HTTPS (SSL 사이트) 읽어오기 - readFromSSLUrl

public static String readFromSSLUrl(String url) {

String responseMessage = "";

InputStream is = null;

InputStreamReader isr = null;

BufferedReader br = null;

StringBuffer sb = new StringBuffer();

// 이 부분이 https부분입니다.***************************

System.setProperty("java.protocol.handler.pkgs", "com.sun.net.ssl.internal.www.protocol");

com.sun.net.ssl.internal.ssl.Provider provider = new com.sun.net.ssl.internal.ssl.Provider();

Security.addProvider(provider);

// *****************************************************

try {

URL httpsUrl = new URL(url);

URLConnection conn = httpsUrl.openConnection();

conn.setUseCaches(false);

conn.setConnectTimeout(40000);

conn.setDoOutput(true);// post 방식 설정

conn.connect();

responseMessage = conn.getHeaderField(0);

System.out.println(responseMessage);

// HTTP/1.1 200 OK 형식의 http 헤더 결과 코드가 출력됩니다.

is = conn.getInputStream();

isr = new InputStreamReader(is);

br = new BufferedReader(isr);

String line = null;

while ((line = br.readLine()) != null) {

sb.append(line);

}

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

// html 부분 출력

} catch (Exception e) {

e.printStackTrace();

}

return responseMessage;

}