서울시 공공와이파이 정보 OPEN API 받아오기 - (파싱까지 완료)

https://fbtmdwhd33.tistory.com/264

[Java] 공공데이터 포털 오픈 API 사용 방법.

 

openAPI 정보 가져오기 

java

닫기 줄바꿈

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;

public class API_test {

‌public static void main(String[] args) throws IOException {
‌‌StringBuilder sb = new StringBuilder("http://openapi.seoul.go.kr:8088");
‌‌sb.append("/" + URLEncoder.encode("인증키 직접입력", "UTF-8"));
‌‌sb.append("/"  + URLEncoder.encode("json", "UTF-8"));
‌‌sb.append("/" +  URLEncoder.encode("TbPublicWifiInfo","UTF-8"));
‌‌sb.append("/" +  URLEncoder.encode("1","UTF-8"));
‌‌sb.append("/" + URLEncoder.encode("20","UTF-8"));
‌‌
‌‌URL url = new URL(sb.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()));
‌‌}
‌‌
‌‌StringBuilder s = new StringBuilder();
‌‌String line;
‌‌while((line = rd.readLine()) != null) {
‌‌‌s.append(line);
‌‌}
‌‌
‌‌rd.close();
‌‌conn.disconnect();
‌‌
‌‌System.out.println(s.toString());
‌}

}

콘솔에 결과 뜬다. Java 파일에서 호출하기 일단 성공