Here is what I did to upload: http://demofileuploadgae.appspot.com/ -
demo
http://code.google.com/p/gwt-examples/source/browse/#svn/trunk/DemoUpload/src/org/gonevertical/upload/server%3Fstate%3Dclosed
- Code

On Aug 2, 5:07 pm, GKotta <[email protected]> wrote:
> Hi Tom,
>
> thanks for your answer. I tried using your code and I got the
> following error. I imported the BlobstoreInputStream, and it compiles,
> but I get a ClassNotFoundError. I am using eclipse with the gwt plugin
>
> Code:
>
> import com.google.appengine.api.blobstore.BlobstoreInputStream;
>
> BufferedReader reader = new BufferedReader((new InputStreamReader(new
>                                         BlobstoreInputStream(new
> BlobKey(filename)))));
>
> Error:
>
> java.lang.NoClassDefFoundError: com/google/appengine/api/blobstore/
> BlobstoreInputStream
>         at java.lang.Class.getDeclaredConstructors0(Native Method)
>         at java.lang.Class.privateGetDeclaredConstructors(Unknown
> Source)
>         at java.lang.Class.getConstructor0(Unknown Source)
>         at java.lang.Class.newInstance0(Unknown Source)
>         at java.lang.Class.newInstance(Unknown Source)
>         at org.mortbay.jetty.servlet.Holder.newInstance(Holder.java:
> 153)
>         at
> org.mortbay.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:
> 428)
>         at
> org.mortbay.jetty.servlet.ServletHolder.getServlet(ServletHolder.java:
> 339)
>         at
> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:
> 487)
>         at org.mortbay.jetty.servlet.ServletHandler
> $CachedChain.doFilter(ServletHandler.java:1166)
>         at
> com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFi 
> lter.java:
> 51)
>         at org.mortbay.jetty.servlet.ServletHandler
> $CachedChain.doFilter(ServletHandler.java:1157)
>         at
> com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(Trans 
> actionCleanupFilter.java:
> 43)
>         at org.mortbay.jetty.servlet.ServletHandler
> $CachedChain.doFilter(ServletHandler.java:1157)
>         at
> com.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFile 
> Filter.java:
> 122)
>         at org.mortbay.jetty.servlet.ServletHandler
> $CachedChain.doFilter(ServletHandler.java:1157)
>         at
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:
> 388)
>         at
> org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:
> 216)
>         at
> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:
> 182)
>         at
> org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:
> 765)
>         at
> org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:
> 418)
>         at
> com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle(DevAppEn 
> gineWebAppContext.java:
> 70)
>         at
> org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:
> 152)
>         at
> com.google.appengine.tools.development.JettyContainerService
> $ApiProxyHandler.handle(JettyContainerService.java:349)
>         at
> org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:
> 152)
>         at org.mortbay.jetty.Server.handle(Server.java:326)
>         at
> org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:
> 542)
>         at org.mortbay.jetty.HttpConnection
> $RequestHandler.content(HttpConnection.java:938)
>         at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:755)
>         at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:
> 218)
>         at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:
> 404)
>         at
> org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:
> 409)
>         at org.mortbay.thread.QueuedThreadPool
> $PoolThread.run(QueuedThreadPool.java:582)
> Caused by: java.lang.ClassNotFoundException:
> com.google.appengine.api.blobstore.BlobstoreInputStream
>         at java.net.URLClassLoader$1.run(Unknown Source)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at java.net.URLClassLoader.findClass(Unknown Source)
>         at java.lang.ClassLoader.loadClass(Unknown Source)
>         at
> com.google.appengine.tools.development.IsolatedAppClassLoader.loadClass(Iso 
> latedAppClassLoader.java:
> 151)
>         at java.lang.ClassLoader.loadClass(Unknown Source)
>         ... 33 more
>
> Can you help?
>
> I should also mention that I import the following classes and they
> work:
> import com.google.appengine.api.blobstore.BlobKey;
> import com.google.appengine.api.blobstore.BlobstoreService;
> import com.google.appengine.api.blobstore.BlobstoreServiceFactory;
>
> thanks

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