i'm trying to develop a web app for reporting, and have built a site with EJB3 + primefaces already. Now i'm head aching how to integrate Jasperreport into primefaces... I found no guide or discussion about this topic, I wonder is it not possible? or actually it is not a right way to do? I'm actually quite new to develop JavaEE6, dont plan to use frameworks like spring and seam yet.
model
#Stateless
#LocalBean
public class BookEJB {
// #Override
public void printReport() throws ClassNotFoundException, IOException, JRException, SQLException {
Connection connection;
Map parameterMap = new HashMap();
FacesContext ctx = FacesContext.getCurrentInstance();
HttpServletResponse response = (HttpServletResponse) ctx
.getExternalContext().getResponse();
InputStream reportStream = ctx.getExternalContext()
.getResourceAsStream("reports/report1.jasper");
ServletOutputStream servletOutputStream = response.getOutputStream();
Class.forName("com.mysql.jdbc.Driver");
connection = DriverManager.getConnection("jdbc:mysql://localhost/bookdb?user=root&password=******");
ctx.responseComplete();
response.setContentType("application/pdf");
JasperRunManager.runReportToPdfStream(reportStream, servletOutputStream, parameterMap, connection);
connection.close();
servletOutputStream.flush();
servletOutputStream.close();
}
}
Controller
#ManagedBean(name = "bookCtrl")
#RequestScoped
public class BookController {
#EJB
private BookEJB bookEJB;
public void doPrintReport() throws ClassNotFoundException, IOException, JRException, SQLException {
bookEJB.printReport();
}
}
view (JSF)
<body>
<f:view>
<h:outputText value="Click on the link below to generate the report." />
<h:form>
<h:commandButton action="#{bookCtrl.doPrintReport}" value="Generate Report" />
</h:form>
</f:view>
</body>
Jasper
<?xml version="1.0" encoding="UTF-8"?>
<!-- Created with Jaspersoft Studio -->
<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="report1" 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"/>
<queryString language="SQL">
<![CDATA[SELECT
*
FROM
`book` book]]>
</queryString>
<field name="Id" class="java.lang.Integer"/>
<field name="title" class="java.lang.String"/>
<field name="price" class="java.lang.String"/>
<background>
<band splitType="Stretch"/>
</background>
<title>
<band height="45" splitType="Stretch"/>
</title>
<pageHeader>
<band height="35" splitType="Stretch"/>
</pageHeader>
<columnHeader>
<band height="21" splitType="Stretch">
<staticText>
<reportElement x="0" y="0" width="100" height="20"/>
<textElement/>
<text><![CDATA[Id]]></text>
</staticText>
<staticText>
<reportElement x="100" y="0" width="100" height="20"/>
<textElement/>
<text><![CDATA[title]]></text>
</staticText>
<staticText>
<reportElement x="200" y="0" width="100" height="20"/>
<textElement/>
<text><![CDATA[price]]></text>
</staticText>
</band>
</columnHeader>
<detail>
<band height="24" splitType="Stretch">
<textField>
<reportElement x="0" y="0" width="100" height="20"/>
<textElement/>
<textFieldExpression class="java.lang.Integer"><![CDATA[$F{Id}]]></textFieldExpression>
</textField>
<textField>
<reportElement x="100" y="0" width="100" height="20"/>
<textElement/>
<textFieldExpression class="java.lang.String"><![CDATA[$F{title}]]></textFieldExpression>
</textField>
<textField>
<reportElement x="200" y="0" width="100" height="20"/>
<textElement/>
<textFieldExpression class="java.lang.String"><![CDATA[$F{price}]]></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>
The error occurred when I click the button of JSF, below log is from glassfish
WARNING: A system exception occurred during an invocation on EJB BookEJB method public void blah.BookEJB.printReport() throws java.lang.ClassNotFoundException,java.io.IOException,net.sf.jasperreports.engine.JRException,java.sql.SQLException
javax.ejb.EJBException.....
SEVERE: javax.ejb.EJBException
javax.faces.el.EvaluationException: javax.ejb.EJBException
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:102)
WARNING: #{bookCtrl.doPrintReport}: javax.ejb.EJBException
javax.faces.FacesException: #{bookCtrl.doPrintReport}: javax.ejb.EJBException...
Caused by: javax.faces.el.EvaluationException: javax.ejb.EJBException...
SEVERE: javax.faces.FacesException: #{bookCtrl.doPrintReport}: javax.ejb.EJBException...
Caused by: javax.faces.FacesException: #{bookCtrl.doPrintReport}: javax.ejb.EJBException...
Caused by: javax.faces.el.EvaluationException: javax.ejb.EJBException...
Caused by: javax.ejb.EJBException...
Caused by: java.lang.NullPointerException...
WARNING: StandardWrapperValve[Faces Servlet]: PWC1406: Servlet.service() for servlet Faces Servlet threw exception
java.lang.IllegalStateException: PWC3991: getOutputStream() has already been called for this response.....
WARNING: StandardWrapperValve[Faces Servlet]: PWC1406: Servlet.service() for servlet Faces Servlet threw exception
java.lang.IllegalStateException: PWC3991: getOutputStream() has already been called for this response.....
WARNING: StandardWrapperValve[Faces Servlet]: PWC1406: Servlet.service() for servlet Faces Servlet threw exception
java.lang.IllegalStateException: PWC3991: getOutputStream() has already been called for this response.....
Have you tried using the p:fileDownload component inside your commandLink?
See:
http://www.primefaces.org/showcase/ui/fileDownload.jsf
That way, instead of messing around with responseComplete or having to make a separate servlet, you just have another controller/managed bean method that returns an instance of StreamedContent (primefaces class).
You are modifying the response after "responseComplete()". Calling "responseComplete()" should be the last thing you do.
Best way to deal with jasper-methods is to disable ajax in the commandButton/commandLink. Thats how it is possible to stay with the Jasper-conversion.
<p:commandButton title="EK Preview" icon="fa fa-file-pdf-o" actionListener="#{ctrlFiDoc.doReport_PC}" ajax="false"/>
There is no need to stay strictly to the p:fileDownload-element if its not necessary.
Probably this line is causing the issue:
InputStream reportStream = ctx.getExternalContext()
.getResourceAsStream("reports/report1.jasper");
See this question
Related
I am trying to build a sample web application which loads a pdf report generated through jasper reports (.jasper file). However the report does not open as a pdf with the message "This PDF document might not be displayed correctly".
The code snippets are as below. There is no exception log coming in the server log. Any help would be great. Thanks.
Servlet Controller Class
#WebServlet("/generateReport")
public class JasperReportsExample extends HttpServlet{
final String deviceJasper = "SampleReport.jasper";
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws IOException, ServletException {
response.setContentType("application/pdf");
response.setCharacterEncoding("UTF-8");
try{
List<SampleReportBean> sampleReportBeanList = new ArrayList<SampleReportBean>();
SampleReportBean bean = new SampleReportBean();
bean.setName("Hello");
sampleReportBeanList.add(bean);
InputStream is = this.getClass().getClassLoader().getResourceAsStream(deviceJasper);
JasperReport jasperReport = (JasperReport) JRLoader.loadObject(is);
JRBeanCollectionDataSource beanCollectionDataSource = new JRBeanCollectionDataSource(sampleReportBeanList);
Map<String, Object> parameters = new HashMap<String, Object>();
JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, parameters, beanCollectionDataSource);
JasperExportManager.exportReportToPdfFile(jasperPrint, deviceJasper);
}catch(Exception e) {
System.out.println("Error:while creating jasper report....");
e.printStackTrace();
}
}
}
html page
<form action="/samplejasperreport/generateReport" method="get">
<div>
<input type="submit" name="Generate Report" value="Generate Report">
</div>
</form>
SampleReport.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="SampleReport" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="038b20ef-43f5-4f05-8318-627e403a7110">
<property name="com.jaspersoft.studio.data.defaultdataadapter" value="JavaBean Adapter"/>
<queryString>
<![CDATA[]]>
</queryString>
<field name="name" class="java.lang.String">
<fieldDescription><![CDATA[name]]></fieldDescription>
</field>
<background>
<band splitType="Stretch"/>
</background>
<title>
<band splitType="Stretch"/>
</title>
<pageHeader>
<band splitType="Stretch"/>
</pageHeader>
<columnHeader>
<band splitType="Stretch"/>
</columnHeader>
<detail>
<band height="31" splitType="Stretch">
<textField>
<reportElement x="150" y="0" width="140" height="30" isPrintWhenDetailOverflows="true" uuid="f6eec303-affe-4804-bb6a-e5c07516a46f"/>
<textElement textAlignment="Center">
<font size="22"/>
</textElement>
<textFieldExpression><![CDATA[$F{name}]]></textFieldExpression>
</textField>
</band>
</detail>
<columnFooter>
<band splitType="Stretch"/>
</columnFooter>
<pageFooter>
<band height="1" splitType="Stretch"/>
</pageFooter>
<summary>
<band splitType="Stretch"/>
</summary>
</jasperReport>
Directory structure image
Error screen:
Thanks to AlexK:
JasperExportManager.exportReportToPdfStream(jasperPrint, response.getOutputStream());//send the pdfstream to the browser
My jrxml and java code below . I am trying to create report with some text and values . However blank report is generated . I am pasing map to fill the report as parameter . I have to add 4-5 static lines and then one dynamic variable . I have added these thing in detailed band .whats wrong
<?xml version="1.0" encoding="UTF-8" ?>
<!-- Created with iReport - A designer for JasperReports -->
<!DOCTYPE jasperReport PUBLIC "//JasperReports//DTD Report Design//EN" "http://jasperreports.sourceforge.net/dtds/jasperreport.dtd">
<jasperReport
name="Untitled_report_2"
columnCount="1"
printOrder="Vertical"
orientation="Portrait"
pageWidth="595"
pageHeight="842"
columnWidth="535"
columnSpacing="0"
leftMargin="30"
rightMargin="30"
topMargin="20"
bottomMargin="20"
whenNoDataType="NoPages"
isTitleNewPage="false"
isSummaryNewPage="false">
<property name="ireport.scriptlethandling" value="0" />
<property name="ireport.encoding" value="UTF-8" />
<import value="java.util.*" />
<import value="net.sf.jasperreports.engine.*" />
<import value="net.sf.jasperreports.engine.data.*" />
<field name="Field" class="java.lang.String"/>
<background>
<band height="0" isSplitAllowed="true" >
</band>
</background>
<title>
<band height="50" isSplitAllowed="true" >
</band>
</title>
<pageHeader>
<band height="50" isSplitAllowed="true" >
</band>
</pageHeader>
<columnHeader>
<band height="30" isSplitAllowed="true" >
</band>
</columnHeader>
<detail>
<band height="100" isSplitAllowed="true" >
<staticText>
<reportElement
x="20"
y="10"
width="180"
height="30"
key="staticText-1"/>
<box></box>
<textElement>
<font/>
</textElement>
<text><![CDATA[4-5 lines text]]></text>
</staticText>
<textField isStretchWithOverflow="false" isBlankWhenNull="false" evaluationTime="Now" hyperlinkType="None" hyperlinkTarget="Self" >
<reportElement
x="20"
y="40"
width="60"
height="20"
key="textField-1"/>
<box></box>
<textElement>
<font/>
</textElement>
<textFieldExpression class="java.lang.String"><![CDATA[$F{Field}]]></textFieldExpression>
</textField>
<staticText>
<reportElement
x="20"
y="70"
width="160"
height="30"
key="staticText-2"/>
<box></box>
<textElement>
<font/>
</textElement>
<text><![CDATA[4-5 lines text]]></text>
</staticText>
</band>
</detail>
<columnFooter>
<band height="30" isSplitAllowed="true" >
</band>
</columnFooter>
<pageFooter>
<band height="50" isSplitAllowed="true" >
</band>
</pageFooter>
<lastPageFooter>
<band height="50" isSplitAllowed="true" >
</band>
</lastPageFooter>
<summary>
<band height="50" isSplitAllowed="true" >
</band>
</summary>
</jasperReport>
Java code :
InputStream fileInput = getApplicationContext().getResource("/WEB-INF/reports/myjrxml.jrxml").getInputStream();
JasperReport jasperReport = JasperCompileManager.compileReport(fileInput);
HashMap map = new HashMap();
map.put("Field", "test");
JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, map);
byte[] output1 = JasperExportManager.exportReportToPdf(jasperPrint);
String filename = "d:/test.pdf";
FileOutputStream fo = new FileOutputStream(filename);
fo.write(output1);
fo.close();
You are confusing the report data with parameters. I don't see that you have any report data, which is why you are getting an empty report. Further, you are filling a parameter named "Field" instead of the actual report data. So you either need to create a parameter called "Field" in your report, and then refer to it in the detail band, OR you need to pass the report data into your report something like
JRBeanCollectionDataSource data = new JRBeanCollectionDataSource(dataSet);
jasperPrint = JasperFillManager.fillReport(jasperReport, parameterMap, data);
where dataSet is a collection, such as List<?>. Within the List, you would have an object where one of the properties is Field.
I had also blank page (pdf). Even for the simplest report.Until I sent empty datasource (new JREmptyDataSource())!
This solved my problem:
Map<String, Object> param = new HashMap<>();
param.put("SOME_PARAM","something");
JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, param, new JREmptyDataSource());
Explanation here.
By default, when no datasource info is present in a report, JR generates no pages.
I'm wondering if there is a way to make a table like this using the JapserReports CrossTab or in any other way where the row group is the field value7.
The DataSet used is a JRBeanCollectionDataSource(list of SubViews).
Where SubView is:
public class SubView{
//...
private String value1;
private String value2;
private String value3;
private String value4;
private String value5;
private String value6;
private String value7;
//...getters and setters...
}
Note that there is no need of a column group, but jasper doesn't compile successfully if I don't configure a column group (error message: Crosstab should have at least one column group).
This to me does not seem like a crosstab problem. Crosstab's are used when the columns are dynamic, hence your error message
Crosstab should have at least one column group.
since there is "no need of a column group" the result is achived using the normal detail band and grouping on value7.
So after you put the labels in the columnHeader and the values 1-6 in the detail band you add a grouping on value7 with a groupHeader band
Example (I have only included until value 3 in detail band to sorten the answer
<?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="report2" printOrder="Horizontal" pageWidth="595" pageHeight="842" whenNoDataType="AllSectionsNoDetail" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" isFloatColumnFooter="true" uuid="8944f542-2955-4224-933c-5a87fd36f527">
<queryString>
<![CDATA[]]>
</queryString>
<field name="value1" class="java.lang.String"/>
<field name="value2" class="java.lang.String"/>
<field name="value3" class="java.lang.String"/>
<field name="value7" class="java.lang.String"/>
<group name="Value7">
<groupExpression><![CDATA[$F{value7}]]></groupExpression>
<groupHeader>
<band height="21">
<textField>
<reportElement x="0" y="0" width="300" height="20" uuid="208ca6e5-b396-47cb-858b-71039f5bdf7a"/>
<textFieldExpression><![CDATA["Value 7: " + $F{value7}]]></textFieldExpression>
</textField>
</band>
</groupHeader>
</group>
<background>
<band/>
</background>
<columnHeader>
<band height="50">
<staticText>
<reportElement x="0" y="30" width="100" height="20" uuid="edf0f0f1-c979-4d20-987e-e8decb0b584a"/>
<text><![CDATA[value1]]></text>
</staticText>
<staticText>
<reportElement x="100" y="30" width="100" height="20" uuid="4287323f-e6d3-40d8-a2d4-44981bfa5c59"/>
<text><![CDATA[value2]]></text>
</staticText>
<staticText>
<reportElement x="200" y="30" width="100" height="20" uuid="b9aa7dfd-edd8-439b-b4c7-12916a740da8"/>
<text><![CDATA[value3]]></text>
</staticText>
</band>
</columnHeader>
<detail>
<band height="24">
<textField>
<reportElement x="0" y="0" width="100" height="20" uuid="2bcc436d-4c3a-4db1-a2ea-87edf92af98f"/>
<textFieldExpression><![CDATA[$F{value1}]]></textFieldExpression>
</textField>
<textField>
<reportElement x="100" y="0" width="100" height="20" uuid="f893721e-1aa6-44ca-9a9a-ac795ff63a0a"/>
<textFieldExpression><![CDATA[$F{value2}]]></textFieldExpression>
</textField>
<textField>
<reportElement x="200" y="0" width="100" height="20" uuid="36ad9612-620b-4eec-9608-f26b5306b01a"/>
<textFieldExpression><![CDATA[$F{value3}]]></textFieldExpression>
</textField>
</band>
</detail>
</jasperReport>
If you like to use crosstab anyway, you need to setup your dataset differently (since also columns become dynamic) check out this for examples: crosstab example
I generated PDF report using ireport designer tool. Upto here it is fine.
My question is :
If there is no data in the database then it is showing blank pdf page. At this time how can i show "No data found for this request" in pdf?
There is a property of the template WhenNoDataType.
Just set it to WhenNoDataType: AllSectionsNoDetail.
This will have the template(static fields) but no dynamic data from database.
If you just want to print some message than you will have to change the design up a bit. You would need to place a condition at the beginning of your report to check if data is coming from database, and act accordingly.
If you want to show none of the content of your report when there is no data (no title, headers, footers, etc.) then you should add a noData band to your report and put the message there. Then change the whenNoDataType report parameter to NoDataSection.
From the JasperReports Ultimate Guide:
If the <noData> section is defined in the report template, and if the data source is empty, then the <noData> section will be the only one taken into account at fill time
Example:
<?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="report1"
whenNoDataType="NoDataSection">
<pageHeader>
<band height="20">
<staticText>
<reportElement x="0" y="0" width="100" height="20"/>
<text><![CDATA[Page Header]]></text>
</staticText>
</band>
</pageHeader>
<detail>
<band height="20">
<staticText>
<reportElement x="0" y="0" width="100" height="20"/>
<text><![CDATA[Detail]]></text>
</staticText>
</band>
</detail>
<pageFooter>
<band height="20">
<staticText>
<reportElement x="0" y="0" width="100" height="20"/>
<text><![CDATA[Page Footer]]></text>
</staticText>
</band>
</pageFooter>
<noData>
<band height="20">
<staticText>
<reportElement x="0" y="0" width="555" height="20"/>
<text><![CDATA[No data found for this request]]></text>
</staticText>
</band>
</noData>
</jasperReport>
I'm trying to attach a call to a Java library into the iReport expression.
I tried this with a very simple library returning a hello world string.
package utils;
public class Hello {
public static String hello()
{
return "Hello";
}
}
Within iReport, i want to use this API. I compiled the above library into a jar file. Added the location in Tools -> Options -> Classpath.
then tried the following:
Editing the expression in a a text field new utils.Hello().hello()
Creating a new field and setting its type to utils.Hello. Then using the field.hello() in the expression
In both cases, it complains that it cannot resolve hello. However its in the classpath. I've also tried to right click on the report root and add utils.Hello/utils to the Java import directive. Neither of which seemed to pick up the class.
Any advice is greatly appreciated.
Your right expression might be like this:
<textFieldExpression><![CDATA[utils.Hello.hello()]]></textFieldExpression>
The working sample:
<?xml version="1.0" encoding="UTF-8"?>
<jasperReport ..>
<queryString>
<![CDATA[SELECT DISTINCT city FROM address ORDER BY city]]>
</queryString>
<field name="CITY" class="java.lang.String"/>
<detail>
<band height="20" splitType="Stretch">
<textField>
<reportElement x="0" y="0" width="100" height="20"/>
<textElement/>
<textFieldExpression><![CDATA[$F{CITY}]]></textFieldExpression>
</textField>
<textField>
<reportElement x="100" y="0" width="100" height="20"/>
<textElement/>
<textFieldExpression><![CDATA[utils.Hello.hello()]]></textFieldExpression>
</textField>
</band>
</detail>
</jasperReport>
You can also add import instruction to the report. In this case the expression will be:
<textFieldExpression><![CDATA[Hello.hello()]]></textFieldExpression>
The working sample:
<?xml version="1.0" encoding="UTF-8"?>
<jasperReport ... whenNoDataType="AllSectionsNoDetail">
<import value="utils.Hello"/>
<title>
<band height="41">
<textField>
<reportElement x="188" y="11" width="100" height="20"/>
<textElement/>
<textFieldExpression><![CDATA[Hello.hello()]]></textFieldExpression>
</textField>
</band>
</title>
</jasperReport>
Note: For both samples the jar file (with utils.Hello class) must be in classpath.
More info about using srciptlets you can find here.
You field type should be String , not utils.Hello