问如何在MVC中处理大量Json数据？

EN

<system.web.extensions>
   <scripting>
       <webServices>
           <jsonSerialization maxJsonLength="50000000"/>
       </webServices>
   </scripting>
</system.web.extensions>

<add key="aspnet:MaxJsonDeserializerMembers" value="2147483647 " />

    var jsonResult = Json(listofParticipant);
    jsonResult.MaxJsonLength = int.MaxValue;
    jsonResult.JsonRequestBehavior = JsonRequestBehavior.AllowGet;
    return jsonResult;

  using (StreamWriter sw = new StreamWriter(@"D:\json.txt"))
            {
                using (JsonWriter writer = new JsonTextWriter(sw))
                {
                    JsonSerializer serializer = new JsonSerializer();
                    serializer.Serialize(writer, listofParticipant);
                }
            }

            var xserializer = new JsonSerializer();

            using (var sr = new StreamReader(@"D:\json.txt"))
            using (var jsonTextReader = new JsonTextReader(sr))
            {
                var xx = xserializer.Deserialize<List<PatricipantSearchViewModel>>(jsonTextReader);
                return Json(xx, "application/json", Encoding.Default, JsonRequestBehavior.AllowGet);

            }

protected override JsonResult Json(object data, string contentType, System.Text.Encoding contentEncoding, JsonRequestBehavior behavior)
{
    return new JsonResult()
    {
        Data = data,
        ContentType = contentType,
        ContentEncoding = contentEncoding,
        JsonRequestBehavior = behavior,
        MaxJsonLength = Int32.MaxValue
    };
}