asp.net-mvc - Is it possible to use OutputCache on mvc JsonResult controller methods?

Question

I am trying to do this, and it leads to result with contentlen 0

It looks like:

[OutputCache(Duration = 36000)]
public JsonResult GetFileClasses() 
{
   return this.Json(TopicConfig.FileExtensionsSettings.List)
}

Any ideas?

Answer 1

在OutputCacheAttribute您还必须指定 ,VaryByParam参数。否则你会在结果处理中得到这个异常System.Web.HttpException: The directive or the configuration settings profile must specify the 'varyByParam' attribute. 你可以尝试添加这个参数，看看它是否有效。