Ответ 1
Это полный пример загрузки json из HTTP-запроса через java (вы можете добавлять заголовки, как вам нравится), используя подчиненный отчет, чтобы передать
data
node какsubDataSource
Пример URL: http://www.jdd.it/so/jsonTest.json * Ваш json доступен на этом URL
Основной отчет (jsonMain.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="JsonMain" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="15289120-bdf0-4edd-905c-647999c3c0cc">
<property name="com.jaspersoft.studio.data.defaultdataadapter" value="json"/>
<parameter name="SUBREPORT_DIR" class="java.lang.String" isForPrompting="false">
<defaultValueExpression><![CDATA["C:\\jdd\\..path..to..subreport\\"]]></defaultValueExpression>
</parameter>
<queryString language="JSON">
<![CDATA[]]>
</queryString>
<field name="comp_name" class="java.lang.String">
<fieldDescription><![CDATA[comp_name]]></fieldDescription>
</field>
<field name="title" class="java.lang.String">
<fieldDescription><![CDATA[title]]></fieldDescription>
</field>
<field name="status" class="java.lang.String">
<fieldDescription><![CDATA[status]]></fieldDescription>
</field>
<detail>
<band height="40">
<staticText>
<reportElement x="0" y="0" width="115" height="20" uuid="023be3f7-66fc-4718-9ca3-220c16ddc97a"/>
<textElement verticalAlignment="Middle">
<font size="14" isBold="true"/>
</textElement>
<text><![CDATA[Company name:]]></text>
</staticText>
<textField>
<reportElement x="115" y="0" width="103" height="20" uuid="15aadf03-03a1-4c05-8bf9-cdf7db09153c"/>
<textElement verticalAlignment="Middle">
<font size="14" isBold="true"/>
</textElement>
<textFieldExpression><![CDATA[$F{comp_name}]]></textFieldExpression>
</textField>
<subreport>
<reportElement x="0" y="20" width="555" height="20" uuid="c8251ce1-5de4-476f-a4cc-89717d422cc7"/>
<dataSourceExpression><![CDATA[((net.sf.jasperreports.engine.data.JsonDataSource)$P{REPORT_DATA_SOURCE}).subDataSource("data")]]></dataSourceExpression>
<subreportExpression><![CDATA[$P{SUBREPORT_DIR} + "jsonMain_subreport.jasper"]]></subreportExpression>
</subreport>
<staticText>
<reportElement x="218" y="0" width="39" height="20" uuid="4c8d8333-117a-4447-98ac-bfebbd28776a"/>
<textElement verticalAlignment="Middle">
<font size="14" isBold="true"/>
</textElement>
<text><![CDATA[Title:]]></text>
</staticText>
<textField>
<reportElement x="257" y="0" width="154" height="20" uuid="0f266993-1bf3-41cf-8db6-c8b5aaccef74"/>
<textElement verticalAlignment="Middle">
<font size="14" isBold="true"/>
</textElement>
<textFieldExpression><![CDATA[$F{title}]]></textFieldExpression>
</textField>
<staticText>
<reportElement x="411" y="0" width="51" height="20" uuid="9afd4de9-5155-43a6-ae63-337bb77deac8"/>
<textElement verticalAlignment="Middle">
<font size="14" isBold="true"/>
</textElement>
<text><![CDATA[Status:]]></text>
</staticText>
<textField>
<reportElement x="462" y="0" width="93" height="20" uuid="6e8ab3b0-c8eb-40f4-ade8-9dd60e34a721"/>
<textElement verticalAlignment="Middle">
<font size="14" isBold="true"/>
</textElement>
<textFieldExpression><![CDATA[$F{status}]]></textFieldExpression>
</textField>
</band>
</detail>
</jasperReport>
Ключ к
subDataSource
data
node((net.sf.jasperreports.engine.data.JsonDataSource)$P{REPORT_DATA_SOURCE}).subDataSource("data")
и передать это в подчиненный
Subreport (jsonMain_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="jsonMain_subreport" language="java" pageWidth="555" pageHeight="802" columnWidth="555" leftMargin="0" rightMargin="0" topMargin="0" bottomMargin="0" uuid="9c681432-4547-4fd8-91c1-5634ca368da6">
<field name="no" class="java.lang.String"/>
<field name="name" class="java.lang.String"/>
<field name="address" class="java.lang.String"/>
<columnHeader>
<band height="20" splitType="Stretch">
<staticText>
<reportElement mode="Opaque" x="0" y="0" width="100" height="20" backcolor="#CCCCCC" uuid="3dbc394e-6a5a-45d2-8d53-c9880f3974e7"/>
<box leftPadding="2" rightPadding="2">
<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[No]]></text>
</staticText>
<staticText>
<reportElement mode="Opaque" x="100" y="0" width="167" height="20" backcolor="#CCCCCC" uuid="2c40967a-42d5-439e-a1c3-5d41fd50f906"/>
<box leftPadding="2" rightPadding="2">
<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[Name]]></text>
</staticText>
<staticText>
<reportElement mode="Opaque" x="267" y="0" width="288" height="20" backcolor="#CCCCCC" uuid="0d72063d-6354-4e8d-9f89-52d00d100d3e"/>
<box leftPadding="2" rightPadding="2">
<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[Address]]></text>
</staticText>
</band>
</columnHeader>
<detail>
<band height="20" splitType="Stretch">
<textField>
<reportElement x="0" y="0" width="100" height="20" uuid="e9cc4829-5e9a-4747-a594-489b6230713c"/>
<box leftPadding="2" rightPadding="2">
<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[$F{no}]]></textFieldExpression>
</textField>
<textField>
<reportElement x="100" y="0" width="167" height="20" uuid="1c02f144-1c6c-4704-9bfb-13ac39007841"/>
<box leftPadding="2" rightPadding="2">
<pen lineWidth="0.25"/>
<topPen lineWidth="0.25"/>
<leftPen lineWidth="0.25"/>
<bottomPen lineWidth="0.25"/>
<rightPen lineWidth="0.25"/>
</box>
<textElement verticalAlignment="Middle"/>
<textFieldExpression><![CDATA[$F{name}]]></textFieldExpression>
</textField>
<textField>
<reportElement x="267" y="0" width="288" height="20" uuid="e0b9aff3-c8e3-4895-90a2-339ffb7c856f"/>
<box leftPadding="2" rightPadding="2">
<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{address}]]></textFieldExpression>
</textField>
</band>
</detail>
</jasperReport>
Ничего особенного в этом отчете, поля соответствуют полям в вашем
data
node, не забудьте скомпилировать subreport до.jasper
перед запуском java-кода, так как.jasper
указывается в основном отчете.
Код Java
//Get our main report
JasperReport report = JasperCompileManager.compileReport("jsonMain.jrxml");
//Open url connection
URLConnection urlConn = new URL("http://www.jdd.it/so/jsonTest.json").openConnection();
//set some cookies
urlConn.setRequestProperty("Cookie", "cookie1=hello; cookie2=world");
//Get the stream
try (InputStream is =urlConn.getInputStream()) {
Map<String, Object> parametersMap = new HashMap<>();
//Pass to parameter map
parametersMap.put(JsonQueryExecuterFactory.JSON_INPUT_STREAM, is);
//Fill report
JasperPrint jasperPrint = JasperFillManager.fillReport(report, parametersMap);
//Export to pdf
JRPdfExporter exporter = new JRPdfExporter();
exporter.setExporterInput(new SimpleExporterInput(jasperPrint));
exporter.setExporterOutput(new SimpleOutputStreamExporterOutput("json.pdf"));
SimplePdfExporterConfiguration configuration = new SimplePdfExporterConfiguration();
configuration.setMetadataAuthor("Me");
exporter.setConfiguration(configuration);
exporter.exportReport();
}