Need help getting started with scriptlets.

[ktlam1955]

Hello, I'm new to using scriptlets in iReport and I am having trouble getting started.  I am trying to write my first one. 

I selected "Use iReport internal scriptlet support" in Report Properties.

I used the Scriptlet editor in iReport to write a simple method just to start.

When I ran the report I got the following error.

Error compiling the Scriptlet Java source. net.sf.jasperreports.engine.JRException: Error compiling report java source files : C:\Program Files\GEBIT\TREND Analyst Community Edition\GEBIT_workspace\HDP reports\TSC Speed Station Data by CDS Route Number\JasperReports\Untitled_report_1Scriptlet.java 
    at net.sf.jasperreports.engine.design.JRJdk13Compiler.compileClasses(JRJdk13Compiler.java:119)
    at net.sf.jasperreports.engine.design.JRAbstractMultiClassCompiler.compileClass(JRAbstractMultiClassCompiler.java:45)
    at it.businesslogic.ireport.IReportCompiler.run(IReportCompiler.java:362)
    at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.ClassNotFoundException: com.sun.tools.javac.Main
    at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
    at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:247)
    at net.sf.jasperreports.engine.util.JRClassLoader.loadClassForRealName(JRClassLoader.java:179)
    at net.sf.jasperreports.engine.design.JRJdk13Compiler.compileClasses(JRJdk13Compiler.java:81)
    ... 3 more
Compilation running time: 94.

 

Can someone please tell me what I could be doing wrong?  Thanks in advance.

Code:

Post Edited by ktlam1955 at 05/29/2009 01:03

Post Edited by ktlam1955 at 05/29/2009 01:04

[svenn]

First make sure that the tools.jar file from your JDK is in the lib folder of your jasper install.

When we create our own methods to call from a report we prefer to do the following instead of using jaspers internal scriptlet creator.

1. Either implement JRAbstractScriptlet or extend JRDefaultScriptlet.

http://jasperreports.sourceforge.net/api/index.html

2. To call it use

$P{REPORT_SCRIPTLET}.yourMethod(yourValue)

3. To point to your scriplet go to

Report Properties -> Scriplet Class -> Use This scriplet class

Put the package and class in the box

[ktlam1955]

Thank you for your help but I now have a different error.
It seems like I'm missing a library in my classpath but I don't know jar file I should get to get this library.

Errors compiling C:\Program Files\GEBIT\TREND Analyst Community Edition\GEBIT_workspace\HDP reports\TSC Speed Station Data by CDS Route Number\JasperReports\Untitled_report_1Scriptlet.java. C:\Program Files\GEBIT\TREND Analyst Community Edition\GEBIT_workspace\HDP reports\TSC Speed Station Data by CDS Route Number\JasperReports\Untitled_report_1Scriptlet.java:4: cannot access it.businesslogic.ireport.IReportScriptlet 
bad class file: C:\iReport\iReport-3.0.0\.\lib\iReport.jar(it/businesslogic/ireport/IReportScriptlet.class) 
class file has wrong version 49.0, should be 48.0 
Please remove or make sure it appears in the correct subdirectory of the classpath. 
public class Untitled_report_1Scriptlet extends it.businesslogic.ireport.IReportScriptlet {