[JaVa] http 통신 예제 코드

출처 : http://whitegom.tistory.com/26

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


public class httpGetXmlTest {

 public static void main(String[] args) throws Exception {
  // TODO Auto-generated method stub
  
  URL url = new URL("http://192.168.137.130:8080/exam/xml3/admin");

  // open connection
  HttpURLConnection conn = (HttpURLConnection) url.openConnection();
  conn.setDoInput(true);          // 입력스트림 사용
  conn.setDoOutput(true);         // 출력스트림 사용
  conn.setUseCaches(false);       // 캐시사용 안함
  conn.setReadTimeout(30000);     // 타임아웃 : 3초
  conn.setRequestMethod("GET");   // GET or POST ...
        
  StringBuffer sb =  new StringBuffer();

  BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream()));

  for (;;) {
   String line = br.readLine();
   if (line == null)
    break;
   sb.append(line + "\n");
  }

  br.close();
  conn.disconnect();
        
  String getXml = sb.toString();

  System.out.println(sb.toString());        
 }
}