JPA 예외 질문드려요!

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아래 코드를 통해서 User를 save() 하면 예외가 발생하네요.의심되는 건 BaseDateTimeAudit의 Instant 값인데...해당 값이 문제가 맞다면 왜 내부적으로 String으로 타입 변환을 시도하는지 해결 방법은 무엇인지 알고 싶습니다.도와주세용!java.lang.ClassCastException: Cannot cast java.lang.Long to java.lang.Stringat java.base/java.lang.Class.cast(Class.java:3889) ~[na:na]at edward.iv.restapi.user.model.Address_Accessor_lv25y4.setProperty(Unknown Source) ~[main/:na]&#64;Data &#64;MappedSuperclass &#64;EntityListeners(AuditingEntityListener.class) &#64;JsonIgnoreProperties( value &#61; {&#34;createdDate&#34;, &#34;lastModifiedDate&#34;}, allowGetters &#61; true ) public abstract class BaseDateTimeAudit implements Serializable { &#64;Serial private static final long serialVersionUID &#61; 6335008205386729057L; &#64;CreatedDate &#64;Column(nullable &#61; false, updatable &#61; false) private Instant createdDate; &#64;LastModifiedDate &#64;Column(nullable &#61; false) private Instant lastModifiedDate; }&#64;Getter &#64;Setter &#64;NoArgsConstructor &#64;EqualsAndHashCode(callSuper &#61; true) &#64;Accessors(chain &#61; true) &#64;Entity &#64;Table(name &#61; &#34;ADDRESS&#34;) public class Address extends BaseAudit { &#64;Serial private static final long serialVersionUID &#61; 1950301872971220671L; &#64;Id &#64;GeneratedValue(strategy &#61; GenerationType.IDENTITY) private long id; &#64;Column(name &#61; &#34;ADDRESS_LINE_01&#34;) private String addressLine01; &#64;Column(name &#61; &#34;ADDRESS_LINE_02&#34;) private String addressLine02; &#64;Column(name &#61; &#34;CITY&#34;) private String city; &#64;Column(name &#61; &#34;STATE&#34;) private String state; &#64;Column(name &#61; &#34;ZIP_CODE&#34;) private String zipCode; &#64;OneToOne &#64;JoinColumn(name &#61; &#34;ID&#34;, referencedColumnName &#61; &#34;USER_ID&#34;) private User user; }&#64;Getter &#64;Setter &#64;NoArgsConstructor &#64;EqualsAndHashCode(callSuper &#61; true) &#64;Accessors(chain &#61; true) &#64;Entity &#64;Table(name &#61; &#34;USERS&#34;, uniqueConstraints &#61; { &#64;UniqueConstraint(columnNames &#61; {&#34;USER_NAME&#34;}), &#64;UniqueConstraint(columnNames &#61; {&#34;EMAIL&#34;}) }) public class User extends BaseDateTimeAudit { &#64;Id &#64;GeneratedValue(strategy &#61; GenerationType.IDENTITY) private Long id; &#64;Column(name &#61; &#34;FIRST_NAME&#34;, length &#61; 40) private String firstName; &#64;Column(name &#61; &#34;LAST_NAME&#34;, length &#61; 40) private String lastName; &#64;Column(name &#61; &#34;USER_NAME&#34;, length &#61; 20) private String username; &#64;Column(name &#61; &#34;ENCRYPTED_PASSWORD&#34;, length &#61; 100) private String password; &#64;Column(name &#61; &#34;PHONE&#34;, length &#61; 30) private String phone; &#64;Column(name &#61; &#34;EMAIL&#34;, length &#61; 40) private String email; &#64;JsonIgnore &#64;OneToOne(mappedBy &#61; &#34;user&#34;, cascade &#61; CascadeType.ALL, orphanRemoval &#61; true) private Address address; &#64;ManyToOne(fetch &#61; FetchType.EAGER) private Role role; public User setAddress(Address address) { if (address &#61;&#61; null) return this; this.address &#61; address; address.setUser(this); return this; } } &#64;Override public UserDto addUser(SignUpRequest signUpRequest) { if (Boolean.TRUE.equals(userRepository.existsByUsername(signUpRequest.getUsername()))) { throw new ApiException(HttpStatus.BAD_REQUEST, &#34;Username is already taken&#34;); } if (Boolean.TRUE.equals(userRepository.existsByEmail(signUpRequest.getEmail()))) { throw new ApiException(HttpStatus.BAD_REQUEST, &#34;Email is already taken&#34;); } String firstName &#61; signUpRequest.getFirstName(); String lastName &#61; signUpRequest.getLastName(); String username &#61; signUpRequest.getUsername(); String password &#61; passwordEncoder.encode(signUpRequest.getPassword()); String phone &#61; signUpRequest.getPhone(); String email &#61; signUpRequest.getEmail(); Address address &#61; signUpRequest.getAddress(); if (address !&#61; null) { address.setCreatedBy(username); address.setLastModifiedBy(username); } User user &#61; new User() .setFirstName(firstName).setLastName(lastName) .setUsername(username).setPassword(password) .setPhone(phone).setEmail(email) .setAddress(address); Role role; if (userRepository.count() &#61;&#61; 0) { role &#61; roleRepository.findByName(RoleName.ADMIN) .orElseThrow(() -> new AppException(&#34;USER_ROLE_NOT_SET&#34;)); } else { role &#61; roleRepository.findByName(RoleName.USER) .orElseThrow(() -> new AppException(&#34;USER_ROLE_NOT_SET&#34;)); } user.setRole(role); User result &#61; userRepository.save(user); return UserDto.entityToDto(result); }

초무쿤 · Answer

Instant 로는 해본적이 없는데.LocalDateTime 으로 한번 해보시죠.

JPA 예외 질문드려요!

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