Question

我在这个看似简单的任务上花了好几个小时。我有一个主报告，它有一个子报告，当单独预览两个报告时，它们都从JSON中的数据填充。但是，在主报表中，子报表根本不会显示。我尝试过在网上找到的所有解决方案，每一个解决方案似乎都无法帮助我！

我的主要报告：

<subreport>
    <reportElement x="0" y="0" width="555" height="408" uuid="3b7fa906-9011-4ed6-ae8e-0e642de110f7"/>
    <dataSourceExpression><![CDATA[((net.sf.jasperreports.engine.data.JsonDataSource)$P{REPORT_DATA_SOURCE}).subDataSource("user.documentList")]]></dataSourceExpression>
    <subreportExpression><![CDATA["C:\\Users\\Owen\\JaspersoftWorkspace\\TestFolder\\testsub4.jasper"]]></subreportExpression>
</subreport>

我的子报告：

<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="testsub4" pageWidth="612" pageHeight="792" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="ea880075-0207-45c9-a804-e8cf6d2068d4">
    <property name="com.jaspersoft.studio.data.defaultdataadapter" value="New Data Adapter (6)"/>
    <queryString language="json">
        <![CDATA[user.documentList]]>
    </queryString>
    <field name="documentType" class="java.lang.String">
        <property name="net.sf.jasperreports.json.field.expression" value="documentType"/>
        <fieldDescription><![CDATA[documentType]]></fieldDescription>
    </field>
    <background>
        <band splitType="Stretch"/>
    </background>
    <detail>
        <band height="125" splitType="Stretch">
            <textField>
                <reportElement x="116" y="0" width="114" height="30" uuid="4b456a4d-257e-48fe-b8c6-e209b7cb0f39">
                    <property name="com.jaspersoft.studio.spreadsheet.connectionID" value="dc387bf3-e169-4fbe-8c4f-f259ba6b5b75"/>
                </reportElement>
                <textFieldExpression><![CDATA[$F{documentType}]]></textFieldExpression>
            </textField>
        </band>
    </detail>
</jasperReport>

我认为必须是我的数据源表达是罪魁祸首，但我不知道如何解决它。

我完全不知道自己做错了什么。如果有人可以提供帮助，我将非常感激。

谢谢：）

编辑：所有完整的附加文件 -

主要报告 -

<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="TestSubreports" pageWidth="595" pageHeight="842" whenNoDataType="NoDataSection" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="3ce1a4ad-43ca-4058-8018-3cf61497fc13">
    <property name="net.sf.jasperreports.data.adapter" value="JsonDataAdapterTest.xml"/>
    <property name="com.jaspersoft.studio.data.defaultdataadapter" value="New Data Adapter (4)"/>
    <parameter name="SUBREPORT_DIR" class="java.lang.String" isForPrompting="false">
        <defaultValueExpression><![CDATA["C:\\Users\\Owen\\JaspersoftWorkspace\\TestFolder\\"]]></defaultValueExpression>
    </parameter>
    <queryString language="json">
        <![CDATA[user]]>
    </queryString>
    <field name="firstName" class="java.lang.String">
        <property name="net.sf.jasperreports.json.field.expression" value="firstName"/>
        <fieldDescription><![CDATA[firstName]]></fieldDescription>
    </field>
    <field name="lastName" class="java.lang.String">
        <property name="net.sf.jasperreports.json.field.expression" value="lastName"/>
        <fieldDescription><![CDATA[lastName]]></fieldDescription>
    </field>
    <field name="email" class="java.lang.String">
        <property name="net.sf.jasperreports.json.field.expression" value="email"/>
        <fieldDescription><![CDATA[email]]></fieldDescription>
    </field>
    <field name="userStatus" class="java.lang.String">
        <property name="net.sf.jasperreports.json.field.expression" value="userStatus"/>
        <fieldDescription><![CDATA[userStatus]]></fieldDescription>
    </field>
    <field name="documentList" class="java.lang.String">
        <property name="net.sf.jasperreports.json.field.expression" value="documentList"/>
        <fieldDescription><![CDATA[documentList]]></fieldDescription>
    </field>
    <background>
        <band splitType="Stretch"/>
    </background>
    <title>
        <band height="79" splitType="Stretch">
            <textField>
                <reportElement x="0" y="0" width="141" height="30" uuid="8f49a338-3eed-4534-8bf2-d82072f66a59"/>
                <textFieldExpression><![CDATA[$F{firstName}]]></textFieldExpression>
            </textField>
            <textField>
                <reportElement x="141" y="0" width="138" height="30" uuid="ae04e6e9-db4d-4359-a474-d95a355b4cce"/>
                <textFieldExpression><![CDATA[$F{lastName}]]></textFieldExpression>
            </textField>
            <textField>
                <reportElement x="279" y="0" width="138" height="30" uuid="f2bc475f-a74f-409c-a83c-73edb6136852"/>
                <textFieldExpression><![CDATA[$F{email}]]></textFieldExpression>
            </textField>
            <textField>
                <reportElement x="417" y="0" width="138" height="30" uuid="d05cc670-5634-43f5-9e8b-9afe18f9f6d4"/>
                <textFieldExpression><![CDATA[$F{userStatus}]]></textFieldExpression>
            </textField>
        </band>
    </title>
    <detail>
        <band height="408" splitType="Stretch">
            <subreport>
                <reportElement x="0" y="10" width="555" height="398" uuid="3f4fc8a1-d7ff-40ae-b8b3-c5685bf0948e"/>
                <subreportExpression><![CDATA[$P{SUBREPORT_DIR}+"testsub6.jasper"]]></subreportExpression>
            </subreport>
        </band>
    </detail>
    <summary>
        <band height="42" splitType="Stretch"/>
    </summary>
</jasperReport>

子报告 -

<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="testsub6" pageWidth="595" pageHeight="842" columnWidth="535" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" isIgnorePagination="true" uuid="13acf49e-4913-4d1b-bccc-113817ad15d1">
    <property name="net.sf.jasperreports.data.adapter" value="JsonDataAdapterTest.xml"/>
    <property name="com.jaspersoft.studio.data.defaultdataadapter" value="New Data Adapter (7)"/>
    <style name="Title" forecolor="#FFFFFF" fontName="Times New Roman" fontSize="50" isBold="false"/>
    <style name="SubTitle" forecolor="#CCCCCC" fontName="Times New Roman" fontSize="18" isBold="false"/>
    <style name="Column header" forecolor="#666666" fontName="Times New Roman" fontSize="14" isBold="true"/>
    <style name="Detail" mode="Transparent" fontName="Times New Roman"/>
    <style name="Row" mode="Transparent" fontName="Times New Roman" pdfFontName="Times-Roman">
        <conditionalStyle>
            <conditionExpression><![CDATA[$V{REPORT_COUNT}%2 == 0]]></conditionExpression>
            <style mode="Opaque" backcolor="#F0EFEF"/>
        </conditionalStyle>
    </style>
    <queryString language="json">
        <![CDATA[user.documentList]]>
    </queryString>
    <field name="id" class="java.lang.String">
        <property name="net.sf.jasperreports.json.field.expression" value="id"/>
        <fieldDescription><![CDATA[id]]></fieldDescription>
    </field>
    <field name="documentType" class="java.lang.String">
        <property name="net.sf.jasperreports.json.field.expression" value="documentType"/>
        <fieldDescription><![CDATA[documentType]]></fieldDescription>
    </field>
    <field name="documentStatus" class="java.lang.String">
        <property name="net.sf.jasperreports.json.field.expression" value="documentStatus"/>
        <fieldDescription><![CDATA[documentStatus]]></fieldDescription>
    </field>
    <field name="rejectReason" class="java.lang.String">
        <property name="net.sf.jasperreports.json.field.expression" value="rejectReason"/>
        <fieldDescription><![CDATA[rejectReason]]></fieldDescription>
    </field>
    <field name="comment" class="java.lang.String">
        <property name="net.sf.jasperreports.json.field.expression" value="comment"/>
        <fieldDescription><![CDATA[comment]]></fieldDescription>
    </field>
    <field name="events" class="java.lang.String">
        <property name="net.sf.jasperreports.json.field.expression" value="events"/>
        <fieldDescription><![CDATA[events]]></fieldDescription>
    </field>
    <variable name="id1" class="java.lang.Integer" resetType="Column" calculation="Count">
        <variableExpression><![CDATA[$F{id}]]></variableExpression>
    </variable>
    <variable name="documentType1" class="java.lang.Integer" resetType="Column" calculation="Count">
        <variableExpression><![CDATA[$F{documentType}]]></variableExpression>
    </variable>
    <variable name="documentStatus1" class="java.lang.Integer" resetType="Column" calculation="Count">
        <variableExpression><![CDATA[$F{documentStatus}]]></variableExpression>
    </variable>
    <variable name="rejectReason1" class="java.lang.Integer" resetType="Column" calculation="Count">
        <variableExpression><![CDATA[$F{rejectReason}]]></variableExpression>
    </variable>
    <variable name="comment1" class="java.lang.Integer" resetType="Column" calculation="Count">
        <variableExpression><![CDATA[$F{comment}]]></variableExpression>
    </variable>
    <background>
        <band splitType="Stretch"/>
    </background>
    <title>
        <band height="132" splitType="Stretch">
            <image>
                <reportElement x="456" y="0" width="99" height="132" uuid="97705585-a0b5-4ec7-86f3-ae10c220e6af"/>
                <imageExpression><![CDATA["cherry.jpg"]]></imageExpression>
            </image>
            <frame>
                <reportElement mode="Opaque" x="0" y="0" width="451" height="95" backcolor="#000000" uuid="6c6ca4e1-17cd-4913-93d6-5e670ea9ae8a"/>
                <staticText>
                    <reportElement style="Title" x="0" y="0" width="370" height="66" uuid="a2a2cac8-5a7d-4487-8c54-dab235ce4e21"/>
                    <textElement>
                        <font isBold="false"/>
                    </textElement>
                    <text><![CDATA[Cherry Title]]></text>
                </staticText>
                <staticText>
                    <reportElement style="SubTitle" x="157" y="66" width="249" height="29" uuid="8978eac3-c578-41c9-837e-48d2b0184642"/>
                    <textElement>
                        <font size="22" isBold="false"/>
                    </textElement>
                    <text><![CDATA[Cherry SubTitle]]></text>
                </staticText>
            </frame>
            <frame>
                <reportElement mode="Opaque" x="0" y="100" width="451" height="32" forecolor="#000000" backcolor="#CC0000" uuid="e3c14156-5b51-4201-918b-97fdc012e5d4"/>
                <textField pattern="EEEEE dd MMMMM yyyy">
                    <reportElement x="307" y="12" width="144" height="20" forecolor="#FFFFFF" uuid="5c3301e7-a737-4c59-8a2f-a6c79fd1adb8"/>
                    <textElement textAlignment="Right">
                        <font size="12"/>
                    </textElement>
                    <textFieldExpression><![CDATA[new java.util.Date()]]></textFieldExpression>
                </textField>
            </frame>
        </band>
    </title>
    <pageHeader>
        <band splitType="Stretch"/>
    </pageHeader>
    <columnHeader>
        <band height="42" splitType="Stretch">
            <textField>
                <reportElement x="148" y="11" width="100" height="30" uuid="eaa79550-007b-4f6d-a939-62b6057255b9"/>
                <textFieldExpression><![CDATA["Text Field"]]></textFieldExpression>
            </textField>
        </band>
    </columnHeader>
    <detail>
        <band height="30" splitType="Stretch">
            <textField>
                <reportElement x="0" y="0" width="111" height="30" uuid="1ab61080-0512-4c3b-be9e-d7231186d148"/>
                <textFieldExpression><![CDATA[$F{id}]]></textFieldExpression>
            </textField>
            <textField>
                <reportElement x="111" y="0" width="111" height="30" uuid="40a8d166-cee2-499e-ab3e-7d8875276590"/>
                <textFieldExpression><![CDATA[$F{documentType}]]></textFieldExpression>
            </textField>
            <textField>
                <reportElement x="222" y="0" width="111" height="30" uuid="a03ecea5-b1bc-4928-b961-2e494b6be050"/>
                <textFieldExpression><![CDATA[$F{documentStatus}]]></textFieldExpression>
            </textField>
            <textField>
                <reportElement x="333" y="0" width="111" height="30" uuid="5ddeb63e-607d-4906-8b9d-4e1f4dacdf17"/>
                <textFieldExpression><![CDATA[$F{rejectReason}]]></textFieldExpression>
            </textField>
            <textField>
                <reportElement x="444" y="0" width="111" height="30" uuid="5d83bd3d-d5c7-4b10-a162-9e49249733f7"/>
                <textFieldExpression><![CDATA[$F{comment}]]></textFieldExpression>
            </textField>
        </band>
    </detail>
    <columnFooter>
        <band height="7" splitType="Stretch">
            <line>
                <reportElement positionType="FixRelativeToBottom" x="0" y="3" width="555" height="1" uuid="1133a906-5b71-476e-9f3e-bc97c97058c1"/>
                <graphicElement>
                    <pen lineWidth="0.5" lineColor="#999999"/>
                </graphicElement>
            </line>
        </band>
    </columnFooter>
    <pageFooter>
        <band height="25" splitType="Stretch">
            <frame>
                <reportElement mode="Opaque" x="0" y="1" width="555" height="24" forecolor="#D0B48E" backcolor="#000000" uuid="729c3539-f946-4d0e-a0a7-bda2815ea1b0"/>
                <textField evaluationTime="Report">
                    <reportElement style="Column header" x="513" y="0" width="40" height="20" forecolor="#FFFFFF" uuid="4834e99c-7f6c-485a-b098-50e5187f2ab4"/>
                    <textElement verticalAlignment="Middle">
                        <font size="10" isBold="false"/>
                    </textElement>
                    <textFieldExpression><![CDATA[" " + $V{PAGE_NUMBER}]]></textFieldExpression>
                </textField>
                <textField>
                    <reportElement style="Column header" x="433" y="0" width="80" height="20" forecolor="#FFFFFF" uuid="9825b46e-76f1-469a-abb8-a1cc27aad685"/>
                    <textElement textAlignment="Right" verticalAlignment="Middle">
                        <font size="10" isBold="false"/>
                    </textElement>
                    <textFieldExpression><![CDATA["Page "+$V{PAGE_NUMBER}+" of"]]></textFieldExpression>
                </textField>
                <textField pattern="EEEEE dd MMMMM yyyy">
                    <reportElement style="Column header" x="2" y="1" width="197" height="20" forecolor="#FFFFFF" uuid="137d38c7-1a83-4fc5-b156-9d5f1b1a0ddc"/>
                    <textElement verticalAlignment="Middle">
                        <font size="10" isBold="false"/>
                    </textElement>
                    <textFieldExpression><![CDATA[new java.util.Date()]]></textFieldExpression>
                </textField>
            </frame>
        </band>
    </pageFooter>
    <summary>
        <band splitType="Stretch"/>
    </summary>
</jasperReport>

Json文件 -

{
  "user": [
    {
      "firstName": "Mike",
      "lastName": "Jones",
      "email": "mikeJones@gmail.com",
      "userStatus": "VALIDATED",
      "documentList": [
        {
          "id": 2,
          "documentType": "DRIVING_LICENSE",
          "documentStatus": "APPROVED",
          "comment": "",
          "events": [
            {
              "action": "APPROVE",
              "comment": "",
              "createDate": "2018-05-24T10:44:55.987+0000"
            }
          ]
        },
        {
          "id": 1,
          "documentType": "PASSPORT",
          "documentStatus": "APPROVED",
          "comment": "",
          "events": [
            {
              "action": "APPROVE",
              "comment": "",
              "createDate": "2018-05-24T10:44:55.901+0000"
            }
          ]
        }
      ]
    }
  ]
}

Answer 1

您的报告在编译和显示数据的意义上可以正常工作。最有可能的是，您在修改子报表后没有重新编译子报表。你可以：

右键单击<XYPlot xDomain={[0, 50]}中的子报表JRXML并选择Project Explorer View
点击报告Compile Report标签中的编译按钮：
选择Design - ＆gt;从顶部菜单Project可以在保存时构建所有内容

您现在可以回到这样的想法，即只需将主报表的子报表声明修改为：

，即可将数据从主报表传递到子报表。

Build Automatically

不需要修改子报告。

JSON子报告问题;数据未显示在主报告中（jaspersoft studio）

1 个答案: