解决方法:
方案1.asp.net mvc默认的json序列化ValueProviderFactory使用的是javascriptserializer,可以在配置文件web.config中设置:
<add key="aspnet:MaxJsonDeserializerMembers" value="150000000" />
和
<system.web.extensions><scripting><webServices><jsonSerialization maxJsonLength="2147483644"/></webServices></scripting></system.web.extensions>
方案2:重写默认的ValueProviderFactory,继承ValueProviderFactory抽象类使用json.net替换javascriptserializer,并且在application_start时将默认的ValueProviderFactory移除,使用自定义的ValueProviderFactory
1 public sealed class JsonDotNetValueProviderFactory : ValueProviderFactory 2 { 3 public override IValueProvider GetValueProvider(ControllerContext controllerContext) 4 { 5 if (controllerContext == null) 6 throw new ArgumentNullException("controllerContext"); 7 8 if (!controllerContext.HttpContext.Request.ContentType.StartsWith("application/json", StringComparison.OrdinalIgnoreCase)) 9 return null;10 11 var reader = new StreamReader(controllerContext.HttpContext.Request.InputStream);12 var bodyText = reader.ReadToEnd();13 14 return String.IsNullOrEmpty(bodyText) ? null : new DictionaryValueProvider<object>(JsonConvert.DeserializeObject<ExpandoObject>(bodyText, new ExpandoObjectConverter()) , CultureInfo.CurrentCulture);15 }16 }
global.asax
1 protected void Application_Start() 2 { 3 log4net.Config. 4 AreaRegistration.RegisterAllAreas(); 5 GlobalConfiguration.Configure(WebApiConfig.Register); 6 FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters); 7 RouteConfig.RegisterRoutes(RouteTable.Routes); 8 BundleConfig.RegisterBundles(BundleTable.Bundles); 9 ValueProviderFactories.Factories.Remove(ValueProviderFactories.Factories.OfType<JsonValueProviderFactory>().FirstOrDefault());10 ValueProviderFactories.Factories.Add(new JsonDotNetValueProviderFactory());11 //AutofacBuilder<ModulesRepository>.RegisterPersistent();12 }
网上介绍最多的是第一种方案,但是我觉得json.net比默认的javascriptserializer性能要好所以采用第二种方案!
原标题:ASP.NET MVC(post数据)Json请求太大,无法反序列化(The JSON request was too large to be deserialized)
关键词:ASP.NET