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java - Jasper 子报表在标题带中嵌入时仅显示来自 JSON 数据源的一个条目

转载 作者:行者123 更新时间:2023-11-30 10:39:10 26 4
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我在主报表标题栏中的子报表中填充数据时遇到问题。数据在主报表的详细信息带中的子报表中正确填充。我试图找出 JSON 查询中可能出现的问题。感谢您的帮助。

enter image description here

JSON 示例数据源 (expenses.json)

{
"expenses": {
"date": "8 Sep 2016",
"accounts": [
{
"title": "XYZ Corp (111)",
"accountName": "XYZ Corp",
"accountNumber": "111",
"transactions": [
{
"date": "21 Jun 2016",
"name": "gas",
"price": "17.50"
},
{
"date": "12 May 2016",
"name": "shopping",
"price": "111.99"
},
{
"date": "30 Apr 2016",
"name": "movies",
"price": "7.50"
}
]
},
{
"title": "ABC Corp (222)",
"accountName": "ABC Corp",
"accountNumber": "222",
"transactions": [
{
"date": "2 Jun 2016",
"name": "coffee",
"price": "3.25"
},
{
"date": "21 May 2016",
"name": "tea",
"price": "1.90"
},
{
"date": "20 Apr 2016",
"name": "juice",
"price": "4.50"
}
]
}
]
}
}

主报告(main.jrxml)

<?xml version="1.0" encoding="UTF-8"?>
<!-- Created with Jaspersoft Studio version 6.3.0.final using JasperReports Library version 6.3.0 -->
<!-- 2016-09-08T14:41:09 -->
<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="expenses_main" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="8cf0f1cb-ccad-41ba-aa8a-44abd597de54">
<property name="com.jaspersoft.studio.data.defaultdataadapter" value="expenses json data"/>
<queryString language="json">
<![CDATA[expenses.accounts]]>
</queryString>
<field name="title" class="java.lang.String">
<fieldDescription><![CDATA[title]]></fieldDescription>
</field>
<field name="date" class="java.lang.String">
<fieldDescription><![CDATA[expenses.date]]></fieldDescription>
</field>
<background>
<band splitType="Stretch"/>
</background>
<title>
<band height="71" splitType="Stretch">
<staticText>
<reportElement x="2" y="0" width="201" height="16" uuid="2e947a01-8b6b-4169-beaa-6b2dac0d4141"/>
<text><![CDATA[Expense Report]]></text>
</staticText>
<subreport>
<reportElement x="2" y="44" width="550" height="22" uuid="1d364987-9047-4660-bd58-8a2bcfc8493d"/>
<dataSourceExpression><![CDATA[((net.sf.jasperreports.engine.data.JsonDataSource)$P{REPORT_DATA_SOURCE}).subDataSource()]]></dataSourceExpression>
<subreportExpression><![CDATA["/Users/arul/JaspersoftWorkspaceV2/reports/sub1.jasper"]]></subreportExpression>
</subreport>
<textField>
<reportElement x="442" y="0" width="100" height="16" uuid="1cfbe11b-4f85-4bad-9280-d8712b80a65c"/>
<textFieldExpression><![CDATA[$F{date}]]></textFieldExpression>
</textField>
<staticText>
<reportElement x="410" y="1" width="31" height="15" uuid="ee159651-5d7b-4e0e-a52a-cb71338891cc"/>
<text><![CDATA[Date: ]]></text>
</staticText>
</band>
</title>
<detail>
<band height="54" splitType="Stretch">
<textField>
<reportElement x="2" y="10" width="550" height="20" uuid="3b6e1d4b-2a58-4684-b334-396807db1169"/>
<textFieldExpression><![CDATA["Transactions for " + $F{title}]]></textFieldExpression>
</textField>
<subreport>
<reportElement x="2" y="30" width="545" height="20" uuid="10fde2aa-2b0b-4c1c-90d5-410f2fb9369b"/>
<dataSourceExpression><![CDATA[((net.sf.jasperreports.engine.data.JsonDataSource)$P{REPORT_DATA_SOURCE}).subDataSource("transactions")]]></dataSourceExpression>
<subreportExpression><![CDATA["/Users/arul/JaspersoftWorkspaceV2/reports/sub2.jasper"]]></subreportExpression>
</subreport>
</band>
</detail>
</jasperReport>

子报表 1 (sub1.jrxml)

<?xml version="1.0" encoding="UTF-8"?>
<!-- Created with Jaspersoft Studio version 6.3.0.final using JasperReports Library version 6.3.0 -->
<!-- 2016-09-08T14:43:35 -->
<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="expenses_summary" pageWidth="555" pageHeight="802" columnWidth="555" leftMargin="0" rightMargin="0" topMargin="0" bottomMargin="0" uuid="d8ef4ad1-3a01-4394-a78c-17f9d95f98de">
<property name="com.jaspersoft.studio.data.defaultdataadapter" value="expenses json data"/>
<queryString language="JSON">
<![CDATA[expenses.accounts]]>
</queryString>
<field name="accountName" class="java.lang.String">
<fieldDescription><![CDATA[accountName]]></fieldDescription>
</field>
<field name="accountNumber" class="java.lang.String">
<fieldDescription><![CDATA[accountNumber]]></fieldDescription>
</field>
<background>
<band splitType="Stretch"/>
</background>
<title>
<band height="21">
<staticText>
<reportElement x="0" y="0" width="100" height="20" uuid="258b2395-7fd1-4df0-b000-e2bfd2620fab"/>
<textElement>
<font isBold="true"/>
</textElement>
<text><![CDATA[Account Summary]]></text>
</staticText>
</band>
</title>
<columnHeader>
<band height="21" splitType="Stretch">
<staticText>
<reportElement mode="Opaque" x="0" y="0" width="100" height="20" backcolor="#DBD7D7" uuid="b04ff630-de8e-4a9b-9ea0-d402d4734ae7"/>
<box>
<topPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
<leftPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
<bottomPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
<rightPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
</box>
<text><![CDATA[Account Name]]></text>
</staticText>
<staticText>
<reportElement mode="Opaque" x="100" y="0" width="100" height="20" backcolor="#DBD7D7" uuid="6f0d406e-8d99-4364-888c-38bc6c0fa8c6"/>
<box>
<topPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
<leftPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
<bottomPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
<rightPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
</box>
<text><![CDATA[Account Number]]></text>
</staticText>
</band>
</columnHeader>
<detail>
<band height="21" splitType="Stretch">
<textField>
<reportElement x="0" y="0" width="100" height="20" uuid="c140795a-02a5-4334-9c5f-dc50e8a8ff6f"/>
<box>
<topPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
<leftPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
<bottomPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
<rightPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
</box>
<textFieldExpression><![CDATA[$F{accountName}]]></textFieldExpression>
</textField>
<textField>
<reportElement x="100" y="0" width="100" height="20" uuid="ac7a5340-4c86-45d2-a932-b7b0e347a421"/>
<box>
<topPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
<leftPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
<bottomPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
<rightPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
</box>
<textFieldExpression><![CDATA[$F{accountNumber}]]></textFieldExpression>
</textField>
</band>
</detail>
</jasperReport>

子报表 2 (sub2.jrxml)

<?xml version="1.0" encoding="UTF-8"?>
<!-- Created with Jaspersoft Studio version 6.3.0.final using JasperReports Library version 6.3.0 -->
<!-- 2016-09-08T14:43:55 -->
<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="expenses_subreport" pageWidth="555" pageHeight="802" columnWidth="555" leftMargin="0" rightMargin="0" topMargin="0" bottomMargin="0" uuid="2e39bfaf-e964-4b5d-847e-6517de5718d4">
<field name="date" class="java.lang.String"/>
<field name="name" class="java.lang.String"/>
<field name="price" class="java.lang.String"/>
<background>
<band splitType="Stretch"/>
</background>
<columnHeader>
<band height="20" splitType="Stretch">
<staticText>
<reportElement mode="Opaque" x="0" y="0" width="100" height="20" backcolor="#DBD7D7" uuid="8e073b78-91de-4819-886a-2527d5634067"/>
<box>
<topPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
<leftPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
<bottomPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
<rightPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
</box>
<textElement>
<font isBold="true"/>
</textElement>
<text><![CDATA[Date]]></text>
</staticText>
<staticText>
<reportElement mode="Opaque" x="100" y="0" width="100" height="20" backcolor="#DBD7D7" uuid="e7e7d858-05eb-4fda-9ae6-d998b4a51fd8"/>
<box>
<topPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
<leftPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
<bottomPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
<rightPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
</box>
<textElement>
<font isBold="true"/>
</textElement>
<text><![CDATA[Name]]></text>
</staticText>
<staticText>
<reportElement mode="Opaque" x="200" y="0" width="100" height="20" backcolor="#DBD7D7" uuid="fef220d6-4f85-4fd7-8017-5b64aff64666"/>
<box>
<topPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
<leftPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
<bottomPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
<rightPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
</box>
<textElement>
<font isBold="true"/>
</textElement>
<text><![CDATA[Price]]></text>
</staticText>
</band>
</columnHeader>
<detail>
<band height="20" splitType="Stretch">
<textField>
<reportElement x="0" y="0" width="100" height="20" uuid="fd021427-d26c-4c9c-8c71-c9f136f11a66"/>
<box>
<topPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
<leftPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
<bottomPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
<rightPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
</box>
<textFieldExpression><![CDATA[$F{date}]]></textFieldExpression>
</textField>
<textField>
<reportElement x="100" y="0" width="100" height="20" uuid="b6cd9815-ba45-49dd-be46-60a6a835d3fd"/>
<box>
<topPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
<leftPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
<bottomPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
<rightPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
</box>
<textFieldExpression><![CDATA[$F{name}]]></textFieldExpression>
</textField>
<textField>
<reportElement x="200" y="0" width="100" height="20" uuid="cf3e397e-5546-4490-a88c-7211f124475e"/>
<box>
<topPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
<leftPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
<bottomPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
<rightPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
</box>
<textFieldExpression><![CDATA[$F{price}]]></textFieldExpression>
</textField>
</band>
</detail>
</jasperReport>

PDF 使用 Jasper Reports 6.3.0 Java API 生成。

import net.sf.jasperreports.engine.JasperExportManager;
import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.JasperReport;
import net.sf.jasperreports.engine.query.JsonQueryExecuterFactory;
import net.sf.jasperreports.engine.util.JRLoader;

import java.io.FileInputStream;
import java.util.HashMap;
import java.util.Map;

public class JasperTest {
public static void main(String[] args) throws Exception {
JasperReport jasperReport = (JasperReport) JRLoader.loadObjectFromFile("/Users/arul/JaspersoftWorkspaceV2/reports/main.jasper");
Map<String, Object> jasperParameters = new HashMap<String, Object>();
jasperParameters.put(JsonQueryExecuterFactory.JSON_INPUT_STREAM, new FileInputStream("/Users/arul/JaspersoftWorkspaceV2/data/expenses.json"));
JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, jasperParameters);
JasperExportManager.exportReportToPdfFile(jasperPrint, "report.pdf");
}
}

最佳答案

您将深入了解您的初始 json 查询

<queryString language="json">
<![CDATA[expenses.accounts]]>
</queryString>

日期 超出范围。

解决方案是留在费用范围内

<queryString language="json">
<![CDATA[expenses]]>
</queryString>

您现在将使用 subDataSource("accounts") 表达式调用子报表 1 (sub1.jasper)

<dataSourceExpression><![CDATA[((net.sf.jasperreports.engine.data.JsonDataSource)$P{REPORT_DATA_SOURCE}).subDataSource("accounts")]]></dataSourceExpression>

但是您现在只有 1 个详细信息带记录(费用),要解决此问题,您可以引入另一个子报表。

不是直接调用子报表 2,而是引入子报表 1_2 (sub1_2.jasper) 以再次迭代帐户 subDataSource("accounts"),这将显示标题并将您的子报表 2 (sub2.jasper) 包含在事务 .subDataSource("transactions")

的数据源中

主报告(main.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="expenses_main" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="8cf0f1cb-ccad-41ba-aa8a-44abd597de54">
<property name="com.jaspersoft.studio.data.defaultdataadapter" value="Json"/>
<queryString language="json">
<![CDATA[expenses]]>
</queryString>
<field name="date" class="java.lang.String">
<fieldDescription><![CDATA[date]]></fieldDescription>
</field>
<background>
<band splitType="Stretch"/>
</background>
<title>
<band height="71" splitType="Stretch">
<staticText>
<reportElement x="2" y="0" width="201" height="16" uuid="2e947a01-8b6b-4169-beaa-6b2dac0d4141"/>
<text><![CDATA[Expense Report]]></text>
</staticText>
<subreport>
<reportElement x="2" y="44" width="550" height="22" uuid="1d364987-9047-4660-bd58-8a2bcfc8493d"/>
<dataSourceExpression><![CDATA[((net.sf.jasperreports.engine.data.JsonDataSource)$P{REPORT_DATA_SOURCE}).subDataSource("accounts")]]></dataSourceExpression>
<subreportExpression><![CDATA["sub1.jasper"]]></subreportExpression>
</subreport>
<textField>
<reportElement x="442" y="0" width="100" height="16" uuid="1cfbe11b-4f85-4bad-9280-d8712b80a65c"/>
<textFieldExpression><![CDATA[$F{date}]]></textFieldExpression>
</textField>
<staticText>
<reportElement x="410" y="1" width="31" height="15" uuid="ee159651-5d7b-4e0e-a52a-cb71338891cc"/>
<text><![CDATA[Date: ]]></text>
</staticText>
</band>
</title>
<detail>
<band height="36" splitType="Stretch">
<subreport isUsingCache="false">
<reportElement x="2" y="10" width="545" height="20" uuid="10fde2aa-2b0b-4c1c-90d5-410f2fb9369b"/>
<dataSourceExpression><![CDATA[((net.sf.jasperreports.engine.data.JsonDataSource)$P{REPORT_DATA_SOURCE}).subDataSource("accounts")]]></dataSourceExpression>
<subreportExpression><![CDATA["sub1_2.jasper"]]></subreportExpression>
</subreport>
</band>
</detail>
</jasperReport>

子报表1_2(sub1_2.jasper)

<?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="expenses_subreport" pageWidth="555" pageHeight="802" columnWidth="555" leftMargin="0" rightMargin="0" topMargin="0" bottomMargin="0" uuid="2e39bfaf-e964-4b5d-847e-6517de5718d4">
<property name="com.jaspersoft.studio.data.defaultdataadapter" value="Json"/>
<field name="title" class="java.lang.String"/>
<background>
<band splitType="Stretch"/>
</background>
<detail>
<band height="40" splitType="Stretch">
<property name="com.jaspersoft.studio.unit.height" value="pixel"/>
<textField>
<reportElement x="2" y="1" width="550" height="20" uuid="934d546e-aeeb-4760-b100-cbefed73c420"/>
<textFieldExpression><![CDATA["Transactions for " + $F{title}]]></textFieldExpression>
</textField>
<subreport isUsingCache="false">
<reportElement x="5" y="16" width="545" height="20" uuid="1b8b0487-9dfa-4b82-bfb1-13009cb74ece"/>
<dataSourceExpression><![CDATA[((net.sf.jasperreports.engine.data.JsonDataSource)$P{REPORT_DATA_SOURCE}).subDataSource("transactions")]]></dataSourceExpression>
<subreportExpression><![CDATA["sub2.jasper"]]></subreportExpression>
</subreport>
</band>
</detail>
</jasperReport>

子报告 1 和 2(sub1.jrxmlsub2.jrxml)

没有变化


结果

output

关于java - Jasper 子报表在标题带中嵌入时仅显示来自 JSON 数据源的一个条目,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/39399255/

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