpend as column with data set of crosstab as 

<crosstabDataset isDataPreSorted="true">
            <dataset>
                <datasetRun subDataset="crossTabDataSet" uuid="e7b27508-8a48-4785-a48e-c646249df9a9">
                    <dataSourceExpression><![CDATA[((net.sf.jasperreports.engine.data.JsonQLDataSource)$P{REPORT_DATA_SOURCE}).subDataSource("..values(@size > 0)..weekSpend.*")]]></dataSourceExpression>
                </datasetRun>
            </dataset>
        </crosstabDataset>

when i specify list component for crosstabHeaderCell as below i am getting error parameter REPORT_DATA_SOURCE not found. 

<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="Horizontal" ignoreWidth="true">
                <datasetRun subDataset="listcol" uuid="a13d0691-5b9e-4d9f-aaa0-9d0ff0b67b78">
<dataSourceExpression><![CDATA[((net.sf.jasperreports.engine.data.JsonQLDataSource)$P{REPORT_DATA_SOURCE}).subDataSource("$.columnName.*")]]></dataSourceExpression>
                </datasetRun>
                <jr:listContents height="30" width="100">
                    <textField>
                        <reportElement x="0" y="0" width="100" height="30" uuid="99c3d5fe-9f90-4efc-bdab-4371eee17d54"/>
                        <textFieldExpression><![CDATA[$F{namecol}]]></textFieldExpression>
                    </textField>
                </jr:listContents>
            </jr:list>

the dataset listcol is defined as 

<subDataset name="listcol" uuid="2630f2ff-b912-4f05-8189-7a5d47eada9e">
        <field name="namecol" class="java.lang.String">
            <property name="net.sf.jasperreports.jsonql.field.expression" value="[0]"/>
        </field>
    </subDataset>

how can a i refer to list of values from crosstab data set. why does list fail with parameter not found exception for REPORT_DATA_SOURCE. can we set the REPORT_DATA_SOURCE value from crosstab dataset to be used by inner dataset.

if i remove REPORT_DATA_SOURCE jr:list and use querystring listcol as $.columnName.*. i get blank in crosstabHeaderCell

Expected output is

Thanks Anjana,

回答1:

You need to make use of crosstabParameters in order to pass data from the enclosing report, like so:

<?xml version="1.0" encoding="UTF-8"?>
<!-- Created with Jaspersoft Studio version 6.6.0.final using JasperReports Library version 6.6.0  -->
<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="XTabReport" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="33c43d53-f9b3-4cc9-92b2-bedd805d66a9">
    <property name="com.jaspersoft.studio.data.defaultdataadapter" value="json_crosstab/DataAdapter.xml"/>
    <style name="Crosstab_CH" mode="Opaque" backcolor="#F0F8FF">
        <box>
            <pen lineWidth="0.5" lineColor="#000000"/>
            <topPen lineWidth="0.5" lineColor="#000000"/>
            <leftPen lineWidth="0.5" lineColor="#000000"/>
            <bottomPen lineWidth="0.5" lineColor="#000000"/>
            <rightPen lineWidth="0.5" lineColor="#000000"/>
        </box>
    </style>
    <style name="Crosstab_CG" mode="Opaque" backcolor="#BFE1FF">
        <box>
            <pen lineWidth="0.5" lineColor="#000000"/>
            <topPen lineWidth="0.5" lineColor="#000000"/>
            <leftPen lineWidth="0.5" lineColor="#000000"/>
            <bottomPen lineWidth="0.5" lineColor="#000000"/>
            <rightPen lineWidth="0.5" lineColor="#000000"/>
        </box>
    </style>
    <style name="Crosstab_CT" mode="Opaque" backcolor="#005FB3">
        <box>
            <pen lineWidth="0.5" lineColor="#000000"/>
            <topPen lineWidth="0.5" lineColor="#000000"/>
            <leftPen lineWidth="0.5" lineColor="#000000"/>
            <bottomPen lineWidth="0.5" lineColor="#000000"/>
            <rightPen lineWidth="0.5" lineColor="#000000"/>
        </box>
    </style>
    <style name="Crosstab_CD" mode="Opaque" backcolor="#FFFFFF">
        <box>
            <pen lineWidth="0.5" lineColor="#000000"/>
            <topPen lineWidth="0.5" lineColor="#000000"/>
            <leftPen lineWidth="0.5" lineColor="#000000"/>
            <bottomPen lineWidth="0.5" lineColor="#000000"/>
            <rightPen lineWidth="0.5" lineColor="#000000"/>
        </box>
    </style>
    <subDataset name="XTabDS" uuid="9911fa6c-61b7-4952-81bf-4666e3e17fcf">
        <field name="weekStartDate" class="java.lang.Integer">
            <property name="net.sf.jasperreports.jsonql.field.expression" value="weekStartDate"/>
        </field>
        <field name="spend" class="java.lang.Integer">
            <property name="net.sf.jasperreports.jsonql.field.expression" value="spend"/>
        </field>
        <field name="name" class="java.lang.String">
            <property name="net.sf.jasperreports.jsonql.field.expression" value="^{2}.purchase.name"/>
        </field>
        <field name="location" class="java.lang.String">
            <property name="net.sf.jasperreports.jsonql.field.expression" value="^{2}.purchase.location"/>
        </field>
    </subDataset>
    <subDataset name="listSubDataset" uuid="01e76955-f29e-4d52-991b-aa0149bfdb37">
        <field name="colName" class="java.lang.String">
            <property name="net.sf.jasperreports.jsonql.field.expression" value="[0]"/>
        </field>
    </subDataset>
    <queryString language="jsonql">
        <![CDATA[]]>
    </queryString>
    <background>
        <band splitType="Stretch"/>
    </background>
    <title>
        <band height="58">
            <staticText>
                <reportElement x="140" y="10" width="280" height="30" uuid="c8e3d7ad-eeb0-4cd1-8bef-88874e6921d4"/>
                <textElement textAlignment="Center" verticalAlignment="Middle">
                    <font size="14"/>
                </textElement>
                <text><![CDATA[List inside Crosstab]]></text>
            </staticText>
        </band>
    </title>
    <pageHeader>
        <band height="35" splitType="Stretch"/>
    </pageHeader>
    <columnHeader>
        <band height="30" splitType="Stretch"/>
    </columnHeader>
    <detail>
        <band height="70" splitType="Stretch">
            <crosstab>
                <reportElement x="0" y="0" width="560" height="70" uuid="79f2afae-ac8b-4442-ac8e-ae1b1f68109f">
                    <property name="com.jaspersoft.studio.layout" value="com.jaspersoft.studio.editor.layout.VerticalRowLayout"/>
                    <property name="com.jaspersoft.studio.crosstab.style.header" value="Crosstab_CH"/>
                    <property name="com.jaspersoft.studio.crosstab.style.group" value="Crosstab_CG"/>
                    <property name="com.jaspersoft.studio.crosstab.style.total" value="Crosstab_CT"/>
                    <property name="com.jaspersoft.studio.crosstab.style.detail" value="Crosstab_CD"/>
                </reportElement>
                <crosstabParameter name="listDS" class="net.sf.jasperreports.engine.data.JsonQLDataSource">
                    <parameterValueExpression><![CDATA[((net.sf.jasperreports.engine.data.JsonQLDataSource)$P{REPORT_DATA_SOURCE}).subDataSource("header.columnName")]]></parameterValueExpression>
                </crosstabParameter>
                <crosstabDataset>
                    <dataset>
                        <datasetRun subDataset="XTabDS" uuid="73b2e155-5015-451a-8813-7e2ed2f731fb">
                            <dataSourceExpression><![CDATA[((net.sf.jasperreports.engine.data.JsonQLDataSource)$P{REPORT_DATA_SOURCE}).subDataSource("..values..weekSpend.*")]]></dataSourceExpression>
                        </datasetRun>
                    </dataset>
                </crosstabDataset>
                <crosstabHeaderCell>
                    <cellContents>
                        <componentElement>
                            <reportElement x="0" y="0" width="180" height="30" isPrintWhenDetailOverflows="true" uuid="412c6db7-0cfa-4025-80cd-8c450f9eab96">
                                <property name="net.sf.jasperreports.export.headertoolbar.table.name" value=""/>
                            </reportElement>
                            <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="Horizontal">
                                <datasetRun subDataset="listSubDataset" uuid="a911c80f-a0b3-4395-bbd7-2c52c67585d3">
                                    <dataSourceExpression><![CDATA[$P{listDS}]]></dataSourceExpression>
                                </datasetRun>
                                <jr:listContents height="30" width="90">
                                    <textField>
                                        <reportElement x="0" y="0" width="90" height="30" isPrintWhenDetailOverflows="true" uuid="168fd030-81cf-4b80-9766-6f4637c779ec"/>
                                        <box>
                                            <topPen lineWidth="0.5"/>
                                            <leftPen lineWidth="0.5"/>
                                        </box>
                                        <textElement>
                                            <paragraph leftIndent="3" spacingBefore="3"/>
                                        </textElement>
                                        <textFieldExpression><![CDATA[$F{colName}]]></textFieldExpression>
                                    </textField>
                                </jr:listContents>
                            </jr:list>
                        </componentElement>
                    </cellContents>
                </crosstabHeaderCell>
                <rowGroup name="name" width="90" totalPosition="End">
                    <bucket class="java.lang.String">
                        <bucketExpression><![CDATA[$F{name}]]></bucketExpression>
                    </bucket>
                    <crosstabRowHeader>
                        <cellContents mode="Opaque" style="Crosstab_CH">
                            <textField>
                                <reportElement x="0" y="0" width="90" height="20" uuid="e8aa37d7-0921-40a6-8aca-1cccae61d26d"/>
                                <textElement>
                                    <paragraph leftIndent="3" spacingBefore="3"/>
                                </textElement>
                                <textFieldExpression><![CDATA[$V{name}]]></textFieldExpression>
                            </textField>
                        </cellContents>
                    </crosstabRowHeader>
                    <crosstabTotalRowHeader>
                        <cellContents/>
                    </crosstabTotalRowHeader>
                </rowGroup>
                <rowGroup name="location" width="90" totalPosition="End">
                    <bucket class="java.lang.String">
                        <bucketExpression><![CDATA[$F{location}]]></bucketExpression>
                    </bucket>
                    <crosstabRowHeader>
                        <cellContents mode="Opaque" style="Crosstab_CH">
                            <textField>
                                <reportElement x="0" y="0" width="90" height="20" uuid="86107a55-79be-4170-a2ee-b2a0ae5315e2"/>
                                <textElement>
                                    <paragraph leftIndent="3" spacingBefore="3"/>
                                </textElement>
                                <textFieldExpression><![CDATA[$V{location}]]></textFieldExpression>
                            </textField>
                        </cellContents>
                    </crosstabRowHeader>
                    <crosstabTotalRowHeader>
                        <cellContents/>
                    </crosstabTotalRowHeader>
                </rowGroup>
                <columnGroup name="weekStartDate" height="30" totalPosition="End">
                    <bucket class="java.lang.Integer">
                        <bucketExpression><![CDATA[$F{weekStartDate}]]></bucketExpression>
                    </bucket>
                    <crosstabColumnHeader>
                        <cellContents mode="Opaque" style="Crosstab_CH">
                            <textField>
                                <reportElement x="0" y="0" width="90" height="30" uuid="c65fb64a-d89b-4cc3-be28-d76624cb3d93"/>
                                <textElement>
                                    <paragraph leftIndent="3" spacingBefore="3"/>
                                </textElement>
                                <textFieldExpression><![CDATA[$V{weekStartDate}]]></textFieldExpression>
                            </textField>
                        </cellContents>
                    </crosstabColumnHeader>
                    <crosstabTotalColumnHeader>
                        <cellContents/>
                    </crosstabTotalColumnHeader>
                </columnGroup>
                <measure name="spend_MEASURE" class="java.lang.Integer">
                    <measureExpression><![CDATA[$F{spend}]]></measureExpression>
                </measure>
                <crosstabCell width="90" height="20">
                    <cellContents mode="Opaque" style="Crosstab_CD">
                        <textField>
                            <reportElement x="0" y="0" width="90" height="20" uuid="efb4b6dd-d9d3-4520-a94e-c0010a572b29"/>
                            <textElement>
                                <paragraph leftIndent="3" spacingBefore="3"/>
                            </textElement>
                            <textFieldExpression><![CDATA[$V{spend_MEASURE}]]></textFieldExpression>
                        </textField>
                    </cellContents>
                </crosstabCell>
                <crosstabCell height="20" columnTotalGroup="weekStartDate">
                    <cellContents/>
                </crosstabCell>
                <crosstabCell width="90" height="0" rowTotalGroup="location">
                    <cellContents/>
                </crosstabCell>
                <crosstabCell height="0" rowTotalGroup="location" columnTotalGroup="weekStartDate">
                    <cellContents/>
                </crosstabCell>
                <crosstabCell width="90" height="20" rowTotalGroup="name">
                    <cellContents/>
                </crosstabCell>
                <crosstabCell height="20" rowTotalGroup="name" columnTotalGroup="weekStartDate">
                    <cellContents/>
                </crosstabCell>
            </crosstab>
        </band>
    </detail>
    <columnFooter>
        <band height="45" splitType="Stretch"/>
    </columnFooter>
    <pageFooter>
        <band height="54" splitType="Stretch"/>
    </pageFooter>
    <summary>
        <band height="42" splitType="Stretch"/>
    </summary>
</jasperReport>

with the following output:



标签： json jasper-reports crosstab
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