Pass ArrayList объект в качестве параметра Jasper Reports проблемы

Question

Story: Два домена объекты:

class JasperProject { 
    private String ... 
} 

class JasperProjectGroup { 
    private String ... 
    private List<JasperProject> ... 
} 

Код для Джаспера:

 Map<String, Object> parameters = new HashMap<String, Object>(); 
     List<JasperProjectGroup> groups = buildGroups(); 
     parameters.put("groups", groups); 

     InputStream jasperReportInputStream = ProjectStatusReportGenerator.class.getClassLoader().getResourceAsStream(
         PROJECT_STATUS_JASPER_REPORT_FILENAME); 

     JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReportInputStream, parameters, 
         new JREmptyDataSource()); 

     ByteArrayOutputStream outputStream = new ByteArrayOutputStream(); 

     JasperExportManager.exportReportToPdfStream(jasperPrint, outputStream); 

     return outputStream.toByteArray(); 

Я хочу создать отчет в формате PDF с таблицами, которые каждый таблицу групп на каждой отдельной странице (например, таблица для группы 1 на стр. 1, таблица для группы 2 на стр. 2). Однако, когда я передаю группы в качестве параметра шаблону Jasper, он отображает только одну таблицу, содержащую все группы в отчете pdf.

XML код jrxml

Первый XML:

<?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="timesheets" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20"> 
    <property name="ireport.zoom" value="1.0"/> 
    <property name="ireport.x" value="0"/> 
    <property name="ireport.y" value="0"/> 
    <parameter name="groups" class="java.util.Collection"/> 
    <background> 
     <band splitType="Stretch"/> 
    </background> 
    <detail> 
     <band height="800" splitType="Stretch"> 
      <subreport runToBottom="true"> 
       <reportElement x="0" y="0" width="515" height="800"/> 
       <dataSourceExpression><![CDATA[(new net.sf.jasperreports.engine.data.JRBeanCollectionDataSource($P{groups}))]]></dataSourceExpression> 
       <subreportExpression><![CDATA[net.sf.jasperreports.engine.data.JRBeanCollectionDataSource.class.getClassLoader().getResourceAsStream("projectgroup.jasper")]]></subreportExpression> 
      </subreport> 
     </band> 
    </detail> 
</jasperReport> 

Второй шаблон (projectgroup.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="projectgroup" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20"> 
    <property name="ireport.zoom" value="1.0"/> 
    <property name="ireport.x" value="0"/> 
    <property name="ireport.y" value="0"/> 
    <subDataset name="TableDataset1"> 
     <field name="projectName" class="java.lang.String"/> 
     <field name="bookedHours" class="java.lang.String"/> 
     <field name="predictedHours" class="java.lang.String"/> 
     <field name="burnedHours" class="java.lang.String"/> 
     <field name="percentageComplete" class="java.lang.String"/> 
     <field name="bookedHoursBurned" class="java.lang.String"/> 
    </subDataset> 
    <field name="jasperProjectStatusReports" class="java.util.List"/> 
    <detail> 
     <band height="50" splitType="Stretch"> 
      <subreport> 
       <reportElement x="0" y="0" width="515" height="50"/> 
       <dataSourceExpression><![CDATA[(new net.sf.jasperreports.engine.data.JRBeanCollectionDataSource($F{jasperProjectStatusReports}))]]></dataSourceExpression> 
       <subreportExpression><![CDATA[net.sf.jasperreports.engine.data.JRBeanCollectionDataSource.class.getClassLoader().getResourceAsStream("projectgroup_table.jasper")]]></subreportExpression> 
      </subreport> 
     </band> 
    </detail> 
</jasperReport> 

Третий шаблон XML (projectgroup_table.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="projectgroup_table" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="0" rightMargin="0" topMargin="0" bottomMargin="0"> 
    <property name="ireport.zoom" value="1.0"/> 
    <property name="ireport.x" value="0"/> 
    <property name="ireport.y" value="0"/> 
    <field name="groupName" class="java.lang.String"/> 
    <field name="projectName" class="java.lang.String"/> 
    <field name="bookedHours" class="java.lang.String"/> 
    <field name="predictedHours" class="java.lang.String"/> 
    <field name="burnedHours" class="java.lang.String"/> 
    <field name="percentageComplete" class="java.lang.String"/> 
    <field name="bookedHoursBurned" class="java.lang.String"/> 
    <background> 
     <band splitType="Stretch"/> 
    </background> 
    <columnHeader> 
     <band height="20" splitType="Stretch"> 
      <textField> 
       <reportElement mode="Opaque" x="0" y="0" width="100" height="20" forecolor="#FFFFFF" backcolor="#006700"/> 
       <box leftPadding="5" rightPadding="5"> 
        <pen lineWidth="1.0" lineColor="#000000"/> 
        <topPen lineWidth="1.0" lineColor="#000000"/> 
        <leftPen lineWidth="1.0" lineColor="#000000"/> 
        <bottomPen lineWidth="1.0" lineColor="#000000"/> 
        <rightPen lineWidth="1.0" lineColor="#000000"/> 
       </box> 
       <textElement textAlignment="Left" verticalAlignment="Middle"> 
        <font size="12" isBold="true"/> 
       </textElement> 
       <textFieldExpression><![CDATA[$F{groupName}]]></textFieldExpression> 
      </textField> 
      <staticText> 
       <reportElement mode="Opaque" x="100" y="0" width="100" height="20" forecolor="#FFFFFF" backcolor="#006700"/> 
       <box leftPadding="5" rightPadding="5"> 
        <pen lineWidth="1.0" lineColor="#000000"/> 
        <topPen lineWidth="1.0" lineColor="#000000"/> 
        <leftPen lineWidth="1.0" lineColor="#000000"/> 
        <bottomPen lineWidth="1.0" lineColor="#000000"/> 
        <rightPen lineWidth="1.0" lineColor="#000000"/> 
       </box> 
       <textElement textAlignment="Center" verticalAlignment="Middle"> 
        <font size="12" isBold="true"/> 
       </textElement> 
       <text><![CDATA[Booked]]></text> 
      </staticText> 
      <staticText> 
       <reportElement mode="Opaque" x="200" y="0" width="100" height="20" forecolor="#FFFFFF" backcolor="#006700"/> 
       <box leftPadding="5" rightPadding="5"> 
        <pen lineWidth="1.0" lineColor="#000000"/> 
        <topPen lineWidth="1.0" lineColor="#000000"/> 
        <leftPen lineWidth="1.0" lineColor="#000000"/> 
        <bottomPen lineWidth="1.0" lineColor="#000000"/> 
        <rightPen lineWidth="1.0" lineColor="#000000"/> 
       </box> 
       <textElement textAlignment="Center" verticalAlignment="Middle"> 
        <font size="12" isBold="true"/> 
       </textElement> 
       <text><![CDATA[Predicted]]></text> 
      </staticText> 
      <staticText> 
       <reportElement mode="Opaque" x="300" y="0" width="100" height="20" forecolor="#FFFFFF" backcolor="#006700"/> 
       <box leftPadding="5" rightPadding="5"> 
        <pen lineWidth="1.0" lineColor="#000000"/> 
        <topPen lineWidth="1.0" lineColor="#000000"/> 
        <leftPen lineWidth="1.0" lineColor="#000000"/> 
        <bottomPen lineWidth="1.0" lineColor="#000000"/> 
        <rightPen lineWidth="1.0" lineColor="#000000"/> 
       </box> 
       <textElement textAlignment="Center" verticalAlignment="Middle"> 
        <font size="12" isBold="true"/> 
       </textElement> 
       <text><![CDATA[Burned]]></text> 
      </staticText> 
      <staticText> 
       <reportElement mode="Opaque" x="400" y="0" width="100" height="20" forecolor="#FFFFFF" backcolor="#006700"/> 
       <box leftPadding="5" rightPadding="5"> 
        <pen lineWidth="1.0" lineColor="#000000"/> 
        <topPen lineWidth="1.0" lineColor="#000000"/> 
        <leftPen lineWidth="1.0" lineColor="#000000"/> 
        <bottomPen lineWidth="1.0" lineColor="#000000"/> 
        <rightPen lineWidth="1.0" lineColor="#000000"/> 
       </box> 
       <textElement textAlignment="Center" verticalAlignment="Middle"> 
        <font size="12" isBold="true"/> 
       </textElement> 
       <text><![CDATA[Complete]]></text> 
      </staticText> 
      <staticText> 
       <reportElement mode="Opaque" x="500" y="0" width="95" height="20" forecolor="#FFFFFF" backcolor="#006700"/> 
       <box leftPadding="5" rightPadding="5"> 
        <pen lineWidth="1.0" lineColor="#000000"/> 
        <topPen lineWidth="1.0" lineColor="#000000"/> 
        <leftPen lineWidth="1.0" lineColor="#000000"/> 
        <bottomPen lineWidth="1.0" lineColor="#000000"/> 
        <rightPen lineWidth="1.0" lineColor="#000000"/> 
       </box> 
       <textElement textAlignment="Center" verticalAlignment="Middle"> 
        <font size="12" isBold="true"/> 
       </textElement> 
       <text><![CDATA[Booked Burned]]></text> 
      </staticText> 
     </band> 
    </columnHeader> 
    <detail> 
     <band height="21" splitType="Stretch"> 
      <textField isBlankWhenNull="true"> 
       <reportElement x="0" y="0" width="100" height="20"/> 
       <box leftPadding="5"> 
        <pen lineWidth="1.0"/> 
        <topPen lineWidth="1.0"/> 
        <leftPen lineWidth="1.0"/> 
        <bottomPen lineWidth="1.0"/> 
        <rightPen lineWidth="1.0"/> 
       </box> 
       <textElement textAlignment="Left" verticalAlignment="Middle"> 
        <font size="12"/> 
       </textElement> 
       <textFieldExpression><![CDATA[$F{projectName}]]></textFieldExpression> 
      </textField> 
      <textField isBlankWhenNull="true"> 
       <reportElement x="100" y="0" width="100" height="20"/> 
       <box leftPadding="0" rightPadding="5"> 
        <pen lineWidth="1.0"/> 
        <topPen lineWidth="1.0"/> 
        <leftPen lineWidth="1.0"/> 
        <bottomPen lineWidth="1.0"/> 
        <rightPen lineWidth="1.0"/> 
       </box> 
       <textElement textAlignment="Right" verticalAlignment="Middle"> 
        <font size="12"/> 
       </textElement> 
       <textFieldExpression><![CDATA[$F{bookedHours}]]></textFieldExpression> 
      </textField> 
      <textField isBlankWhenNull="true"> 
       <reportElement x="200" y="0" width="100" height="20"/> 
       <box leftPadding="5"> 
        <pen lineWidth="1.0"/> 
        <topPen lineWidth="1.0"/> 
        <leftPen lineWidth="1.0"/> 
        <bottomPen lineWidth="1.0"/> 
        <rightPen lineWidth="1.0"/> 
       </box> 
       <textElement textAlignment="Left" verticalAlignment="Middle"> 
        <font size="12"/> 
       </textElement> 
       <textFieldExpression><![CDATA[$F{predictedHours}]]></textFieldExpression> 
      </textField> 
      <textField isBlankWhenNull="true"> 
       <reportElement x="300" y="0" width="100" height="20"/> 
       <box leftPadding="5"> 
        <pen lineWidth="1.0"/> 
        <topPen lineWidth="1.0"/> 
        <leftPen lineWidth="1.0"/> 
        <bottomPen lineWidth="1.0"/> 
        <rightPen lineWidth="1.0"/> 
       </box> 
       <textElement textAlignment="Left" verticalAlignment="Middle"> 
        <font size="12"/> 
       </textElement> 
       <textFieldExpression><![CDATA[$F{burnedHours}]]></textFieldExpression> 
      </textField> 
      <textField isBlankWhenNull="true"> 
       <reportElement x="400" y="0" width="100" height="20"/> 
       <box leftPadding="5"> 
        <pen lineWidth="1.0"/> 
        <topPen lineWidth="1.0"/> 
        <leftPen lineWidth="1.0"/> 
        <bottomPen lineWidth="1.0"/> 
        <rightPen lineWidth="1.0"/> 
       </box> 
       <textElement textAlignment="Left" verticalAlignment="Middle"> 
        <font size="12"/> 
       </textElement> 
       <textFieldExpression><![CDATA[$F{percentageComplete}]]></textFieldExpression> 
      </textField> 
      <textField isBlankWhenNull="true"> 
       <reportElement x="500" y="1" width="95" height="20"/> 
       <box leftPadding="5"> 
        <pen lineWidth="1.0"/> 
        <topPen lineWidth="1.0"/> 
        <leftPen lineWidth="1.0"/> 
        <bottomPen lineWidth="1.0"/> 
        <rightPen lineWidth="1.0"/> 
       </box> 
       <textElement textAlignment="Left" verticalAlignment="Middle"> 
        <font size="12"/> 
       </textElement> 
       <textFieldExpression><![CDATA[$F{bookedHoursBurned}]]></textFieldExpression> 
      </textField> 
     </band> 
    </detail> 
</jasperReport> 

Есть ли идеи об этом? Благодарю.

Answer 1

Да, это можно сделать. Если вы развернете поле детали, используя команду ireprt ..., когда после того, как ваша одна группа будет напечатана, не будет места для другой группы, так что следующая группа будет на следующей странице.

Встроенная функциональность отчета о яшме.