//JPA 基类的标识
@MappedSuperclass
public abstract class PkidEntity {

    /**
     * 主键及主键生成方式
     */
    @Id
    @GenericGenerator(name="hibernate-uuid",strategy="uuid")
    @GeneratedValue(generator="hibernate-uuid")
    @Column(name="pkid", nullable=false)
    protected String pkid;
    

    public String getPkid() {
        return pkid;
    }

    public void setPkid(String pkid) {
        this.pkid = pkid;
    }

    
}

@MappedSuperclass
public abstract class IdEntity {

    protected Long id;

    @Id
    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "PKGen")  
    @SequenceGenerator(name = "PKGen", sequenceName = "HIBERNATE_SEQUENCE", allocationSize = 1)  
    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }
}

    @Id   
    @GeneratedValue(generator = "system-uuid")   
    @GenericGenerator(name = "system-uuid", strategy = "uuid") 
    public String getId() {
    return this.id;
    }

    public void setId(String id) {
    this.id = id;
    }

------解决方案--------------------

看了下，原来你是用ORACLE数据库的序列自增的，你就用@SequenceGenerator

------解决方案--------------------

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引用:

看了下，原来你是用ORACLE数据库的序列自增的，你就用@SequenceGenerator

我不想用序列啊，我想用自动生成的id
新增和修改的方法都是save