问题：
Jasper报告与JRBeanGrou
胡志
我已经使用JRResultSetDataSource使用了Jasper报告，但这是我第一次使用JRBeanGrou
我正在尝试使用以下代码运行报告测试：
客户.java
public class Cliente {
private String nomeCliente;
public String getNomeCliente() {
return nomeCliente;
}
public void setNomeCliente(String nomeCliente) {
this.nomeCliente = nomeCliente;
}
}
Report.java
public class Report<T> {
private Collection<T> dataList;
private String jrxml;
public Report() {
}
public Report(Collection<T> dataList, String jrxml) {
super();
this.dataList = dataList;
this.jrxml = jrxml;
}
public Collection<T> getDataList() {
return dataList;
}
public void setDataList(Collection<T> dataList) {
this.dataList = dataList;
}
public String getJrxml() {
return jrxml;
}
public void setJrxml(String jrxml) {
this.jrxml = jrxml;
}
@SuppressWarnings({ "rawtypes", "unchecked" })
public void getReport(Collection<T> dataList, String jrxml) throws Exception {
JasperReport report = null;
JasperDesign reportDesign;
try {
reportDesign = JRXmlLoader.load(jrxml);
report = JasperCompileManager.compileReport(reportDesign);
} catch (JRException e2) {
e2.printStackTrace();
}
JRBeanCollectionDataSource beanColDataSource = new JRBeanCollectionDataSource(dataList);
Map params = new HashMap();
params.put("dataSource", dataList);
JasperPrint jsPrint = null;
try {
jsPrint = JasperFillManager.fillReport(report, params, beanColDataSource);
} catch (JRException e1) {
e1.printStackTrace();
}
JasperViewer viewer = new JasperViewer(jsPrint, false);
viewer.setVisible(true);
}
}
clientereport.jrxml
<?xml version="1.0" encoding="UTF-8"?>
<!-- Created with Jaspersoft Studio version 6.6.0.final using JasperReports Library version 6.6.0 -->
<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="estiloinstitutobeleza_report" language="groovy" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="05a86d77-8b2c-49cc-9bf6-27fbf7a545d5">
<property name="ireport.zoom" value="1.0"/>
<property name="ireport.x" value="0"/>
<property name="ireport.y" value="0"/>
<property name="com.jaspersoft.studio.data.defaultdataadapter" value="One Empty Record"/>
<style name="Table_TH" mode="Opaque" backcolor="#F0F8FF">
<box>
<pen lineWidth="0.5" lineColor="#000000"/>
<topPen lineWidth="0.5" lineColor="#000000"/>
<leftPen lineWidth="0.5" lineColor="#000000"/>
<bottomPen lineWidth="0.5" lineColor="#000000"/>
<rightPen lineWidth="0.5" lineColor="#000000"/>
</box>
</style>
<style name="Table_CH" mode="Opaque" backcolor="#BFE1FF">
<box>
<pen lineWidth="0.5" lineColor="#000000"/>
<topPen lineWidth="0.5" lineColor="#000000"/>
<leftPen lineWidth="0.5" lineColor="#000000"/>
<bottomPen lineWidth="0.5" lineColor="#000000"/>
<rightPen lineWidth="0.5" lineColor="#000000"/>
</box>
</style>
<style name="Table_TD" mode="Opaque" backcolor="#FFFFFF">
<box>
<pen lineWidth="0.5" lineColor="#000000"/>
<topPen lineWidth="0.5" lineColor="#000000"/>
<leftPen lineWidth="0.5" lineColor="#000000"/>
<bottomPen lineWidth="0.5" lineColor="#000000"/>
<rightPen lineWidth="0.5" lineColor="#000000"/>
</box>
</style>
<style name="Table 1_TH" mode="Opaque" backcolor="#F0F8FF">
<box>
<pen lineWidth="0.5" lineColor="#000000"/>
<topPen lineWidth="0.5" lineColor="#000000"/>
<leftPen lineWidth="0.5" lineColor="#000000"/>
<bottomPen lineWidth="0.5" lineColor="#000000"/>
<rightPen lineWidth="0.5" lineColor="#000000"/>
</box>
</style>
<style name="Table 1_CH" mode="Opaque" backcolor="#BFE1FF">
<box>
<pen lineWidth="0.5" lineColor="#000000"/>
<topPen lineWidth="0.5" lineColor="#000000"/>
<leftPen lineWidth="0.5" lineColor="#000000"/>
<bottomPen lineWidth="0.5" lineColor="#000000"/>
<rightPen lineWidth="0.5" lineColor="#000000"/>
</box>
</style>
<style name="Table 1_TD" mode="Opaque" backcolor="#FFFFFF">
<box>
<pen lineWidth="0.5" lineColor="#000000"/>
<topPen lineWidth="0.5" lineColor="#000000"/>
<leftPen lineWidth="0.5" lineColor="#000000"/>
<bottomPen lineWidth="0.5" lineColor="#000000"/>
<rightPen lineWidth="0.5" lineColor="#000000"/>
</box>
</style>
<subDataset name="Dataset1" uuid="d50d967c-8a6d-4e1e-b44e-49261df940e9">
<queryString>
<![CDATA[]]>
</queryString>
<field name="nomeCliente" class="java.lang.String"/>
</subDataset>
<parameter name="dataSource" class="net.sf.jasperreports.engine.data.JRBeanCollectionDataSource"/>
<field name="id" class="java.lang.Integer"/>
<field name="nome" class="java.lang.String"/>
<field name="sexo" class="java.lang.Integer"/>
<field name="datanascimento" class="java.lang.String"/>
<field name="logradouro" class="java.lang.String"/>
<field name="numero" class="java.lang.Integer"/>
<field name="complemento" class="java.lang.String"/>
<field name="bairro" class="java.lang.String"/>
<field name="cidade" class="java.lang.String"/>
<field name="uf" class="java.lang.Integer"/>
<field name="cep" class="java.lang.String"/>
<field name="telefone" class="java.lang.String"/>
<field name="celular1" class="java.lang.String"/>
<field name="celular2" class="java.lang.String"/>
<field name="email1" class="java.lang.String"/>
<field name="email2" class="java.lang.String"/>
<group name="nome">
<groupExpression><![CDATA[$F{nomeCliente}]]></groupExpression>
</group>
<background>
<band splitType="Stretch"/>
</background>
<title>
<band height="23" splitType="Stretch">
<staticText>
<reportElement x="202" y="0" width="167" height="23" uuid="6ec26fa8-d021-455c-8bf5-b2716a0c7919"/>
<textElement>
<font size="16" isBold="true"/>
</textElement>
<text><![CDATA[Relatório de Clientes]]></text>
</staticText>
<image>
<reportElement x="1" y="-20" width="172" height="43" uuid="d382676c-4568-4b4f-b9a6-6e4741aab5ee"/>
<imageExpression><![CDATA["images/EstiloInstitutoBelezaLogo.png"]]></imageExpression>
</image>
</band>
</title>
<pageHeader>
<band height="20" splitType="Stretch">
<textField>
<reportElement x="435" y="0" width="80" height="20" uuid="06d08240-2804-45f3-8c68-199839537286"/>
<textElement textAlignment="Right"/>
<textFieldExpression><![CDATA["Página "+$V{PAGE_NUMBER}+" de"]]></textFieldExpression>
</textField>
<textField evaluationTime="Report">
<reportElement x="515" y="0" width="40" height="20" uuid="9db45469-0ec8-4a69-8e02-95ecd71639ce"/>
<textFieldExpression><![CDATA[" " + $V{PAGE_NUMBER}]]></textFieldExpression>
</textField>
</band>
</pageHeader>
<columnHeader>
<band height="14" splitType="Stretch">
<line>
<reportElement x="0" y="13" width="555" height="1" uuid="3d9ff8e2-9dfa-4e1a-bf04-4c08222532aa"/>
</line>
<line>
<reportElement x="198" y="0" width="1" height="13" uuid="3ccdd4cc-2dcc-4547-981a-7dd0c0795ef3"/>
</line>
<line>
<reportElement x="300" y="0" width="1" height="13" uuid="2c50fa85-487d-4595-9144-f78adb6d8f32"/>
</line>
<line>
<reportElement x="398" y="0" width="1" height="13" uuid="856b71be-60fd-450f-933e-b092ef412abb"/>
</line>
<staticText>
<reportElement x="0" y="0" width="202" height="14" uuid="36ac836a-63d7-47b5-82b1-c2fb15034dc6"/>
<text><![CDATA[Nome]]></text>
</staticText>
<staticText>
<reportElement x="202" y="0" width="100" height="14" uuid="8ff1d64c-ae30-4c97-a544-c6eb1989ce05"/>
<text><![CDATA[Data de Nascimento]]></text>
</staticText>
<staticText>
<reportElement x="402" y="0" width="100" height="14" uuid="01153fec-09ae-4945-b3cb-04c254fb0e65"/>
<text><![CDATA[Celular]]></text>
</staticText>
<staticText>
<reportElement x="302" y="0" width="100" height="14" uuid="5ab92c2e-f72c-442a-b321-d84841953aa3"/>
<text><![CDATA[Telefone]]></text>
</staticText>
</band>
</columnHeader>
<detail>
<band height="205" splitType="Stretch">
<line>
<reportElement x="0" y="13" width="555" height="1" uuid="ab35d598-27d4-4410-a86a-0876cf839aef"/>
</line>
<line>
<reportElement x="198" y="0" width="1" height="13" uuid="1dd11b36-1226-4917-a2b5-ae60c5c3ef8b"/>
</line>
<line>
<reportElement x="300" y="0" width="1" height="13" uuid="abef3282-f707-4dd8-bd23-a0a07ef60fb6"/>
</line>
<line>
<reportElement x="398" y="0" width="1" height="13" uuid="4b153f11-2e81-4f19-97d3-64f40cda5ffb"/>
</line>
<componentElement>
<reportElement x="1" y="0" width="554" height="13" uuid="21f104d0-3d32-4bf7-a5bf-a062dcb67f89">
<property name="com.jaspersoft.studio.layout" value="com.jaspersoft.studio.editor.layout.VerticalRowLayout"/>
<property name="com.jaspersoft.studio.table.style.table_header" value="Table 1_TH"/>
<property name="com.jaspersoft.studio.table.style.column_header" value="Table 1_CH"/>
<property name="com.jaspersoft.studio.table.style.detail" value="Table 1_TD"/>
</reportElement>
<jr:table xmlns:jr="http://jasperreports.sourceforge.net/jasperreports/components" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports/components http://jasperreports.sourceforge.net/xsd/components.xsd">
<datasetRun subDataset="Dataset1" uuid="ec5065e1-b31a-4ae5-8ad9-574969eadcfb">
<datasetParameter name="REPORT_DATA_SOURCE">
<datasetParameterExpression><![CDATA[$P{dataSource}]]></datasetParameterExpression>
</datasetParameter>
</datasetRun>
<jr:column width="554" uuid="c5e7b9ad-85cf-40fe-aa2d-8f8af92bab6f">
<jr:detailCell style="Table 1_TD" height="30">
<textField>
<reportElement x="0" y="0" width="554" height="30" uuid="ed6e2650-5949-404b-a542-05e79b134580"/>
<textFieldExpression><![CDATA[$F{nomeCliente}]]></textFieldExpression>
</textField>
</jr:detailCell>
</jr:column>
</jr:table>
</componentElement>
</band>
</detail>
<columnFooter>
<band splitType="Stretch"/>
</columnFooter>
<pageFooter>
<band height="20" splitType="Stretch">
<textField evaluationTime="Report">
<reportElement x="515" y="0" width="40" height="20" uuid="e564df6b-0f6f-4ea1-8a9d-aac36c0a1914"/>
<textFieldExpression><![CDATA[" " + $V{PAGE_NUMBER}]]></textFieldExpression>
</textField>
<textField>
<reportElement x="435" y="0" width="80" height="20" uuid="9cb91f0b-9fb2-475e-a59b-706eb9beccef"/>
<textElement textAlignment="Right"/>
<textFieldExpression><![CDATA["Página "+$V{PAGE_NUMBER}+" de"]]></textFieldExpression>
</textField>
</band>
</pageFooter>
<summary>
<band splitType="Stretch"/>
</summary>
</jasperReport>
Main.java
import java.util.ArrayList;
import java.util.List;
import br.com.cts.model.Cliente;
import br.com.cts.util.Report;
public class Main {
public static void main(String[] args) throws Exception {
Cliente cliente1 = new Cliente();
cliente1.setNomeCliente("John");
Cliente cliente2 = new Cliente();
cliente2.setNomeCliente("Mike");
List<Cliente> clientes = new ArrayList<>();
clientes.add(cliente1);
clientes.add(cliente2);
Report<Cliente> report = new Report<Cliente>();
report.getReport(clientes, "reports/clientereport.jrxml");
}
}
我得到以下错误:
net.sf.jasperreports.engine.design.JRValidationException: Report design not valid :
1. Field not found : nomeCliente
at net.sf.jasperreports.engine.design.JRAbstractCompiler.verifyDesign(JRAbstractCompiler.java:280)
at net.sf.jasperreports.engine.design.JRAbstractCompiler.compileReport(JRAbstractCompiler.java:152)
at net.sf.jasperreports.engine.JasperCompileManager.compile(JasperCompileManager.java:357)
at net.sf.jasperreports.engine.JasperCompileManager.compileReport(JasperCompileManager.java:617)
at br.com.cts.util.Report.getReport(Report.java:53)
at br.com.cts.main.Main.main(Main.java:23)
Exception in thread "main" java.lang.NullPointerException
at net.sf.jasperreports.engine.fill.JRFiller.createReportFiller(JRFiller.java:267)
at net.sf.jasperreports.engine.fill.JRFiller.fill(JRFiller.java:156)
at net.sf.jasperreports.engine.fill.JRFiller.fill(JRFiller.java:145)
at net.sf.jasperreports.engine.JasperFillManager.fill(JasperFillManager.java:689)
at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:1005)
at br.com.cts.util.Report.getReport(Report.java:68)
at br.com.cts.main.Main.main(Main.java:23)
我不知道我的代码有什么问题。
共有1个答案
穆正祥
看起来您正在尝试添加不属于的额外图层。您正在向报表传递一个数据源，即 List
你的主要报告应该有
<field name="nomeCliente" class="java.lang.String" />
它不应该具有您拥有的所有其他字段名，除非它们也是Cliente的一部分。
因此，您会收到错误，因为字段名称不在字段列表中，就像错误所暗示的那样。拥有子数据集的一个原因是，如果主数据源中有另一个列表（客户端中的另一个属性是列表）
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