svcutil.exe或测试wcf服务JSON输出？

Question

this post is off the back of my last question (thought i'd start a new question).

i am trying to create and test a simple (simple to you not me lol) WCF web service that outputs JSON. I beleive (with help) the application is ok but i need to test it and ia not sure how.

I'll attach my code below but here is what is happening, if i run the application it loads http://localhost:52002/ and i get the welcome to ASP.NET page, if run the application while i am in my .svc it loads http://localhost:52002/MyTestService.svc and i get the page:

You have created a service.

To test this service, you will need to create a client and use it to call the service. You can do this using the svcutil.exe tool from the command line with the following syntax:

svcutil.exe http://localhost:52002/MyTestService.svc?wsdl

I have been told i can http://localhost:52002/MyTestService.svc/GetResults to see the JSON output (see code below) but all i get is:

The webpage cannot be found

Any suggestions would be great, i apologies now for being abit new to all this and please ask you to maybe spell things out abit more then you normally would lol

Here is my code and tanks very much

Person.cs

[DataContract]
public class Person
{
    [DataMember]
    public string FirstName { get; set; }

    [DataMember]
    public string LastName { get; set; }

    [DataMember]
    public int Age { get; set; }

    public Person(string firstName, string lastName, int age)
    {
        this.FirstName = firstName;
        this.LastName = lastName;
        this.Age = age;
    }
}

MyTestServices.svc.cs

[ServiceContract(Namespace = "")]
    [AspNetCompatibilityRequirements(RequirementsMode =  `AspNetCompatibilityRequirementsMode.Allowed)]`
    public class TestService
    {
    [OperationContract]
    [WebGet(ResponseFormat = WebMessageFormat.Json)]

    public List<Person> GetResults()
    {
        List<Person> results = new List<Person>();
        results.Add(new Person("Peyton", "Manning", 35));
        results.Add(new Person("Drew", "Brees", 31));
        results.Add(new Person("Tony", "Romo", 29));

        return results;
    }

MyTestService.svc

<%@ ServiceHost Language="C#"
    Service="TestService.TestService"
    Factory="System.ServiceModel.Activation.ServiceHostFactory" %>

Web.Config

<configuration>
  <connectionStrings>
    <add name="ApplicationServices"
         connectionString="data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|\aspnetdb.mdf;User Instance=true"
         providerName="System.Data.SqlClient" />
  </connectionStrings>

  <system.web>
    <compilation debug="true" targetFramework="4.0" />

    <authentication mode="Forms">
      <forms loginUrl="~/Account/Login.aspx" timeout="2880" />
    </authentication>

    <membership>
      <providers>
        <clear/>
        <add name="AspNetSqlMembershipProvider" type="System.Web.Security.SqlMembershipProvider" connectionStringName="ApplicationServices"
             enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="false"
             maxInvalidPasswordAttempts="5" minRequiredPasswordLength="6" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10"
             applicationName="/" />
      </providers>
    </membership>

    <profile>
      <providers>
        <clear/>
        <add name="AspNetSqlProfileProvider" type="System.Web.Profile.SqlProfileProvider" connectionStringName="ApplicationServices" applicationName="/"/>
      </providers>
    </profile>

    <roleManager enabled="false">
      <providers>
        <clear/>
        <add name="AspNetSqlRoleProvider" type="System.Web.Security.SqlRoleProvider" connectionStringName="ApplicationServices" applicationName="/" />
        <add name="AspNetWindowsTokenRoleProvider" type="System.Web.Security.WindowsTokenRoleProvider" applicationName="/" />
      </providers>
    </roleManager>

  </system.web>

  <system.webServer>
     <modules runAllManagedModulesForAllRequests="true"/>
  </system.webServer>
  <system.serviceModel>
    <bindings />
    <client />
    <behaviors>
      <serviceBehaviors>
        <behavior name="">
          <serviceMetadata httpGetEnabled="true" />
          <serviceDebug includeExceptionDetailInFaults="false" />
        </behavior>
      </serviceBehaviors>
    </behaviors>
    <serviceHostingEnvironment multipleSiteBindingsEnabled="true" />
  </system.serviceModel>
</configuration>

Answer 1

I always use fiddler to debug the request. With the new Web Api for WCF you can set the accept header for the client to application/JSON and the response will be formatted as JSON.

Answer 2

I do not see your interface, but you are missing some stuff if you want it to be rest.

//Add this to your method    
[WebGet(UriTemplate="/Results")]
public List<Person> GetResults()
{
    List<Person> results = new List<Person>();
    results.Add(new Person("Peyton", "Manning", 35));
    results.Add(new Person("Drew", "Brees", 31));
    results.Add(new Person("Tony", "Romo", 29));

    return results;
}

Now you should be able to call it using http://localhost:52002/MyTestService.svc/Results . Just change the uri tempalte to what you want it to be.

You may also need to change the factory to be the WebServiceHostFactory.

<%@ ServiceHost Service="TestService.MyTestService"
    Factory="System.ServiceModel.Activation.WebServiceHostFactory" %>

Answer 3

I am not a WCF expert, so I cannot tell you what is wrong with your current application, but I can give you instructions for setting up a very simple example using your code, which will return a result in Fiddler.

1. Create a new ASP.NET Empty Web Application
2. Add a code file with the following:

Normally I wouldn't put everything in one file, but for simplicity...

using System.Collections.Generic;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.ServiceModel.Web;

namespace WebApplication1
{
    [ServiceContract]
    public interface ITestService
    {
        [OperationContract]
        [WebGet(ResponseFormat = WebMessageFormat.Json)]
        List<Person> GetResults();
    }

    public class TestService : ITestService
    {
        public List<Person> GetResults()
        {
            List<Person> results = new List<Person>();
            results.Add(new Person("Peyton", "Manning", 35));
            results.Add(new Person("Drew", "Brees", 31));
            results.Add(new Person("Tony", "Romo", 29));

            return results;
        }
    }

    [DataContract]
    public class Person
    {
        [DataMember]
        public string FirstName { get; set; }

        [DataMember]
        public string LastName { get; set; }

        [DataMember]
        public int Age { get; set; }

        public Person(string firstName, string lastName, int age)
        {
            this.FirstName = firstName;
            this.LastName = lastName;
            this.Age = age;
        }
    }
}

Update the web.config file:

<configuration>

    <system.web>
        <compilation debug="true" targetFramework="4.0" />
    </system.web>

    <system.serviceModel>

        <serviceHostingEnvironment>
            <serviceActivations>
                <add relativeAddress="test.svc"
                     service="WebApplication1.TestService"
                     factory="System.ServiceModel.Activation.WebServiceHostFactory" />
            </serviceActivations>
        </serviceHostingEnvironment>

    </system.serviceModel>

</configuration>

You don't need a .svc file, so start the application, making note of the root url used by the ASP.NET Development Server. On the Request Builder tab of fiddler enter your url:

Click the Execute button and you should see your service results:

Hopefully you can use this to figure out what you need to update on your service to get it running. Good luck!