My Android application requires to cache the response text from a web service call using DefaultHttpClient. The cache should be valid till the expiry time set in the Http response header.
I found similar questions but they were complaints that the DefaultHttpClient is caching their responses. Funny I need it but could not get working. Or there solutions suggested that are file based.<br/> <http://stackoverflow.com/questions/5575181/does-android-keeps-the- images-downloaded-from-http-in-cache><br/> <http://stackoverflow.com/questions/5389524/how-to-do-image-caching-in- android><br/> I wrote a sample app that requests for a url on click of a button and prints the response status and headers. DefaultHttpClient client = new DefaultHttpClient(); HttpGet request = new HttpGet(url); HttpResponse response; response = client.execute(request); System.out.println("Response status - " + response.getStatusLine().getStatusCode()); And my GAE servlet code is, public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException { resp.setContentType("text/plain"); resp.setHeader("Expires", "Wed, 11 Jul 2012 12:00:00 GMT"); resp.setHeader("Cache-Control", "max-age=2592000"); resp.getWriter().println("Hi!"); } Clicking on the button the every time gives me the status code as 200. I expect this should be the case for the first time only. Response status - 200 ***** Response Headers ***** Content-Type - text/plain; charset=iso-8859-1 Expires - Wed, 11 Jul 2012 12:00:00 GMT Cache-Control - max-age=2592000 Date - Wed, 13 Jul 2011 06:54:57 GMT Server - Google Frontend Transfer-Encoding - chunked I edited the servlet and published; the client reads the latest change. I tested the servlet application on Chrome browser and caching works fine. I added the Cache-control property in the request header, but did not get the expected result. How do I ensure the DefaultHttpClient caches the response content and does not send request to the server again until the expiry time? -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
