文档建议反馈控制台
首页
学习
活动
专区
工具
TVP
最新优惠活动
文章/答案/技术大牛
发布
社区首页 >问答首页 >为什么只打印了我的DataSource的第一个对象？

问为什么只打印了我的DataSource的第一个对象？
EN

Stack Overflow用户
提问于 2019-05-20 21:07:33
回答 1查看 150关注 0票数 0

我想打印一份报告。我向报表1发送了一个包含3个对象的DataSource。Band Detail包含一个子报表(report 2)。My Problem：为什么只打印一次？

每个发送的对象都包含另一个带有3个对象的DataSource。Report 2将此DataSource发送到report 3，并打印各行。(如我所料)。

为什么从report 2到report 3都有效？为什么它不能从报告1到报告2工作？

它是一个JavaFX应用程序。

我的测试：

代码语言：javascript
复制
try {
   File report1File = Actions.getReportFromPackage("layout/spProgramm.jrxml");
   File report2File = Actions.getReportFromPackage("layout/spWeek.jrxml");

   JasperReport report1 = JasperCompileManager.compileReport(report1File.getAbsolutePath());
   JasperReport report2 = JasperCompileManager.compileReport(report2File.getAbsolutePath());

   ArrayList<JRWeek> report2ArrayList = new ArrayList<>();

   report2ArrayList.add(JRWeek.newObject("1"));
   report2ArrayList.add(JRWeek.newObject("2"));
   report2ArrayList.add(JRWeek.newObject("3"));

   JRBeanCollectionDataSource report2DataSource = new JRBeanCollectionDataSource(report2ArrayList);

   Map<String, Object> parameters = new HashMap<String, Object>();
   parameters.put("report2", report2);
   parameters.put("report2DataSource", report2DataSource);

   JasperPrint jasperPrint = JasperFillManager.fillReport(report1, parameters, new JREmptyDataSource());

   JasperViewer jv = new JasperViewer(jasperPrint, false);
} catch (JRException e) {
   System.out.println(e.getMessage());
}

类: JRWeek

代码语言：javascript
复制
public class JRWeek {

  private JasperReport report3;
  private JRBeanCollectionDataSource report3DataSource;

  public static JRWeek newObject(String week) throws JRException {
    JRWeek jrWeek = new JRWeek();

    File report3File = Actions.getReportFromPackage("layout/spRows.jrxml");
    JasperReport report3 = JasperCompileManager.compileReport(report3File.getAbsolutePath());

    ArrayList<JRRow> jrRows = new ArrayList<>();
    jrRows.add(new JRRow("REPORT 3 WEEK" + week, "ROW 1"));
    jrRows.add(new JRRow("REPORT 3 WEEK" + week, "ROW 2"));
    jrRows.add(new JRRow("REPORT 3 WEEK" + week, "ROW 3"));

    jrWeek.setReport3(report3);
    jrWeek.setReport3DataSource(new JRBeanCollectionDataSource(jrRows));

    return jrWeek;
  }
// Getter and Setter
}

类: JRRow

代码语言：javascript
复制
public class JRRow {

  private String text1;
  private String text2;

  public JRRow(String text1, String text2) {
    super();
    this.text1 = text1;
    this.text2 = text2;
  }
// Getter and Setter
}

报告1: spProgramm.jrxml

代码语言：javascript
复制
<?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="spMeetingProgramm" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="0053568c-4b27-4125-bdd4-3172dc64051b">
    <property name="com.jaspersoft.studio.data.defaultdataadapter" value="One Empty Record"/>
    <parameter name="report2" class="net.sf.jasperreports.engine.JasperReport"/>
    <parameter name="report2DataSource" class="net.sf.jasperreports.engine.data.JRBeanCollectionDataSource"/>
    <pageHeader>
        <band height="60">
            <rectangle>
                <reportElement x="0" y="0" width="555" height="60" forecolor="#FFFFFF" backcolor="#0B6798" uuid="976d792c-c89b-4ea1-bda7-af6b30392492"/>
                <graphicElement>
                    <pen lineWidth="0.0" lineColor="#0B6798"/>
                </graphicElement>
            </rectangle>
            <textField>
                <reportElement x="0" y="0" width="555" height="30" forecolor="#FFFFFF" uuid="43b185ef-16a8-40b2-a933-ecc0fe3adc70"/>
                <textElement textAlignment="Center" verticalAlignment="Middle">
                    <font size="14" isBold="true"/>
                </textElement>
                <textFieldExpression><![CDATA["REPORT 1 HEADER 1"]]></textFieldExpression>
            </textField>
            <textField>
                <reportElement x="0" y="30" width="555" height="30" forecolor="#FFFFFF" uuid="9172e851-2e29-4f95-9542-519930e7aa3d"/>
                <textElement textAlignment="Center" verticalAlignment="Middle">
                    <font size="16" isBold="true"/>
                </textElement>
                <textFieldExpression><![CDATA["REPORT 1 HEADER 2"]]></textFieldExpression>
            </textField>
        </band>
    </pageHeader>
    <detail>
        <band height="35">
            <subreport>
                <reportElement stretchType="RelativeToBandHeight" x="0" y="10" width="555" height="25" uuid="aae0c36a-3373-45cb-a030-ed835e3d0005"/>
                <dataSourceExpression><![CDATA[$P{report2DataSource}]]></dataSourceExpression>
                <subreportExpression><![CDATA[$P{report2}]]></subreportExpression>
            </subreport>
        </band>
    </detail>
</jasperReport>

报告2: spWeek.jrxml

代码语言：javascript
复制
<?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="spMeetingWeek" pageWidth="555" pageHeight="842" columnWidth="555" leftMargin="0" rightMargin="0" topMargin="0" bottomMargin="0" uuid="e6d013b3-aa4c-4ba7-ab71-aaec14a42962">
    <property name="com.jaspersoft.studio.data.defaultdataadapter" value="One Empty Record"/>
    <field name="report3" class="net.sf.jasperreports.engine.JasperReport"/>
    <field name="report3DataSource" class="net.sf.jasperreports.engine.data.JRBeanCollectionDataSource"/>
    <group name="weekHeader">
        <groupHeader>
            <band height="17">
                <rectangle>
                    <reportElement x="0" y="0" width="555" height="17" backcolor="#17365D" uuid="70d3c82d-21e2-4dd1-80a9-8ca137ebe569"/>
                    <graphicElement>
                        <pen lineWidth="0.5"/>
                    </graphicElement>
                </rectangle>
                <textField>
                    <reportElement x="5" y="0" width="550" height="17" forecolor="#FFFFFF" uuid="45cdacc1-7833-4296-b942-1ce3ab998189"/>
                    <textElement verticalAlignment="Top">
                        <font fontName="SansSerif" size="12" isBold="true"/>
                    </textElement>
                    <textFieldExpression><![CDATA["REPORT 2 HEADER 1"]]></textFieldExpression>
                </textField>
            </band>
        </groupHeader>
    </group>
    <group name="header1">
        <groupHeader>
            <band height="17">
                <rectangle>
                    <reportElement x="0" y="0" width="555" height="17" backcolor="#DEA900" uuid="a5f3a182-963d-456a-9102-de1bbf18895d"/>
                    <graphicElement>
                        <pen lineWidth="0.5"/>
                    </graphicElement>
                </rectangle>
                <textField>
                    <reportElement x="5" y="0" width="550" height="17" forecolor="#FFFFFF" uuid="4f94c435-2a99-4c90-8fea-2d30e7c04272"/>
                    <textElement verticalAlignment="Top">
                        <font fontName="SansSerif" size="12" isBold="true"/>
                    </textElement>
                    <textFieldExpression><![CDATA["REPORT 2 HEADER 2"]]></textFieldExpression>
                </textField>
            </band>
        </groupHeader>
    </group>
    <group name="header1Rows">
        <groupHeader>
            <band height="5">
                <subreport>
                    <reportElement stretchType="RelativeToBandHeight" x="0" y="0" width="555" height="5" uuid="0daf0871-3f2e-4287-b42a-f99b554bcd62"/>
                    <dataSourceExpression><![CDATA[$F{report3DataSource}]]></dataSourceExpression>
                    <subreportExpression><![CDATA[$F{report3}]]></subreportExpression>
                </subreport>
            </band>
        </groupHeader>
    </group>
</jasperReport>

报告3: spRows.jrxml

代码语言：javascript
复制
<?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="spMeetingMinistryPartRow" pageWidth="555" pageHeight="842" columnWidth="555" leftMargin="0" rightMargin="0" topMargin="0" bottomMargin="0" uuid="e6d013b3-aa4c-4ba7-ab71-aaec14a42962">
    <property name="com.jaspersoft.studio.data.defaultdataadapter" value="One Empty Record"/>
    <field name="text1" class="java.lang.String"/>
    <field name="text2" class="java.lang.String"/>
    <detail>
        <band height="17">
            <rectangle>
                <reportElement stretchType="RelativeToBandHeight" x="0" y="0" width="555" height="17" uuid="09a1f023-2151-43df-831a-6f3a2d19494d"/>
                <graphicElement>
                    <pen lineWidth="0.5"/>
                </graphicElement>
            </rectangle>
            <textField isStretchWithOverflow="true">
                <reportElement stretchType="RelativeToBandHeight" x="60" y="0" width="217" height="17" uuid="0afdce9b-710f-41e3-b271-ca4e828c2be4"/>
                <textElement verticalAlignment="Middle">
                    <font fontName="SansSerif" size="11"/>
                </textElement>
                <textFieldExpression><![CDATA[$F{text1}]]></textFieldExpression>
            </textField>
            <textField isStretchWithOverflow="true" pattern="">
                <reportElement stretchType="RelativeToBandHeight" x="282" y="0" width="134" height="17" uuid="5e325968-5b1f-44f1-a326-89cc52620b6c"/>
                <textElement verticalAlignment="Middle">
                    <font size="11"/>
                </textElement>
                <textFieldExpression><![CDATA[$F{text2}]]></textFieldExpression>
            </textField>
        </band>
    </detail>
</jasperReport>

结果

​

​

java
jasper-reports
subreport
EN

回答 1

Stack Overflow用户

回答已采纳

发布于 2019-05-20 23:31:46

将report 3/spRows.jrxml子报告元素放在report 2/spWeek.jrxml报告的详细信息区域中。

现在，您拥有了一个没有组表达式的组的标题，并且这样的标题只在报告中打印一次。

票数 0
EN
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：

https://stackoverflow.com/questions/56221656

复制
相关文章

相似问题

领券

腾讯云开发者

扫码关注腾讯云开发者

扫码关注腾讯云开发者

领取腾讯云代金券

热门产品

热门推荐

更多推荐

Copyright © 2013 - 2024 Tencent Cloud. All Rights Reserved. 腾讯云 版权所有 

深圳市腾讯计算机系统有限公司 ICP备案/许可证号：粤B2-20090059 深公网安备号 44030502008569

腾讯云计算（北京）有限责任公司 京ICP证150476号 |  京ICP备11018762号 | 京公网安备号11010802020287

问题归档专栏文章快讯文章归档关键词归档开发者手册归档开发者手册 Section 归档