//記帳分類
public async Task <IActionResult> GetCategorys()
{
List <Categorys> list = new List <Categorys>();
if (HttpContext.Session.GetObjectFromJson <List <Categorys> >("categoryList") == null)
{
list = await _costService.GetCategorys();
HttpContext.Session.SetObjectAsJson("categoryList", list);
}
else
{
list = HttpContext.Session.GetObjectFromJson <List <Categorys> >("categoryList");
}
return(Ok(list));
}