未找到 WCF REST 服务返回方法

Question

我已经开发了一个 WCF REST 服务并尝试使用 Asp.net 进行测试，尽管它可以与 wcf 测试客户端一起使用。该服务可能被非点网客户端使用。

我正在尝试在 asp.net 中创建一个测试页面，以通过 post 验证此服务。目前，此服务托管在我的 IIS 中

服役中：

[WebInvoke(Method = "POST", ResponseFormat = WebMessageFormat.Json,
           BodyStyle = WebMessageBodyStyle.Bare, UriTemplate = "/MySVC?stringP={stringP}")]
        Stream MySVC(string stringP); 

在 asp.net 中

$.ajax({
            type: "POST", //GET or POST or PUT or DELETE verb
            url: "http://localhost/MySvcHost/MySVC.svc?stringP",
            cache: false,
            data: '[{stringP:"samplestring"}]',
            dataType: "jsonp",
            processData: true,
            success: function (msg) {
            },
            error: function (err) {
            }
        })

当我运行测试应用程序时，它进入错误块 & Fiddler 显示错误“方法不允许”并显示为 GET。我还看到了附加参数（callback=）如果我将“jsonp”更改为“json”，它会抛出“传输错误”

我该怎么办？

更新： 服务 web.config

  <system.serviceModel>
    <services>
      <service
        name="Service.ParseService" behaviorConfiguration="ServiceBehaviour" >
        <endpoint address="" binding="webHttpBinding" behaviorConfiguration="web"
                  contract="Service.RestServiceInterface" name="BasicHttpBinding_RestServiceInterface2">
        </endpoint>
      </service>
    </services>   
    <behaviors>
      <serviceBehaviors>
        <behavior name="ServiceBehaviour">
          <!-- To avoid disclosing metadata information, set the values below to false before deployment -->
          <serviceMetadata httpGetEnabled="true" httpsGetEnabled="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 name="web">
          <webHttp defaultOutgoingResponseFormat="Json" />
        </behavior>
      </endpointBehaviors>
    </behaviors>
    <bindings>
      <webHttpBinding>
        <binding maxBufferPoolSize="2000000" maxReceivedMessageSize="2000000" useDefaultWebProxy="true" allowCookies="false" name="crossDomain" crossDomainScriptAccessEnabled="true" hostNameComparisonMode="StrongWildcard" receiveTimeout="00:10:00" sendTimeout="00:10:00" openTimeout="00:10:00" closeTimeout="00:10:00"
                   maxBufferSize="2147483647" transferMode="Buffered"
                   bypassProxyOnLocal="false">
              <readerQuotas maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxDepth="1024" maxStringContentLength="2147483647" maxNameTableCharCount="16384"></readerQuotas>

        </binding>
      </webHttpBinding>
    </bindings>
    <protocolMapping>
        <add binding="basicHttpsBinding" scheme="https" />
    </protocolMapping>    
    <serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" />
  </system.serviceModel>

客户端 web.config

<system.serviceModel>
    <behaviors>
      <endpointBehaviors>
        <behavior name="webEndpoint">
          <webHttp defaultBodyStyle="Wrapped" defaultOutgoingResponseFormat="Json"
              helpEnabled="true"/>
        </behavior>
      </endpointBehaviors>
    </behaviors>
    <bindings>
      <webHttpBinding>
        <binding  name="BasicHttpBinding_RestServiceInterface2" closeTimeout="00:01:00"
          openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
          allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"
          maxBufferSize="2147483647" maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647"
          transferMode="Buffered"
          useDefaultWebProxy="true">
          <readerQuotas maxDepth="1024" maxStringContentLength="2147483647" maxArrayLength="2147483647"
            maxBytesPerRead="2147483647" maxNameTableCharCount="16384" />
        </binding>
      </webHttpBinding>
    </bindings>
    <client>
      <endpoint behaviorConfiguration="webEndpoint" address="http://localhost:14502/MySvcHost/MySVC.svc" binding="webHttpBinding" bindingConfiguration="BasicHttpBinding_RestServiceInterface2" contract="MySVC.RestServiceInterface" name="BasicHttpBinding_RestServiceInterface2"/>
    </client>

Answer 1

编辑 3：

1. 将 baseAddress 添加到您的 web.config 并删除所有不必要的内容：

   <system.serviceModel>
     <services>
       <service name="Service.ParseService"
                behaviorConfiguration="ServiceBehaviour" >
         <endpoint address="" 
                   binding="webHttpBinding" behaviorConfiguration="webBehavior"
                   contract="Service.RestServiceInterface" name="BasicHttpBinding_RestServiceInterface2">
         </endpoint>
         <host>
           <baseAddresses>
             <add baseAddress="http://localhost:14502/MySvcHost/MySVC.svc"/>
           </baseAddresses>
         </host>
       </service>
     </services>
     <behaviors>
       <serviceBehaviors>
         <behavior name="ServiceBehaviour">
           <serviceMetadata httpGetEnabled="true" httpsGetEnabled="true" />
           <serviceDebug includeExceptionDetailInFaults="false"/>
         </behavior>
       </serviceBehaviors>
       <endpointBehaviors>
         <behavior name="webBehavior">
           <webHttp />
         </behavior>
       </endpointBehaviors>
     </behaviors>
   
   </system.serviceModel>
   

2. 启用 CORS，在服务项目的 web.config 中添加这样的行：

   <system.webServer>
     <httpProtocol>
       <customHeaders>
         <add name="Access-Control-Allow-Origin" value="*" />
         <add name="Access-Control-Allow-Methods" value="GET, POST" />
       </customHeaders>
     </httpProtocol>
   </system.webServer>
   

3. 您的项目中必须有 MySVC.svc。内容应该是这样的：

   <%@ ServiceHost Language="C#" Factory="System.Data.Services.DataServiceHostFactory, System.Data.Services, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" Service="Service.ParseService" %>
   

4. 界面应该是：

   [ServiceContract]
   public interface RestServiceInterface
   {
      [WebInvoke(Method = "POST", RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json,
           BodyStyle = WebMessageBodyStyle.Bare, UriTemplate = "MySVC")]
      Stream MySVC(string stringP); 
   
   }
   

   *注意接口名应该从 I 开始 - IFileService, IMessageService...
   *Uri 应该标识资源并且应该像这样描述：

   POST: http://localhost/files/
   GET: http://localhost/files/1
   

   在REST API best practice、REST API design了解更多信息

5. 方法实现示例：

   public Stream MySVC(string stringP)
   {
       var mem = new MemoryStream();
       var ser = new DataContractJsonSerializer(typeof(string));
       ser.WriteObject(mem, stringP);
   
       mem.Seek(0, SeekOrigin.Begin);
   
       return mem;
   }
   

6. Ajax 调用：

   $.ajax(
   {
       type: "POST",
       processData: false,
       contentType: "application/json",
       url: "http://localhost:14502/MySvcHost/MySVC.svc/MySVC",
       data: '"plnainString"',
       dataType: "jsonp",
       success: function (data) { alert(data); },
       error: function (data) { alert('error')); }
   })
   

   *注意：如果您从不同的机器调用服务然后托管服务，您必须将 localhost 更改为具体的机器名称（或 IP）

7. 仅用于调试目的启用包括异常堆栈跟踪到故障消息。更改服务项目的 web.config (includeExceptionDetailInFaults="true")：

   <serviceBehaviors>
     <behavior name="ServiceBehaviour">
       <serviceMetadata httpGetEnabled="true" httpsGetEnabled="true" />
       <serviceDebug includeExceptionDetailInFaults="true"/>
     </behavior>
   </serviceBehaviors>