if (locationId != null && locationId.length() > 0) {
params.add(new BasicNameValuePair("location", locationId));
} else {
params.add(new BasicNameValuePair("location", "all"));
}
DoubanEventFeedObj result = this.client.getResponse(RequestUrls.DOUBAN_EVENT_PREFIX + "s", params, DoubanEventFeedObj.class, false);
return result;
}