I'm using Java and Jasper to generate reports in .xlsx format.
And I was successful and I have components in my application which create actual reports with data.
recently I was trying to add another component and the report generation was successful , but the generated .xslx file wont open with MS Excel or any other.
the code parts are below.
ArrayList<ReportBean> reportBean = new ArrayList<ReportBean>();
response.setHeader("Content-Disposition", "attachment;filename=BudgetaryQuote.xlsx");
response.setContentType("application/xlsx");
OutputStream outStream = response.getOutputStream();
Report report = new Report(template, "xlsx", reportBean, outStream);
//Report(String template, String format, ArrayList dataList,OutputStream outputStream)
report.generateReport();
in generateReport() it has ,
InputStream inputStream = new FileInputStream(new File(this.template));
JRBeanCollectionDataSource beanColDataSource = new JRBeanCollectionDataSource(this.dataList);
JasperDesign jasperDesign = JRXmlLoader.load(inputStream);
JasperReport jasperReport = JasperCompileManager.compileReport(jasperDesign);
JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, parameters, beanColDataSource);
if(this.format.equalsIgnoreCase(XLSX)) {
JRXlsxExporter Xlsxexporter = new JRXlsxExporter();
Xlsxexporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
Xlsxexporter.setParameter(JRExporterParameter.OUTPUT_STREAM, outputStream);
Xlsxexporter.exportReport();
}
the .jrxml file (It's pretty much blank)
<?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="timeSheetDetailedReport" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="4ffef809-ea2d-4533-a0b9-bdd2d055afbe">
<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"/>
</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>
There is an error like in the image.
"Excel found unreadable content in filename.xls. Do you want to recover the contents of this workbook? If you trust the source of this workbook, click Yes."
How can I check what is the wrong with the file ?
I just solved the problem. But it's not clear.
my code had the below code ,
ArrayList<ReportBean> reportBean = new ArrayList<ReportBean>();
Report report = new Report(template, "xlsx", reportBean, outStream);
report.generateReport();
The problem was the ArrayList reportBean was empty. The I add an dummy ReportBean to the list and the problem was solved.
But I have no idea how it solved the problem and why
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
I have a problem with JasperReports API.
I add html component into my report (via iReport designer 5.0.4). Compilation to jasper file runs without errors.
When I try create the report I get null from JasperPrint object (method createReport(getReportAsByteArray(), parameters, dataSource); returns null instead of JasperPrint object.
getReportAsByteArray() - returns jasper report file from my database).
The Html component (in iReport) is connected with string parameter, I put right string parameter into parameters HashMap<>. I already have tried write html text in html content exp. (html component properties).
It didn't work.
Earlier everything was fine, when the jasper file was without html component I could create my report and export to PDF.
Now I can see the resulting report (with html component) in my iReport preview (and it works), but when I fill my report via my java bean - it doesn't work.
(the jasper file with only one object - html component - didn't work too).
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="raport_test_1" language="groovy" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="5a918503-735f-4812-bbd1-f4017cca4b0f">
<property name="ireport.zoom" value="1.0"/>
<property name="ireport.x" value="0"/>
<property name="ireport.y" value="0"/>
<parameter name="TEXT_CONTENT" class="java.lang.String"/>
<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"/>
</columnHeader>
<detail>
<band height="125" splitType="Stretch">
<componentElement>
<reportElement uuid="e9907391-3e2f-45c9-af15-b7a60f7a3312" x="0" y="0" width="555" height="125"/>
<hc:html xmlns:hc="http://jasperreports.sourceforge.net/htmlcomponent" xsi:schemaLocation="http://jasperreports.sourceforge.net/htmlcomponent http://jasperreports.sourceforge.net/xsd/htmlcomponent.xsd" scaleType="RealSize" horizontalAlign="Left" verticalAlign="Middle">
<hc:htmlContentExpression><![CDATA[$P{TEXT_CONTENT}]]></hc:htmlContentExpression>
</hc:html>
</componentElement>
</band>
</detail>
<columnFooter>
<band height="45" splitType="Stretch"/>
</columnFooter>
<pageFooter>
<band height="54" splitType="Stretch"/>
</pageFooter>
<summary>
<band height="42" splitType="Stretch"/>
</summary>
</jasperReport>
And the method, which should return byte array of report pdf file
Map<String, Object> parameters = new HashMap<>();
parameters.put("TEXT_CONTENT","sample text<br/>");
List<Data> list= getList();
if (list == null) {
list = new ArrayList<>();
}
JRBeanCollectionDataSource dataSource = new JRBeanCollectionDataSource(list);
JasperPrint printableReport = createReport(getReportFileAsByteArray(), parameters, dataSource);
if (printableReport != null) {
try {
return JasperExportManager.exportReportToPdf(printableReport);
} catch (JRException ex) {
//
}
}
return null;
Thanks for any advices!
A simple report with only a png in it.
Png's dpi is 96, which looks pretty sharp. However, every time i export the report, be it to .docx or to pdf, only an awfully blurry image appears.
i've tried setting
net.sf.jasperreports.image.dpi
to 300, and to 96
both in ireports and directly on the report's jrxml as a property.
Nothing works.
exception
I've lost many days googling this matter but still no answers.
Update 1
I've been able to trace the cause of this strange behavior to itext. It seems that it has to do something with it.
Update 2
Here's the jrxml code
<?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="carta_policia" pageWidth="612" pageHeight="792" columnWidth="572" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="fbda9a68-7549-438c-a8ad-b3aedaf0b2d4">
<property name="ireport.zoom" value="1.0"/>
<property name="ireport.x" value="0"/>
<property name="ireport.y" value="0"/>
<property name="ireport.background.image" value="C:\Users\thou\workspace\cujillo\WebContent\resources\reports\fondo.png"/>
<property name="ireport.background.image.properties" value="false,true,0.25,0,0,0,0,0,0"/>
<property name="net.sf.jasperreports.image.dpi" value="96"/>
<parameter name="SUBREPORT_DIR" class="java.lang.String" isForPrompting="false">
<defaultValueExpression><![CDATA["C:/Users/thou/workspace/cujillo/WebContent/resources/reports/"]]></defaultValueExpression>
</parameter>
<parameter name="R_RADICADO" class="java.lang.String"/>
<parameter name="SUBREPORT_DATA_SOURCE" class="net.sf.jasperreports.engine.JRDataSource"/>
<parameter name="R_ASUNTO" class="java.lang.String"/>
<parameter name="R_LOCALIDAD" class="java.lang.String"/>
<parameter name="R_IMAGE_RENDERER" class="net.sf.jasperreports.engine.JRRenderable" isForPrompting="false"/>
<parameter name="R_PRINT_BACKGROUND" class="java.lang.String"/>
<background>
<band height="752"/>
</background>
<title>
<band height="371" splitType="Stretch">
<image scaleImage="RealSize">
<reportElement uuid="dbadb500-4011-415b-bd98-4236532783c4" x="234" y="147" width="75" height="63"/>
<imageExpression><![CDATA["C:\\Users\\thou\\workspace\\cujillo\\WebContent\\resources\\reports\\alcaldia mayor.png"]]></imageExpression>
</image>
<image scaleImage="Clip">
<reportElement uuid="ecf7dbe3-4369-41a8-ba49-db98ba5ef478" x="309" y="151" width="75" height="63"/>
<imageExpression><![CDATA["C:\\Users\\thou\\workspace\\cujillo\\WebContent\\resources\\reports\\alcaldia mayor.jpg"]]></imageExpression>
</image>
</band>
</title>
<pageHeader>
<band splitType="Stretch"/>
</pageHeader>
<columnHeader>
<band splitType="Stretch"/>
</columnHeader>
<detail>
<band height="104" splitType="Stretch"/>
</detail>
<columnFooter>
<band splitType="Stretch"/>
</columnFooter>
<pageFooter>
<band height="11" splitType="Stretch"/>
</pageFooter>
<summary>
<band height="209" splitType="Stretch"/>
</summary>
</jasperReport>
Although we've raised the DPI setting in our presentations, I've implemented a custom exporter, which exports charts as powerpoint shapes and not as raster images.
At least for .docx it's feasible to implement something similar.
Before I've started the shape export classes, I've tried to use EMF (1,2) as an image format, but this is quite limited, e.g. it doesn't embed fonts.
I haven't searched further in the direction, but maybe you can transform an intermediate SVG image to something (raster/vector) which can be embedded into .docx/.pdf.
Have you checked the images inside .docx-Zip-file? ... are the plain images also blurry or just when they are displayed by Word/LibreOffice. And of course the images should change after you changed the DPI setting - if not, try to put a jasperreports.properties in the classpath
I have written this code to show a simple report using iReport 4.7.1.
private void printReport() {
try {
JRTableModelDataSource dataSource = new JRTableModelDataSource(
new JTable().getModel());
String reportSource = "C:\\Reports\\report1.jrxml";
Map<String, Object> params = new HashMap<String, Object>();
params.put("Name", "SriLanka");
JasperReport jasperReport = JasperCompileManager.compileReport(reportSource);
JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, params, dataSource);
JasperViewer.viewReport(jasperPrint, false);
} catch (Exception e) {
e.printStackTrace();
}
}
Here are my libraries:
commons-beanutils-1.8.0.jar
commons-collections-2.1.1.jar
commons-digester-2.1.jar
commons-logging-1.1.1.jar
jasperrreports-4.7.1.jar
jasperreports-applet-4.7.1.jar
jasperreports-javaflow-4.7.1.jar
groovy-all-1.7.5.jar
and NetBeans output shows this warning
Oct 08, 2012 2:57:31 PM net.sf.jasperreports.engine.component.ComponentsEnvironment findBundles
WARNING: Found two components for namespace http://jasperreports.sourceforge.net/jasperreports/components
and here is the .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="report1" language="groovy" pageWidth="595" pageHeight="842" whenNoDataType="BlankPage" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="5174594e-de3c-4b09-932b-c6665bf6a34b">
<parameter name="Name" class="java.lang.String" isForPrompting="false"/>
<background>
<band splitType="Stretch"/>
</background>
<title>
<band height="79" splitType="Stretch">
<textField>
<reportElement uuid="fd02a8bc-548b-41c1-aed5-2a7c2e257704" x="210" y="23" width="157" height="36"/>
<textElement>
<font size="18"/>
</textElement>
<textFieldExpression><![CDATA[$P{Name}]]></textFieldExpression>
</textField>
</band>
</title>
<pageHeader>
<band height="35" splitType="Stretch"/>
</pageHeader>
<columnHeader>
<band height="61" splitType="Stretch"/>
</columnHeader>
<detail>
<band height="125" splitType="Stretch"/>
</detail>
<columnFooter>
<band height="45" splitType="Stretch"/>
</columnFooter>
<pageFooter>
<band height="54" splitType="Stretch"/>
</pageFooter>
<summary>
<band height="42" splitType="Stretch"/>
</summary>
</jasperReport>
The report opens but doesn't show any text.
To solve this problem you should:
check your datasource, it can be empty;
add textFields elements with fields expressions (<textFieldExpression><![CDATA[$F{field}]]></textFieldExpression>) to the Detail band to show records in report.
Anyway your parameter Name should be displayed in the Title band (in generated report). You can pass even the JREmptyDataSource to check this.
For showing data you can chose one of this ways:
1. Using Detail band
It is classical, "old school" method for showing data stored in records from the data source. The JR engine iterates through the data source for rendering this section. With help of textField elements we can show the fields values.
The sample: look at $jasperreports$\demo\samples\jasper sample from JR distribution package.
2. Using Crosstab component
The Crosstab component used for summarizing data into grid which has two dimensions.
The sample: look at $jasperreports$\demo\samples\crosstabs sample.
3. Using List component
The List component iterates on set of its records (defined with help of subDataset property).
The sample: look at Using the Built-in List Component sample.
4. Using Table component
The Table is using for showing data with tabular structure. As a List component has its own subDataset.
The sample: look at Using the Built-in Table Component sample.
4. Using Subreport component
The Subreport is using for building complex reports such as compilation of different reports in one. This component often operates with subqueries.
The sample: look at Subreports sample.
You can read details in JasperReports Ultimate Guide
i have a EJB site with glassfish 3.1 + JSF for jasperreport 4.0.1. the site has no problem on streaming pdf, but it products blank PDF while printing PDF with runReportToPdfStream, below is the code snippet:
EJB
public class BookEJB {
public void printReport() throws ClassNotFoundException, IOException, JRException {
Map parameterMap = new HashMap();
FacesContext ctx = FacesContext.getCurrentInstance();
HttpServletResponse response = (HttpServletResponse) ctx.getExternalContext().getResponse();
InputStream reportStream = ctx.getExternalContext().getResourceAsStream("/reports/test.jasper");
ServletOutputStream servletOutputStream = response.getOutputStream();
servletOutputStream.flush();
response.setContentType("application/pdf");
JasperRunManager.runReportToPdfStream(reportStream, servletOutputStream, parameterMap);
servletOutputStream.flush();
servletOutputStream.close();
ctx.responseComplete();
}}
test.jrxml - a simple report without SQL connection
<?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="test" pageWidth="800" pageHeight="1200" columnWidth="555" leftMargin="25" rightMargin="25" topMargin="30" bottomMargin="30">
<property name="ireport.zoom" value="1.0"/>
<property name="ireport.x" value="0"/>
<property name="ireport.y" value="0"/>
<queryString>
<![CDATA[]]>
</queryString>
<pageHeader>
<band height="100">
<staticText>
<reportElement x="0" y="0" width="285" height="36"/>
<textElement>
<font size="24" isBold="true"/>
</textElement>
<text><![CDATA[Report of Testing]]></text>
</staticText>
</band>
</pageHeader>
<detail>
<band height="200">
<staticText>
<reportElement x="0" y="0" width="374" height="48"/>
<textElement>
<font size="18"/>
</textElement>
<text><![CDATA[If you don't see this, it didn't work blah blah blah.... ]]></text>
</staticText>
</band>
</detail>
<pageFooter>
<band height="100"/>
</pageFooter>
</jasperReport>
no error log in glassfish when generating this report on JSF, but only blank PDF has been shown. Please help, let me know if you need further info for the analysis.
Steven
After all, JasperRunManager.runReportToPdfStream(reportStream, servletOutputStream, parameterMap, new JREmptyDataSource()); solved the problem.
Quote from Sanda of Jasperreport:
By default, when no datasource info is present in a report, JR generates no pages. Another option (which can be set in the report's whenNoDataType attribute) would be to print all report sections, excepting the <detail>.
This report contains a detail section, but only with some static data. To ensure this section will be printed too, the simplest way is to provide an empty data source, containing a single empty record.
Source: https://community.jaspersoft.com/questions/537650/blank-pdf-even-simplest-jrxml
When you are not using the details band, just static values, you can do the following:
Right click in the iReport project, then select 'Properties', search for the property 'When no Data', and select 'All Sections, No Detail'
It works for me, using iReport 4.0
In addition to what Mythox said, I'll show the best way to fake a data source in jasper and if you need also on JasperServer.
1) Define an Empty Data Adapter (a simple .xml file), and deploy it in Server or put it in reports folder:
<?xml version="1.0" encoding="UTF-8" ?><emptyDataAdapter class="net.sf.jasperreports.data.empty.EmptyDataAdapterImpl"><name>Nuovo Data Adapter 1</name><recordCount>1</recordCount></emptyDataAdapter>
2) Link it into the main report:
<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="repor" language="javascript" pageWidth="612" pageHeight="792" whenNoDataType="NoDataSection" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" isFloatColumnFooter="true" uuid="c0eee90e-1b1a-4f34-ad99-1112847752de">
<property name="net.sf.jasperreports.data.adapter" value="EmptyDataAdapter.xml"/>
prefix "repo:" to the value of the property for the data adapter, if the xml is deployed on jasper server.
The attribute "whenNoDataType" will be ignored.
Other details here.