我遇到了WCF服务的问题,该服务尝试序列化太多数据。从跟踪中我得到一个错误,该错误表示可以序列化或反序列化的元素的最大数量是'65536',尝试增加MaxItemsInObjectGraph配额。
所以我去修改了这个值,但它被忽略了(错误是相同的,具有相同的数字)。这一切都是服务器端的。我暂时通过wget调用该服务。
我的网络配置是这样的:
<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>
版本2,无法正常工作:
<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>
任何人都可以帮忙吗? 谢谢!
答案 0 :(得分:10)
web.config中的任何设置都被高兴地忽略了,我还没找到原因。但我找到了一种解决方法,即将MaxItemsInObjectGraph作为类装饰。这完美无缺:
// 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) {
...
...
答案 1 :(得分:3)
我也碰到了这个,在我的实例中,我忘记将此设置放在我的客户端app.config文件中。
答案 2 :(得分:1)
可能它还小吗?你试图提供像655360000这样的更大价值吗?请注意,您应该更改客户端和服务器配置文件中的值。我的猜测是你只改变了一部分;)
答案 3 :(得分:1)
通过Google中的小搜索,您似乎将设置添加到了错误的位置。
您需要在behavior
部分(而不是endPointBehaviors
)中创建新的serviceBehaviors
。
答案 4 :(得分:1)
我有同样的问题。在类级别使用服务行为属性工作正常,这是有道理的。我更喜欢配置级别更改。我已在客户端(web.config)和服务级别(app.config)添加了配置条目。它能为您提供帮助吗?