[jboss-user] [JBoss Portal] - How to stream a pdf at portlet?

[littleprince]

i want to stream a pdf report to a page, but some how i got funny character when streaming. below is the code i wrote. i got this works at normal java application, but not in portlet.

FacesContext ctx=FacesContext.getCurrentInstance();
String fullPath = getReportPath(reportName);
HttpServletResponse response=(HttpServletResponse)ctx.getExternalContext().getResponse();
response.setContentType("application/pdf");
response.addHeader("Content-Disposition", "attachment; filename="+reportName+".pdf");
JasperPrint jasperPrint=JasperFillManager.fillReport(fullPath, parameters, new JRBeanCollectionDataSource(list));
JasperExportManager.exportReportToPdfStream(jasperPrint, response.getOutputStream());
	    	
ctx.getApplication().getStateManager().saveSerializedView(ctx); 
ctx.responseComplete();

the result i got is 
%PDF-1.4 %âãÏÓ 4 0 obj <>stream xœ¥˜ÉnÛ0†ïz 
ÓCenZœ[‚.hö¸§¢Ò]q
Øúú¥š
†ÑŒ$$±Âd>Íð*óǒ}MîW‰`Ü|4¯¥–luHŸæ»mrónõ'ùè‡p¶9ø2”iރ’ ހ¼ýõi—ÜܽTû {¬×§ÍoöP?O—榜í"7þùË\«ð§<-™ýzø –&ƒ`ÿ,§+Ê%“Š½;ÕÉ=(U±¢ÈJý~Lß.§™KÔ1¦ÃÂ
Ó"k’¦2c‡$Ó͵_>%4ª_¢¹ TvÍÂÂ
Q ¤5Sò¬½7ËtTò¬@$ÿ°¾Ôc57[ðÕ|I=Àú%A>_t› Ã`Q1n¦îÂ(Ù _DÂÂ
æù
V~µ?ŒV¾Ù>/HÒ¿âú5EE ~Ÿå@]1n®úy9¨~ÁõœëûRn€Ùˆ/¤”­

g×!ýØ|ëŠq3 eÞ6`™G e‰4ànsÙÿŽÕ¿ÙøË-%Iÿ³kŠŽ¾þ6:*@]1nî¤53¶Ñ_ˆ7fm›m¨
ߎÕËÓè¿@ÍF|!µÊi7àìš"¤ß

However, if i use 
JasperExportManager.exportReportToPdfFile(jasperPrint,"c:\\test.pdf");
i got the pdf nicely, but it save into my local, which does not serve my need.

So what is the correct way to stream a pdf? i want to do it like a popup message to let me download the pdf.

Thanks in advance. 
			

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