我想提出一个jQuery AJAX调用在aspx.cs页后端的WebMethod。我收到的.NET JSON序列化的错误。因此,我在寻找各种方法来解决任何错误或避免使用JSON(为的WebMethods只返回格式):
I am making a jQuery AJAX call to a back-end WebMethod in an aspx.cs page. I am getting an error in the .NET JSON serialization. As such, I am looking for ways to either fix the error or avoid using JSON (the only return format for WebMethods):
使用JSON JavaScriptSerializer序列化和反序列化过程中的错误。字符串的长度超过上maxJsonLength属性设置的值
相关联的堆栈跟踪是: 在System.Web.Script.Serialization.JavaScriptSerializer.Serialize(obj对象,StringBuilder的输出,SerializationFormat serializationFormat)\ r \ n将在System.Web.Script.Services.RestHandler.InvokeMethod(HttpContext的背景下,WebServiceMethodData methodData ,IDictionary'2 rawParams)\ r \ n将在System.Web.Script.Services.RestHandler.ExecuteWebServiceCall(HttpContext的背景下,WebServiceMethodData methodData)
The associated StackTrace is : at System.Web.Script.Serialization.JavaScriptSerializer.Serialize(Object obj, StringBuilder output, SerializationFormat serializationFormat)\r\n at System.Web.Script.Services.RestHandler.InvokeMethod(HttpContext context, WebServiceMethodData methodData, IDictionary'2 rawParams)\r\n at System.Web.Script.Services.RestHandler.ExecuteWebServiceCall(HttpContext context, WebServiceMethodData methodData)
后端code是如下(注:结果是,在现实中大概呈现为一个字符串控制的110K):
The backend code is as follows (note: result is, in actuality about 110k of a control rendered to a string):
[WebMethod] public static string GetContactListControl() { try { var result = "Hello World!" return result; } catch (Exception e){ Logging.LogException(e); return "Exception Thrown"; } }和我从来没有碰到抓块,这对我表明,这个问题是我的code之外。
And I am never hitting the catch block, which to me shows that this issue is outside of my code.
我发现涉及改变web.config中插入以下块的修复程序,但它不工作:
I found a fix involving changing the web.config by inserting the following block, but it is not working:
<system.web.extensions> <scripting> <webServices> <jsonSerialization maxJsonLength="123456"></jsonSerialization> </webServices> </scripting> </system.web.extensions>
Project是.NET 3.5。
Project is .NET 3.5.
感谢您的任何意见和建议!
Thank you for any ideas and suggestions!
推荐答案在maxJsonLength财产的配置必须设置在web.config中。为了让被IIS允许这种配置,下面&LT; sectionGroup&GT; 必须包含的&LT内部; configSections&GT; :
Configuration of the maxJsonLength property must be setup in the web.config. In order to allow this configuration to be permitted by IIS, the following <sectionGroup> must be included inside of <configSections>:
<sectionGroup name="system.web.extensions" type="System.Web.Configuration.SystemWebExtensionsSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"> <sectionGroup name="scripting" type="System.Web.Configuration.ScriptingSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"> <section name="scriptResourceHandler" type="System.Web.Configuration.ScriptingScriptResourceHandlerSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/> <sectionGroup name="webServices" type="System.Web.Configuration.ScriptingWebServicesSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"> <section name="jsonSerialization" type="System.Web.Configuration.ScriptingJsonSerializationSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="Everywhere"/> <section name="profileService" type="System.Web.Configuration.ScriptingProfileServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/> <section name="authenticationService" type="System.Web.Configuration.ScriptingAuthenticationServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/> <section name="roleService" type="System.Web.Configuration.ScriptingRoleServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/> </sectionGroup> </sectionGroup> </sectionGroup>更多推荐
的WebMethod
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