How to create multiple tables in jasper report using json as a datasource?

Question

I need to make report like this:

Product Name : Product XYZ

---------------------------------
| Item Name | Quantity | Price |
-----------------------------         


        

Answer 1

The structure will be

1. Main report with query produkList.items that display's Product Name
2. Subreport in detail band with <dataSourceExpression><![CDATA[((net.sf.jasperreports.engine.data.JsonDataSource)$P{REPORT_DATA_SOURCE}).subDataSource("itemList")]]></dataSourceExpression> to display the item table
3. Subreport in summary band with query produkList.summary.summaryReportDetailList to display the summary table

This is the result

Below you will find the 3 jrxml producing this result, you need to adjust the path to the json source and path to subreport's, don't forget that subreport's need to be compiled in .jasper before main report can be run.

Main report

<?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="multitable" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="1c6dc1c9-67af-43d5-bf1e-9243557c8048">
<property name="net.sf.jasperreports.json.source" value="C:/jdd/projects/StackTrace/jasper/multitable.json"/>
<parameter name="SUBREPORT_DIR" class="java.lang.String" isForPrompting="false">
    <defaultValueExpression><![CDATA["C:\\jdd\\projects\\StackTrace\\jasper\\"]]></defaultValueExpression>
</parameter>
<queryString language="json">
    <![CDATA[produkList.items]]>
</queryString>
<field name="nameProduct" class="java.lang.String"/>
<detail>
    <band height="48" splitType="Stretch">
        <textField>
            <reportElement x="0" y="1" width="555" height="20" uuid="4dfdf5e5-436e-4538-b302-620ea945c6e7"/>
            <textElement verticalAlignment="Middle"/>
            <textFieldExpression><![CDATA["Product Name : " + $F{nameProduct}]]></textFieldExpression>
        </textField>
        <subreport>
            <reportElement x="0" y="21" width="555" height="20" uuid="48a7bbe4-b8ce-4a0d-a6e1-6ffffd288e5602"/>
            <dataSourceExpression><![CDATA[((net.sf.jasperreports.engine.data.JsonDataSource)$P{REPORT_DATA_SOURCE}).subDataSource("itemList")]]></dataSourceExpression>
            <subreportExpression><![CDATA[$P{SUBREPORT_DIR} + "multitable_subreport.jasper"]]></subreportExpression>
        </subreport>
    </band>
</detail>
<summary>
    <band height="52" splitType="Stretch">
        <subreport>
            <reportElement x="0" y="10" width="555" height="32" uuid="780a1f25-065e-494a-ba1d-86a33b464343"/>
            <subreportParameter name="net.sf.jasperreports.json.source">
                <subreportParameterExpression><![CDATA["C:/jdd/projects/StackTrace/jasper/multitable.json"]]></subreportParameterExpression>
            </subreportParameter>
            <subreportExpression><![CDATA[$P{SUBREPORT_DIR} + "multitable_summary.jasper"]]></subreportExpression>
        </subreport>
    </band>
</summary>
</jasperReport>

Subreport in detail band multitable_subreport.jrxml

<?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="multitable_subreport" pageWidth="555" pageHeight="802" columnWidth="555" leftMargin="0" rightMargin="0" topMargin="0" bottomMargin="0" uuid="678bf408-397f-4797-bb50-84262b9df76b">
<field name="itemName" class="java.lang.String"/>
<field name="quantity" class="java.lang.Double"/>
<field name="price" class="java.lang.Double"/>
<columnHeader>
    <band height="20" splitType="Stretch">
        <staticText>
            <reportElement mode="Opaque" x="0" y="0" width="100" height="20" backcolor="#CCCCCC" uuid="af654b95-0a60-40fc-80c6-df38cc28061c"/>
            <box>
                <pen lineWidth="0.25"/>
                <topPen lineWidth="0.25"/>
                <leftPen lineWidth="0.25"/>
                <bottomPen lineWidth="0.25"/>
                <rightPen lineWidth="0.25"/>
            </box>
            <textElement verticalAlignment="Middle"/>
            <text><![CDATA[itemName]]></text>
        </staticText>
        <staticText>
            <reportElement mode="Opaque" x="100" y="0" width="100" height="20" backcolor="#CCCCCC" uuid="7969463f-0569-4863-bbc3-a87364369a0f"/>
            <box>
                <pen lineWidth="0.25"/>
                <topPen lineWidth="0.25"/>
                <leftPen lineWidth="0.25"/>
                <bottomPen lineWidth="0.25"/>
                <rightPen lineWidth="0.25"/>
            </box>
            <textElement textAlignment="Center" verticalAlignment="Middle"/>
            <text><![CDATA[quantity]]></text>
        </staticText>
        <staticText>
            <reportElement mode="Opaque" x="200" y="0" width="100" height="20" backcolor="#CCCCCC" uuid="86942d20-9a68-4409-8907-8abcfef1c82e"/>
            <box>
                <pen lineWidth="0.25"/>
                <topPen lineWidth="0.25"/>
                <leftPen lineWidth="0.25"/>
                <bottomPen lineWidth="0.25"/>
                <rightPen lineWidth="0.25"/>
            </box>
            <textElement textAlignment="Center" verticalAlignment="Middle"/>
            <text><![CDATA[price]]></text>
        </staticText>
    </band>
</columnHeader>
<detail>
    <band height="20" splitType="Stretch">
        <textField>
            <reportElement x="0" y="0" width="100" height="20" uuid="2b991eb1-6e24-4e74-8ee2-cd90fe07f60a"/>
            <box>
                <pen lineWidth="0.25"/>
                <topPen lineWidth="0.25"/>
                <leftPen lineWidth="0.25"/>
                <bottomPen lineWidth="0.25"/>
                <rightPen lineWidth="0.25"/>
            </box>
            <textElement verticalAlignment="Middle"/>
            <textFieldExpression><![CDATA[$F{itemName}]]></textFieldExpression>
        </textField>
        <textField pattern="###0.##">
            <reportElement x="100" y="0" width="100" height="20" uuid="71929061-2351-477c-8d2d-431c846f8a06"/>
            <box>
                <pen lineWidth="0.25"/>
                <topPen lineWidth="0.25"/>
                <leftPen lineWidth="0.25"/>
                <bottomPen lineWidth="0.25"/>
                <rightPen lineWidth="0.25"/>
            </box>
            <textElement textAlignment="Center" verticalAlignment="Middle"/>
            <textFieldExpression><![CDATA[$F{quantity}]]></textFieldExpression>
        </textField>
        <textField pattern="¤ #,##0.00">
            <reportElement x="200" y="0" width="100" height="20" uuid="16b99246-d1f5-4c96-90db-34ea5f3141db"/>
            <box>
                <pen lineWidth="0.25"/>
                <topPen lineWidth="0.25"/>
                <leftPen lineWidth="0.25"/>
                <bottomPen lineWidth="0.25"/>
                <rightPen lineWidth="0.25"/>
            </box>
            <textElement textAlignment="Center" verticalAlignment="Middle"/>
            <textFieldExpression><![CDATA[$F{price}]]></textFieldExpression>
        </textField>
    </band>
</detail>
</jasperReport>

Subreport in summary band multitable_summary.jrxml

<?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="multitable_summary" pageWidth="555" pageHeight="802" columnWidth="555" leftMargin="0" rightMargin="0" topMargin="0" bottomMargin="0" uuid="2a869c20-1e7d-4baa-92d7-c8d555f1f344">
<queryString language="json">
    <![CDATA[produkList.summary.summaryReportDetailList]]>
</queryString>
<field name="nameProduct" class="java.lang.String"/>
<field name="quantity" class="java.lang.Double"/>
<background>
    <band splitType="Stretch"/>
</background>
<title>
    <band height="23">
        <staticText>
            <reportElement x="0" y="0" width="100" height="20" uuid="a9730039-8418-4e58-a2eb-0babe8d2a380"/>
            <text><![CDATA[Summary Report]]></text>
        </staticText>
    </band>
</title>
<columnHeader>
    <band height="20">
        <staticText>
            <reportElement mode="Opaque" x="0" y="0" width="100" height="20" backcolor="#CCCCCC" uuid="a49b18ef-63c3-42bb-ae81-8d7d72ac9086"/>
            <box leftPadding="0">
                <pen lineWidth="0.25"/>
                <topPen lineWidth="0.25"/>
                <leftPen lineWidth="0.25"/>
                <bottomPen lineWidth="0.25"/>
                <rightPen lineWidth="0.25"/>
            </box>
            <textElement verticalAlignment="Middle"/>
            <text><![CDATA[Product Name]]></text>
        </staticText>
        <staticText>
            <reportElement mode="Opaque" x="100" y="0" width="100" height="20" backcolor="#CCCCCC" uuid="c1c70fed-d887-429f-a3b0-ed645517e41f"/>
            <box leftPadding="0">
                <pen lineWidth="0.25"/>
                <topPen lineWidth="0.25"/>
                <leftPen lineWidth="0.25"/>
                <bottomPen lineWidth="0.25"/>
                <rightPen lineWidth="0.25"/>
            </box>
            <textElement textAlignment="Center" verticalAlignment="Middle"/>
            <text><![CDATA[quantity]]></text>
        </staticText>
    </band>
</columnHeader>
<detail>
    <band height="20" splitType="Stretch">
        <textField>
            <reportElement x="0" y="0" width="100" height="20" uuid="401436b3-d9a1-40bd-8a1d-dfa3f162f842"/>
            <box leftPadding="0">
                <pen lineWidth="0.25"/>
                <topPen lineWidth="0.25"/>
                <leftPen lineWidth="0.25"/>
                <bottomPen lineWidth="0.25"/>
                <rightPen lineWidth="0.25"/>
            </box>
            <textElement verticalAlignment="Middle"/>
            <textFieldExpression><![CDATA[$F{nameProduct}]]></textFieldExpression>
        </textField>
        <textField pattern="###0">
            <reportElement x="100" y="0" width="100" height="20" uuid="4447d3b0-6d3e-4795-8b5f-6a09d620448b"/>
            <box leftPadding="0">
                <pen lineWidth="0.25"/>
                <topPen lineWidth="0.25"/>
                <leftPen lineWidth="0.25"/>
                <bottomPen lineWidth="0.25"/>
                <rightPen lineWidth="0.25"/>
            </box>
            <textElement textAlignment="Center" verticalAlignment="Middle"/>
            <textFieldExpression><![CDATA[$F{quantity}]]></textFieldExpression>
        </textField>
    </band>
</detail>
</jasperReport>