docs: public static SnsToken oauth2ComponentAccessToken(String appid,String code,String component_appid,String component_access_token ){
  		HttpUriRequest httpUriRequest = RequestBuilder.post()
  				.setUri(BASE_URI + "/sns/oauth2/component/access_token")
  				.addParameter("appid", appid)
  				.addParameter("code", code)
  				.addParameter("grant_type", "authorization_code")
  				.addParameter("component_appid", component_appid)
  				.addParameter("component_access_token", component_access_token)
  				.build();
  		return LocalHttpClient.executeJsonResult(httpUriRequest,SnsToken.class);
  	}