}
/**不再监视一个问题*/
@At("/question/?/unwatch")
public void unwatch(String questionId, @Attr("me") User me) {
dao.update(Question.class, new BasicDBObject("_id", new ObjectId(questionId)), new BasicDBObject("$pop", new BasicDBObject("watchers", new DBRef(null, "user", new ObjectId(me.getId())))));
}