HTTP POST

Java를 사용한 POST 방식 데이터 전송 및 응답 처리하기

 1 public static void main(String[] args) {
 2  try {
 3   //연결
 4   URL url = new URL("http://www.example.com/post.php");
 5   HttpURLConnection conn = (HttpURLConnection) url.openConnection();
 6   conn.setDoOutput(true);
 7   conn.setRequestMethod("POST");
 8   conn.setRequestProperty("Accept-Language",  "ko-kr,ko;q=0.8,en-us;q=0.5,en;q=0.3");
 9 
10   //데이터
11   String param = URLEncoder.encode("name", "UTF-8") + "=" + URLEncoder.encode("??", "UTF-8");
12   param += "&" + URLEncoder.encode("age", "UTF-8") + "=" + URLEncoder.encode("??", "UTF-8");
13 
14   //전송
15   OutputStreamWriter osw = new OutputStreamWriter(conn.getOutputStream());
16   osw.write(param);
17   osw.flush();
18 
19   //응답
20   BufferedReader br = null;
21   br = new BufferedReader(new InputStreamReader(conn.getInputStream(), "UTF-8"));
22   String line = null;
23   while ((line = br.readLine()) != null) {
24    System.out.println(line);
25   }
26 
27   //닫기
28   osw.close();
29   br.close();
30   } catch (MalformedURLException e) {
31    e.printStackTrace();
32   } catch (ProtocolException e) {
33    e.printStackTrace();
34   } catch (UnsupportedEncodingException e) {
35    e.printStackTrace();
36   } catch (IOException e) {
37    e.printStackTrace();
38   } 
39  }
40 }