springmvc 联合主键注解

springmvc联合主键配置
@Embedable
public class PK implements java.io.Serializable  {
  @Column
  private String first;

  @Column
  private String second;

  //hashCode equals方法必须重写
}

@Entity
public class Person {

  @EmbeddedId
  private PK pk;

  //........
}
引用于：http://bbs.csdn.net/topics/320087945