【发布时间】:2011-03-17 09:52:24
【问题描述】:
我们有一个 WCF 服务,它执行某些存储过程并将结果返回给 silverlight 客户端。一些存储过程最多返回 80K 行。
以下是 web.config 中服务的设置
<system.serviceModel>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true"/>
<behaviors>
<serviceBehaviors>
<behavior name="MyService.MyServiceBehavior">
<serviceMetadata httpGetEnabled="true"/>
<serviceDebug includeExceptionDetailInFaults="true"/>
<dataContractSerializer maxItemsInObjectGraph="2147483647"/>
</behavior>
</serviceBehaviors>
</behaviors>
<bindings>
<basicHttpBinding>
<binding name="BasicHttpBinding_MyService"
maxBufferSize="2147483647" maxReceivedMessageSize="2147483647"
receiveTimeout="00:40:00" openTimeout="00:40:00"
closeTimeout="00:40:00" sendTimeout="00:40:00">
<readerQuotas maxDepth="2147483647"
maxStringContentLength="2147483647" maxArrayLength="2147483647"
maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647"/>
<security mode="None"/>
</binding>
</basicHttpBinding>
<customBinding>
<binding name="MyService.MyService.customBinding0">
<binaryMessageEncoding/>
<httpTransport/>
</binding>
</customBinding>
</bindings>
<services>
<service behaviorConfiguration="MyService.MyServiceBehavior"
name="MyService.MyService">
<endpoint name="BasicHttpBinding_MyService"
address=""
binding="basicHttpBinding"
bindingConfiguration="BasicHttpBinding_MyService"
contract="MyService.IMyService"/>
</service>
</services>
</system.serviceModel>
这是给客户的
<system.serviceModel>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true"/>
<behaviors>
<serviceBehaviors>
<behavior name="MyService_Behavior">
<serviceDebug includeExceptionDetailInFaults="true"/>
<serviceMetadata httpGetEnabled="true"/>
</behavior>
</serviceBehaviors>
<endpointBehaviors>
<behavior name="r1">
<dataContractSerializer maxItemsInObjectGraph="2147483647"/>
</behavior>
</endpointBehaviors>
</behaviors>
<bindings>
<basicHttpBinding>
<binding name="BasicHttpBinding_MyService"
closeTimeout="00:03:00" openTimeout="00:03:00"
receiveTimeout="00:10:00" sendTimeout="00:03:00"
allowCookies="false" bypassProxyOnLocal="false"
hostNameComparisonMode="StrongWildcard"
maxBufferSize="2147483647" maxBufferPoolSize="2147483647"
maxReceivedMessageSize="2147483647"
messageEncoding="Text" textEncoding="utf-8"
transferMode="Buffered" useDefaultWebProxy="true">
<security mode="None"/>
</binding>
</basicHttpBinding>
</bindings>
<client>
<endpoint name="BasicHttpBinding_MyService"
address="http://localhost:8080/MyService/MyService.svc"
behaviorConfiguration="r1"
binding="basicHttpBinding"
bindingConfiguration="BasicHttpBinding_MyService"
contract="MyService.IMyService" />
</client>
</system.serviceModel>
只要记录数超过 20K,服务就会抛出 TimeOut 或 NotFound 错误。您认为为什么会发生这种情况,我该如何解决?
【问题讨论】:
-
您确定要从一次调用中返回 80K 行吗?也许重构和使用“分页”结果会更合适?
-
我知道这听起来很荒谬,但我的用户非常想将它显示在网格上(当然,我们让它们显示为分页)。不过,像 Telerik 这样的大多数第三方网格都支持它
-
您可以尝试在多次调用 DownloadPage(1) 中获取该数据 ... n 您将获得所有数据,但以更小的块形式
标签: c# silverlight wcf