Open includeexceptiondetailinfaults on the server (from servicebehaviorattribute or from & lt; servicedebug & gt; to configure behavior) to send exception information back

author ：jiankunking ​ ​​​

In the debug wcf When it comes to programming , Sometimes I will encounter the following errors ：

Log in and copy

      
      

       
       System.ServiceModel.FaultException:  Due to internal error , The server cannot process the request . More about this error , Please open... On the server  IncludeExceptionDetailInFaults ( from  ServiceBehaviorAttribute  Or from  <serviceDebug>  Configure behavior ) To send exception information back to the client , Or open each  Microsoft .NET Framework 3.0 SDK  Check the server trace log while tracking the document .
       
       
Server stack trace:
       
       
    stay  System.ServiceModel.Channels.ServiceChannel.ThrowIfFaultUnderstood(Message reply, MessageFault fault, String action, MessageVersion version, FaultConverter faultConverter)
       
       
    stay  System.ServiceModel.Channels.ServiceChannel.HandleReply(ProxyOperationRuntime operation, ProxyRpc& rpc)
       
       
    stay  System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
       
       
    stay  System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
       
       
    stay  System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)
       
       

       
       
Exception rethrown at [0]:
       
       
    stay  System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
       
       
    stay  System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
       
       
   // Some program prompts , Omit 
       
       
---------------------------
       
       
 determine   
       
       
---------------------------
      
      
      
      

       
       
1.
       
       
2.
       
       
3.
       
       
4.
       
       
5.
       
       
6.
       
       
7.
       
       
8.
       
       
9.
       
       
10.
       
       
11.
       
       
12.
       
       
13.
       
       
14.
       
       
15.
      
      

The specific reason is , stay wcf The service side

Log in and copy

      
      

       
       <
       
       serviceDebug 
       
       includeExceptionDetailInFaults=
       
       "false"
       
       />
      
      
      
      

       
       
1.
      
      

Set to false 了 , It is amended as follows true, You can see the specific error message on the client , The modified configuration file is as follows ：

Log in and copy

      
      

       
       <?xml 
       
       version="1.0" encoding="utf-8"?>
       
       

       
       <
       
       configuration
       
       >
       
       
  
       
       <
       
       system.web
       
       >
       
       
    
       
       <
       
       compilation 
       
       debug=
       
       "true" 
       
       targetFramework=
       
       "4.0" 
       
       />
       
       
  
       
       </
       
       system.web
       
       >
       
       
  
       
       <
       
       system.serviceModel
       
       >
       
       
    
       
       <
       
       behaviors
       
       >
       
       
      
       
       <
       
       serviceBehaviors
       
       >
       
       
        
       
       <
       
       behavior
       
       >
       
       
          
       
       <!--  To avoid leaking metadata information , Please set the following values to... Before deployment  false  And delete the metadata endpoint above  -->
       
       
          
       
       <
       
       serviceMetadata 
       
       httpGetEnabled=
       
       "true"
       
       />
       
       
          
       
       <!--  To receive fault exception details for debugging , Please set the following values to  true. Set to... Before deployment  false  To avoid the leakage of abnormal information  -->
       
       
          
       
       <
       
       serviceDebug 
       
       includeExceptionDetailInFaults=
       
       "true"
       
       />
       
       
        
       
       </
       
       behavior
       
       >
       
       
      
       
       </
       
       serviceBehaviors
       
       >
       
       
    
       
       </
       
       behaviors
       
       >
       
       
    
       
       <
       
       serviceHostingEnvironment 
       
       multipleSiteBindingsEnabled=
       
       "true" 
       
       />
       
       
  
       
       </
       
       system.serviceModel
       
       >
       
       
 
       
       <
       
       system.webServer
       
       >
       
       
    
       
       <
       
       modules 
       
       runAllManagedModulesForAllRequests=
       
       "true"
       
       />
       
       
  
       
       </
       
       system.webServer
       
       >
       
       

       
       </
       
       configuration
       
       >
      
      
      
      

       
       
1.
       
       
2.
       
       
3.
       
       
4.
       
       
5.
       
       
6.
       
       
7.
       
       
8.
       
       
9.
       
       
10.
       
       
11.
       
       
12.
       
       
13.
       
       
14.
       
       
15.
       
       
16.
       
       
17.
       
       
18.
       
       
19.
       
       
20.
       
       
21.
       
       
22.