Java：我如何將從數據庫返回的字符串轉換爲XML

Question

我想寫一個訪問數據庫，然後返回XML格式的字符串/對象的方法這裏是我有這樣的方法遠。我看過POJO，我不相信我在找什麼。我需要遍歷並檢索每個xml子節點。然後以正確的格式顯示它。

15 public Object getAppointment(String patientid){ 
16  DB db = new DB(); 
17  List<Object> objs = db.getData("Appointment", "patientid='"+patientid+"'"); 
18  Patient patient = null; 
19  Phlebotomist phleb = null; 
20  PSC psc = null; 
21  for (Object obj : objs){ 
22   patient = ((Appointment)obj).getPatientid(); 
23   phleb = ((Appointment)obj).getPhlebid(); 
24   psc = ((Appointment)obj).getPscid(); 
25   return obj; 
26  } 
27  return ""; 
28 } 

我需要在XML格式的obj變量，但我不能弄明白。這是它現在返回的內容。

Appointment[id=710, Date: 2004-02-01, Time: 13:00:00 
Phlebotomist: Phlebotomist[id=110, Name: Elizabeth Corday] 
Patient: Patient[id=220, Name: Alice Wonderland, Address: 201 Mt. Hope Avenue, Insurance? Y, DOB: 1985-10-12 
Physician: Physician[id=20, Name: Dr. Fine]] 
PSC: PSC[id=510, name= Outer Banks]] 
Test: AppointmentLabTest[appointmentLabTestPK=AppointmentLabTestPK[apptid=710, labtestid=86900, dxcode=292.9] 
Lab Test: LabTest[id=86900, Name: Blood Group & Rh Type, whole BloodCost: 15.0] 
Diagnosis: Diagnosis[code=292.9, Name: Caffeine – Related Disorder NOS]] 

從數據庫返回時，我需要它看起來像這樣。

<?xml version="1.0" encoding="UTF-8" standalone="no"?> 
<AppointmentList> 
    <appointment date="2016-12-30" id="791" time="10:00:00"> 
     <patient id="220"> 
      <name>Alice Wonderland</name> 
      <address>201 Mt. Hope Avenue</address> 
      <insurance>Y</insurance> 
      <dob>1985-10-12</dob> 
     </patient> 
     <phlebotomist id="110"> 
      <name>Elizabeth Corday</name> 
     </phlebotomist> 
     <psc id="520"> 
      <name>Down Town</name> 
     </psc> 
     <allLabTests> 
      <appointmentLabTest apptointmentId="791" dxcode="307.3" labTestId="86609"/> 
      <appointmentLabTest apptointmentId="791" dxcode="292.9" labTestId="86900"/> 
     </allLabTests> 
    </appointment> 
</AppointmentList> 

Answer 1

看到這個問題：Binding XML using POJO and JAXB annotations。

您可以創建海關POJO並用JAXB對其進行註釋以獲得期望輸出