Dropwizard Hibernate无法定位persister错误

我已经为棒球统计api设置了Dropwizard项目和第一个端点。功能表和类名是rangerstats\u player/player。我试着对一个我称为rangerstats\u hitter\u season\u stats的表做同样的操作,但是当我尝试做一个简单的GET时,我遇到了下面的错误,并且没有找到解决方法或问题所在

org.hibernate.UnknownEntityTypeException: Unable to locate persister: core.HitterSeasonStats

下面是两个类/表的代码,以显示它们的相似性,因为我认为模式完全相同,我不知道会出什么问题。

HitterSeasonStats。java(注释了一些字段以使其工作,以防出现问题)

@Entity
@Table(name = "rangerstats_hitter_season_stats") 
public class HitterSeasonStats {
    @Id
    private long id;
//    @Column(name = "player_id")
//    private long playerId;
    private int g;
    private int pa;
    private int ab;
    //private double avg;
    private int h;
    private int single;
    @Column(name = "double")
    private int doubles;
    private int triple;
    private int hr;
    private int rbi;
    private int bb;
    private int k;
    private int hbp;
    private int sf;
//    private double slg;
//    private double obp;
//    private double ops;
//    private double war;
    //@Column(name = "season_year")
    //private Date seasonYear;

    public long getId() {
        return id;
    }
}

HitterSeasonStatsDAO。Java语言

public class HitterSeasonStatsDAO extends AbstractDAO<HitterSeasonStats> {
    public HitterSeasonStatsDAO(SessionFactory factory) {
        super(factory);
    }

    public Optional<HitterSeasonStats> findById(Long id) {
        return Optional.fromNullable(get(id));
    }

    public List<HitterSeasonStats> findByPlayer(Long playerId) {
        Criteria criteria = criteria().add(Restrictions.eq("playerId", playerId));
        return list(criteria);
    }

    public List<HitterSeasonStats> findByPlayerAndYear(Long playerId) {
    Criteria criteria = criteria().add(Restrictions.eq("playerId", playerId));
        return list(criteria);
    }
}

@Entity
@Table(name = "rangerstats_player")

@NamedQueries({
    @NamedQuery(name = "core.Player.findAll",
            query = "select p from Player p")

})

public class Player {
    @Id
    private long id;
    @Column(name = "first_name")
    private String firstName;
    @Column(name = "last_name")
    private String lastName;
    private String position;
    private String team;
    private String bat;
    @Column(name = "throw_hand")
    private String throwHand;
    private String height;
    private int age;
    private int weight;

    public long getId() {
        return id;
    }
    public String getfirstName() {
        return firstName;
    }
    public String getlastName() {
        return lastName;
    }
    ......
}

玩家道。Java语言

public class PlayerDAO extends AbstractDAO<Player> {

    public PlayerDAO(SessionFactory factory) {
        super(factory);
    }

    public Optional<Player> findById(Long id) {
        return Optional.fromNullable(get(id));
    }

    public List<Player> findAll() {
        return list(namedQuery("core.Player.findAll"));
    }
}

桌子

rangersstats=# \dt
                     List of relations
 Schema |               Name               | Type  |     Owner     
--------+----------------------------------+-------+---------------
 public | rangerstats_hitter_game_record   | table | owner
 public | rangerstats_hitter_season_stats  | table | owner
 public | rangerstats_pitcher_game_record  | table | owner
 public | rangerstats_pitcher_season_stats | table | owner
 public | rangerstats_player               | table | owner

编辑:

我相信我已经找到了导致问题的原因。这就是我注册HibernateBundle的方式。我把这篇文章整理成了教程,并从中提取了语法。我看到我只在包中使用Player类。我需要找到一种新方法来连接主应用程序类中的数据库。

 private final HibernateBundle<ApiConfig> hibernatePlayerBundle =
    new HibernateBundle<ApiConfig>(Player.class) {
    @Override
    public DataSourceFactory getDataSourceFactory(ApiConfig configuration) {
        return configuration.getDataSourceFactory();
    }
};

@Override
public void initialize(final Bootstrap<ApiConfig> bootstrap) {
    bootstrap.addBundle(hibernatePlayerBundle);
}

@Override
public void run(final ApiConfig configuration, final Environment environment) {
    final PlayerDAO playerDAO = new PlayerDAO(hibernatePlayerBundle.getSessionFactory());
    final HitterSeasonStatsDAO hitterSeasonStatsDAO = new HitterSeasonStatsDAO(hibernateHitterSeasonStatsBundle.getSessionFactory());
    environment.jersey().register(new HitterSeasonStatsResource(hitterSeasonStatsDAO));
    environment.jersey().register(new PlayerResource(playerDAO));

}

我试图用另一个类创建并添加另一个包,但看起来我们只能有一个包

java.lang.IllegalArgumentException: A metric named io.dropwizard.db.ManagedPooledDataSource.hibernate.active already exists

编辑:

我需要将逗号分隔的类列表传递给HibernateBundle构造函数,问题解决了!:)