c# – 当操作返回元页面html时,如何更好地诊断WCF服务？

我有一个在IIS7.5(.NET 4)中托管的WCF服务应用程序(wsHttpBinding),我可以在浏览器中导航.svc文件,并且元数据页面成功显示,客户端可以从wsdl生成.

我添加了自己的@R_502_6268@服务行为来记录未处理的异常(下面的“ErrorHandling”),我正在使用MembershipProvider来获取服务凭据.这是我的完整system.serviceModel配置：

<system.serviceModel>
  <diagnostics wmiProviderEnabled="true">
    <messageLogging
      logEntireMessage="true"
      logMalformedMessages="true"
      logMessagesAtServiceLevel="true"
      logMessagesAtTransportLevel="true"
      maxMessagesToLog="3000"
      maxSizeOfMessagetoLog="-1" />
  </diagnostics>
  <extensions>
    <behaviorExtensions>
      <add name="ErrorHandling" type="MyCompany.MyProduct.Services.ErrorHandlerBehavior,MyCompany.MyProduct.Services" />
    </behaviorExtensions>
  </extensions>
  <services>
    <service name="MyCompany.MyProduct.Services.applicationservice" behaviorConfiguration="MyProductServiceBehavior">
      <endpoint bindingConfiguration="MyProductWsHttpBinding" binding="wsHttpBinding" contract="MyCompany.MyProduct.Services.Iapplicationservice" />
    </service>
    <service name="MyCompany.MyProduct.Services.AccountService" behaviorConfiguration="MyProductServiceBehavior">
      <endpoint bindingConfiguration="MyProductWsHttpBinding" binding="wsHttpBinding" contract="MyCompany.MyProduct.Services.IAccountService" />
    </service>
    <service name="MyCompany.MyProduct.Services.InvoiceService" behaviorConfiguration="MyProductServiceBehavior">
      <endpoint bindingConfiguration="MyProductWsHttpBinding" binding="wsHttpBinding" contract="MyCompany.MyProduct.Services.IInvoiceService" />
    </service>
    <service name="MyCompany.MyProduct.Services.ReportService" behaviorConfiguration="MyProductServiceBehavior">
      <endpoint bindingConfiguration="MyProductWsHttpBinding" binding="wsHttpBinding" contract="MyCompany.MyProduct.Services.IReportService" />
    </service>
    <service name="MyCompany.MyProduct.Services.PaymentService" behaviorConfiguration="MyProductServiceBehavior">
      <endpoint bindingConfiguration="MyProductWsHttpBinding" binding="wsHttpBinding" contract="MyCompany.MyProduct.Services.IPaymentService" />
    </service>
  </services>
  <bindings>
    <wsHttpBinding>
      <binding name="MyProductWsHttpBinding">
        <s@R_502_4395@ mode="Message">
          <message clientCredentialType="UserName" establishS@R_502_4395@Context="true" negotiateServiceCredential="true" />
        </s@R_502_4395@>
      </binding>
    </wsHttpBinding>
  </bindings>
  <behaviors>
    <serviceBehaviors>
      <behavior name="MyProductServiceBehavior">
        <serviceMetadata httpGetEnabled="true" />
        <serviceDebug includeExceptionDetailInFaults="true" />
        <serviceCredentials>
          <serviceCertificate findValue="MyProductServices" storeLocation="CurrentUser" storeName="My" x509FindType="FindBySubjectName" />
          <userNameAuthentication userNamePasswordValidationMode="MembershipProvider" membershipProviderName="AspNetsqlMembershipProvider" />
        </serviceCredentials>
        <ErrorHandling />
        <serviceS@R_502_4395@Audit auditLogLocation="Application" suppressAuditFailure="false" serviceAuthorizationAuditLevel="SuccessOrFailure" messageAuthenticationAuditLevel="SuccessOrFailure" />
      </behavior>
    </serviceBehaviors>
  </behaviors>
  <serviceHostingEnvironment multipleSiteBindingsEnabled="true" aspNetCompatibilityEnabled="true" />
</system.serviceModel>

您可以看到我还启用了安全审核,但事件日志中没有显示任何内容,除了显示消息日志已打开的消息.因此,当客户端调用该操作时,它似乎永远不会进入身份验证阶段.

我也启用了跟踪如下：

<system.diagnostics>
  <sources>
    <source name="System.ServiceModel"
            switchValue="All"
            propagateActivity="true" >
      <listeners>
        <add name="xml"/>
      </listeners>
    </source>
    <source name="System.ServiceModel.MessageLogging" switchValue="All">
      <listeners>
        <add name="xml"/>
      </listeners>
    </source>
    <source name="myUserTraceSource"
            switchValue="@R_842_4045@ion,ActivityTracing">
      <listeners>
        <add name="xml"/>
      </listeners>
    </source>
  </sources>
  <sharedListeners>
    <add name="xml"
         type="System.Diagnostics.XmlWriterTraceListener"
               initializeData="C:\Users\Public\Documents\services.svclog" />
  </sharedListeners>
</system.diagnostics>

当客户端调用主服务中的主操作时,它会收到一条带有以下消息的协议异常：

内容类型text / html; charset =响应消息的UTF-8与绑定的内容类型(application / soap xml; charset = utf-8)不匹配.如果使用@R_502_6268@编码器,请确保正确实现IsContentTypeSupported方法.响应的前1024个字节是：’#content {FONT-SIZE：0.7em; PADDING-BottOM：2em; MARGIN-LEFT：30px} BODY {MARGIN-TOP：0px; MARGIN-LEFT：0px;颜色：#000000; FONT-FAMILY：Verdana;背景颜色：白色} P {MARGIN-TOP：0px; MARGIN-BottOM：12px;颜色：#000000; FONT-FAMILY：Verdana} PRE {BORDER-RIGHT：#f0f0e0 1px solid; PADDING-RIGHT：5px; BORDER-TOP：#f0f0e0 1px solid; MARGIN-TOP：-5px; PADDING-LEFT：5px; FONT-SIZE：1.2em; PADDING-BottOM：5px; BORDER-LEFT：#f0f0e0 1px solid; PADDING-TOP：5px; BORDER-BottOM：#f0f0e0 1px solid; FONT-FAMILY：Courier New;背景颜色：#e5e5cc} .heading1 {MARGIN-TOP：0px; PADDING-LEFT：15px; FONT-WEIGHT：正常; FONT-SIZE：26px; MARGIN-BottOM：0px; PADDING-BottOM：3px; MARGIN-LEFT：-30px;宽度：100％;颜色：#ffffff; PADDING-TOP：10px; FONT-FAMILY：Tahoma; BACKGROUND-COLOR：#003366} .intro {MARGIN-LEFT：-15px} applicationservice Service’.

当您浏览.svc文件时,您看到的元数据页面的html是什么.因此,似乎服务正在返回该页面作为对操作的响应.

查看services.svclog讲述了同样的故事,实际上日志格式错误是xml,因为这个响应包含在其中而没有标记被转义.跟踪中没有任何有用的信息.

服务器上没有抛出异常,日志什么都没有.这一切都适用于我设置的另一台服务器上的IIS6,只是为了测试它,错误记录也在那里工作.

哪些工具和技术可以帮助我弄清楚根本问题是什么？

更新：这是来自服务器端跟踪的svclog,用于来自新生成的控制台应用客户端的单个请求(擦除以删除个人信息),注意它在最后被截断的方式：
http://pastebin.com/mksL0FFY

解决方法

检查IIS中的URL重写规则以获取该站点.如果其中一个重定向,则可能导致客户端接收元数据页面作为对操作的响应.我以前见过这种情况,可能会产生误导.