在WPF應用程序內託管WCF Web服務

Question

我正在開發WPF應用程序。作爲應用程序的一部分，我需要通過另一個iOS應用程序接收一些圖像。所以我寫了WCF REST服務和iOS，我只能在將服務定義爲IIS的一部分時才能將圖像發送到Web服務。
我需要發生的事情是：當WPF應用程序啓動時，Web服務也將啓動，並公開iOS設備的端口號以發送圖像並在啓動時「喚醒」WPF應用程序。 有什麼想法？

Answer 1

是的，我做到了。事實上，正如Tim提到的，那正是我自己託管的服務。 你可以看看下面的視頻（還有很多其他的，請看鏈接）。 http://channel9.msdn.com/shows/Endpoint/endpointtv-Screencast-Building-RESTful-Services-with-WCF/

這裏有我的WCF項目完整的文件（如電影提），我希望這將讓你開始.. 只是注意，同樣重要的是在您的電腦打開特定的端口啓用傳入的HTTP通信。看看WCF ServiceHost access rights。

Eval.cs

[DataContract] 
public class Eval 
{ 
    public string id; 

    [DataMember] 
    public string Submitter; 
    [DataMember] 
    public DateTime Timesent; 
    [DataMember] 
    public string Comments; 
} 

IEvalService.cs

[ServiceContract] 
public interface IEvalService 
{ 
    [WebInvoke(Method="POST", UriTemplate = "evals")] 
    [OperationContract] 
    void SubmitEval(Eval i_Eval); 

    [WebGet(UriTemplate = "evals")] 
    [OperationContract] 
    List<Eval> GetEvals(); 

    [WebGet(UriTemplate="eval/{i_Id}")] 
    [OperationContract] 
    Eval GetEval(string i_Id); 

    [WebGet(UriTemplate = "evals/{i_Submitter}")] 
    [OperationContract] 
    List<Eval> GetEvalsBySubmitters(string i_Submitter); 

    [WebInvoke(Method = "DELETE", UriTemplate = "eval/{i_Id}")] 
    [OperationContract] 
    void RemoveEval(string i_Id); 

    [WebGet(UriTemplate = "GetLastPhoto", BodyStyle = WebMessageBodyStyle.Bare)] 
    Stream GetLastPhoto(); 

    [OperationContract] // this web address is for receiving the image for the iOS app. 
    [WebInvoke(Method = "POST", BodyStyle = WebMessageBodyStyle.Bare, UriTemplate = "TestPost")] 
    string TestPost(Stream stream); 
} 

EvalService.cs

[ServiceBehavior(InstanceContextMode=InstanceContextMode.Single)] 
public class EvalService : IEvalService 
{ 
    private List<Eval> m_Evals = new List<Eval>(); 
    private int evalCount = 0; 
    private string k_FilePath = "C:\\ImageUpload\\"; 

    public static event Action<LogicImage> ImageLoaded; 

    public void SubmitEval(Eval i_Eval) 
    { 
     i_Eval.id = (++evalCount).ToString(); 
     m_Evals.Add(i_Eval); 
    } 

    public List<Eval> GetEvals() 
    { 
     return m_Evals; 
    } 

    public Eval GetEval(string i_Id) 
    { 
     return m_Evals.First(e => e.id.Equals(i_Id)); 
    } 

    public List<Eval> GetEvalsBySubmitters(string i_Submitter) 
    { 
     if (i_Submitter == null && i_Submitter.Equals("")) 
     { 
      return null; 
     } 

     else 
     { 
      return m_Evals.Where(e => e.Submitter == i_Submitter).ToList(); 
     } 
    } 

    public void RemoveEval(string i_ID) 
    { 
     throw new NotImplementedException(); 
    } 

    public Stream GetLastPhoto() 
    { 
     Image image = Image.FromFile("C:\\ImageUpload\\014.png"); 
     MemoryStream ms = new MemoryStream(imageToByteArray(image)); 
     return ms; 
    } 

    public string TestPost(Stream stream) 
    { 
     HttpMultipartParser parser = new HttpMultipartParser(stream, "image"); 

     if (parser.Success) 
     { 
      if (parser.Success) 
      { 
       // deal with exceptions.. 
       // 
       File.WriteAllBytes(k_FilePath + parser.Filename, parser.FileContents); 
       if (ImageLoaded != null) 
       { 
        ImageLoaded.Invoke(new LogicImage(){FileName = parser.Filename, Location = k_FilePath}); 
       } 
      } 
     } 

     return "test"; 
    } 

    public static byte[] imageToByteArray(System.Drawing.Image imageIn) 
    { 
     MemoryStream ms = new MemoryStream(); 
     imageIn.Save(ms, System.Drawing.Imaging.ImageFormat.Png); 
     return ms.ToArray(); 
    } 
} 

public class LogicImage 
{ 
    public string FileName { get; set; } 
    public string Location { get; set; } 
} 

最後但並非最不重要的** **的App.config

<?xml version="1.0"?> 
<configuration> 

    <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="ImageRecevierWebService.EvalService"> 
     <host> 
      <baseAddresses> 
      <add baseAddress="http://localhost:8732/Design_Time_Addresses/ImageRecevierWebService/Service1/"/> 
      </baseAddresses> 
     </host> 
     <!-- Service Endpoints --> 
     <!-- Unless fully qualified, address is relative to base address supplied above --> 
     <endpoint address="" binding="wsHttpBinding" contract="ImageRecevierWebService.IEvalService"> 
      <!-- 
       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> 
      <!-- To avoid disclosing metadata information, 
      set the value below to false and remove the metadata endpoint above before deployment --> 
      <serviceMetadata httpGetEnabled="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> 
    </system.serviceModel> 

<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/></startup></configuration>