从WCF客户端消费非WCF SOAP错误(定义了SOAP错误)

本文关键字：错误 SOAP WCF 定义 客户端 | 更新日期: 2023-09-27 18:16:58

我有一个非WCF服务器，我从WCF客户端调用，我需要访问已注册的soap故障，以防服务器抛出它(它包含我需要用户的反馈)。我使用了如何从WCF客户端访问SOAP 1.1错误细节的示例(没有错误契约)，但是考虑到我确实在wsdl中定义了错误契约，至少每个SOAP规范中都定义了错误契约，并且错误包含错误代码和错误字符串，这是一个痛苦。

<wsdl:types>
    <schema elementFormDefault="qualified" targetNamespace="http://www.cisco.com/BTS10200/i01" xmlns="http://www.w3.org/2001/XMLSchema">
        ...
        <complexType name="BtsSoapException">
            <sequence>
                <element name="error_code" type="xsd:int"/>
                <element name="error_string" nillable="true" type="xsd:string"/>
            </sequence>
        </complexType>
        <element name="fault" type="impl:BtsSoapException"/>
...
<wsdl:message name="BtsSoapException">
    <wsdl:part element="impl:fault" name="fault"/>
</wsdl:message>
...
<wsdl:portType name="Bts10200Operations">
    <wsdl:operation name="login">
        <wsdl:input message="impl:loginRequest" name="loginRequest"/>
        <wsdl:output message="impl:loginResponse" name="loginResponse"/>
        <wsdl:fault message="impl:BtsSoapException" name="BtsSoapException"/>
    </wsdl:operation>
...

服务导入正确地识别所有这些并生成正确的代码结构:

[System.Runtime.Serialization.DataContractAttribute(Name="BtsSoapException", Namespace="http://www.cisco.com/BTS10200/i01")]
[System.SerializableAttribute()]
public partial class BtsSoapException : object ...
....
[System.ServiceModel.ServiceContractAttribute(Namespace="http://www.cisco.com/BTS10200/i01", ConfigurationName="CiscoBTSService.Bts10200Operations")]
public interface Bts10200Operations {
    [System.ServiceModel.OperationContractAttribute(Action="", ReplyAction="*")]
    [System.ServiceModel.FaultContractAttribute(typeof(TestCiscoBTS.CiscoBTSService.BtsSoapException), Action="", Name="fault")]
    TestCiscoBTS.CiscoBTSService.loginResponse login(TestCiscoBTS.CiscoBTSService.loginRequest request);
...

当我调用无效帐户的login()时，我确实按照wsdl得到适当的响应:

<?xml version="1.0" encoding="utf-8"?>
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <soapenv:Body>
        <soapenv:Fault>
            <faultcode>soapenv:Server.generalException</faultcode>
            <faultstring></faultstring>
            <detail>
                <ns1:fault xmlns:ns1="http://www.cisco.com/BTS10200/i01">
                    <error_code>401</error_code>
                    <error_string xsi:type="xsd:string">java.lang.Exception: No user profile defined in the database for fakeuser</error_string>
                </ns1:fault>
                <ns2:exceptionName xmlns:ns2="http://xml.apache.org/axis/">com.sswitch.oam.soap.intf.BtsSoapException</ns2:exceptionName>
                <ns3:stackTrace xmlns:ns3="http://xml.apache.org/axis/">
    at com.sswitch.oam.soap.impl.UserAuth.validateUser(UserAuth.java:63)
    ...

FaultExcpetion确实着火了，但是它是空白的(Message = ")，我没有看到任何暴露BtsSoapException实例的属性。就像它根本没有被反序列化一样(尽管wcf知道它需要做的一切)。我做错了什么?我如何使WCF给我FaultException<BtsSoapException> ?

从WCF客户端消费非WCF SOAP错误(定义了SOAP错误)

如果您尝试过下面所示的代码，那么您需要捕获包含您正在寻找的信息的特定soap故障契约。这篇MSDN文章中的信息应该有所帮助。

var proxy = new WhatEverYourServiceProxyClassIsNamed();
try
{
    //your call logic here
    proxy.Close();
}
catch (FaultException<BtsSoapException> bse)
{
    //Get the info you're looking for in the strongly typed soap fault:
    proxy.Abort();
}
catch (FaultException fe)
{
    //Do something appropriate for a non-typed soap fault
    proxy.Abort();
}
finally
{
    if ((ICommunicationObject)proxy).State != CommunicationState.Closed)
        proxy.Abort();
}

我认为Sixto Saez是对的。您可以在FaultException中看到BtsSoapException实例。

定义:

<complexType name="BtsSoapException">
    <sequence>
        <element name="error_code" type="xsd:int"/>
        <element name="error_string" nillable="true" type="xsd:string"/>
    </sequence>
</complexType>

反应:

<detail>
    <ns1:fault xmlns:ns1="http://www.cisco.com/BTS10200/i01">
        <error_code>401</error_code>
        <error_string xsi:type="xsd:string">java.lang.Exception: No user profile defined in the database for fakeuser</error_string>

如果你做了

catch (FaultException<BtsSoapException> bse)
{
    console.write(bse.Detail.error_string)
}

你必须看到"java.lang. lang. "例外:当您调试时，在输出窗口中没有为fakeuser"在数据库中定义用户配置文件。

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