使用mvc jsonresult返回json对象 报错 maxjsonlength超长

 

解决办法：

1.放弃用jsonresult对象 ，使用json字符串传输，前端通过js再转化为json对象  $.parseJson();

2.重写jsonresult

来源：http://www.xuebuyuan.com/429710.html

 

class ConfigurableJsonResult : JsonResult
     {
         public override void ExecuteResult(ControllerContext context)
         {
             if (context == null)
             {
                 throw new ArgumentNullException("context");
             }
             if (JsonRequestBehavior == JsonRequestBehavior.DenyGet &&
                 String.Equals(context.HttpContext.Request.HttpMethod, "GET", StringComparison.OrdinalIgnoreCase))
             {
                 throw new InvalidOperationException("This request has been blocked because sensitive information could be disclosed to third party web sites when this is used in a GET request. To allow GET requests, set JsonRequestBehavior to AllowGet.");
             }
 
             HttpResponseBase response = context.HttpContext.Response;
 
             if (!String.IsNullOrEmpty(ContentType))
             {
                 response.ContentType = ContentType;
             }
             else
             {
                 response.ContentType = "application/json";
             }
             if (ContentEncoding != null)
             {
                 response.ContentEncoding = ContentEncoding;
             }
             if (Data != null)
             {
                 JavaScriptSerializer serializer = new JavaScriptSerializer();
 
                 ScriptingJsonSerializationSection section = ConfigurationManager.GetSection("system.web.extensions/scripting/webServices/jsonSerialization") as ScriptingJsonSerializationSection;
            
                 if (section != null)
                 {
                     serializer.MaxJsonLength = section.MaxJsonLength;
                     serializer.RecursionLimit = section.RecursionLimit;
                 }
 
                 response.Write(serializer.Serialize(Data));
             }
         }
     }