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Making Jasper Reports works.

 
Greenhorn
Posts: 2
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I am new to Jasper reports. I copy a sample code on how to use jasper reports using Netbeans 5.5. Following the procedure and compile the application, and like magic, series of errors appear. Can you help me guys in solving this.

Here is the code (very simple and yet have errors):

HelloReportWorld.jrxml
----Start after this line----

<?xml version="1.0"?>
<!DOCTYPE jasperReport
PUBLIC "-//JasperReports//DTD Report Design//EN"
"http://jasperreports.sourceforge.net/dtds/jasperreport.dtd">

<jasperReport name="HelloReportWorld">
<detail>
<band height="20">
<staticText>
<reportElement x="180" y="0" width="200" height="20"/>
<text><![CDATA[Hello World!]]></text>
</staticText>
</band>
</detail>
</jasperReport>

------- end here ---------

Main.java

----Start after this line----

package reportapps;

import java.util.HashMap;
import net.sf.jasperreports.engine.JREmptyDataSource;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JasperCompileManager;
import net.sf.jasperreports.engine.JasperExportManager;
import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.JasperReport;

/**
*
* @author shalimar
*/
public class Main {

/** Creates a new instance of Main */
public Main() {
}

/**
* @param args the command line arguments
*/
public static void main(String[] args) {
JasperReport jasperReport;
JasperPrint jasperPrint;
try {
jasperReport = JasperCompileManager.compileReport( "report/templates/HelloReportWorld.jrxml");
jasperPrint = JasperFillManager.fillReport(jasperReport, new HashMap(), new JREmptyDataSource());
JasperExportManager.exportReportToHtmlFile( jasperPrint, "report/results/simple_report.pdf");
} catch (JRException e) {
e.printStackTrace();
}
}

}

------END HERE------------

COMPILER ERROR:


----Start after this line----


net.sf.jasperreports.engine.JRException: Error compiling report java source files : /home/shalimar/ReportApps/HelloReportWorld_1171871987558_150188.java
at net.sf.jasperreports.engine.design.JRJavacCompiler.compileClasses(JRJavacCompiler.java:93)
at net.sf.jasperreports.engine.design.JRAbstractClassCompiler.compileUnits(JRAbstractClassCompiler.java:67)
at net.sf.jasperreports.engine.design.JRAbstractCompiler.compileReport(JRAbstractCompiler.java:190)
at net.sf.jasperreports.engine.design.JRDefaultCompiler.compileReport(JRDefaultCompiler.java:105)
at net.sf.jasperreports.engine.JasperCompileManager.compileReport(JasperCompileManager.java:211)
at net.sf.jasperreports.engine.JasperCompileManager.compileReport(JasperCompileManager.java:144)
at reportapps.Main.main(Main.java:38)
Caused by: java.io.IOException: java.io.IOException: javac: not found
at java.lang.UNIXProcess.<init>(UNIXProcess.java:148)
at java.lang.ProcessImpl.start(ProcessImpl.java:65)
at java.lang.ProcessBuilder.start(ProcessBuilder.java:451)
at java.lang.Runtime.exec(Runtime.java:591)
at java.lang.Runtime.exec(Runtime.java:464)
at net.sf.jasperreports.engine.design.JRJavacCompiler.compileClasses(JRJavacCompiler.java:62)
... 6 more

------END HERE----------


Can you help me in this?

Thanks

Shalimar
 
Java Cowboy
Posts: 16084
88
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I had a quick look at the error messages and this line looks important:

Caused by: java.io.IOException: java.io.IOException: javac: not found

It looks like the software you're trying to use cannot find the Java compiler. You probably have to configure it to tell it where to find the Java compiler.

It might be a good idea to ask your questions in the forums on the JasperReports website - there will undoubtedly be more people with experience with JasperReports there.
 
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