无法从db填充组合框值

Question

我有两个bean DoctorDetailsBean，PatientDetailsBean，想在patientRegistration.xhtml中填写一个包含所有医生姓名的组合框

     <h:selectOneMenu value="#{patientDetailsBean.refDr}" style="font-size: medium" >
        <f:selectItems value="#{patientDetailsBean.drDetailsbeanList}" var="dr"       itemLabel="#{dr.doctorName}" itemValue="#{dr.doctorId}" />
     </h:selectOneMenu>

DoctorDetailsBean：

       @ManagedBean(name="doctorBean")
       @SessionScoped
       public class DoctorDetailsBean {
       private Long doctorId;
       private String doctorName;
       private String place;
       private Long phoneNumber;
       //setters&getters
        }

PatientdetailsBean：

       @ ManagedBean(name= "patientDetailsBean")
       @SessionScoped
       public class PatientDetailsBean implements Serializable {
       private Long patientId;
       private String patientName;
       private long refDr;

@ManagedProperty (value ="#{doctorBean}")
private DoctorDetailsBean doctorDetailsBean;
private List<Doctor> drList;
private List<DoctorDetailsBean> drDetailsbeanList;
private PatientDAO patientDAO;
private DoctorDAO doctorDAO;
   //setters&getters
  public PatientDetailsBean() {
   }
     @PostConstruct  
 public void init() throws AppException,AppSysException{
     drList = new ArrayList<Doctor>();
     drList = doctorDAO.getAllDoctors();
     drDetailsbeanList = new ArrayList<DoctorDetailsBean>();
           for (Doctor doctor : drList) {
            DoctorDetailsBean  doctorDetailsBean  = new DoctorDetailsBean();
            doctorDetailsBean.setDoctorId(doctor.getDoctorId());
            doctorDetailsBean.setDoctorName(doctor.getDoctorName());
            doctorDetailsBean.setPlace(doctor.getPlace());
            doctorDetailsBean.setPhoneNumber(doctor.getPhoneNumber());
            drDetailsbeanList.add(doctorDetailsBean);
                      }            }

如何解决我的问题

Answer 1

您的问题是drDetailsbeanList的类型。 List<DoctorDetailsBean>不正确。创建返回List<SelectItem>并在xhtml中使用它的方法。