In my web application I’m generating some reports with JasperReports. In my managed bean i have the following report generation code:
public void generateReport(ActionEvent e) { // Inside a Managed Bean
try {
pathReport = ReportHelper.reportPath(FacesContext.getCurrentInstance(), "rep_attendees.jasper");
Map<String, Object> param = new HashMap<String, Object>();
param.put("EVENT_ID", getEvent().getId());
param.put("START_DATE", null);
param.put("END_DATE", null);
try {
Properties connectionProps = new Properties();
connectionProps.put("user", "root");
Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/MyDB", connectionProps);
pdfFile = ReportHelper.generateReport(pathRelatorio, parametros, con);
} catch (Exception ex) {
log.error(ex.getMessage());
}
} catch (Exception ex) {
log.error(ex.getMessage());
}
}
Code for the ReportHelper:
public class ReportHelper {
private static final Logger log = Logger.getLogger(RelatorioHelper.class);
public static byte[] generateReport(String path, Map<String, Object> param, Connection con) throws FileNotFoundException, JRException, Exception {
JasperReport rep = null; // 1
JasperPrint print = null; // 2
byte[] pdf = null; // 3
try {
rep = buildReport(path); // 4
print = loadReport(rep, param, con); // 5 NEVER RETURNS
pdf = JasperExportManager.exportReportToPdf(print); // 6 Don't reach this line
} catch (Exception e) {
log.error(e.getMessage());
throw e;
}
return pdf;
}
public static String reportPath(FacesContext context, String reportName) {
String repPath = ((ServletContext) context.getExternalContext().getContext()).getRealPath("/resources/reports/") + "/" + reportName;
return repPath;
}
private static JasperReport buildReport(String path) throws FileNotFoundException, JRException {
return (JasperReport) JRLoader.loadObject(new File(path));
}
private static JasperPrint loadReport(JasperReport report, Map<String, Object> param, Connection con) throws JRException {
return JasperFillManager.fillReport(report, param, con);
}
}
Here is the report 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="SisEventos_RelatorioEvento" language="groovy" 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="DATA_INICIO" class="java.util.Date" isForPrompting="false">
<defaultValueExpression><![CDATA[null]]></defaultValueExpression>
</parameter>
<parameter name="DATA_TERMINO" class="java.util.Date" isForPrompting="false">
<defaultValueExpression><![CDATA[null]]></defaultValueExpression>
</parameter>
<parameter name="ID_EVENTO" class="java.lang.Integer" isForPrompting="false">
<defaultValueExpression><![CDATA[1]]></defaultValueExpression>
</parameter>
<queryString>
<![CDATA[select idt_evento, nme_evento, dta_inicio_evento, dta_termino_evento, nme_participante, eml_participante from tb_inscricao as t1
inner join tb_evento as t2 on t1.cod_evento = t2.idt_evento
inner join tb_participante as t3 on t1.cod_participante = t3.idt_participante
where (t1.cod_evento = $P{ID_EVENTO} and $P{DATA_INICIO} is not null and $P{DATA_TERMINO} is not null and t2.dta_inicio_evento between $P{DATA_INICIO} and $P{DATA_TERMINO}) or (t1.cod_evento = $P{ID_EVENTO} and $P{DATA_INICIO} is null and $P{DATA_TERMINO} is not null and t2.dta_termino_evento <= $P{DATA_TERMINO}) or (t1.cod_evento = $P{ID_EVENTO} and $P{DATA_INICIO} is not null and $P{DATA_TERMINO} is null and t2.dta_inicio_evento >= $P{DATA_INICIO}) or (t1.cod_evento = $P{ID_EVENTO} and $P{DATA_INICIO} is null and $P{DATA_TERMINO} is null)
group by t2.nme_evento order by t2.dta_inicio_evento asc;]]>
</queryString>
<field name="idt_evento" class="java.lang.Integer"/>
<field name="nme_evento" class="java.lang.String"/>
<field name="dta_inicio_evento" class="java.sql.Timestamp"/>
<field name="dta_termino_evento" class="java.sql.Timestamp"/>
<field name="nme_participante" class="java.lang.String"/>
<field name="eml_participante" class="java.lang.String"/>
<group name="gEventos">
<groupExpression><![CDATA[$F{nme_evento}]]></groupExpression>
<groupHeader>
<band height="42">
<rectangle>
<reportElement x="25" y="21" width="530" height="20" forecolor="#666666" backcolor="#666666"/>
</rectangle>
<staticText>
<reportElement x="35" y="21" width="267" height="20" forecolor="#FFFFFF"/>
<textElement textAlignment="Left" verticalAlignment="Middle"/>
<text><![CDATA[Participante]]></text>
</staticText>
<staticText>
<reportElement x="302" y="21" width="186" height="20" forecolor="#FFFFFF"/>
<textElement textAlignment="Left" verticalAlignment="Middle"/>
<text><![CDATA[E-mail]]></text>
</staticText>
<staticText>
<reportElement x="488" y="21" width="68" height="20" forecolor="#FFFFFF"/>
<textElement textAlignment="Left" verticalAlignment="Middle"/>
<text><![CDATA[Presente]]></text>
</staticText>
<textField isStretchWithOverflow="true">
<reportElement x="0" y="1" width="270" height="20"/>
<textElement>
<font size="14" isBold="true"/>
</textElement>
<textFieldExpression><![CDATA["Evento: " + $F{nme_evento}]]></textFieldExpression>
</textField>
<line>
<reportElement x="270" y="12" width="280" height="1"/>
</line>
</band>
</groupHeader>
<groupFooter>
<band height="50"/>
</groupFooter>
</group>
<background>
<band splitType="Stretch"/>
</background>
<title>
<band height="60" splitType="Stretch">
<rectangle>
<reportElement x="0" y="0" width="200" height="60" forecolor="#E6E6E6" backcolor="#E6E6E6"/>
</rectangle>
<staticText>
<reportElement x="0" y="0" width="200" height="60" forecolor="#666666" backcolor="#FFFFFF"/>
<textElement textAlignment="Center" verticalAlignment="Middle">
<font fontName="Arial" size="30"/>
</textElement>
<text><![CDATA[SisEventos]]></text>
</staticText>
<staticText>
<reportElement x="200" y="35" width="355" height="25"/>
<textElement textAlignment="Right" verticalAlignment="Middle">
<font fontName="Arial" size="18" isBold="true" isUnderline="false"/>
</textElement>
<text><![CDATA[Relatório de Participantes dos Eventos]]> </text>
</staticText>
<line>
<reportElement x="200" y="59" width="355" height="1"/>
</line>
</band>
</title>
<pageHeader>
<band height="30" splitType="Stretch">
<staticText>
<reportElement x="0" y="5" width="80" height="20"/>
<textElement>
<font isBold="true"/>
</textElement>
<text><![CDATA[Filtro: ]]></text>
</staticText>
<textField isStretchWithOverflow="true">
<reportElement x="80" y="5" width="475" height="20"/>
<textElement/>
<textFieldExpression><![CDATA["Data de início: " + (($P{DATA_INICIO} != null) ? $P{DATA_INICIO}.toLocaleString().substring(0, 10) : "Não informada") + " - Data de término: " + (($P{DATA_TERMINO} != null) ? $P{DATA_TERMINO}.toLocaleString().substring(0, 10) : "Não informada")]]></textFieldExpression>
</textField>
</band>
</pageHeader>
<columnHeader>
<band splitType="Stretch"/>
</columnHeader>
<detail>
<band height="20" splitType="Stretch">
<rectangle>
<reportElement x="25" y="0" width="530" height="20" forecolor="#E6E6E6" backcolor="#E6E6E6">
<printWhenExpression><![CDATA[$V{COLUMN_COUNT}%2==0]]></printWhenExpression>
</reportElement>
</rectangle>
<textField isStretchWithOverflow="true">
<reportElement x="34" y="0" width="267" height="20"/>
<textElement textAlignment="Left" verticalAlignment="Middle"/>
<textFieldExpression><![CDATA[$F{nme_participante}]]></textFieldExpression>
</textField>
<textField isStretchWithOverflow="true">
<reportElement x="302" y="0" width="185" height="20"/>
<textElement verticalAlignment="Middle"/>
<textFieldExpression><![CDATA[$F{eml_participante}]]></textFieldExpression>
</textField>
<rectangle radius="10">
<reportElement x="500" y="2" width="15" height="15"/>
</rectangle>
</band>
</detail>
<columnFooter>
<band splitType="Stretch"/>
</columnFooter>
<pageFooter>
<band height="20" splitType="Stretch">
<textField>
<reportElement x="355" y="0" width="200" height="20"/>
<textElement textAlignment="Right" verticalAlignment="Middle"/>
<textFieldExpression><![CDATA["Página "+$V{PAGE_NUMBER}+" de "+ $V{PAGE_NUMBER}]]></textFieldExpression>
</textField>
<textField isStretchWithOverflow="true" pattern="EEE, dd MMM yyyy - HH:mm:ss" isBlankWhenNull="true">
<reportElement x="0" y="0" width="200" height="20"/>
<textElement verticalAlignment="Middle"/>
<textFieldExpression><![CDATA["Impresso em: " + new java.util.Date().toLocaleString()]]></textFieldExpression>
</textField>
<line>
<reportElement x="0" y="0" width="555" height="1"/>
</line>
</band>
</pageFooter>
<summary>
<band splitType="Stretch"/>
</summary>
</jasperReport>
When he reaches the line 4, a strange thing happens: a tool named org.apache.cataline.startup.bootstrap opens up in my Dock. But when he reaches line 5 and executes, the applications seems to stuck and doesn’t responds. Ok another thing is: i’m using hibernate. How could i get the Connection object (to pass him through the JasperFillManager.fillReport(rep, param, con)) from Hibernate?
ramkitech.com has found the error! In my application i’m using Maven and the following dependency artifact was being used to import the jasper reports library:
But i also need the following dependencies:
And if you are using groovy as a language (as in my case) in Report then you need to add: