如何在 C# 中使用 json wcf 服务

Question

我有一个 json wcf。地址已给出。 wsdl中的代码如下：

<wsdl:binding name="BasicHttpBinding_iBOER" type="tns:iBOER">
 <soap:binding transport="http://schemas.xmlsoap.org/soap/http" /> 
 - <wsdl:operation name="PhoneCall">
 <soap:operation soapAction="http://tempuri.org/iBOER/PhoneCall" style="document" /> 
 - <wsdl:input>
 <soap:body use="literal" /> 
 </wsdl:input>
- <wsdl:output>
 <soap:body use="literal" /> 
 </wsdl:output>
 </wsdl:operation>

- <wsdl:service name="BOER">
- <wsdl:port name="BasicHttpBinding_iBOER" binding="tns:BasicHttpBinding_iBOER">
      <soap:address location="http://wsvc01/BOER/BOER.svc" /> 
  </wsdl:port>
  </wsdl:service>

如何在 C# 中使用它？ 没事吧？

class Test
{
   static void Main()
   {
       iBOERClient client = new iBOERClient();

      // Use the 'client' variable to call operations on the service.

      // Always close the client.
      client.Close();
   }
}

我需要把网址放在客户端吗？ 该服务有两个DataContract 和许多DataMember。我对此并不强。

谢谢。

Answer 1

您实际上并没有 JSON WCF 服务。您有一个服务，它可能有也可能没有可以接收/发送 JSON 数据的端点。您显示的 WSDL 列出了使用基于 SOAP 的绑定 (BasicHttpBinding) 的端点 (wsdl:port)。可以“交谈”JSON 的端点是用 WebHttpBinding 定义的，并且应用了一种特定的行为 (WebHttpBehavior) - 它们是 do not show up in the WSDL。

因此，您不能通过添加服务引用或 svcutil.exe 等工具生成的客户端使用它。如果您在客户端代码中具有相同的合同，您可以使用诸如ChannelFactory<T> 或WebChannelFactory<T> 之类的类来创建与服务通信的代理，或者您可以手工处理请求并使用通用的方法将其发送到服务- 专用 HTTP 客户端。

下面的示例代码显示了如何使用WebChannelFactory<T> 和“普通” HTTP 客户端 (WebClient) 使用 JSON 端点。

public class StackOverflow_14945653
{
    [DataContract]
    public class Person
    {
        [DataMember]
        public string Name { get; set; }
        [DataMember]
        public int Age { get; set; }
        [DataMember]
        public Address Address { get; set; }
    }
    [DataContract]
    public class Address
    {
        [DataMember]
        public string Street;
        [DataMember]
        public string City;
        [DataMember]
        public string Zip;
    }
    [ServiceContract]
    public interface ITest
    {
        [WebInvoke(RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json)]
        void RegisterPerson(Person p);
        [WebGet(RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json)]
        Person FindPerson(string name);
    }
    public class Service : ITest
    {
        private static List<Person> AllPeople = new List<Person>();

        public void RegisterPerson(Person p)
        {
            AllPeople.Add(p);
        }

        public Person FindPerson(string name)
        {
            return AllPeople.Where(p => p.Name == name).FirstOrDefault();
        }
    }
    public static void Test()
    {
        string baseAddress = "http://" + Environment.MachineName + ":8000/Service";
        WebServiceHost host = new WebServiceHost(typeof(Service), new Uri(baseAddress));
        host.Open();
        Console.WriteLine("Host opened");

        Console.WriteLine("Accessing via WebChannelFactory<T>");
        WebChannelFactory<ITest> factory = new WebChannelFactory<ITest>(new Uri(baseAddress));
        ITest proxy = factory.CreateChannel();
        proxy.RegisterPerson(new Person
        {
            Name = "John Doe",
            Age = 32,
            Address = new Address
            {
                City = "Springfield",
                Street = "123 Main St",
                Zip = "12345"
            }
        });
        Console.WriteLine(proxy.FindPerson("John Doe").Age);
        Console.WriteLine();

        Console.WriteLine("Accessing via \"normal\" HTTP client");
        string jsonInput = "{'Name':'Jane Roe','Age':30,'Address':{'Street':'1 Wall St','City':'Springfield','Zip':'12346'}}".Replace('\'', '\"');
        WebClient c = new WebClient();
        c.Headers[HttpRequestHeader.ContentType] = "application/json";
        c.UploadString(baseAddress + "/RegisterPerson", jsonInput);

        c = new WebClient();
        Console.WriteLine(c.DownloadString(baseAddress + "/FindPerson?name=Jane Roe"));
        Console.WriteLine();

        Console.Write("Press ENTER to close the host");
        Console.ReadLine();
        host.Close();
    }
}