hibernate多对多注解式开发

@Entity                                                                  //实体@Table(name = "Game")                                                   //表名public class Game {    @Id                                                                   //指定主键    @GeneratedValue(strategy = GenerationType.SEQUENCE,generator = "sql_Game")      //主键生成策略    @SequenceGenerator(name="sql_Game",sequenceName = "sql_Game",allocationSize = 1,initialValue = 1)   //声明主键的生成策略    private Integer gid;    @Column    private String gname;    @ManyToMany(cascade = CascadeType.ALL)                     //指定多对多的关系，同时设置级联    //制定第三张表，指定本表与中间表的外键对应，另一张表与第三张表的外键的对应关系    @JoinTable(name="PG",joinColumns = {@JoinColumn(name = "gid")},inverseJoinColumns = {@JoinColumn(name = "pid")})    private Set<Player> player=new HashSet<Player>();    public Integer getGid() {        return gid;    }    public void setGid(Integer gid) {        this.gid = gid;    }    public String getGname() {        return gname;    }    public void setGname(String gname) {        this.gname = gname;    }    public Set<Player> getPlayer() {        return player;    }    public void setPlayer(Set<Player> player) {        this.player = player;    }}

@Entity@Table(name = "Player")public class Player {    @Id    @GeneratedValue(strategy = GenerationType.SEQUENCE,generator = "sql_Play")    @SequenceGenerator(name="sql_Play",sequenceName = "sql_Play",allocationSize = 1,initialValue = 1)    private Integer pid;    @Column    private String pname;    @ManyToMany(cascade = CascadeType.ALL,mappedBy = "player")    private Set<Game> game=new HashSet<Game>();    public Integer getPid() {        return pid;    }    public void setPid(Integer pid) {        this.pid = pid;    }    public String getPname() {        return pname;    }    public void setPname(String pname) {        this.pname = pname;    }    public Set<Game> getGame() {        return game;    }    public void setGame(Set<Game> game) {        this.game = game;    }}

 @Test    public void test01(){        Game game1=new Game();        game1.setGname("CS");        Game game2=new Game();        game2.setGname("C#");        Player player1=new Player();        player1.setPname("吃鸡");        Player player2=new Player();        player2.setPname("王者荣耀");        game1.getPlayer().add(player1);        game1.getPlayer().add(player2);        game2.getPlayer().add(player1);        game2.getPlayer().add(player2);        player1.getGame().add(game1);        player1.getGame().add(game2);        player2.getGame().add(game1);        player2.getGame().add(game2);        session.save(game1);        session.save(game2);        tx.commit();        System.out.println("ok!");    }

只需要在主表做级连就可以了，上面的代码只是简单的测试 。