问题描述
我正在努力找出问题所在,但我不能,而且我也无法在Google上找到合适的解决方案。
我在Visual Studio的“类库”项目中有一个WCF Web服务,其接口为IWebService
,实现为WebService
,配置为文件App.config
,它公开了两种方法{ {1}}和Instruction(string)
(服务接受和指令),将其保存在列表FIFO中,返回响应,然后我可以使用第二种方法检索列表的第一个元素。
Update()
IWebService.cs
[ServiceContract(Namespace = "SMS_Application")]
[XmlSerializerFormat]
public interface IWebService
{
[OperationContract(Action = "Instruction",Name = "Instruction",ReplyAction = "InstructionResponse")]
string[] Instruction(string Username,string Password,string Command);
[OperationContract(Action = "GetUpdate",Name = "GetUpdate")]
string GetUpdate(string Username,string Password);
}
App.config
如果我在Visual Studio的同一解决方案(因此有两个项目,一个解决方案)中创建了一个具有主机(使用<?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="Callback">
<endpoint address="" binding="basicHttpBinding" name="Callback"
contract="SLWebServiceServer.IWebService">
<identity>
<dns value="localhost" />
</identity>
</endpoint>
<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
<host>
<baseAddresses>
<add baseAddress="http://localhost:8733/SLWebServiceServer/" />
</baseAddresses>
</host>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior>
...
</behavior>
</serviceBehaviors>
</behaviors>
</system.serviceModel>
</configuration>
)的控制台应用程序,并且启动了该控制台应用程序,则所有工作均按预期进行。
问题是我有一个很大的应用程序,在多个解决方案中有多个DLL,我想要的是在一个DLL中添加对WebService的引用并启动自托管。但是,如果我添加对WebService的引用并启动服务,定义cahnge以及URL,但是如果我将WebService项目添加到当前解决方案中,则所有操作都将按预期进行。
我找不到问题,我认为这与ServiceHost
文件有关,但是我找不到原因。
这是我创建自托管主机的方式:
App.config
这是它与具有两个项目的解决方案一起创建的WSDL文件
Uri baseAddress = new Uri(URL);
string URL = "http://localhost:8733/SLWebServiceServer/";
// Create a ServiceHost instance.
ServiceHost _host = new ServiceHost(typeof(WebService),baseAddress);
try {
// Add a service endpoint.
var binding = new WSHttpBinding();
_host.AddServiceEndpoint(typeof(IWebService),binding,"Application");
var behavior = _host.Description.Behaviors.Find<ServiceBehaviorAttribute>();
behavior.InstanceContextMode = InstanceContextMode.Single;
// Enable metadata exchange.
ServiceMetadataBehavior smb = new ServiceMetadataBehavior {
HttpGetEnabled = true
};
_host.Description.Behaviors.Add(smb);
// Start the service.
_host.Open();
}
catch (CommunicationException ce) {
_host.Abort();
}
,只有一个项目,而WebService仅作为外部参考
This XML file does not appear to have any style information associated with it. The document tree is shown below.
<wsdl:definitions xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns:wsx="http://schemas.xmlsoap.org/ws/2004/09/mex" xmlns:i0="http://tempuri.org/" xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" xmlns:wsa10="http://www.w3.org/2005/08/addressing" xmlns:wsp="http://schemas.xmlsoap.org/ws/2004/09/policy" xmlns:wsap="http://schemas.xmlsoap.org/ws/2004/08/addressing/policy" xmlns:msc="http://schemas.microsoft.com/ws/2005/12/wsdl/contract" xmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/" xmlns:wsa="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:wsam="http://www.w3.org/2007/05/addressing/metadata" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:tns="SMS_Application" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:wsaw="http://www.w3.org/2006/05/addressing/wsdl" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" name="WCallback" targetNamespace="SMS_Application">
<wsdl:import namespace="http://tempuri.org/" location="http://192.168.8.101:8733/SLWebServiceServer/?wsdl=wsdl0"/>
<wsdl:types>
<xsd:schema targetNamespace="SMS_Application/Imports">
<xsd:import schemaLocation="http://192.168.8.101:8733/SLWebServiceServer/?xsd=xsd0" namespace="SMS_Application"/>
</xsd:schema>
</wsdl:types>
<wsdl:message name="IWebService_Instruction_InputMessage">
<wsdl:part name="parameters" element="tns:Instruction"/>
</wsdl:message>
<wsdl:message name="IWebService_Instruction_OutputMessage">
<wsdl:part name="parameters" element="tns:InstructionResponse"/>
</wsdl:message>
<wsdl:message name="IWebService_GetUpdate_InputMessage">
<wsdl:part name="parameters" element="tns:GetUpdate"/>
</wsdl:message>
<wsdl:message name="IWebService_GetUpdate_OutputMessage">
<wsdl:part name="parameters" element="tns:GetUpdateResponse"/>
</wsdl:message>
<wsdl:portType name="IWebService">
<wsdl:operation name="Instruction">
<wsdl:input wsaw:Action="Instruction" message="tns:IWebService_Instruction_InputMessage"/>
<wsdl:output wsaw:Action="InstructionResponse" message="tns:IWebService_Instruction_OutputMessage"/>
</wsdl:operation>
<wsdl:operation name="GetUpdate">
<wsdl:input wsaw:Action="GetUpdate" message="tns:IWebService_GetUpdate_InputMessage"/>
<wsdl:output wsaw:Action="SMS_Application/IWebService/GetUpdateResponse" message="tns:IWebService_GetUpdate_OutputMessage"/>
</wsdl:operation>
</wsdl:portType>
<wsdl:service name="Callback">
<wsdl:port name="Callback" binding="i0:Callback">
<soap:address location="http://192.168.8.101:8733/SLWebServiceServer/"/>
</wsdl:port>
</wsdl:service>
</wsdl:definitions>
如果需要更多信息,我可以添加它们。
解决方法
我看到您已经在配置文件中配置了端点相关信息,所以我们不需要使用代码在ServiceHost中配置端点相关信息,我们只需要创建一个servicehost实例并启动它即可:
ServiceHost selfHost = new ServiceHost(typeof(Service1));
selfHost.Open();
Console.WriteLine("Service Open");
Console.ReadLine();
这是我的文件目录:
我在ConsoleAPP1中引用了WcfserviceLibrary4。
最重要的一点是,我们需要将WcfserviceLibrary4中的app.config复制到ConsoleAPP1。
如果问题仍然存在,请随时告诉我。