我使用此属性创建服务：
namespace WcfServiceLibrary1
{
[ServiceContract]
public interface IService1
{
[OperationContract]
string GetProductName(int productID);
[OperationContract]
int GetProductQty(int productID);
[OperationContract]
string GetCategoryName(int productID);
// TODO: Add your service operations here
}
}
我应该实现一个授权函数，你可以在这里看到：
namespace WcfServiceLibrary1
{
public class CustomValidator : UserNamePasswordValidator
{
public override void Validate(string userName, string password)
{
if (userName == "test" && password == "test")
return;
throw new SecurityTokenException(
"Unknown Username or Password");
}
}
}
在appsetting我定义了验证功能的Behavior和其他属性，如下所示：
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<appSettings>
<add key="aspnet:UseTaskFriendlySynchronizationContext" value="true" />
</appSettings>
<system.web>
<compilation debug="true" />
</system.web>
<!-- When deploying the service library project, the content of the config file must be added to the host's
app.config file. System.Configuration does not support config files for libraries. -->
<system.serviceModel>
<services>
<service name="WcfServiceLibrary1.Service1" behaviorConfiguration="WcfServic">
<host>
<baseAddresses>
<add baseAddress = "http://localhost:8733/WcfServiceLibrary1.Service1.svc" />
</baseAddresses>
</host>
<!-- Service Endpoints -->
<!-- Unless fully qualified, address is relative to base address supplied above -->
<endpoint address="" binding="wsHttpBinding" bindingConfiguration="SafeServiceConf" contract="WcfServiceLibrary1.IService1">
<!--
Upon deployment, the following identity element should be removed or replaced to reflect the
identity under which the deployed service runs. If removed, WCF will infer an appropriate identity
automatically.
-->
<identity>
<dns value="localhost"/>
</identity>
</endpoint>
<!-- Metadata Endpoints -->
<!-- The Metadata Exchange endpoint is used by the service to describe itself to clients. -->
<!-- This endpoint does not use a secure binding and should be secured or removed before deployment -->
<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="WcfServic">
<serviceMetadata httpGetEnabled="true"/>
<serviceDebug includeExceptionDetailInFaults="true" />
<serviceCredentials>
<userNameAuthentication
userNamePasswordValidationMode="Custom"
customUserNamePasswordValidatorType="WcfServiceLibrary1.CustomValidator.Validate,WcfServiceLibrary1"
/>
</serviceCredentials>
</behavior>
<behavior>
<!-- To avoid disclosing metadata information,
set the values below to false before deployment -->
<serviceMetadata httpGetEnabled="True" httpsGetEnabled="True"/>
<!-- To receive exception details in faults for debugging purposes,
set the value below to true. Set to false before deployment
to avoid disclosing exception information -->
<serviceDebug includeExceptionDetailInFaults="False" />
</behavior>
</serviceBehaviors>
</behaviors>
<bindings>
<wsHttpBinding>
<binding name="SafeServiceConf" maxReceivedMessageSize="65536">
<readerQuotas maxStringContentLength="65536" maxArrayLength="65536"
maxBytesPerRead="65536" />
<security mode="TransportWithMessageCredential">
<message clientCredentialType="UserName" />
</security>
</binding>
</wsHttpBinding>
</bindings>
</system.serviceModel>
</configuration>
在这部分中，我定义了要授权的自定义函数
<serviceCredentials>
<userNameAuthentication
userNamePasswordValidationMode="Custom"
customUserNamePasswordValidatorType="WcfServiceLibrary1.CustomValidator.Validate,WcfServiceLibrary1"
/>
</serviceCredentials>
但是当我运行该服务时，我收到了这个错误：
System.TypeLoadException: Could not load type 'WcfServiceLibrary1.CustomValidator.Validate' from assembly 'WcfServiceLibrary1'.
at System.RuntimeTypeHandle.GetTypeByName(String name, Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMarkHandle stackMark, IntPtr pPrivHostBinder, Boolean loadTypeFromPartialName, ObjectHandleOnStack type)
at System.RuntimeTypeHandle.GetTypeByName(String name, Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean loadTypeFromPartialName)
at System.RuntimeType.GetType(String typeName, Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMark& stackMark)
at System.Type.GetType(String typeName, Boolean throwOnError)
at System.ServiceModel.Configuration.UserNameServiceElement.ApplyConfiguration(UserNamePasswordServiceCredential userName)
at System.ServiceModel.Configuration.ServiceCredentialsElement.ApplyConfiguration(ServiceCredentials behavior)
at System.ServiceModel.Configuration.ServiceCredentialsElement.CreateBehavior()
at System.ServiceModel.Description.ConfigLoader.LoadBehaviors[T](ServiceModelExtensionCollectionElement`1 behaviorElement, KeyedByTypeCollection`1 behaviors, Boolean commonBehaviors)
at System.ServiceModel.Description.ConfigLoader.LoadServiceDescription(ServiceHostBase host, ServiceDescription description, ServiceElement serviceElement, Action`1 addBaseAddress, Boolean skipHost)
at System.ServiceModel.ServiceHostBase.LoadConfigurationSectionInternal(ConfigLoader configLoader, ServiceDescription description, ServiceElement serviceSection)
at System.ServiceModel.ServiceHostBase.ApplyConfiguration()
at System.ServiceModel.ServiceHost.ApplyConfiguration()
at System.ServiceModel.ServiceHostBase.InitializeDescription(UriSchemeKeyedCollection baseAddresses)
at System.ServiceModel.ServiceHost.InitializeDescription(Type serviceType, UriSchemeKeyedCollection baseAddresses)
at System.ServiceModel.ServiceHost..ctor(Type serviceType, Uri[] baseAddresses)
at Microsoft.Tools.SvcHost.ServiceHostHelper.CreateServiceHost(Type type, ServiceKind kind)
at Microsoft.Tools.SvcHost.ServiceHostHelper.OpenService(ServiceInfo info)
答案 0 :(得分：0)
配置中的这一行看起来不正确。 customUserNamePasswordValidatorType="WcfServiceLibrary1.CustomValidator.Validate,WcfServiceLibrary1"
WcfServiceLibrary1.CustomValidator.Validate是一个方法，但它期望一个类型，因此它试图实例化Validate。尝试用
customUserNamePasswordValidatorType="WcfServiceLibrary1.CustomValidator,WcfServiceLibrary1"