public HttpResponseMessage ExportExcel(string excelname, string exceltitle, string exceldata, string filter = null) { List <Filter> filters = null; if (filter != "[]") { filters = JsonConvert.DeserializeObject <List <Filter> >(filter); } SM_CitizenServicesBLL bll = new SM_CitizenServicesBLL(); List <SM_CitizenServicesModel> list = bll.GetAllCitizenServicesListExcel(filters); //获取导出的Excel表 CommonFunctionBLL <SM_CitizenServicesModel> cfBll = new CommonFunctionBLL <SM_CitizenServicesModel>(exceldata); return(cfBll.saveExcel(list, excelname, exceltitle)); }