jQuery 在 MVC 4 中增加 json 响应 maxJsonLength
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Increase json response maxJsonLength in MVC 4
提问by Nabeel
I am getting following error in razor view engine MVC4(.net 4.5) application when loading a large JSON response form server at
在 razor 视图引擎 MVC4(.net 4.5) 应用程序中加载大型 JSON 响应表单服务器时出现以下错误
“Error during serialization or deserialization using the JSON JavaScriptSerializer.The length of the string exceeds the value set on the maxJsonLength property at @Html.Raw(Json.Encode(jsondata)”
“使用 JSON JavaScriptSerializer 进行序列化或反序列化时出错。字符串的长度超过了 @Html.Raw(Json.Encode(jsondata)处的 maxJsonLength 属性设置的值”
I have tried by setting MaxJsonLength property in my web.config:
我已经尝试在我的 web.config 中设置 MaxJsonLength 属性：
configuration>
<system.web.extensions>
<scripting>
<webServices>
<jsonSerialization maxJsonLength="2147483644"/>
</webServices>
</scripting>
</system.web.extensions>
</configuration>
Tried following at server side while sending JSON response as well.
在发送 JSON 响应的同时尝试在服务器端跟随。
return new JsonResult()
{
Data = data,
ContentType = contentType,
ContentEncoding = contentEncoding,
JsonRequestBehavior = behavior,
MaxJsonLength = Int32.MaxValue
};
Also tried the solution listed hare: http://brianreiter.org/2011/01/03/custom-jsonresult-class-for-asp-net-mvc-to-avoid-maxjsonlength-exceeded-exception/. But nothing worked for me :(
还尝试了列出的解决方案：http: //brianreiter.org/2011/01/03/custom-jsonresult-class-for-asp-net-mvc-to-avoid-maxjsonlength-exceeded-exception/。但对我没有任何作用:(
Can some suggest me how to avoid this error or how to increase the Jason response max length?
有人可以建议我如何避免此错误或如何增加 Jason 响应的最大长度吗？
回答by Nabeel
Somehow I get rid of this error by using following code in view.
不知何故，我通过在视图中使用以下代码摆脱了这个错误。
@{
System.Web.Script.Serialization.JavaScriptSerializer serializer = new System.Web.Script.Serialization.JavaScriptSerializer();
serializer.MaxJsonLength = Int32.MaxValue;
}
<script type="text/javascript">
var entries = @Html.Raw(serializer.Serialize(Model.FeedEntries));
</script>
This was not working at server side at least for me.
至少对我来说，这在服务器端不起作用。
回答by Emperor 2052
My penny to the solutions. Did b) because a) gave errormessage 'System.Web.Mvc.JsonResult does not contain a definition for maxJsonLength ... ' in Mvc 4.5 AFAIK, this is the only workaround that works.
我的一分钱的解决方案。b) 因为 a) 在 Mvc 4.5 AFAIK 中给出了错误消息“System.Web.Mvc.JsonResult 不包含 maxJsonLength ... 的定义”，这是唯一有效的解决方法。
I put b) in my controller. Hopefully this will help someone.
我把 b) 放在我的控制器中。希望这会帮助某人。
Regards, SM
问候， SM
a)
一种）
var jsonResult = Json(list, JsonRequestBehavior.AllowGet);
jsonResult.maxJsonLength = int.MaxValue;
return jsonResult;
b)
b)
if (Request.IsAjaxRequest())
{
//Working solution
var serializer = new JavaScriptSerializer { MaxJsonLength = Int32.MaxValue, RecursionLimit = 100 };
return new ContentResult()
{
Content = serializer.Serialize(list),
ContentType = "application/json",
};
//Trial 2
//var jsonResult = Json(list, JsonRequestBehavior.AllowGet);
//jsonResult.maxJsonLength = int.MaxValue;
//return jsonResult;
//Trial 1
//return Json(list, JsonRequestBehavior.AllowGet);
}
回答by Ahamed Ishak
This worked to me
这对我有用
return new JsonResult()
{
Data=jsonData,
MaxJsonLength = 86753090,
JsonRequestBehavior=JsonRequestBehavior.AllowGet
};
