Java 如何使用具有瞬态特性的Spring数据投影？

我将Spring数据与MongoDB一起使用，并为其中一个存储库使用投影接口。
问题是，实体上的临时字段未被识别为模型上的有效属性，因为它不是查询结果的一部分。[假设]

有解决办法吗

范例-

// Entity class fields 
@JsonProperty(access=Access.WRITE_ONLY)
private String password;
@Id
private String username;
private String displayName;
@DBRef
private Set<EmailAddress> emailAddresses = new HashSet<>();
@DBRef
@NotEmpty
private EmailAddress primaryEmailAddress;
private boolean hidePrimaryEmailAddress;
private String firstName;
private String lastName;
@JsonTypeInfo(use = com.fasterxml.jackson.annotation.JsonTypeInfo.Id.NONE)
private Set<Role> authorities;
private boolean accountNonExpired;
private boolean accountNonLocked;
private boolean credentialsNonExpired;
private boolean enabled;
@Transient
private String gravatarUrl;

.....

// Spring Data Projection 
public interface ProfileProjection {
  @Value("#{target.primaryEmailAddress.emailAddress}")
  String getEmailAddress();
  String getUsername();
  String getDisplayName();
  String getGravatarUrl();
}  

// Repository
public interface UserRepository extends ExtendedMongoRepository<SproutUser, String> {
    ProfileProjection findFirstByUsername(String username);
}  

---

我使用SPEL调用getter，而不是直接依赖于字段

public interface ProfileProjection {
    @Value("#{target.primaryEmailAddress.emailAddress}")
    String getEmailAddress();
    String getPrimaryEmailAddress();
    String getUsername();
    String getDisplayName();
    @Value("#{target.getGravatarUrl()}")
    String getGravatarUrl();
}

public interface ProfileProjection {
    @Value("#{target.primaryEmailAddress.emailAddress}")
    String getEmailAddress();
    String getPrimaryEmailAddress();
    String getUsername();
    String getDisplayName();
    @Value("#{target.getGravatarUrl()}")
    String getGravatarUrl();
}