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我有一個簡單的WCF服務起訴SOAP。我有一個非常簡單的操作「GetMultiplied」與非常少量的數據。客戶嘗試調用操作時遇到以下異常。任何想法都可能是什麼問題？400錯誤的請求異常：簡單的SOAP WCF服務與小數據
Inner Exception: {"The remote server returned an error: (400) Bad Request."}
完成wsdl和架構在最後列出。
注意：我已經在服務和客戶端配置中將配額值maxBufferSize等設置爲更高的值。
在服務
跟蹤，當我用在服務（基於How to turn on WCF tracing?）跟蹤，我正在以下 - 好像是沒有記錄的錯誤。
<Type>3</Type>
<SubType Name="Information">0</SubType>
<Level>8</Level>
<TimeCreated SystemTime="2012-09-13T17:05:17.6059181Z" />
<Source Name="System.ServiceModel" />
<Description>AppDomain unloading.</Description>
服務實現
public class CalculationService : ICalculationService
{
public virtual GetMultipliedResponse GetMultiplied(GetMultipliedRequest request)
{
MultipliedResult result = new MultipliedResult();
result.ResultNumber= ((request.InputNumber)*2);
GetMultipliedResponse response = new GetMultipliedResponse(result);
return response;
}
}
客戶
static void Main(string[] args)
{
CalculationServiceInterfaceClient proxy = new CalculationServiceInterfaceClient();
multipliedResult result = proxy.getMultiplied(2);
}
在自動生成的代碼的細節是：
public NewClient.CalcReference.multipliedResult getMultiplied(int inputNumber)
{
NewClient.CalcReference.getMultipliedRequest inValue = new NewClient.CalcReference.getMultipliedRequest();
inValue.inputNumber = inputNumber;
NewClient.CalcReference.getMultipliedResponse retVal = ((NewClient.CalcReference.CalculationServiceInterface)(this)).getMultiplied(inValue);
return retVal.restaurants;
}
WSDL
<definitions xmlns:import0="urn:lijo:demos:multiplyservice:messages:v1" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:import1="urn:lijo:demos:multiplyservice:data:v1" xmlns:tns="urn:lijo:demos:multiplyservice:calculation:v1" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/" name="CalculationService" targetNamespace="urn:lijo:demos:multiplyservice:calculation:v1" xmlns="http://schemas.xmlsoap.org/wsdl/">
<wsdl:documentation xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" />
<types>
<xsd:schema>
<xsd:import schemaLocation="C:\toolbox\LijosServiceApp\NewService\RestaurantMessages.xsd" namespace="urn:lijo:demos:multiplyservice:messages:v1" />
<xsd:import schemaLocation="C:\toolbox\LijosServiceApp\NewService\RestaurantData.xsd" namespace="urn:lijo:demos:multiplyservice:data:v1" />
</xsd:schema>
</types>
<message name="getMultipliedIn">
<wsdl:documentation xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" />
<part name="parameters" element="import0:getMultiplied" />
</message>
<message name="getMultipliedOut">
<wsdl:documentation xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" />
<part name="parameters" element="import0:getMultipliedResponse" />
</message>
<portType name="CalculationServiceInterface">
<wsdl:documentation xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" />
<operation name="getMultiplied">
<wsdl:documentation xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" />
<input message="tns:getMultipliedIn" />
<output message="tns:getMultipliedOut" />
</operation>
</portType>
<binding name="BasicHttpBinding_CalculationServiceInterface" type="tns:CalculationServiceInterface">
<soap:binding transport="http://schemas.xmlsoap.org/soap/http" />
<operation name="getMultiplied">
<soap:operation soapAction="urn:lijo:demos:multiplyservice:calculation:v1:getMultipliedIn" style="document" />
<input>
<soap:body use="literal" />
</input>
<output>
<soap:body use="literal" />
</output>
</operation>
</binding>
<service name="CalculationServicePort">
<port name="CalculationServicePort" binding="tns:BasicHttpBinding_CalculationServiceInterface">
<soap:address location="http://localhost/CalculationService" />
</port>
</service>
</definitions>
XSD
<?xml version="1.0" encoding="utf-8" ?>
<xs:schema id="RestaurantData" targetNamespace="urn:lijo:demos:multiplyservice:data:v1"
elementFormDefault="qualified" xmlns="urn:lijo:demos:multiplyservice:data:v1"
xmlns:mstns="urn:lijo:demos:multiplyservice:data:v1" xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:complexType name="multipliedResult">
<xs:sequence>
<xs:element name="resultNumber" type="xs:int" />
</xs:sequence>
</xs:complexType>
</xs:schema>
Cleint配置（自動生成的）
<system.serviceModel>
<bindings>
<basicHttpBinding>
<binding name="BasicHttpBinding_CalculationServiceInterface"
closeTimeout="00:01:00" openTimeout="00:01:00" receiveTimeout="00:10:00"
sendTimeout="00:01:00" allowCookies="false" bypassProxyOnLocal="false"
hostNameComparisonMode="StrongWildcard" maxBufferSize="65536"
maxBufferPoolSize="524288" maxReceivedMessageSize="65536"
messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered"
useDefaultWebProxy="true">
<readerQuotas maxDepth="524288" maxStringContentLength="524288" maxArrayLength="524288"
maxBytesPerRead="524288" maxNameTableCharCount="524288" />
<security mode="None">
<transport clientCredentialType="None" proxyCredentialType="None"
realm="" />
<message clientCredentialType="UserName" algorithmSuite="Default" />
</security>
</binding>
</basicHttpBinding>
</bindings>
<client>
<endpoint address="http://localhost/CalculationService" binding="basicHttpBinding"
bindingConfiguration="BasicHttpBinding_CalculationServiceInterface"
contract="CalcReference.CalculationServiceInterface" name="CalculationServicePort" />
</client>
</system.serviceModel>
您可以嘗試啓用跟蹤你的服務，看看是什麼原因導致了錯誤的請求。但是，如果您正在通過SOAP訪問您的服務，那麼您的客戶端代碼不應該出現異常。確保您已在客戶端更新了您的服務參考。 – Rajesh
@Rajesh Tracing只給了「AppDomain卸載」。這可能是一個問題嗎？請參閱更新後的問題 – Lijo