Hi Lu, Since your App Engine app is not associated permanently with any particular machine, writing to the local disk wouldn't really be a useful option. For this reason writes to the local filesystem are not supported for App Engine apps. Instead, you'll want to write to the datastore which is a distributed system atop Bigtable. As Jeremy noted, this does seem like a question better suited for the App Engine discussion group but I couldn't resist ;-)
Thank you, Jeff On Mon, Jun 21, 2010 at 8:38 AM, Lu <[email protected]> wrote: > Thanks. I've also posted it under that group. > > The question is also about how to save the results. For instance, I > can get 64 results. Is there any way I can create a file and write the > results to that file (of course on the server side)? It seems like > normal java I/O (inputstream or printwriter) is not working, but > theoretically it should, because on the server side, I can do any java- > related processing. Am I right? > > Thanks, > Lu > > > On Jun 21, 8:50 pm, Jeremy Geerdes <[email protected]> wrote: > > This would appear to be an App Engine question. While there are a number > of people in this group who use App Engine, and have even worked on the > development of App Engine, your question would likely find a quicker and > better answer in the group linked below: > > > > http://groups.google.com/group/google-appengine > > > > Jeremy R. Geerdes > > Effective website design & development > > Des Moines, IA > > > > For more information or a project quote:http://jgeerdes.home.mchsi.com > > [email protected] > > > > If you're in the Des Moines, IA, area, check out Debra Heights Wesleyan > Church! > > > > On Jun 21, 2010, at 3:41 AM, Lu wrote: > > > > > > > > > Hi, > > > > > I am trying to use FileOutputStream to print out results into a file, > > > but it is not supported by google app engine. > > > > > If I want to to write something to a file (on the sever side), what > > > should I do? > > > > > It seems like PrintWriter still does not work. > > > > > File file = new File("haha.txt"); > > > if(file.exists()){ > > > System.out.println("here "); > > > } > > > PrintWriter pw = new PrintWriter(file); > > > > > I will get error that says 'Caused by: > > > java.security.AccessControlException: access denied > > > (java.io.FilePermission haha.txt write)' > > > > > Thanks > > > > > -- > > > You received this message because you are subscribed to the Google > Groups "Google AJAX APIs" group. > > > To post to this group, send email to > [email protected]. > > > To unsubscribe from this group, send email to > [email protected]<google-ajax-search-api%[email protected]> > . > > > For more options, visit this group athttp:// > groups.google.com/group/google-ajax-search-api?hl=en.- Hide quoted text - > > > > - Show quoted text - > > -- > You received this message because you are subscribed to the Google Groups > "Google AJAX APIs" group. > To post to this group, send email to > [email protected]. > To unsubscribe from this group, send email to > [email protected]<google-ajax-search-api%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/google-ajax-search-api?hl=en. > > -- You received this message because you are subscribed to the Google Groups "Google AJAX APIs" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-ajax-search-api?hl=en.
