error in filedownload from KM

[Former Member]

Hi All,

I'm developing an Web dynpro application for upload files to KM repository of portal . i have added KM navigation facility in it in table format.

so that user can see thr uploaded files.

now i want to download and open those files from same table which is showing me file via KM Navigation.I'm using normal file downloading funda for this.

when i click on particular file it gives me 2 option open and save.

whn i click on SAVE

*it shows an arror message *

"Internet explorer cannot download 02aXXXXXXsap-wd-norefresh=X from <portal hostname>

Internet exploere cannot open this internet site.requested site is unavailble or cannot be found.pls try again later."

when i click on OPEN it shows

java.lang.NullPointerException

at com.sap.tc.webdynpro.progmodel.mime.OnDemandInputStream.read(OnDemandInputStream.java:66)

at java.io.InputStream.read(InputStream.java:89)

at com.sap.tc.webdynpro.basesrvc.util.IOUtil.write(IOUtil.java:103)

at com.sap.tc.webdynpro.services.sal.util.cache.ResourcePool$AbstractResourceElement.copy(ResourcePool.java:264)

at com.sap.tc.webdynpro.services.sal.util.cache.ResourcePool$CopyByFirstReadResourcePoolElement.save(ResourcePool.java:542)

at com.sap.tc.webdynpro.services.sal.util.cache.ResourcePool$CopyByFirstReadResourcePoolElement.getLength(ResourcePool.java:604)

at com.sap.tc.webdynpro.services.sal.util.cache.AbstractCachedSource.getContentLength(AbstractCachedSource.java:230)

at com.sap.tc.webdynpro.clientserver.cal.WebDynproExchangeHandler.responseCachedWebResource(WebDynproExchangeHandler.java:83)

at com.sap.tc.webdynpro.clientserver.cal.WebDynproExchangeHandler.doExchange(WebDynproExchangeHandler.java:179)

at com.sap.tc.webdynpro.clientserver.session.ClientSession.doExchangeProcessing(ClientSession.java:1126)

at com.sap.tc.webdynpro.clientserver.session.ClientSession.doApplicationProcessingStandalone(ClientSession.java:717)

at com.sap.tc.webdynpro.clientserver.session.ClientSession.doApplicationProcessing(ClientSession.java:666)

at com.sap.tc.webdynpro.clientserver.session.ClientSession.doProcessing(ClientSession.java:250)

at com.sap.tc.webdynpro.clientserver.session.RequestManager.doProcessing(RequestManager.java:149)

at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doContent(DispatcherServlet.java:62)

at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doGet(DispatcherServlet.java:46)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)

at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:401)

at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:266)

at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:387)

at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:365)

at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:944)

at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:266)

at com.sap.engine.services.httpserver.server.Client.handle(Client.java:95)

at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:175)

at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33)

at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41)

at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)

at java.security.AccessController.doPrivileged(Native Method)

at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:100)

at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:170)

when i go n check on line #66 its automaticlly genreted code

 static 
  {
    //@@begin id
		String id = "$Id$";
    //@@end
    com.sap.tc.logging.Location.getLocation("ID.com.sap.tc.webdynpro").infoT(id);
  }

helpful posts'll b appriciated

Regards,

Khushboo

[former_member194668]

Kushboo,

Check if the file that you are downloading has some special cahracters (comma, space, ...).

Decode the URL before assigning it to the table link.

-Aarthi

[DeeptiChavare]

Hi Khushboo,

If you paste the code you are using to read a file from KM, it will be more helpful in isolating the error.

Also you can go through following blogs which talk about downloading files from KM using WDJ.

[|]

[|]

Regards,

Deepti

[Former Member]

Hi both of u.

thnaks for ur reply.

@ deepti : I have tried wid d links that u have given to me.

i have created a new WD application thn created KM navigation in that n used open file option of the blog on link toAction UI element.but nothng hppns.

for second link i have already followd that one but its nt wrking in my case i dnno y.

here after i have followed :[https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/b0e10426-77ca-2910-7eb5-d7d8982cb83f]

atleast it has given me SAVE n OPEN option wid KM files.

@Aarthi:

Check if the file that you are downloading has some special cahracters (comma, space, ...).

No if i do with normal file which doesnt have any special character in its name Still problem remans same

Can u temme how toDecode the URL before assigning it to the table link.

Regards

Khushboo