Jaspersoft studio json data adapter book or subreport document is Empty

Posted on October 10, 2018 at 6:04am

I am trying to do something really simple yet after searching for the past few days I could not find an answer, I need some help on this one.

What I am trying to do:
I have multiple reports so A4 portrait some landscape, some with just static text some with tables, some with tables and variables and I want to put merge them together.

They work 100% individually.

Tried to make a master report with subreports did not work, tried the book approach did not work, I always get Document is empty, or if I try to manipulate the data query I get all kind of weird stuff.

Now I will try to make this example as simple as possible.

JSON data: (New data Adapter)

    {
      "name": "Sample Name",
      "people":[
        {
          "who": "Person 1"
        },
        {
          "who": "Person 2"
        },
        {
          "who": "Person 3"
        }
      ]
    }

Book master report:

    <?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="Empty_Book" pageWidth="595" pageHeight="842" sectionType="Part" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="30" bottomMargin="30" uuid="d2716064-8ae4-40cf-a575-33afba400e3a">
        <property name="com.jaspersoft.studio.data.defaultdataadapter" value="New Data Adapter "/>
        <property name="net.sf.jasperreports.print.create.bookmarks" value="true"/>
        <queryString language="json">
            <![CDATA[]]>
        </queryString>
        <detail>
            <part uuid="69d6ca13-26f6-425f-bff9-395c5b9c183b">
                <p:subreportPart xmlns:p="http://jasperreports.sourceforge.net/jasperreports/parts" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports/parts http://jasperreports.sourceforge.net/xsd/parts.xsd">
                    <subreportParameter name="REPORT_CONNECTION">
                        <subreportParameterExpression><![CDATA[$P{REPORT_CONNECTION}]]></subreportParameterExpression>
                    </subreportParameter>
                    <subreportExpression><![CDATA["Blank_A4_2.jasper"]]></subreportExpression>
                </p:subreportPart>
            </part>
            <part uuid="055c9f89-88b4-4270-b6ef-addb2eac3e56">
                <p:subreportPart xmlns:p="http://jasperreports.sourceforge.net/jasperreports/parts" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports/parts http://jasperreports.sourceforge.net/xsd/parts.xsd">
                    <subreportParameter name="REPORT_CONNECTION">
                        <subreportParameterExpression><![CDATA[$P{REPORT_CONNECTION}]]></subreportParameterExpression>
                    </subreportParameter>
                    <subreportExpression><![CDATA["Blank_A4_Landscape_1.jasper"]]></subreportExpression>
                </p:subreportPart>
            </part>
        </detail>
    </jasperReport>

Blank_A4_2.jrxml

  <?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="Blank_A4_2" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="bd2bd70c-5a0d-4c3f-b81d-4d5d7731153d">
        <property name="com.jaspersoft.studio.data.defaultdataadapter" value="New Data Adapter "/>
        <queryString language="json">
            <![CDATA[]]>
        </queryString>
        <field name="name" class="java.lang.String">
            <property name="net.sf.jasperreports.json.field.expression" value="name"/>
            <fieldDescription><![CDATA[name]]></fieldDescription>
        </field>
        <background>
            <band splitType="Stretch"/>
        </background>
        <detail>
            <band height="125" splitType="Stretch">
                <textField>
                    <reportElement x="150" y="30" width="100" height="30" uuid="eef5f1dc-3d96-4008-8321-ef0be92d42d4"/>
                    <textFieldExpression><![CDATA[$F{name}]]></textFieldExpression>
                </textField>
                <staticText>
                    <reportElement x="50" y="30" width="100" height="30" uuid="cbe6173f-5399-45ec-926b-ff6f48b4fb0c"/>
                    <text><![CDATA[name]]></text>
                </staticText>
            </band>
        </detail>
    </jasperReport>

Blank_A4_Landscape_1.jrxml

 <?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="Blank_A4_Landscape_1" pageWidth="842" pageHeight="595" orientation="Landscape" columnWidth="802" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="62f06d09-42b5-4471-baa5-5aed60cc5fc4">
        <property name="com.jaspersoft.studio.data.defaultdataadapter" value="New Data Adapter "/>
        <subDataset name="Dataset1" uuid="eb54ec0d-0c60-44af-8476-e44f40560dee">
            <property name="com.jaspersoft.studio.data.defaultdataadapter" value="New Data Adapter "/>
            <queryString language="json">
                <![CDATA[people]]>
            </queryString>
            <field name="who" class="java.lang.String">
                <property name="net.sf.jasperreports.json.field.expression" value="who"/>
                <fieldDescription><![CDATA[who]]></fieldDescription>
            </field>
        </subDataset>
        <queryString language="JSON">
            <![CDATA[]]>
        </queryString>
        <field name="name" class="java.lang.String">
            <property name="net.sf.jasperreports.json.field.expression" value="name"/>
            <fieldDescription><![CDATA[name]]></fieldDescription>
        </field>
        <background>
            <band splitType="Stretch"/>
        </background>
        <columnHeader>
            <band height="175">
                <textField>
                    <reportElement x="132" y="81" width="100" height="30" uuid="5cce1f44-2a8b-42ad-a03d-4c294f02d31c"/>
                    <textFieldExpression><![CDATA[$F{name}]]></textFieldExpression>
                </textField>
            </band>
        </columnHeader>
        <detail>
            <band height="140" splitType="Stretch">
                <componentElement>
                    <reportElement x="110" y="45" width="200" height="40" uuid="75a06812-f9a0-4b0f-9a08-efec60d0b555"/>
                    <jr:table xmlns:jr="http://jasperreports.sourceforge.net/jasperreports/components" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports/components http://jasperreports.sourceforge.net/xsd/components.xsd">
                        <datasetRun subDataset="Dataset1" uuid="acd62160-c07c-4c00-b6b4-9ef001d1585d">
                            <dataSourceExpression><![CDATA[((net.sf.jasperreports.engine.data.JsonDataSource)$P{REPORT_DATA_SOURCE}).subDataSource("people")]]></dataSourceExpression>
                        </datasetRun>
                        <jr:column width="200" uuid="253a610c-a780-4690-8cce-8a03597ef016">
                            <jr:detailCell height="30">
                                <textField>
                                    <reportElement x="0" y="0" width="200" height="30" uuid="910a7e24-c02b-4b21-8c9d-6a3dfda21794"/>
                                    <textFieldExpression><![CDATA[$F{who}]]></textFieldExpression>
                                </textField>
                            </jr:detailCell>
                        </jr:column>
                    </jr:table>
                </componentElement>
            </band>
        </detail>
    </jasperReport>

Tested all files before posting, individually they work, I have no params to send to the subreports, I tried looping over the array and still nothing I always get document is Empty no matter what I do.

iReport Designer