Bean is not worked in the jsff page

Question

Hi
JDeveloper Studio Edition Version 11.1.2.2.0
I Have a bean for run a jasperreport
package Reports;
import javax.faces.event.ActionEvent;
import sp11.model.apm.clubImpl;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.math.BigDecimal;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.util.HashMap;
import java.util.Map;
import javax.faces.context.FacesContext;
import javax.servlet.ServletContext;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import net.sf.jasperreports.engine.JasperExportManager;
import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.JasperReport;
import net.sf.jasperreports.engine.type.WhenNoDataTypeEnum;
import net.sf.jasperreports.engine.util.JRLoader;
import net.sf.jasperreports.view.JasperViewer;
import oracle.adf.model.BindingContext;
import oracle.adf.model.binding.DCIteratorBinding;
import oracle.binding.BindingContainer;
import oracle.jbo.client.Configuration;
public class CardFrontBean {
public CardFrontBean() {
public String runReportAction(){
DCIteratorBinding rleIter = (DCIteratorBinding)getBindings().get("RealentityIterator");
String RleId = rleIter.getCurrentRow().getAttribute("RleId").toString();
BigDecimal ID = new BigDecimal(RleId);
Map parameter = new HashMap();
parameter.put("ID", ID);// where ID is a jasper report parameter
try
runReport("card_front.jasper", parameter);
catch (Exception e)
return null;
public BindingContainer getBindings(){
return BindingContext.getCurrent().getCurrentBindingsEntry();
public ServletContext getContext(){
return (ServletContext)getFacesContext().getExternalContext().getContext();
public HttpServletResponse getResponse(){
return (HttpServletResponse)getFacesContext().getExternalContext().getResponse();
public static FacesContext getFacesContext(){
return FacesContext.getCurrentInstance();
public void runReport(String repPath, java.util.Map param) throws Exception {
Connection conn = null;
try
HttpServletResponse response = getResponse();
ServletOutputStream out = response.getOutputStream();
response.setHeader("Cache-Control", "attachment;filename=\"CardFront.pdf\"");
response.setContentType("application/pdf");
ServletContext context = getContext();
InputStream fs = context.getResourceAsStream("/ReportsFolder/" + repPath);
JasperReport template = (JasperReport) JRLoader.loadObject(fs);
template.setWhenNoDataType(WhenNoDataTypeEnum.ALL_SECTIONS_NO_DETAIL);
PreparedStatement statement = null;
String amDef = "sp11.model.apm.club";
String config = "clubLocal";
clubImpl am = (clubImpl)Configuration.createRootApplicationModule(amDef,config);
statement = am.getDBTransaction().createPreparedStatement("select 1 from dual", 0);
conn = statement.getConnection();
JasperPrint print = JasperFillManager.fillReport(template, param, conn);
//JasperViewer.viewReport(print, false);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
JasperExportManager.exportReportToPdfStream(print, baos);
out.write(baos.toByteArray());
out.flush();
out.close();
FacesContext.getCurrentInstance().responseComplete();
catch (Exception jex)
jex.printStackTrace();
finally
close(conn);
public void close(Connection con){
if (con != null)
try
con.close();
catch (Exception e)
and a commandButton in the .jsff page
<af:commandButton id="Realentitycardfront"
textAndAccessKey="#{nls['REALENTITY_CARDFRONT']}"
shortDesc="#{nls['REALENTITY_CARDFRONT_HINT']}"
action="#{CardFront.runReportAction}"/>
my .jsff page is in a bounded task flow with Use Page Fragments = true
when i click the button. ........>nothing
what is the matter
i read in a post that it is not work in jsff page with page fragmentation
please help me
thanks

Answer 1

One problem is that you write into the output stream from an action method and don't know what's already in the output stream. Once there is one byte written to hte stream (which you can't know from inside the action method) the pdf stream does not behave as you think it would.
Next thing is that you use createRootApplicationModule but never release it. This will get you out of resources error eventually.
A better approach would be to put this code in a servlet and stream the report from there. In the servlet you have control over the output stream.
Check my blog http://tompeez.wordpress.com/2011/12/16/jdev11-1-2-1-0-handling-imagesfiles-in-adf-part-3/ where I show how to serve images from a servlet which can even use the application module pool from the application (no need to use createRootApplicationModule at all). All you have to do is to exchange the part where I get and stream the image data to your needs.
Timo