MongoDB在java用认证失败

    Mongo mongo = new Mongo("10.0.0.47", 27017);
    DB db = mongo.getDB("policecase");
    boolean auth = db.authenticate("policeuser","policeuser".toCharArray());
    System.out.println(auth);

    这个数据库、用户名可密码都没问题

    mongodb服务器打印![图片说明](https://img-ask.csdn.net/upload/201505/14/1431570954_681027.png)