Jasper plugin. Passing additional parameter

[Serg Mazurok <sm...@yukon.cv.ua>]

Could someone provide the example how to pass parameters from Struts2 
action to Jasper report?

I have created simple Jasper report based on Struts tutorial. Then I had 
modified this example in order to use parameter within Jasper report.
Jasper report JRXML file:
/    <parameter name="test" isForPrompting="true" class="java.lang.String"/>
/Action:
/        public String getTest(){
            return "test";
        }/

But this solution doesn't work. On the report I got 'null' instead of 
parameter value.
Could someone give me the point what's wrong with this example?

Any help is appreciated.

Best Regards

-- 
Serg 

Re: Jasper plugin. Passing additional parameter

[Tom Schneider <sc...@gmail.com>]

Serg,
I'm not an expert at jasper reports, but I think parameters are pulled from
the datasource.  In that case, the jasper report result wraps the
datasources in a ValueStackDataSource. (a class located in the jasper
reports plugin)  I would set a few breakpoints in there to see why the
jasper plugin isn't finding the parameter.
Tom


Serg Mazurok wrote:
> 
> 
> Could someone provide the example how to pass parameters from Struts2 
> action to Jasper report?
> 
> I have created simple Jasper report based on Struts tutorial. Then I had 
> modified this example in order to use parameter within Jasper report.
> Jasper report JRXML file:
> /    <parameter name="test" isForPrompting="true"
> class="java.lang.String"/>
> /Action:
> /        public String getTest(){
>             return "test";
>         }/
> 
> But this solution doesn't work. On the report I got 'null' instead of 
> parameter value.
> Could someone give me the point what's wrong with this example?
> 
> Any help is appreciated.
> 
> Best Regards
> 
> -- 
> Serg 
> 
> 
> 

-- 
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Re: Jasper plugin. Passing additional parameter

[Manjesh Reddy <ma...@gmail.com>]

have you tried using
<parameter name="test" isForPrompting="false" class="java.lang.String"/>

and passing the parameters to JasperReport manually using a HashMap
something like this...

                HashMap parameters = new HashMap();
                parameters.put("test", test);
                JasperReport jasperReport =
JasperCompileManager.compileReport(jasperDesign);

                ........

                Context initCtx = new InitialContext();
                DataSource ds = (DataSource)initCtx.lookup("DBLookupJNDI");
                Connection con = ds.getConnection();

                .......

                JasperPrint jasperPrint =
JasperFillManager.fillReport(jasperReport,
parameters, con);

                ......


-Manjesh


On 11/5/07, Serg Mazurok <sm...@yukon.cv.ua> wrote:
>
>
> Could someone provide the example how to pass parameters from Struts2
> action to Jasper report?
>
> I have created simple Jasper report based on Struts tutorial. Then I had
> modified this example in order to use parameter within Jasper report.
> Jasper report JRXML file:
> /    <parameter name="test" isForPrompting="true" class="java.lang.String
> "/>
> /Action:
> /        public String getTest(){
>             return "test";
>         }/
>
> But this solution doesn't work. On the report I got 'null' instead of
> parameter value.
> Could someone give me the point what's wrong with this example?
>
> Any help is appreciated.
>
> Best Regards
>
> --
> Serg
>
>