ClassCastException when exporting

[2005 IR Help]

By: Tom Schindl - tomsontom

ClassCastException when exporting

2004-09-01 08:56

Hi,

 

I'm running into problems when I try to export my jasper-File to any format, I get the following exception:

 

--------------8<--------------

java.lang.ClassCastException: net.sf.jasperreports.engine.JasperReport

at net.sf.jasperreports.engine.JasperExportManager.exportReportToPdfFile(JasperExportManager.java:104)

.....

--------------8<--------------

 

The code is the following:

--------------8<--------------

JasperCompileManager.compileReportToFile("C:\Dokumente und Einstellungen\tom-admin\Eigene Dateien\eclipsehome\biscat\src\reports\employee_basedata.jrxml");

System.out.println("It's compiled");

JasperFillManager.fillReport("C:\Dokumente und Einstellungen\tom-admin\Eigene Dateien\eclipsehome\biscat\src\reports\employee_basedata.jasper",collector.getParameters(),connection);

System.out.println("It's filled");

JasperExportManager.exportReportToPdfFile("C:\Dokumente und Einstellungen\tom-admin\Eigene Dateien\eclipsehome\biscat\src\reports\employee_basedata.jasper");

System.out.println("It's exported");

--------------8<--------------

 

I've also tried the HorizontalReport-example but I get the same exception. What am I doing wrong?

 

Tom

[jackiema]

Hi,

 

I am getting the exactly same error. It worked only on "fill". Not for pdf, xml, html... anything. Have anyone got the answer yet? Please help!

 

Thanks,

 

Jackie

[jackiema]

Still struggling with no clue. Please help me if anyone knows what the problem is.

 

Here is my console:

java.lang.ClassCastException: net.sf.jasperreports.engine.JasperReport

at net.sf.jasperreports.engine.JasperExportManager.exportReportToPdfFile(JasperExportManager.java:77)

at HelloWorldApp.main(HelloWorldApp.java:115)

 

And in the class, I am using JasperExportManager as:

 

JasperExportManager.exportReportToPdfFile(fileName);

 

The report is the as simple as:

 

<?xml version="1.0"?>

<!DOCTYPE jasperReport

PUBLIC "-//JasperReports//DTD Report Design//EN"

"http://jasperreports.sourceforge.net/dtds/jasperreport.dtd">

 

<jasperReport name="Simple_Report">

<detail>

<band height="20">

<staticText>

<reportElement x="180" y="0" width="200" height="20"/>

<text><![CDATA[Hello World!]]></text>

</staticText>

</band>

</detail>

</jasperReport>

 

So I guess it has nothing to do with the file. But I am using both jasper jars and project code from 1.2.4 and it compiled fine.

 

Thanks

 

Jackie

[lucianc]

JasperExportManager.exportReportToPdfFile(String filename) expects the file passed as parameter to contain a serialized JasperPrint object, but you are probably passing a *.jasper file which contains a serialized JasperReport object.

 

HTH,

Lucian