API TEAM Project => Service에 API 가져오기

package com.example.service;

import java.net.URI;
import java.util.HashMap;
import java.util.Map;

import org.json.JSONArray;
import org.json.JSONObject;
import org.json.XML;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;



@RestController
@RequestMapping(value = "/api")
public class APiService {



    // API 갖고오기
    // XML api => 127.0.0.1:8080/BOOT1/api/exam5.json
    @GetMapping(value = "/apitest")
    public Map<String, Object> exam5GET() {

        Map<String, Object> map = new HashMap<>();
        try {
            // 다른 api를 호출해서 결과를 가져 온 다음
            // String url 자체 안에서 encoding을 해주기 때문에 decoding 서비스키를 쓰는게 베스트일것 같음.
            String url = "http://openapi.airport.co.kr/service/rest/FlightScheduleList/getDflightScheduleList?ServiceKey=PxUQv09spE8N85pwIwySieXRxlNADWhNtWpxFKk02XAc4KGH1PmJt8NnEil8TFkRIMTk2bBhANMVyNNtWr6SVw%3D%3D&schDeptCityCode=GMP&schArrvCityCode=PUS&pageNo=1";
            // springboot에서 제공하는 rest 템플릿
            RestTemplate restTemplate = new RestTemplate();

            URI uri = new URI(url);
            // 호출하는 URL, 반환 타입
            String response = restTemplate.getForObject(uri, String.class);
            if (response != null) {
                System.out.println("----------------------------------------");
                JSONObject jobj2 = new JSONObject(response.toString());
                JSONObject jobj3 = jobj2.getJSONObject("response").getJSONObject("body").getJSONObject("items");
                // response 안에 body안에 items 까지 데이터 뺌
                System.out.println(jobj3.toString());
                System.out.println("------------------Jobj3----------------------");

                JSONArray jarr = jobj3.getJSONArray("item");


                for(int i=0; i<jarr.length(); i++){

                    JSONObject obj = jarr.getJSONObject(i);

                    String ret1 = obj.getString("arrivalcity");
                    String ret2 = obj.getString("airlineKorean");
                    String ret3 = obj.getString("airlineEnglish");
                

                map.put("arrivalcity", ret1);
                map.put("airlineKorean", ret2);
                map.put("airlineEnglish", ret3);

                System.out.println(ret1.toString());

                }
            }

            // XML을 JSON Object로 반환하기

            // {"response":{"items":{"item":[{"name":"one","id":1},{"name":"two","id":2},{"name":"three","id":3}]}}}
            // {"response":{"headers" :["resultCode":00 ,"resultMsg":"NORMAL SERVICE."}],
            // {"items":[{"cityChn":"VNUKOVO"}, . . . ]}}

            // JSONObject jobc1 =
            // jobc.getJSONObject("response").getJSONObject("headers").getJSONObject("items");

            // [{"name":"one","id":1},
            // {"name":"two","id":2},
            // {"name":"three","id":3}]

            // for(int i=0; i<jarr.length(); i++){

            // JSONObject obj = jarr.getJSONObject(i);

            // String ret1 = obj.getString("cityChn");
            // String ret2 = obj.getString("cityCode");
            // String ret3 = obj.getString("cityEng");
            // String ret4 = obj.getString("cityJpn");
            // String ret5 = obj.getString("cityKor");

            // map.put("cityChn", ret1);
            // map.put("cityCode", ret2);
            // map.put("cityEng", ret3);
            // map.put("cityJpn", ret4);
            // map.put("cityKor", ret5);

            // System.out.println(ret5.toString());
            // }

            // System.out.println(jarr.toString());
        } catch (Exception e) {
            e.printStackTrace();
        }
        return map;
    }
}