Call report using JSF and Jasper Reports

[Alberto Dousdebes]

Hi!. i'm testing with my first report made using Jasper Reports. I've preview it and looks fine. But, i don't know how to call it from my JSF page.

I've performed a search but couldn't find some significative information. Anyone know how to do it?. Is there a manual or something i can read?.

I'm using:
* NetBeans 6.1
* I-Report plug-in for NetBeans (iReport-nb-0.9.2).

Thanks a lot in advance.

[Vinod K Singh]

Simple pseudo code-

1. Click on a link or button.
2. Generate the report on server side.
3. Return the generated report to client.

Hope this helps.

[André Campanini]

Hi.

I'm with the same doubt.

How implement the calling between step 1 and 2. By calling a servlet?

[Vinod K Singh]

When you click on a button or link then a method of some managed bean will be called, this is where you need to generate the report and point the user towards generated report file.

[Alberto Dousdebes]

Hi all!. Thanks for the anwsers!!! i've found a method in a french site. This method call a Report in PDF format.

Actually it's not working for me . I've created the .jasper file in a package on my project. This is the structure:

nsm.moreno.entidades:
--------------------classes
--------------------more classes
--------------------myReport.jasper

Back to the method. i don't understand where to get the "reportId", and,how to use the File object. Anyone has any idea?.. Thanks a lot!

public String viewReportPDF() throws SQLException, JRException, IOException, NamingException {
                //Fill Map with params values
                HashMap hm = new HashMap(); 
                hm.put("parametroNombre", this.nombrePreventista);
                hm.put("fechaInicio", this.fechaInicio);
                hm.put("fechaFin", this.fechaFin);
    
                
              //Connect with local datasource
             Context ctx = new InitialContext();
             DataSource ds = (DataSource) ctx.lookup("jdbc/Moreno");
             Connection conexion = null;
             conexion = ds.getConnection();
             conexion.setAutoCommit(true);
            
String reportId = "ListaPedidosResumida";

File file = new File("C:/ArchivosBegon/");
JasperPrint jasperPrint = JasperFillManager.fillReport(
new FileInputStream(new File(file, reportId + ".jasper")),
hm, conexion);
                
byte[] bytes = JasperExportManager.exportReportToPdf(jasperPrint);
FacesContext context = FacesContext.getCurrentInstance();
HttpServletResponse response = (HttpServletResponse) context
.getExternalContext().getResponse();
/***********************************************************************
 * Pour afficher une bo�te de dialogue pour enregistrer le fichier sous
 * le nom rapport.pdf
 **********************************************************************/
response.addHeader("Content-disposition",
"attachment;filename=reporte.pdf");
response.setContentLength(bytes.length);
response.getOutputStream().write(bytes);
response.setContentType("application/pdf");
context.responseComplete();
return null;
}    

[Alberto Dousdebes]

I've put the jar file in the path C:/ArchivosBegon/


File file = new File("C:/ArchivosBegon/");

And works fine!! thanks!