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这里是我的查询，我试图从Job类获得id和userNotes。我无法从JPQL中选择特定的列吗？
@Query("SELECT j.id, j.userNotes FROM Job j WHERE j.bookingTime BETWEEN :stDate AND :edDate")
List<Job> getDriverCalendar(@Param("stDate") Timestamp stDate, @Param("edDate") Timestamp edDate);
Job.java
package com.housecar.model;
import java.math.BigDecimal;
import java.sql.Timestamp;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.EntityListeners;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.OneToOne;
import javax.persistence.Table;
import org.springframework.data.jpa.domain.support.AuditingEntityListener;
@Entity
@EntityListeners(AuditingEntityListener.class)
@Table(name = "hc_job")
public class Job{
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
@Column(name = "ride_time")
private Timestamp rideTime;
@Column(name = "booking_time")
private Timestamp bookingTime;
@Column(name = "guest_id")
private Long guestId;
@Column(name = "booked_user_id")
private Long bookedUserId;
@Column(name = "car_id")
private Long carId;
@Column(name = "pickup_location")
private String pickupLocation;
@Column(name = "drop_location")
private String dropLocation;
@Column(name = "trip_type")
private Character tripType;
@Column(name = "is_private_job")
private Boolean isPrivateJob;
@Column(name = "estimated_fare")
private BigDecimal estimatedFare;
@Column(name = "actual_fare")
private BigDecimal actualFare;
@Column(name = "tip")
private BigDecimal tip;
@Column(name = "payment_status")
private Character paymentStatus;
@Column(name = "user_notes")
private String userNotes;
@Column(name = "cancellation_notes")
private String cancellationNotes;
@Column(name = "status")
private Character status;
@OneToOne
@JoinColumn(name = "id", referencedColumnName = "id", insertable = false, updatable = false)
private JobDriverRating jobDriverRating;
@OneToOne
@JoinColumn(name = "id", referencedColumnName = "id", insertable = false, updatable = false)
private JobCostSplit jobCostSplit;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public Long getGuestId() {
return guestId;
}
public void setGuestId(Long guestId) {
this.guestId = guestId;
}
public Long getBookedUserId() {
return bookedUserId;
}
public void setBookedUserId(Long bookedUserId) {
this.bookedUserId = bookedUserId;
}
public Long getCarId() {
return carId;
}
public void setCarId(Long carId) {
this.carId = carId;
}
public String getPickupLocation() {
return pickupLocation;
}
public void setPickupLocation(String pickupLocation) {
this.pickupLocation = pickupLocation;
}
public String getDropLocation() {
return dropLocation;
}
public void setDropLocation(String dropLocation) {
this.dropLocation = dropLocation;
}
public Character getTripType() {
return tripType;
}
public void setTripType(Character tripType) {
this.tripType = tripType;
}
public Boolean getIsPrivateJob() {
return isPrivateJob;
}
public void setIsPrivateJob(Boolean isPrivateJob) {
this.isPrivateJob = isPrivateJob;
}
public BigDecimal getEstimatedFare() {
return estimatedFare;
}
public void setEstimatedFare(BigDecimal estimatedFare) {
this.estimatedFare = estimatedFare;
}
public BigDecimal getActualFare() {
return actualFare;
}
public void setActualFare(BigDecimal actualFare) {
this.actualFare = actualFare;
}
public BigDecimal getTip() {
return tip;
}
public void setTip(BigDecimal tip) {
this.tip = tip;
}
public Character getPaymentStatus() {
return paymentStatus;
}
public void setPaymentStatus(Character paymentStatus) {
this.paymentStatus = paymentStatus;
}
public String getUserNotes() {
return userNotes;
}
public void setUserNotes(String userNotes) {
this.userNotes = userNotes;
}
public String getCancellationNotes() {
return cancellationNotes;
}
public void setCancellationNotes(String cancellationNotes) {
this.cancellationNotes = cancellationNotes;
}
public Character getStatus() {
return status;
}
public void setStatus(Character status) {
this.status = status;
}
public JobDriverRating getJobDriverRating() {
return jobDriverRating;
}
public void setJobDriverRating(JobDriverRating jobDriverRating) {
this.jobDriverRating = jobDriverRating;
}
public Timestamp getRideTime() {
return rideTime;
}
public void setRideTime(Timestamp rideTime) {
this.rideTime = rideTime;
}
public Timestamp getBookingTime() {
return bookingTime;
}
public void setBookingTime(Timestamp bookingTime) {
this.bookingTime = bookingTime;
}
public JobCostSplit getJobCostSplit() {
return jobCostSplit;
}
public void setJobCostSplit(JobCostSplit jobCostSplit) {
this.jobCostSplit = jobCostSplit;
}
}
@Query("SELECT j.id, j.userNotes FROM Job j WHERE j.bookingTime BETWEEN :stDate AND :edDate")该查询返回[ ]。
@Query("SELECT j FROM Job j WHERE j.bookingTime BETWEEN :stDate AND :edDate")此查询返回完整的Job对象。
有在你的JPQL –
@NeilStockton：没有左外联合，是的，我改变了这个问题。 – Madhu
问题是Spring数据JPA（你的'@ Query'）不是JPA。使用JPA和JPQL，显然你的JPQL是正确的。这正是Spring Data JPA希望你做的事情，以便返回“Object []”......也许该方法不应该返回一个Job！因为结果不是这样。因此标签改变了 –