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How to fill JasperReports report using spring data Jpa native query?

I am trying to fill the jasper report using customized sql qyery but I am getting this error:-
java.lang.NoSuchMethodException: Unknown property 'vehicle_class' on class 'class [Ljava.lang.Object;'
at org.apache.commons.beanutils.PropertyUtilsBean.getSimpleProperty(PropertyUtilsBean.java:1270) ~[commons-beanutils-1.9.4.jar:1.9.4]
at org.apache.commons.beanutils.PropertyUtilsBean.getNestedProperty(PropertyUtilsBean.java:809) ~[commons-beanutils-1.9.4.jar:1.9.4]
at org.apache.commons.beanutils.PropertyUtilsBean.getProperty(PropertyUtilsBean.java:885) ~[commons-beanutils-1.9.4.jar:1.9.4]
at org.apache.commons.beanutils.PropertyUtils.getProperty(PropertyUtils.java:464) ~[commons-beanutils-1.9.4.jar:1.9.4]
at net.sf.jasperreports.engine.data.JRAbstractBeanDataSource.getBeanProperty(JRAbstractBeanDataSource.java:185) ~[jasperreports-6.17.0.jar:6.17.0-6d93193241dd8cc42629e188b94f9e0bc5722efd]
at net.sf.jasperreports.engine.data.JRAbstractBeanDataSource.getFieldValue(JRAbstractBeanDataSource.java:170) ~[jasperreports-6.17.0.jar:6.17.0-6d93193241dd8cc42629e188b94f9e0bc5722efd]
This is my Jasper File
<?xml version="1.0" encoding="UTF-8"?>
<!-- Created with Jaspersoft Studio version 6.17.0.final using JasperReports Library version 6.17.0-6d93193241dd8cc42629e188b94f9e0bc5722efd -->
<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="ViolationClassAndAverageSpeed" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="dcaca94b-6e83-47dc-bd14-baca011b1845">
<style name="Table_TH" mode="Opaque" backcolor="#F0F8FF">
<box>
<pen lineWidth="0.5" lineColor="#000000"/>
</box>
</style>
<style name="Table_CH" mode="Opaque" backcolor="#BFE1FF">
<box>
<pen lineWidth="0.5" lineColor="#000000"/>
</box>
</style>
<style name="Table_TD" mode="Opaque" backcolor="#FFFFFF">
<box>
<pen lineWidth="0.5" lineColor="#000000"/>
</box>
</style>
<subDataset name="Dataset1" uuid="1f3f11d6-c688-4625-b387-2808efd481fc">
<queryString language="SQL">
<![CDATA[SELECT vehicle_class, COUNT(*)/SUM(1e0/speed) AS speed FROM violations GROUP BY vehicle_class]]>
</queryString>
<field name="vehicle_class" class="java.lang.String"/>
<field name="speed" class="java.lang.Double"/>
<group name="vehicle_class">
<groupExpression><![CDATA[$F{vehicle_class}]]></groupExpression>
</group>
</subDataset>
<queryString language="SQL">
<![CDATA[SELECT vehicle_class, COUNT(*)/SUM(1e0/speed) AS speed FROM violations GROUP BY vehicle_class]]>
</queryString>
<field name="vehicle_class" class="java.lang.String"/>
<field name="speed" class="java.lang.Double"/>
<group name="vehicle_class">
<groupExpression><![CDATA[$F{vehicle_class}]]></groupExpression>
</group>
<detail>
<band height="349" splitType="Stretch">
<componentElement>
<reportElement x="10" y="10" width="200" height="200" uuid="5df1aded-bce1-4d9a-8c73-1950d7161a02">
<property name="com.jaspersoft.studio.layout" value="com.jaspersoft.studio.editor.layout.VerticalRowLayout"/>
</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="a331d750-4a48-46e4-9f1c-cac4cfbf2e72">
<connectionExpression><![CDATA[$P{REPORT_CONNECTION}]]></connectionExpression>
</datasetRun>
<jr:column width="100" uuid="4545a2e7-6253-4848-a00b-063337993b35">
<jr:tableHeader style="Table_TH" height="30"/>
<jr:tableFooter style="Table_TH" height="30"/>
<jr:groupHeader groupName="vehicle_class">
<jr:cell style="Table_CH" height="30"/>
</jr:groupHeader>
<jr:groupFooter groupName="vehicle_class">
<jr:cell style="Table_CH" height="30"/>
</jr:groupFooter>
<jr:columnHeader style="Table_CH" height="30">
<staticText>
<reportElement x="0" y="0" width="100" height="30" uuid="ec2d5ab9-d65e-4485-acbc-a41aad6097d8"/>
<text><![CDATA[vehicle_class]]></text>
</staticText>
</jr:columnHeader>
<jr:columnFooter style="Table_CH" height="30"/>
<jr:detailCell style="Table_TD" height="30">
<textField>
<reportElement x="0" y="0" width="100" height="30" uuid="b46de1f3-0544-4e4b-a52e-0d46e5884010"/>
<textFieldExpression><![CDATA[$F{vehicle_class}]]></textFieldExpression>
</textField>
</jr:detailCell>
</jr:column>
<jr:column width="100" uuid="fdb570b8-20de-42d9-ba5a-38f593535eb7">
<jr:tableHeader style="Table_TH" height="30"/>
<jr:tableFooter style="Table_TH" height="30"/>
<jr:groupHeader groupName="vehicle_class">
<jr:cell style="Table_CH" height="30"/>
</jr:groupHeader>
<jr:groupFooter groupName="vehicle_class">
<jr:cell style="Table_CH" height="30"/>
</jr:groupFooter>
<jr:columnHeader style="Table_CH" height="30">
<staticText>
<reportElement x="0" y="0" width="100" height="30" uuid="2c555423-d793-45d4-96f0-e9603c6edac6"/>
<text><![CDATA[speed]]></text>
</staticText>
</jr:columnHeader>
<jr:columnFooter style="Table_CH" height="30"/>
<jr:detailCell style="Table_TD" height="30">
<textField>
<reportElement x="0" y="0" width="100" height="30" uuid="f5539efd-3550-4a93-9df1-3e172ce72d6a"/>
<textFieldExpression><![CDATA[$F{speed}]]></textFieldExpression>
</textField>
</jr:detailCell>
</jr:column>
</jr:table>
</componentElement>
</band>
</detail>
</jasperReport>
Repository
#Repository
public interface ViolationRepository extends JpaRepository<Violation, Long>{
#Query(value = "SELECT vehicle_class, COUNT(*)/SUM(1e0/speed) AS avg_speed FROM violations GROUP BY vehicle_class", nativeQuery = true)
List<Object> findCustomAll();
}
Controller Class
#RequestMapping( "/pdf")
public void getReportsinPDF(HttpServletResponse response) throws JRException, IOException {
InputStream jasperStream = (InputStream) this.getClass().getResourceAsStream("/ViolationClassAndAverageSpeed.jasper");
// Adding attribute names
Map<String, Object> params = new HashMap<>();
// Fetching the student from the data database.
final JRBeanCollectionDataSource source = new JRBeanCollectionDataSource(violationnService.getViolation());
JasperReport jasperReport = (JasperReport) JRLoader.loadObject(jasperStream);
JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, params, source);
response.setContentType("application/x-pdf");
response.setHeader("Content-disposition", "inline; filename=ViolationList.pdf");
final ServletOutputStream outStream = response.getOutputStream();
JasperExportManager.exportReportToPdfStream(jasperPrint, outStream);
}
Entity Class
#Entity
#Table(name = "violations")
public class Violation {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
#Column(name = "violation_id")
private long violation_id;
#Column(name = "speed", length = 3)
private Integer speed;
#Column(name = "vehicle_class", length = 10)
private String vehicle_class;
public String getVehicle_class() {
return vehicle_class;
}
public void setVehicle_class(String vehicle_class) {
this.vehicle_class = vehicle_class;
}
public Integer getSpeed() {
return speed;
}
public void setSpeed(Integer speed) {
this.speed = speed;
}
}
Service Class:
#Service
public class ViolationService {
#Autowired
private ViolationRepository violationRepo;
public List<Object> getViolation() {
return violationRepo.findCustomAll();
}
}
I'm using jdbc adapter and I am trying to fill jasper report using this query in my repository
SELECT vehicle_class, COUNT(*)/SUM(1e0/speed) AS speed FROM violations GROUP BY vehicle_class
I removed field description from report but its still not worth it.

Jasper Reports doesn't composite DataBean

I want to map my DataBean(TestModelA) to existing XML, but JasperReports gives me an exception. The problem is that I have custom field (TestModelB) and I have public getters and setters in that class, but jasper does not recognize them. How can i solve this problem?
TestModelA:
public class TestModelA {
private Long id;
private String label_key;
private TestModelB testModelB;
public TestModelA(Long id, String label_key, TestModelB testModelB) {
this.id = id;
this.label_key = label_key;
this.testModelB = testModelB;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getLabel_key() {
return label_key;
}
public void setLabel_key(String label_key) {
this.label_key = label_key;
}
public TestModelB getTestModelB() {
return testModelB;
}
public void setTestModelB(TestModelB testModelB) {
this.testModelB = testModelB;
}
}
TestModelB:
public class TestModelB {
private Long owner;
public TestModelB(Long owner) { this.owner = owner; }
public Long getOwner() {
return owner;
}
public void setOwner(Long owner) {
this.owner = owner;
}
}
My XML file:
<?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="report3" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="077cd490-b99c-4ed1-ad76-b15714625957">
<property name="ireport.zoom" value="2.1435888100000016"/>
<property name="ireport.x" value="94"/>
<property name="ireport.y" value="0"/>
<queryString>
<![CDATA[SELECT MODULE.ID, MODULE.LABEL_KEY, MODULE.OWNER FROM MODULE]]>
</queryString>
<field name="id" class="java.lang.Long"/>
<field name="label_key" class="java.lang.String"/>
<field name="owner" class="java.lang.Long"/>
<background>
<band splitType="Stretch"/>
</background>
<columnHeader>
<band height="21" splitType="Stretch">
<staticText>
<reportElement x="0" y="0" width="185" height="20" uuid="68ea9590-9d19-4bc5-9540-d059208b0ce8"/>
<text><![CDATA[id]]></text>
</staticText>
<staticText>
<reportElement x="185" y="0" width="185" height="20" uuid="325690ac-7218-4000-8ec6-a492d185477a"/>
<text><![CDATA[label_key]]></text>
</staticText>
<staticText>
<reportElement x="370" y="0" width="185" height="20" uuid="20521e4b-9057-42a9-8adc-10309abc8935"/>
<text><![CDATA[owner]]></text>
</staticText>
</band>
</columnHeader>
<detail>
<band height="23" splitType="Stretch">
<textField>
<reportElement x="0" y="0" width="185" height="20" uuid="11901f0e-b03d-47f8-a8aa-35bab36d26bf"/>
<textFieldExpression><![CDATA[$F{id}]]></textFieldExpression>
</textField>
<textField>
<reportElement x="185" y="0" width="185" height="20" uuid="b715cb6b-3650-4266-a1cf-552ee35bc08f"/>
<textFieldExpression><![CDATA[$F{label_key}]]></textFieldExpression>
</textField>
<textField>
<reportElement x="370" y="0" width="185" height="20" uuid="5c41b534-a74e-4b91-b35d-fcbb88789000"/>
<textFieldExpression><![CDATA[$F{owner}]]></textFieldExpression>
</textField>
</band>
</detail>
</jasperReport>
I am getting exception:
Exception in thread "main" net.sf.jasperreports.engine.JRException: Error retrieving field value from bean : owner
at net.sf.jasperreports.engine.data.JRAbstractBeanDataSource.getBeanProperty(JRAbstractBeanDataSource.java:123)
at net.sf.jasperreports.engine.data.JRAbstractBeanDataSource.getFieldValue(JRAbstractBeanDataSource.java:96)
at net.sf.jasperreports.engine.data.JRBeanCollectionDataSource.getFieldValue(JRBeanCollectionDataSource.java:100)
at net.sf.jasperreports.engine.fill.JRFillDataset.setOldValues(JRFillDataset.java:1330)
at net.sf.jasperreports.engine.fill.JRFillDataset.next(JRFillDataset.java:1231)
at net.sf.jasperreports.engine.fill.JRFillDataset.next(JRFillDataset.java:1207)
at net.sf.jasperreports.engine.fill.JRBaseFiller.next(JRBaseFiller.java:1554)
at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReport(JRVerticalFiller.java:149)
at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:909)
at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:841)
at net.sf.jasperreports.engine.fill.JRFiller.fill(JRFiller.java:88)
at net.sf.jasperreports.engine.JasperFillManager.fill(JasperFillManager.java:653)
at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:969)
at net.didorenko.Reporter.creatReport(Reporter.java:99)
at net.didorenko.Reporter.threeReport(Reporter.java:78)
at net.didorenko.Reporter.main(Reporter.java:28)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144)
Caused by: java.lang.NoSuchMethodException: Unknown property 'owner' on class 'class net.didorenko.model.TestModelA'
at org.apache.commons.beanutils.PropertyUtilsBean.getSimpleProperty(PropertyUtilsBean.java:1313)
at org.apache.commons.beanutils.PropertyUtilsBean.getNestedProperty(PropertyUtilsBean.java:762)
at org.apache.commons.beanutils.PropertyUtilsBean.getProperty(PropertyUtilsBean.java:837)
at org.apache.commons.beanutils.PropertyUtils.getProperty(PropertyUtils.java:426)
at net.sf.jasperreports.engine.data.JRAbstractBeanDataSource.getBeanProperty(JRAbstractBeanDataSource.java:111)
... 20 more

Your are passing TestModelA class as datasource you need either to create the method in this class or reference the method correctly from jasper report.
Solution 1 Create method in TestModelA
public Long getOwner() {
return getTestModelB().getOwner(); //Handle NullPointer?
}
Solution 2 Reference correctly in jrxml
<field name="testModelB" class="net.didorenko.model.TestModelB"/>
...
<textField>
<reportElement x="370" y="0" width="185" height="20" uuid="5c41b534-a74e-4b91-b35d-fcbb88789000"/>
<textFieldExpression><![CDATA[$F{testModelB}.getOwner()]]></textFieldExpression>
</textField>

Filling reports from json using JasperReports [duplicate]

This question already has answers here:
How to fill report using JSON datasource without getting null values?
(3 answers)
Closed 6 years ago.
I'm beginner with JasperReports ( first try ) so,
I set up my netbeans, and my first try using data from database was successful. But now I just want to create my report from json data using Jasper Reports in Netbeans And I think it's not like getting data from Database.
By the way I tried to edit my xml file and add this :
<textField>
<reportElement x="0" y="31" width="555" height="20" uuid="9678a129-61e8-4034-ab8e-739ee5723c87"/>
<textElement textAlignment="Right">
<font size="12" isBold="true"/>
</textElement>
<textFieldExpression><![CDATA[$F{nom}]]></textFieldExpression>
</textField>
But it gives me null in report.
Here is what I did in java side :
Map parametersMap = new HashMap();
parametersMap.put("name", json.getString("Name"));
parametersMap.put("start", json.getString("Start"));
parametersMap.put("end", json.getString("end"));
String report = "C:\\My\\Path\\toReport\\report1.jrxml";
JasperReport Jasp = JasperCompileManager.compileReport(report);
JasperPrint JASP_PRINT = JasperFillManager.fillReport(Jasp,parametersMap);
JasperViewer.viewReport(JASP_PRINT);
UPDATED:
Here is my Java code
public void start(Future<Void> startFuture){
String fileJSON = "C:\\Users\\PathToMyFile\\data.txt";
String file = "/Test1/:name";
Router router = Router.router(vertx);
router.route(file).handler(routingContext -> {
HttpServerResponse response = routingContext.response();
response.setChunked(true);
routingContext.vertx().setTimer(1000, tid -> routingContext.response().end());
});
vertx.createHttpServer()
.requestHandler(router::accept)
.listen(8089, "localhost", res -> {
if (res.succeeded())
startFuture.complete();
else
startFuture.fail(res.cause());
});
vertx.fileSystem().readFile(fileJSON, (AsyncResult<Buffer> result) -> {
if (result.succeeded()) {
JsonObject json = result.result().toJsonObject();
try{
Map parametersMap = new HashMap();
parametersMap.put("name",json.getString("name"));
parametersMap.put("start",json.getString("start"));
parametersMap.put("end",json.getString("end"));
String report = "C:\\Users\\pathToMyPackage\\report1.jrxml";
JasperReport Jasp = JasperCompileManager.compileReport(report);
JasperPrint JASP_PRINT = JasperFillManager.fillReport(Jasp,parametersMap);
JasperViewer.viewReport(JASP_PRINT);
And for my JRXML file :
<property name="ireport.zoom" value="1.0"/>
<property name="ireport.x" value="0"/>
<property name="ireport.y" value="0"/>
<queryString language="json">
<![CDATA[]]>
</queryString>
<field name="nom" class="java.lang.String">
<fieldDescription><![CDATA[name]]></fieldDescription>
</field>
<field name="dateDebut" class="java.lang.String">
<fieldDescription><![CDATA[start]]></fieldDescription>
</field>
<background>
<band splitType="Stretch"/>
</background>
<detail>
<band height="125" splitType="Stretch">
<textField>
<reportElement x="100" y="0" width="100" height="30" uuid="02b279da-3795-4655-8571-5a36a3ef378c"/>
<textFieldExpression><![CDATA[$F{name}]]></textFieldExpression>
</textField>
<staticText>
<reportElement x="0" y="0" width="100" height="30" uuid="671e61ad-8d8f-48cb-969f-78c05a516398"/>
<text><![CDATA[name]]></text>
</staticText>
<textField>
<reportElement x="100" y="30" width="100" height="30" uuid="9d53f46f-a252-48b3-9213-8c3092c29f49"/>
<textFieldExpression><![CDATA[$F{start}]]></textFieldExpression>
</textField>
<staticText>
<reportElement x="0" y="30" width="100" height="30" uuid="3b49affb-685a-4df2-a872-c0e6fdcab94b"/>
<text><![CDATA[start]]></text>
</staticText>
</band>
</detail>
And my JSON file :
{
"Name": "Test",
"Start": "16-06-2015",
"End":"16-06-2019"
}

You need to pass the data as a datasource, in json this is done by passing the stream through the parameter map (since you are using vertex, get the json in String format and then pass it as a stream).
Example
InputStream iostream = new ByteArrayInputStream(jsonString.getBytes(StandardCharsets.UTF_8));
parametersMap.put(JsonQueryExecuterFactory.JSON_INPUT_STREAM, iostream);
Then you can define the fields related to your json and json (xpath) query

.jrxml to .jasper compile error field not found exception

Hi i'm new to jasper report.i'm using ireport for designing report.
I have created a simple report design, which have 2 fields name,addr.
public class R {
private String name;
private String addr;
public R(String name, String addr) {
super();
this.name = name;
this.addr = addr;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getAddr() {
return addr;
}
public void setAddr(String addr) {
this.addr = addr;
}
}
.jrxml file
<?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="R" language="groovy" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="4fd2f78e-344d-4371-ba1e-f86c2a81ef75">
<property name="ireport.zoom" value="1.0"/>
<property name="ireport.x" value="0"/>
<property name="ireport.y" value="0"/>
<background>
<band splitType="Stretch"/>
</background>
<title>
<band height="79" splitType="Stretch"/>
</title>
<pageHeader>
<band height="35" splitType="Stretch"/>
</pageHeader>
<columnHeader>
<band height="61" splitType="Stretch">
<staticText>
<reportElement x="296" y="41" width="228" height="20" uuid="19aa39a0-45cf-4b36-b327-25b640f81d8a"/>
<textElement textAlignment="Center"/>
<text><![CDATA[Address]]></text>
</staticText>
<staticText>
<reportElement x="36" y="41" width="215" height="20" uuid="baba8372-2215-439d-8b20-fd4ab054bbe5"/>
<textElement textAlignment="Center"/>
<text><![CDATA[Name]]></text>
</staticText>
</band>
</columnHeader>
<detail>
<band height="125" splitType="Stretch">
<textField>
<reportElement x="296" y="0" width="228" height="20" uuid="c4de17e6-e5bc-4454-b38e-cc50acf18f0b"/>
<textFieldExpression><![CDATA[$F{addr}]]></textFieldExpression>
</textField>
<textField>
<reportElement x="36" y="0" width="215" height="20" uuid="8283d8b6-a288-48ec-bd4a-36c2875f5cff"/>
<textFieldExpression><![CDATA[$F{name}]]></textFieldExpression>
</textField>
</band>
</detail>
<columnFooter>
<band height="45" splitType="Stretch"/>
</columnFooter>
<pageFooter>
<band height="54" splitType="Stretch"/>
</pageFooter>
<summary>
<band height="42" splitType="Stretch"/>
</summary>
</jasperReport>
Here i'm using array list as a data source.
When i click compile button on i report it shows error that
net.sf.jasperreports.engine.design.JRValidationException: Report design not valid :       1. Field not found : addr      2. Field not found : name
java code
public void runReport(String fileName, String outFileName) throws JRException
{
List<R> list = new ArrayList<R>();
Map parameters = new HashMap();
list.add(new R("a1" ,"a2"));
list.add(new R("b1" ,"b2"));
list.add(new R("c1" ,"c2"));
JasperPrint print = JasperFillManager.fillReport( fileName, parameters, new JRBeanCollectionDataSource(list));
JRExporter exporter = new JRPdfExporter();
exporter.setParameter(
JRExporterParameter.OUTPUT_FILE_NAME,outFileName);
exporter.setParameter(
JRExporterParameter.JASPER_PRINT, print);
JasperExportManager.exportReportToPdfFile(print, outFileName);
print = null;
exporter = null;
}

You should add to your jrxml field:
<field name="addr" class="java.lang.String">
<fieldDescription><![CDATA[addr]]></fieldDescription></field>
You can do it by clicking on "fields" and selecting "create field".

Getting null values in report when using JavaBean Data Source

When I tried to generate a report by using JavaBean Data Source and displaying the bean's field values in the table, the PDF report is showing null values.
I have a simple bean (PersonBean) as follows:
public class PersonBean {
private String Field1;
private String Field2;
public String getField1() {
return Field1;
}
public void setField1(String field1) {
Field1 = field1;
}
public String getField2() {
return Field2;
}
public void setField2(String field2) {
Field2 = field2;
}
}
The Person class which populate and return the collection of bean is as follows:
import java.util.ArrayList;
import java.util.List;
public class Person {
public static java.util.List<PersonBean> getReportData() throws Exception {
List<PersonBean> personBeanList = null;
try {
personBeanList = new ArrayList<PersonBean>();
PersonBean personBean1 = new PersonBean();
personBean1.setField1("Hina");
personBean1.setField2("Sachdev");
personBeanList.add(personBean1);
PersonBean personBean2 = new PersonBean();
personBean2.setField1("Swathi");
personBean2.setField2("Singh");
personBeanList.add(personBean2);
} catch (Exception e) {
e.printStackTrace();
}
return personBeanList;
}
}
The PersonReport class which creates report is as follows:
import java.io.FileNotFoundException;
import java.util.*;
import net.sf.jasperreports.engine.*;
import net.sf.jasperreports.engine.data.JRBeanCollectionDataSource;
import net.sf.jasperreports.engine.design.JasperDesign;
import net.sf.jasperreports.engine.xml.JRXmlLoader;
import net.sf.jasperreports.view.JasperViewer;
public class PersonReport implements JRDataSource {
public static void main(String[] args) throws JRException, FileNotFoundException {
try {
Map<String, Object> params = new HashMap<String, Object>();
JasperDesign jasperDesign = JRXmlLoader.load("C:/Users/sachdevh/Desktop/reports/personReport.jrxml");
JasperReport jasperReport = JasperCompileManager.compileReport(jasperDesign);
JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, params,
new JRBeanCollectionDataSource(Person.getReportData()));
JasperExportManager.exportReportToPdfFile(jasperPrint, "./Util/bean.pdf");
JasperViewer.viewReport(jasperPrint);
} catch (Exception e) {
e.printStackTrace();
}
}
#Override
public Object getFieldValue(JRField arg0) throws JRException {
return null;
}
#Override
public boolean next() throws JRException {
return false;
}
}
By using iReport 4.6.0, I designed a report by inserting table component.
The jrxml file is as follows:
<?xml version="1.0" encoding="UTF-8"?>
<jasperReport ..>
<subDataset name="New Dataset 1" uuid="50bff6d9-9b98-444b-9851-bdd37ea570e4">
<queryString><![CDATA[]]></queryString>
<field name="field1" class="java.lang.String">
<fieldDescription><![CDATA[field1]]></fieldDescription>
</field>
<field name="field2" class="java.lang.String">
<fieldDescription><![CDATA[field2]]></fieldDescription>
</field>
</subDataset>
<parameter name="SUBREPORT_DIR" class="java.lang.String" isForPrompting="false">
<defaultValueExpression><![CDATA["C:\\Users\\sachdevh\\Desktop\\reports\\"]]></defaultValueExpression>
</parameter>
<parameter name="parameter1" class="java.lang.String">
<defaultValueExpression><![CDATA[$F{field1}]]></defaultValueExpression>
</parameter>
<queryString>
<![CDATA[]]>
</queryString>
<field name="field1" class="java.lang.String">
<fieldDescription><![CDATA[field1]]></fieldDescription>
</field>
<field name="field2" class="java.lang.String">
<fieldDescription><![CDATA[field2]]></fieldDescription>
</field>
<background>
<band splitType="Stretch"/>
</background>
<title>
<band height="79" splitType="Stretch"/>
</title>
<pageHeader>
<band height="35" splitType="Stretch"/>
</pageHeader>
<columnHeader>
<band height="61" splitType="Stretch">
<componentElement>
<reportElement uuid="b3e3e08d-91d9-4e01-ae74-abdfc270551a" key="table" x="0" y="0" width="555"
height="61"/>
<jr:table xmlns:jr="http://jasperreports.sourceforge.net/jasperreports/components"
xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports/components http://jasperreports.sourceforge.net/xsd/components.xsd">
<datasetRun subDataset="New Dataset 1" uuid="f5f39e4f-4349-4e5d-9736-03f84a7a7617">
<dataSourceExpression>
<![CDATA[new net.sf.jasperreports.engine.data.JRBeanCollectionDataSource(Person.getReportData())]]></dataSourceExpression>
</datasetRun>
<jr:column uuid="9e2a6076-7f96-40c8-86ae-318b521a4f81" width="90">
<jr:tableHeader height="30"/>
<jr:tableFooter height="30"/>
<jr:columnHeader height="30">
<staticText>
<reportElement uuid="99411482-c1d5-44fa-aef7-9d9f4bf392ec" x="0" y="0" width="90"
height="30"/>
<textElement/>
<text><![CDATA[field1]]></text>
</staticText>
</jr:columnHeader>
<jr:columnFooter height="30"/>
<jr:detailCell height="20">
<textField>
<reportElement uuid="74861d9e-48a8-47ce-a477-81d4f497d483" x="0" y="0" width="90"
height="20"/>
<textElement/>
<textFieldExpression><![CDATA[$F{field1}]]></textFieldExpression>
</textField>
</jr:detailCell>
</jr:column>
<jr:column uuid="84c3b078-0114-452e-b3a3-f1c7dcd1b8cb" width="90">
<jr:tableHeader height="30"/>
<jr:tableFooter height="30"/>
<jr:columnHeader height="30">
<staticText>
<reportElement uuid="cb87f1a0-bbbf-40b2-bb19-292ecf8d9a18" x="0" y="0" width="90"
height="30"/>
<textElement/>
<text><![CDATA[field2]]></text>
</staticText>
</jr:columnHeader>
<jr:columnFooter height="30"/>
<jr:detailCell height="20">
<textField>
<reportElement uuid="84fd788f-24e8-4dfa-8c83-ce388c663f45" x="0" y="0" width="90"
height="20"/>
<textElement/>
<textFieldExpression><![CDATA[$F{field2}]]></textFieldExpression>
</textField>
</jr:detailCell>
</jr:column>
</jr:table>
</componentElement>
</band>
</columnHeader>
<detail>
<band height="125" splitType="Stretch"/>
</detail>
<columnFooter>
<band height="45" splitType="Stretch"/>
</columnFooter>
<pageFooter>
<band height="54" splitType="Stretch"/>
</pageFooter>
<summary>
<band height="42" splitType="Stretch"/>
</summary>
</jasperReport>
I think the datasource expression below
<dataSourceExpression><![CDATA[new net.sf.jasperreports.engine.data.JRBeanCollectionDataSource(Person.getReportData())]]></dataSourceExpression>

You can solve this issue in two steps:
Move table component to the Title band (now it lies in Column Header band) - to prevent occurring of net.sf.jasperreports.engine.JRRuntimeException: Infinite loop creating new page due to column header overflow exception in cases when datasource has a lot of elements;
Change the table's subDataset dataSourceExpression to value below, that is relevant to your Java code:
<datasetRun subDataset="New Dataset 1" uuid="f5f39e4f-4349-4e5d-9736-03f84a7a7617">
<dataSourceExpression><![CDATA[$P{REPORT_DATA_SOURCE}]]></dataSourceExpression>
</datasetRun>