hibernate联合主键
@Entity
@Table(name = "TABLE_NAME")
@IdClass(PK.class)
public class TableName implements Serializable{
@Id
@Column(name="ID1")
private String id1;
@Id
@Column(name="ID2")
private String id2;
@Column(name="OTHER")
private String other;
public class PK implements Serializable {
private String id1;
private String id2;
}