java - Google Reader API Authentication -

i trying authenticate on google api service using snippet:

resttemplate resttemplate = new resttemplate(); list<httpmessageconverter<?>> converters =    new arraylist<httpmessageconverter<?>> resttemplate.getmessageconverters()); converters.add(new propertieshttpmessageconverter()); resttemplate.setmessageconverters(converters);  properties result = preparepostto(authentication_url)                 .using(resttemplate)                 .expecting(properties.class)                 .withparam("accounttype", "hosted_or_google")                 .withparam("email", email)                 .withparam("passwd", password)                 .withparam("service", "reader")                 .withparam("source", "google-like-filter")                 .execute(); string token = (string) result.get("auth"); 

now have token like: dqaaai...kz6ol8kb56_afnfc (more 100 chars length) , try url:

url url = new url(likers_url + "?i=" + id); httpurlconnection connection = (httpurlconnection)url.openconnection(); connection.addrequestproperty("authorization", "googlelogin auth=" + token); return url; 

but while getting content using url 401 client error exception. can be?

according question google reader authentication problem should fine.

i can content pasting url browser.

try using oauth google reader authentication/authorization. need use oauth library , register app google oauth consumer key/secret.

you can use oauth.googlecode.com or scribe.