IOS (Swift) HTTP 통신하기2

HTTP 통신하기2

- IOS 보안 정책으로 HTTP 통신을 하기 위한 설정 진행 : http://ghj1001020.tistory.com/762

ViewController.swift)

import UIKit
 
class ViewController: UIViewController {
    
    @IBOutlet weak var txtResponse: UITextView!
    
    let strUrl : String = "http://swopenAPI.seoul.go.kr/api/subway/sample/"
    
    
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
    }
 
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
 
 
    @IBAction func onHttpRequest(_ sender: Any) {
        let api = strUrl + "/json/realtimePosition/1/5/1호선"
        //URL에 한글이 있기 때문에 인코딩 해준다
        let encoding = api.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed)
        //URL생성
        let url = URL(string: encoding!)
        
        if let _url = url {
            var request = URLRequest(url: _url)
            request.httpMethod = "get" //get : Get 방식, post : Post 방식
            
            //header 설정
//            request.setValue("", forHTTPHeaderField: "")
            //post body 설정
//            var requestBody : String = ""
//            request.httpBody = requestBody.data(using: .utf8)
            
            let session = URLSession.shared
            let task = session.dataTask(with: request, completionHandler: { (data: Data?, response: URLResponse?, error: Error?) in
                //error 일경우 종료
                guard error == nil && data != nil else {
                    if let err = error {
                        print(err.localizedDescription)
                    }
                    return
                }
                
                //data 가져오기
                if let _data = data {
                    if let strData = NSString(data: _data, encoding: String.Encoding.utf8.rawValue) {
                        let str = String(strData)
                        print(str)
                        //메인쓰레드에서 출력하기 위해
                        DispatchQueue.main.async {
                            self.txtResponse.text = str
                        }
                    }
                }else{
                    print("data nil")
                }
            })
            task.resume()
        }
    }
}
 
 

결과

- 버튼 클릭시 지하철 운행