关于Spring Date Jpa 操作数据表的时候unique无效了？：配置报错 

@Getter
@Setter
@Entity
@Table(name = "C_User")
@MetaData(value = "系统用户")
@JsonInclude(Include.NON_EMPTY)
@XmlAccessorType(XmlAccessType.PROPERTY)
public class SysUser implements Serializable{
	
	private static final long serialVersionUID = 1L;

	@MetaData("主键")
	@Id
	@GenericGenerator(name = "system-uuid", strategy = "org.hibernate.id.UUIDGenerator")
	@GeneratedValue(strategy = GenerationType.SEQUENCE,generator = "system-uuid")
	@Column(unique = true, length = 36, nullable = false)
	private String id; 
	
	@MetaData("用户名")
	@Column(name="UserName",unique=true)
	private String UserName;
	
	@MetaData("密码")
	@Column(name="PassWord")
	private String PassWord;
	
	@MetaData("角色")
	@OneToMany(mappedBy="User",cascade = CascadeType.ALL,orphanRemoval=true)
	private Set<SysRole> allRole = new HashSet<SysRole>();