获取jpa实体类中定义的java.time.LocalDateTime的空值

Question

从我的

JpaRepository

方法中，我得到

null

作为

java.time.LocalDateTime

实体类中定义的

jpa

的值。

实体类

@Entity
@Table(name="otp_detail")
@JsonIgnoreProperties({"hibernateLazyInitializer", "handler"})
public class OtpDetail implements java.io.Serializable {


    private static final long serialVersionUID = 1L;
    private Integer id;
    private String msisdn;
    private String otp;
    @Column(name = "otp_validity", nullable = false,columnDefinition = "TIMESTAMP")
    private java.time.LocalDateTime otpValidity;
    private String mpin;
    private String isActive;
    private String token;
    public OtpDetail() {
    }

    public OtpDetail(String msisdn, String otp, java.time.LocalDateTime otpValidity, String isActive) {
        this.msisdn = msisdn;
        this.otp = otp;
        this.otpValidity = otpValidity;
        this.isActive = isActive;
    }

    public OtpDetail(String msisdn, String otp, java.time.LocalDateTime otpValidity, String mpin, String isActive) {
        this.msisdn = msisdn;
        this.otp = otp;
        this.otpValidity = otpValidity;
        this.mpin = mpin;
        this.isActive = isActive;
    }

    @Id
    @GeneratedValue(strategy = IDENTITY)

    @Column(name = "id", unique = true, nullable = false)
    public Integer getId() {
        return this.id;
    }

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

    @Column(name = "msisdn", unique = true, nullable = false, length = 45)
    public String getMsisdn() {
        return this.msisdn;
    }

    public void setMsisdn(String msisdn) {
        this.msisdn = msisdn;
    }

    @Column(name = "otp", nullable = false, length = 45)
    public String getOtp() {
        return this.otp;
    }

    public void setOtp(String otp) {
        this.otp = otp;
    }

    //@Temporal(TemporalType.TIMESTAMP)
    //@JsonFormat(pattern = "dd-MM-yyyy HH:mm:ss")
    //@Column(name = "otp_validity", nullable = false,columnDefinition = "TIMESTAMP")
    public java.time.LocalDateTime getOtpValidity() {
        return this.otpValidity;
    }

    public void setOtpValidity(java.time.LocalDateTime otpValidity) {
        this.otpValidity = otpValidity;
    }

    @Column(name = "mpin", length = 10)
    public String getMpin() {
        return this.mpin;
    }

    public void setMpin(String mpin) {
        this.mpin = mpin;
    }

    @Column(name = "isActive", nullable = false, length = 45)
    public String getIsActive() {
        return this.isActive;
    }

    public void setIsActive(String isActive) {
        this.isActive = isActive;
    }
    @Column(name = "token")
    public String getToken() {
        return token;
    }

    public void setToken(String token) {
        this.token = token;
    }

    @Override
    public String toString() {
        return "OtpDetail [id=" + id + ", msisdn=" + msisdn + ", otp=" + otp + ", otpValidity=" + otpValidity
                + ", mpin=" + mpin + ", isActive=" + isActive + ", token=" + token + "]";
    }   
}

存储库

public interface OtpDetailRepository extends JpaRepository<OtpDetail, Integer>{
        OtpDetail findByMsisdn(String msisdn);
}

控制器

@Autowired
OtpDetailRepository otpRepo;
@GetMapping(value="test")
public OtpDetail test(){

    OtpDetail otpObj=  otpRepo.findByMsisdn("90909091");
    return otpObj;
}

回复

{
    "id": 3,
    "msisdn": "90909091",
    "otp": "5130",
    "otpValidity": null, //Why am I getting null here?
    "mpin": "1234",
    "isActive": "true",
    "token": "943225746"
}

我在

mysql

中确实有 otp_validity 作为“2023-11-22 09:43:47”，但我得到的响应为空。早些时候我曾经使用

java.util.Date

。因为它已被弃用，现在想要使用

java.time.LocalDateTime

，它最好返回时间戳，即日期+时间。但它返回 null。我哪里错了？

Answer 1

@Column(name = "otp_validity", columnDefinition = "TIMESTAMP")
private LocalDateTime localDateTime() {
    return this.otpValidity;
}