Are your albums all private? I don't see any public albums for that user.

Cheers,
-Jeff

On Thu, Jan 15, 2009 at 6:10 PM, caton <[email protected]> wrote:

>
> hello, I am new java developer,
> i try to use the example "Request a list of albums"(http://
> code.google.com/intl/zh-TW/apis/picasaweb/
> developers_guide_java.html#Albums<http://code.google.com/intl/zh-TW/apis/picasaweb/developers_guide_java.html#Albums>)
> , and return error in Message
> [  Invalid value for attribute : 'null'  ].
>
> But I try another example such as "List photos in album"  (http://
> code.google.com/intl/zh-TW/apis/picasaweb/
> developers_guide_java.html#ListPhotos<http://code.google.com/intl/zh-TW/apis/picasaweb/developers_guide_java.html#ListPhotos>)
>  , can return the photo list.
>
> if you know why? please tell me , thank you!
>
>
>
> my test code
>
> -----------------------------------------------------------------------------
>
> import java.net.URL;
> import java.util.Properties;
>
> import com.google.gdata.client.photos.PicasawebService;
> import com.google.gdata.data.photos.AlbumEntry;
> import com.google.gdata.data.photos.UserFeed;
>
>
> public class picasaTest {
>
>        public static void main(String[] args) {
>
>                try{
>                     PicasawebService myService = new
> PicasawebService("example
> Picasa");
>                     myService.setUserCredentials("[email protected]
> ",
> "MyPassword");
>                     URL feedUrl = new URL("
> http://picasaweb.google.com/data/feed/
> api/user/chiachunchuang?kind=album<http://picasaweb.google.com/data/feed/api/user/chiachunchuang?kind=album>
> ");
>
>                     UserFeed myUserFeed = myService.getFeed(feedUrl,
> UserFeed.class);--->       error in this line
>
>                     for (AlbumEntry myAlbum : myUserFeed.getAlbumEntries())
> {
>
> System.out.println(myAlbum.getTitle().getPlainText());
>                     }
>                  }
>
>                catch(Exception ex){
>                        System.err.println("Expection:"+ex.getMessage());
>                        }
>        }
>
> }
>
> -------------------------------------------------------------------------------
>
> >
>

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