将WCF与Enterprise Library 5.0的验证应用程序块一起使用时,是否可以自定义发送回客户端的错误消息?
我已将ValidationBehaviour属性添加到我的服务合约中,并将FaultContract属性添加到操作中:
<ServiceContract()> _
<ValidationBehavior()> _
Public Interface IContract
<OperationContract(), FaultContract(GetType(ValidationFault))> _
Function GetCustomers(ByVal criteria As CustomersSearchCriteria) As List(Of Customer)
End Interface
然后,在CustomersSearchCriteria中,我添加了验证属性:
<Validators.StringLengthValidator(1, 3, ErrorMessage:="here's my error", Tag:="551")> _
Public Property Pin() As String
Get
Return _pin
End Get
Set(ByVal value As String)
_pin = value
End Set
End Property
但是当使用invalid参数调用时,返回的SOAP如下所示:
<s:Fault>
<faultcode>s:Client</faultcode>
<faultstring xml:lang="fi-FI">The creator of this fault did not specify a Reason.</faultstring>
<detail>
<ValidationFault xmlns="http://www.microsoft.com/practices/EnterpriseLibrary/2007/01/wcf/validation" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
<Details xmlns:a="http://schemas.datacontract.org/2004/07/Microsoft.Practices.EnterpriseLibrary.Validation.Integration.WCF">
<a:ValidationDetail>
<a:Key>Pin</a:Key>
<a:Message>The length of the value must fall within the range "1" (Inclusive) - "3" (Inclusive).</a:Message>
<a:Tag>criteria</a:Tag>
</a:ValidationDetail>
</Details>
</ValidationFault>
</detail>
</s:Fault>
服务按原样返回ValidationFault,但它没有使用我定义的错误消息和标记,而是使用了一些通用值。这是一个错误还是我做错了什么?
答案 0 :(得分:4)
我认为您需要使用MessageTemplate
属性而不是ErrorMessage
属性。尝试:
<Validators.StringLengthValidatorAttribute(1, 3, MessageTemplate:="here's my error", Tag:="551")> _