maxItemsInObjectGraph 被忽略 [英] maxItemsInObjectGraph ignored

问题描述

我的 WCF 服务出现问题，该服务试图序列化过多数据.从跟踪中我得到一个错误，指出可以序列化或反序列化的最大元素数为65536"，请尝试增加 MaxItemsInObjectGraph 配额.

I have a problem with a WCF service, which tries to serialize too much data. From the trace I get an error which says that the maximum number of elements that can be serialized or unserialized is '65536', try to increment the MaxItemsInObjectGraph quota.

所以我去修改了这个值，但它只是被忽略了(错误是相同的，具有相同的数字).所有这些都是服务器端的.我暂时通过 wget 调用该服务.

So I went and modified this value, but it is just ignored (the error is the same, with the same number). All this is server-side. I am calling the service via wget for the moment.

我的网络配置是这样的:

My web config is like this:

<system.serviceModel>  
  <behaviors>
   <serviceBehaviors>
    <behavior name="AlgoMap.Web.MapService.MapServiceBehavior">
       <dataContractSerializer maxItemsInObjectGraph="131072" />
       <serviceMetadata httpGetEnabled="true" />
       <serviceDebug includeExceptionDetailInFaults="false" />
    </behavior>
   </serviceBehaviors>
  </behaviors>
  <bindings>
   <customBinding>
    <binding name="customBinding0" closeTimeout="00:02:00" openTimeout="00:02:00" receiveTimeout="00:02:00">
      <binaryMessageEncoding>
        <readerQuotas maxDepth="64" maxStringContentLength="16384"
                                maxArrayLength="16384" maxBytesPerRead="16384"
                                maxNameTableCharCount="16384" />
      </binaryMessageEncoding>
      <httpTransport />
    </binding>
   </customBinding>
  </bindings>
  <serviceHostingEnvironment aspNetCompatibilityEnabled="true" />
  <services>
   <service behaviorConfiguration="AlgoMap.Web.MapService.MapServiceBehavior"
    name="AlgoMap.Web.MapService.MapService">
    <endpoint address="" binding="customBinding" bindingConfiguration="customBinding0"
     contract="AlgoMap.Web.MapService.MapService" />
    <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
   </service>
  </services>
 </system.serviceModel>

<小时><小时><小时>

第 2 版，也不起作用:

---

---

---

Version 2, not working either:

 <system.serviceModel>  
  <behaviors>

    <endpointBehaviors>
      <behavior name="AlgoMap.Web.MapService.MapServiceEndpointBehavior">
         <dataContractSerializer maxItemsInObjectGraph="131072" />
      </behavior>
    </endpointBehaviors>

   <serviceBehaviors>
    <behavior name="AlgoMap.Web.MapService.MapServiceBehavior">
       <serviceMetadata httpGetEnabled="true" />
       <serviceDebug includeExceptionDetailInFaults="false" />
    </behavior>
   </serviceBehaviors>
  </behaviors>
  <bindings>
   <customBinding>
    <binding name="customBinding0" closeTimeout="00:02:00" openTimeout="00:02:00" receiveTimeout="00:02:00">
      <binaryMessageEncoding>
        <readerQuotas maxDepth="64" maxStringContentLength="16384"
                                maxArrayLength="16384" maxBytesPerRead="16384"
                                maxNameTableCharCount="16384" />
      </binaryMessageEncoding>
      <httpTransport />
    </binding>
   </customBinding>
  </bindings>

  <serviceHostingEnvironment aspNetCompatibilityEnabled="true" />
  <services>
   <service behaviorConfiguration="AlgoMap.Web.MapService.MapServiceBehavior"
    name="AlgoMap.Web.MapService.MapService">
     <endpoint 
        address="" binding="customBinding" bindingConfiguration="customBinding0"
        contract="AlgoMap.Web.MapService.MapService" 
        behaviorConfiguration="AlgoMap.Web.MapService.MapServiceEndpointBehavior" />
    <endpoint 
        address="mex" binding="mexHttpBinding" contract="IMetadataExchange"  
        behaviorConfiguration="AlgoMap.Web.MapService.MapServiceEndpointBehavior" />
   </service>
  </services>
 </system.serviceModel>

有人可以帮忙吗??谢谢！！

Can anyone help?? Thanks!!

推荐答案

web.config 中的任何设置都被愉快地忽略了，我还没有找到原因.但是我找到了一个解决方法，就是将 MaxItemsInObjectGraph 作为类装饰.这完美无缺:

Any setting put in the web.config were happily ignored, I haven't found out why. But I found a workaround, that is, to put the MaxItemsInObjectGraph as a class decoration. This works flawlessly:

// MyService.svc
// using...

namespace MyNamespace {
  [ServiceContract]
  [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
  [ServiceBehavior(MaxItemsInObjectGraph = 65536000)]
  public class MyWebService {

    [OperationContract]
    [WebGet(UriTemplate = "tree/{sessionId}", ResponseFormat = WebMessageFormat.Json)]
    public MyData GetTree(string sessionId) {
    ...
...

这篇关于maxItemsInObjectGraph 被忽略的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！