从Excel调用WCF服务会在收到的邮件大小上产生错误 | 从Excel调用WCF服务会在收到的邮件大小上产生错误

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问题描述

我正在使用绰号字符串从excel VBA代码调用WCF服务.但是，由于我的服务返回大量数据作为响应，因此excel会给出错误消息

I am calling my WCF service from excel VBA code using moniker string. However, as my service returns large data as response, excel gives error message

超出了传入消息的最大消息大小配额(65534).要增加配额，请在适当的绑定元素上使用MaxReceivedMessageSize属性"

"Maximum message size quota for incoming messages (65534) has been exceeded. To increase the quota used the MaxReceivedMessageSize property on the appropriate binding element"

这是绰号字符串:

addrToService = "service4:mexAddress=""net.tcp://localhost/MyApp/API/Excel/ExcelAPIService.svc/mexTCP"", "
addrToService = addrToService + "address=""net.tcp://localhost/PruCapWebCMHost/API/Excel/ExcelAPIService.svc"", "
addrToService = addrToService + "contract=""IExcelAPIService"", contractNamespace=""http://Prucap/Services"", "
addrToService = addrToService + "binding=""NetTcpBinding_IExcelAPIService"", bindingNamespace=""http://MyApp/Services"""

要解决此问题，我在WCF服务的web.config文件中增加了大小，如下所示:

To resolve this, I increased the size in my WCF service's web.config file as shown below:

<netTcpBinding>
    <binding name="NetTcpBinding_IPublicService" maxBufferPoolSize="8388608"  maxBufferSize="8388608" maxReceivedMessageSize="8388608" portSharingEnabled="true">
    </binding>
</netTcpBinding>

<basicHttpBinding>
    <binding name="BasicHttpBidning_IPublicService" closeTimeout="00:05:00" openTimeout="00:05:00" sendTimeout="00:05:00" receiveTimeout="00:05:00" maxReceivedMessageSize="8388608" />
    <binding name="BasicHttpBidning_ISecureService" closeTimeout="00:05:00" openTimeout="00:05:00" sendTimeout="00:05:00" receiveTimeout="00:05:00" maxReceivedMessageSize="8388608" />
</basicHttpBinding>

....

  <service name="ExcelAPIService" behaviorConfiguration="PublicServiceTypeBehaviors">
    <endpoint address="" bindingNamespace="http://MyApp/Services" binding="netTcpBinding" bindingConfiguration="NetTcpBinding_IPublicService" contract="API.Service.ExcelAPI.IExcelAPIService" name="NetTcpBinding_IExcelAPIService" />
    <endpoint address="" bindingNamespace="http://MyApp/Services" binding="basicHttpBinding" bindingConfiguration="BasicHttpBidning_IPublicService" contract="API.Service.ExcelAPI.IExcelAPIService" name="BasicHttpBidning_IExcelAPIService" />
    <endpoint address="mex" bindingNamespace="http://MyApp/Services" binding="mexHttpBinding" contract="IMetadataExchange" />
    <endpoint address="mexTCP" bindingNamespace="http://MyApp/Services" binding="mexTcpBinding" bindingConfiguration="" contract="IMetadataExchange" />
  </service>

根据有关此主题的各种论坛，以上解决方案应该有效.但这在从excel调用时对我而言不起作用.我需要从excel方面进行任何操作来设置maxReceivedMessageSize吗?如果是，那我该如何使用VBA代码来做到这一点?

According to various forums on this topic, the above solution should work. But this does not work in my case when called from excel. Is there anything I need to do from excel side to set the maxReceivedMessageSize? If yes then how can I do this using VBA code?

其他信息:

我使用Office 2010(带有VBA)，Windows 7 Prof，64位OS

I use Office 2010 (with VBA), Windows 7 Prof, 64bit OS

推荐答案

您应该设置maxReceivedMessageSize ="2147483647"以增加消息的大小.

You should set maxReceivedMessageSize="2147483647" to increase message size.

尝试增加消息大小，例如:

Try increasing message size like:

 <binding maxBufferSize="2147483647"
             maxBufferPoolSize="2147483647"
             maxReceivedMessageSize="2147483647">
        <readerQuotas maxDepth="2147483647"
                      maxStringContentLength="2147483647"
                      maxArrayLength="2147483647"
                      maxBytesPerRead="2147483647"
                      maxNameTableCharCount="2147483647" />

   </binding>

-或

<basicHttpBinding>
      <binding name="BasicHttpBinding_IManagementService" closeTimeout="00:01:00"
        openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
        allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"
        maxBufferSize="2147483647" maxBufferPoolSize="524288" maxReceivedMessageSize="2147483647"
        messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered"
        useDefaultWebProxy="true">
        <readerQuotas maxDepth="128" maxStringContentLength="2147483647"
          maxArrayLength="16384" maxBytesPerRead="4096" maxNameTableCharCount="16384" />
        <security mode="None">
          <transport clientCredentialType="None" proxyCredentialType="None"
            realm="" />
          <message clientCredentialType="UserName" algorithmSuite="Default" />
        </security>
      </binding>
    </basicHttpBinding>

请参考

Wcf-The

更新

您还可以通过编程方式更改端点/服务行为.

You also can change endpoint/service behavior programatically.

引用链接:

如何:指定服务绑定在代码中

如何:以编程方式配置WCF端点

Update2:

对不起，尼尔，以前我完全忽略了您在excel中执行的操作.

Sorry Anil, Previously I totally overlook you are doing this in excel.

您的方案使用VB6中的WCF服务的最简单方法是为服务客户端创建.Net ComObject包装器.然后在VB6中，您要做的只是创建对象并在该对象上调用一些方法.所有WCF工作都在.Net com对象中进行.

The easiest way for your scenario to use WCF service from VB6 is to create a .Net ComObject wrapper for the service client. Then in VB6 all your are doing is a create object and calling some methods on the object. All the WCF work takes place in the .Net com object.

按照本链接 .将.NET程序集注册为类型库，然后将其从VB6应用程序链接: 链接 .

Simply create the WCF client to the service in a separate project as described in this link. Register the .NET assembly as a type library which you would then link from the VB6 app : link.

来源:

在VB6中使用WCF

将WCF服务与COM +集成

与VB6中的WCF Windows服务进行通信吗?

希望它会有所帮助.:)

Hope it helps. :)

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