import org.springframework.beans.factory.annotation.Autowired; import org.springframework.http.ResponseEntity; import org.springframework.web.bind.annotation.*; @RestController @RequestMapping("/transportation") public class TransportationController<TransportationRepository> { @Autowired private TransportationRepository transportationRepository; @PostMapping("/create") public ResponseEntity<?> createTransportation(@RequestBody TransportationDto transportationDto) { Transportation transportation = new Transportation(); transportation.setFrom(transportationDto.getFrom()); transportation.setTo(transportationDto.getTo()); transportation.setDepartureTime(transportationDto.getDepartureTime()); transportation.setArrivalTime(transportationDto.getArrivalTime()); transportationRepository.save(transportation); return ResponseEntity.ok("Transportation created successfully"); } @GetMapping("/all") public ResponseEntity<?> getAllTransportations() { List<Transportation> transportations = transportationRepository.findAll(); return ResponseEntity.ok(transportations); } @GetMapping("/{id}") public ResponseEntity<?> getTransportationById(@PathVariable Long id) { Transportation transportation = transportationRepository.findById(id).orElse(null); if (transportation == null) { return ResponseEntity.notFound().build(); } return ResponseEntity.ok(transportation); } }这段代码中transportation的所有方法报错，比如Cannot resolve method 'setFrom' in 'Transportation'，请帮我修改

根据代码和错误信息看，Transportation类中没有setFrom()方法，因此需要在Transportation类中添加该方法。同样的，Transportation类中也需要添加setTo()、setDepartureTime()和setArrivalTime()方法。以下是修改后的Transportation类代码：

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import java.time.LocalDateTime;

@Entity
public class Transportation {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    private String from;

    private String to;

    private LocalDateTime departureTime;

    private LocalDateTime arrivalTime;

    public Long getId() {
        return id;
    }

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

    public String getFrom() {
        return from;
    }

    public void setFrom(String from) {
        this.from = from;
    }

    public String getTo() {
        return to;
    }

    public void setTo(String to) {
        this.to = to;
    }

    public LocalDateTime getDepartureTime() {
        return departureTime;
    }

    public void setDepartureTime(LocalDateTime departureTime) {
        this.departureTime = departureTime;
    }

    public LocalDateTime getArrivalTime() {
        return arrivalTime;
    }

    public void setArrivalTime(LocalDateTime arrivalTime) {
        this.arrivalTime = arrivalTime;
    }
}

修改后的Transportation类已经包含了setFrom()、setTo()、setDepartureTime()和setArrivalTime()方法。