环信 rest api 好友在线问题

 我登录之后  查询在线状态  为什么每次都是OFFline 
{access_token=YWMtcYBmyDzyEeWrTMdDArRLuwAAAVA8yENifi32Xvtj5sPcVIOonbo9PfLDM3s, expires_in=5184000, user={uuid=74fb45ba-3b13-11e5-8dcf-2f0848fe29fb, type=user, created=1438739045771, modified=1438739045771, username=lijian101, activated=true}, statusCode=200}

{action=get, uri=http://a1.easemob.com/13043990276/jyd/users/lijian101/status, entities=[], data={lijian101=offline}, timestamp=1438999678743, duration=6, statusCode=200}