JSONObjectとJSONArray

Question

最初はよく英語が話せませんので、ご理解ください。

JAVAと「バス到着システムAPI」を使用していますが、問題があります。

到着するバスが1つしかない場合、「item」はJSONObjectです。

が、到着する2以上のバスがある場合は、 "アイテム" JSONArrayです。

とにかく私は、任意のアイデアを持っていない...任意のアイデアがある場合は、 はありがとう...私を助けてください。

ここに私のコードです。おそらくサービスにおける設計上の欠陥があるものの

@Override 
public void initialize(URL arg0, ResourceBundle arg1) { 
    no1.setText(""); no2.setText(""); no3.setText(""); no4.setText(""); no5.setText(""); no6.setText(""); no7.setText(""); no8.setText(""); 
    info1.setText(""); info2.setText(""); info3.setText(""); info4.setText(""); info5.setText(""); info6.setText(""); info7.setText(""); info8.setText(""); 
    station1.setText(""); station2.setText(""); station3.setText(""); station4.setText(""); station5.setText(""); station6.setText(""); station7.setText(""); station8.setText(""); 
    time1.setText(""); time2.setText(""); time3.setText(""); time4.setText(""); time5.setText(""); time6.setText(""); time7.setText(""); time8.setText(""); 
} 

private ArrayList<String> arrstation = new ArrayList<>(); 
private ArrayList<String> arrtime = new ArrayList<>(); 
private ArrayList<String> busno = new ArrayList<>(); 
private ArrayList<String> businfo = new ArrayList<>(); 
private ArrayList<Integer> intarrtime = new ArrayList<>(); 

public void Bus(){ 
    try{ 

     StringBuilder urlBuilder = new StringBuilder("http://openapi.tago.go.kr/openapi/service/ArvlInfoInqireService/getSttnAcctoArvlPrearngeInfoList"); /*URL*/ 
     urlBuilder.append("?" + URLEncoder.encode("ServiceKey","UTF-8") + "=Tcit3Up%2FxLhDOivx1nH8pb9%2FJB1g44Wy7OC1pISvRlUCt2fnnPJyD0si1jFkvjlYXaixwMD%2BVV5j76M8i%2BEpuA%3D%3D"); /*Service Key*/ 
     urlBuilder.append("&" + URLEncoder.encode("cityCode","UTF-8") + "=" + URLEncoder.encode("32010", "UTF-8")); /*도시코드*/ 
     urlBuilder.append("&" + URLEncoder.encode("nodeId","UTF-8") + "=" + URLEncoder.encode("CCB250001349", "UTF-8")); /*정류소ID*/ 
     urlBuilder.append("&" + URLEncoder.encode("_type", "UTF-8") + "=" + URLEncoder.encode("json", "UTF-8")); 
     URL url = new URL(urlBuilder.toString()); 
     HttpURLConnection conn = (HttpURLConnection) url.openConnection(); 
     conn.setRequestMethod("GET"); 
     conn.setRequestProperty("Content-type", "application/json"); 
     System.out.println("Response code: " + conn.getResponseCode()); 
     BufferedReader rd; 
     if(conn.getResponseCode() >= 200 && conn.getResponseCode() <= 300) { 
      rd = new BufferedReader(new InputStreamReader(conn.getInputStream())); 
     } else { 
      rd = new BufferedReader(new InputStreamReader(conn.getErrorStream())); 
     } 
     String result = new String(); 
     String line; 
     while ((line = rd.readLine()) != null) { 
      result=result.concat(line); 
     } 
     System.out.println(result); 

     JSONParser jsonParser = new JSONParser(); 
     JSONObject jsonObj = (JSONObject) jsonParser.parse(result); 
     System.out.println("parsing start"); 

     JSONObject response = (JSONObject) jsonObj.get("response"); 

     JSONObject body = (JSONObject) response.get("body"); 

     JSONObject items = (JSONObject) body.get("items"); 

     JSONArray itemArray = (JSONArray) items.get("item"); 


     JSONObject item_array[] = new JSONObject[10]; 


     for(int i=0; i<=8; i++){ 
      item_array[i] = (JSONObject) itemArray.get(i); 

      busno.add(item_array[i].get("routeno").toString()); 

      businfo.add(item_array[i].get("routetp").toString()); 
      arrtime.add(item_array[i].get("arrtime").toString()); 
      arrstation.add(item_array[i].get("arrprevstationcnt").toString()); 
      intarrtime.add(Integer.parseInt(arrtime.get(i))/60); 
     } 

     rd.close(); 
     conn.disconnect(); 


    }catch(Exception e){ 
     System.out.println(e.getMessage()); 
    } 

    } 

public void setBusLabel(ArrayList<String> busno, ArrayList<String> businfo, ArrayList<Integer> intarrtime, ArrayList<String> arrstation) { 
    no1.setText(busno.get(0)); no2.setText(busno.get(1)); no3.setText(busno.get(2)); no4.setText(busno.get(3)); no5.setText(busno.get(4)); no6.setText(busno.get(5)); no7.setText(busno.get(6)); no8.setText(busno.get(7)); 
    info1.setText(businfo.get(0)); info2.setText(businfo.get(1)); info3.setText(businfo.get(2)); info4.setText(businfo.get(3)); info5.setText(businfo.get(4)); info6.setText(businfo.get(5)); info7.setText(businfo.get(6)); info8.setText(businfo.get(7)); 
    /* 
    time1.setText(intarrtime[0].toString()+"분"); time2.setText(intarrtime[1].toString()+"분"); time3.setText(intarrtime[2].toString()+"분"); time4.setText(intarrtime[3].toString()+"분"); time5.setText(intarrtime[4].toString()+"분"); time6.setText(intarrtime[5].toString()+"분"); time7.setText(intarrtime[6].toString()+"분"); time8.setText(intarrtime[7].toString()+"분"); 
    station1.setText(arrstation[0]); station2.setText(arrstation[1]); station3.setText(arrstation[2]); station4.setText(arrstation[3]); station5.setText(arrstation[4]); station6.setText(arrstation[5]); station7.setText(arrstation[6]); station8.setText(arrstation[7] 
    */ 
} 

public ArrayList<String> getArrstation() { 
    return arrstation; 
} 

public void setArrstation1(ArrayList<String> arrstation) { 
    this.arrstation = arrstation; 
} 

public ArrayList<String> getBusno() { 
    return busno; 
} 

public void setBusno1(ArrayList<String> busno) { 
    this.busno = busno; 
} 

public ArrayList<String> getBusinfo() { 
    return businfo; 
} 

public void setBusinfo1(ArrayList<String> businfo) { 
    this.businfo = businfo; 
} 

public ArrayList<Integer> getIntarrtime() { 
    return intarrtime; 
} 

public void setIntarrtime(ArrayList<Integer> intarrtime) { 
    this.intarrtime = intarrtime; 
} 

} 

Answer 1

、あなただけ使用することができINSTANCEOF：

Object obj = items.get("item"); 

if(obj instanceOf JSONArray) 
{ 

    //treat as JSONArray 
} 
else if(obj instanceOf JSONObject) 
{ 

    //treat as JSONObject 
}