The only way I found and successfully use is the PayPal Button (saved on the server + 'custom' attribute) + IPN mechanism (over SSL) to receive transaction statuses. Other ways could not be probably implemented now due to the current GAE restrictions - mainly: you cannot add a new JCE provider now.
Vaclav On May 3, 7:47 am, shamel <shame...@gmail.com> wrote: > How to integrate paypal with app engine?? > i have got many errors when integrating this. main exceptions are > org.xml.sax.SAXNotSupportedException:http://xml.org/sax/features/external-general-entities > at > org.apache.xerces.framework.XMLParser.setExternalGeneralEntities(XMLParser.java: > 486) > at org.apache.xerces.framework.XMLParser.setFeature(XMLParser.java: > 1298) > at org.apache.xerces.parsers.SAXParser.setFeature(SAXParser.java:578) > at > org.apache.xerces.jaxp.SAXParserImpl.setFeatures(SAXParserImpl.java: > 150) > ................... > > please help me as fast as possible??? > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine for Java" group. > To post to this group, send email to google-appengine-j...@googlegroups.com. > To unsubscribe from this group, send email to > google-appengine-java+unsubscr...@googlegroups.com. > For more options, visit this group > athttp://groups.google.com/group/google-appengine-java?hl=en. -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
