公司ofbiz 通用接口模板

public static String demo(HttpServletRequest request, HttpServletResponse response) {
    String userid = request.getParameter("userid");
    ReturnJsonInterface returnJson;
    try {
        if (StringUtil.isBlank(userid)) {
            throw new ParameterErrorException();
        }
//domain code
        returnJson = new ReturnJson(ReturnJsonConst.SUCCESS,"");
    } catch (ReturnJsonException e) {
        returnJson = e;
    } catch (Exception e) {
        e.printStackTrace();
        returnJson = new ServiceErrorException();
    }
    return JsonView.success(response, returnJson);
}