通ArrayList對象作爲參數傳遞給碧玉報告問題

故事：兩個域對象：通ArrayList對象作爲參數傳遞給碧玉報告問題

class JasperProject { 
    private String ... 
} 

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

代碼碧玉：

 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();

我想創建一個表，每個PDF報表每個單獨頁面上的組表（例如，第1頁上的組1的表，第2頁上的組2的表）。但是，當我將組作爲參數傳遞給Jasper模板時，它只顯示一個包含pdf報告中所有組的表。爲JRXML

XML代碼

第一個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>

第二個模板（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>

第三模板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>

有什麼想法嗎？謝謝。

來源

2012-04-30 ttt

我可以問你爲什麼你有多個嵌套報告？ – user845279

是的，這是可以做到的。如果通過使用ireprt ...擴展詳細信息字段，則當您的一個組打印完畢後，其他組將不會有空間，因此下一個組將位於下一頁。

它的碧玉報告的內置功能。

來源

2012-09-11 08:11:31

通ArrayList對象作爲參數傳遞給碧玉報告問題

回答

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