如何檢查JPA中兩個日期的相等性

Question

我無法檢查JPA中兩個日期的相等性。下面的比較工作正常，直到我添加出生日期。我不知道如果我的JPQL是正確的：

TypedQuery<Applicant> query = em.createQuery("select app " 
       + "from Applicant app where " 
       + "app.firstName = :firstName AND app.middleName = :middleName " 
       + "AND app.lastName = :lastName" 
       +" AND app.dob = :dateOfBirth", Applicant.class); 

      query.setParameter("firstName", searchableApplicant.getFirstName().trim()); 
      query.setParameter("middleName", searchableApplicant.getMiddleName().trim()); 
      query.setParameter("lastName", searchableApplicant.getLastName().trim()); 
      query.setParameter("dateOfBirth", searchableApplicant.getDob()); 

申請人對象屬性：

public class Applicant implements Serializable { 
private static final long serialVersionUID = 1L; 
@Id 
@GeneratedValue(strategy = GenerationType.IDENTITY) 
@Basic(optional = false) 
@Column(name = "applicant_id") 
private Integer applicantId; 
@Size(max = 45) 
@Column(name = "first_name") 
private String firstName; 
@Size(max = 45) 
@Column(name = "middle_name") 
private String middleName; 
@Size(max = 45) 
@Column(name = "last_name") 
private String lastName; 
@Size(max = 45) 
@Column(name = "maiden_name") 
private String maidenName; 
@Column(name = "dob") 
@Temporal(TemporalType.DATE) 
private Date dob; 

Answer 1

的JSF日期轉換器默認爲UTC時區。當使用UTC時區對這些日期進行解釋時（默認情況下，JSF會這樣做），您將獲得數小時的時間，因此前一天將被表示。

解決方法就在這裏： JSF page reflects Date incorrectly - 1 Day shifted