flash / struts : how to display a dynamic flash document

hi,

 

i want display flash document dependant on context. choice of document performed struts action must return content of flash.

 

i use following environment: ie 8, jsp, struts, tomcat, oracle

 

here jsp code:

 

<object
id = "banner"
classid="clsid:d27cdb6e-ae6d-11cf-96b8-44553540000"                                          codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,40,0"   width="<bean:write name="topbanner" property="width"/>"          height="<bean:write name="topbanner" property="height"/>">                                              <param name="movie" value="banner.do?frame=top"/>
<param name="quality" value="high"/>
</object>

here generated html code:
<object id = "banner"  classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000"                                                codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,40,0"
width="400"
height="60">
<param name="movie" value="banner.do?frame=top"/>
<param name="quality" value="high"/>
</object>

you find below extract of java code of associated struts action (banneraction.java)

            public actionforward executeaction(actionmapping mapping, actionform actionform,
                                   httpservletrequest req,
                                   httpservletresponse res) throws systemexception,       applicativeexception {
                        ….
                        servletoutputstream out = res.getoutputstream (  );
//  name of flash file found after database request
                        string fullname = …..
                        res.setheader  ( "content-disposition", "attachment; filename=\"" + name + "\"" ) ;
                        fileinputstream fis = null;

//                      return file
                        try  {
                                   fis = new fileinputstream ( fullname ) ;
                                   byte [  ]  buf = new byte [ 32768 ] ;
                                   int bytesread;
                                   while  (  ( bytesread = fis.read ( buf )  )  != -1 )
                                               out.write ( buf, 0, bytesread ) ;
                        }
                        catch  ( filenotfoundexception e )   {
                                    ….
                        }
                        return null;
            }

the result blank zone instead of flash.

does have idea ?

thank in advance,
regards

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