发出JSON的WCF Web服务(Noob建议) [英] WCF Web Service that emits JSON (Noob advice)

问题描述

我对C#，XAML，Visual Studio等世界相当了解，我需要一点帮助来了解如何创建一个可以发出JSON的简单WCF Web应用程序，我也想知道如何进行测试该应用程序的输出.

I'm pretty knew to the world of C#, XAML, Visual Studio etc and i need abit of help to understand how i can create a simple WCF web application that emits JSON, i'd also like to know how to test the output of that application aswell.

我一直在寻找并跟踪几个不同的博客，但到目前为止还没有运气.我在此找到了另一条帖子，但这还是我的尝试失败大声笑

I've been hunting around and followed a couple of different blogs but had no luck so far. I found another post on here about this, but again my attempts fail lol

我认为我现在正处于一个非常困惑的境地，通过查看太多不同的示例，并需要这个出色网站的帮助:)

I think i am now at the point where i have just confused myself totally by looking at too many different examples and need some help from this great site :)

我将尽力为您提供尽可能多的代码，希望我已经做了一件可以挽救的帽子！

I'll try and provide you with as much code as i have already and hopefully i've done somethignt hat can be rescued!!

在此先感谢您的帮助！

Person.cs

Person.cs

namespace TestService
{
[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;
    }
}

}

MyTestService.svc.cs

MyTestService.svc.cs

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

            // Serialize the results as JSON
            DataContractJsonSerializer serializer = new DataContractJsonSerializer(results.GetType());
            MemoryStream memoryStream = new MemoryStream();
            serializer.WriteObject(memoryStream, results);

            // Return the results serialized as JSON
            string json = Encoding.Default.GetString(memoryStream.ToArray());
            return json;
        }
    }

MyTestService.svc

MyTestService.svc

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

web.config

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

推荐答案

您将不需要序列化要返回的对象，.NET将在后台为您处理所有这一切.

You will not need to serialize the object you wish to return, .NET will handle this all for your behind the scenes.

像这样修改GetResults方法:

[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;
}

希望这会有所帮助.

这篇关于发出JSON的WCF Web服务(Noob建议)的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！