public class GanttChartService extends HttpServlet {
@Override
protected void service(HttpServletRequest arg0, HttpServletResponse arg1) throws ServletException, IOException {
IntegrationDTO paramDto= new IntegrationDTO();
paramDto.parseRequest(arg0);
String type= paramDto.getValue("type");
String endpoint = paramDto.getValue("endpoint");
int viewYear = paramDto.getInt("viewYear");