wcf - C# 4.0 WCF REST JSON - HTTP GET 代码 400 错误请求

Question

当尝试通过遵循几个教程创建一个简单的服务以返回简单的 JSON 字符串时。我被困在两台不同的机器上，并收到 HTTP Statuscode 400 错误请求。 示例教程 使用 JSON 的 RESTful WCF 服务 pt.1 和 pt.2 - http://www.youtube.com/watch?v=5BbDxB_5CZ8

我也在 Google 上搜索过类似的问题，但没有成功。

问题是，当我尝试进行健全性检查以浏览 WCF 服务并执行该方法时，收到 400 错误请求。通过编译服务并浏览这个地址:http://localhost:49510/Service1.svc/GetPerson 就像教程一样。我已经尝试寻找解决方案大约三天了。如有任何帮助，我们将不胜感激。

这就是我所做的。

首先，我创建一个新项目，一个简单的 WCF 服务应用程序。我删除默认的 Service1.svc 并添加一个新的 WCF 服务，生成新的 Service1.svc 和 IService1.cs

这是接口(interface)的代码(IService1.cs)

namespace WcfService1
{
    // NOTE: You can use the "Rename" command on the "Refactor" menu to change the interface name "IService1" in both code and config file together.
    [ServiceContract]
    public interface IService1
    {
        [OperationContract]
        [WebInvoke(Method="GET", BodyStyle=WebMessageBodyStyle.Bare, ResponseFormat=WebMessageFormat.Json, RequestFormat=WebMessageFormat.Json, UriTemplate="GetPerson")]
        Person GetPerson();
    }

    [DataContract(Name="Person")]
    public class Person
    {
        [DataMember(Name="name")]
        public string Name { get; set; }
    }
}

这是Service1.svc的代码

namespace WcfService1
{
    // NOTE: You can use the "Rename" command on the "Refactor" menu to change the class name "Service1" in code, svc and config file together.
    public class Service1 : IService1
    {
        public Person GetPerson()
        {
            return new Person() { Name = "Tobbe" };
        }
    }
}

Web.config 未受影响，看起来像这样 web.config

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

  <system.web>
    <compilation debug="true" targetFramework="4.0" />
  </system.web>
  <system.serviceModel>
    <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>
    <serviceHostingEnvironment multipleSiteBindingsEnabled="true" />
  </system.serviceModel>
 <system.webServer>
    <modules runAllManagedModulesForAllRequests="true"/>
  </system.webServer>

</configuration>

Answer 1

对于 REST WCF，您必须在 web.config 中进行绑定(bind)和端点设置

通过以下方式替换整个 web.config，它将起作用

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

  <system.web>
    <compilation debug="true" targetFramework="4.0" />
  </system.web>
  <system.serviceModel>
    <protocolMapping>
      <add scheme="http" binding="webHttpBinding"/>
    </protocolMapping>
    <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>
      <endpointBehaviors>
        <behavior>
          <webHttp/>
        </behavior>
      </endpointBehaviors>
    </behaviors>
    <serviceHostingEnvironment multipleSiteBindingsEnabled="true" />
  </system.serviceModel>
 <system.webServer>
    <modules runAllManagedModulesForAllRequests="true"/>
  </system.webServer>  
 </configuration>

您还剩下以下两件事

使用 webHttpBinding(将默认 http 端口映射更改为 webHttpBinding)

<system.serviceModel>
    <protocolMapping>
        <add scheme="http" binding="webHttpBinding"/>
    </protocolMapping>
    <behaviors>

<system.serviceModel>

指定 webHttp 端点行为

<system.serviceModel>
    -----
    </protocolMapping>
    <behaviors>
        <endpointBehaviors>
            <behavior>
                <webHttp />
            </behavior >
        </endpointBehaviors>
    <behaviors>
    ------
<system.serviceModel>