无法渲染JSON的JasperReport与多个细节记录。

Question

我们正试图通过JSON建立一个JasperReport来进行估算。头和行（多行）都很好。但是，JSON文件中还有一个节点需要在详细表中进行循环。我们使用subdataset无法实现。目前，我们使用JSONQL来迭代行。

我们无法循环使用 taxes 节点通过子数据集。

以下是JSON输入的示例。

    { "tax": [ { "tax_slab_name": "VAT Exempt", "tax_amount": "AED 20.00"        }, { "tax_slab_name": "VAT 0%", "tax_amount": "30.00阿联酋迪拉姆"        }, { "tax_slab_name": "VAT 5 %", "tax_amount": "50.00阿联酋迪拉姆"        }      ], "header": [ { "stimate_no": "EST-000054", "bill_to_address", "111 Stamm Cliffs Suite 285, Heaney Ville, Jebel Ali, Dubai, United Arab Emirates (UAE)", "ship_to_address": "111 Stamm Cliffs Suite 285, Heaney Ville, Jebel Ali, Dubai, United Arab Emirates (UAE)", "ship_to_address": "66015 شارع بلال السهلي, ممر ميسر مدني, Jebel Ali, Dubai, United Arab Emirates (UAE)", "important_date": "2020-05-08", "expiredy_date": "2020-05-23", "sub_total": 14000, "discount": 0, "tax_amt": 450, "total": 14450, "conditions": "除非另有说明，否则所有费用都以美元为单位。E.和O.E.", "状态": "SAVED", "contact_name": "Kerluke, Bartell and Dickinson (مجموعة الداوود وأولاده)"        }      ], "行"。[ { "item_name": "企业产品开发-JavaJSFPF", "tax_slab": 1, "uom": "box", "数量": 1, "税率": 1000, "金额": 1000 }, { "item_name": "服务器设置", "税率": 2, "数量": 1, "税率": 1000, "金额": 1000 }, { "item_name": "Server Setup", "tax_slab": 2, "uom": "cm", "数量": 2, "税率": 2000, "金额": 4000 }, { "item_name": "备份和灾难恢复服务", "tax_slab": 2, "uom": "cm", "数量": 2, "税率": 2000, "金额": 4000 }      ]    }

数据源类型。JSONQL

JasperReport版本: 6.12.2 (最新)

Answer 1

不要紧。用sub-data-set搞定了。

   <subDataset name="TaxSDS" uuid="1701ce05-88ab-4435-85c5-3ad38e0b941b">
        <queryString language="jsonql">
            <![CDATA[..taxes]]>
        </queryString>
        <field name="tax_slab_name" class="java.lang.String">
            <property name="net.sf.jasperreports.jsonql.field.expression" value="tax_slab_name"/>
            <fieldDescription><![CDATA[Tax Slabs]]></fieldDescription>
        </field>
        <field name="tax_slab_amt" class="java.lang.String">
            <property name="net.sf.jasperreports.jsonql.field.expression" value="tax_amount"/>
            <fieldDescription><![CDATA[Tax Amount]]></fieldDescription>
        </field>
    </subDataset>
    <subDataset name="LinesSDS" uuid="1701ce05-88ab-4435-85c5-3ad38e0b941b">
        <queryString language="jsonql">
            <![CDATA[..lines]]>
        </queryString>
        <field name="item_name" class="java.lang.String">
            <property name="net.sf.jasperreports.jsonql.field.expression" value="item_name"/>
            <fieldDescription><![CDATA[Item]]></fieldDescription>
        </field>
        <field name="uom" class="java.lang.String">
            <property name="net.sf.jasperreports.jsonql.field.expression" value="uom"/>
            <fieldDescription><![CDATA[UOM]]></fieldDescription>
        </field>
    </subDataset>
    <queryString language="jsonql">
        <![CDATA[]]>
    </queryString>
    <field name="invoiceNo" class="java.lang.String">
        <property name="net.sf.jasperreports.jsonql.field.expression" value="header.estimate_no"/>
        <fieldDescription><![CDATA[Estimate No]]></fieldDescription>
    </field>