[url] url 연결

public boolean isValidSession(String url) {

boolean result = false;

try {

URL servletUrl = new URL(url);

HttpURLConnection uc = (HttpURLConnection) servletUrl

.openConnection();

uc.setRequestMethod("GET");

uc.setDoOutput(true);

uc.setDoInput(true);

uc.setUseCaches(false);

uc.connect();

if (uc.getResponseCode() == HttpURLConnection.HTTP_OK)

result = true;

uc.disconnect();

} catch (Exception e) {

result = false;

}

return result;

}