Question

我有一个带有SOAP端点的WCF服务。我添加了一个REST端点，Get方法正常工作。我遇到一个POST方法有问题，它接受一个对象并返回一个不同的对象。当我传入我的对象时，我收到了这个错误：

＆＃34;消息＆＃34;：＆＃34;对象引用未设置为对象的实例。＆＃34;

以下是调用服务的代码：

string URL = "http://qa.acct.webservice";

HttpClient client = new HttpClient();
client.BaseAddress = new Uri(URL);

// Add an Accept header for JSON format.
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
// HTTP POST
var request = new RequestGetInventory
     {
         BrandIDs = new string[] { "4", "42" },
         AccountID = "9900003"
     };
var resp = client.PostAsJsonAsync("/AxaptaService.svc/rest/GetInventory", request);
response = resp.Result;
if (response.IsSuccessStatusCode)
{
     var temp = response.Content.ReadAsStringAsync().Result;
     MessageBox.Show(temp); //error message received here.
}

RequestGetInventory对象定义如下：

[DataContract]
public class RequestGetInventory
{
    [DataMember]
    public string[] BrandIDs { get; set; }

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

}

网络服务的合同定义如下：

[OperationContract]
[WebInvoke(Method = "POST",
    RequestFormat = WebMessageFormat.Json,
    BodyStyle = WebMessageBodyStyle.WrappedRequest,
    ResponseFormat = WebMessageFormat.Json)]
ResponseGetInventory GetInventory(RequestGetInventory Request);

我尝试使用WebInvoke参数，但收到了所有可行尝试的相同错误消息。

这就是我的web.config设置方式：

<system.serviceModel>
<services>
  <service behaviorConfiguration="" name="Proj.AxaptaUS.WebService.AxaptaService">
    <endpoint address="rest" behaviorConfiguration="webBehavior" binding="webHttpBinding" contract="Proj.Interfaces.Axapta3.IAxaptaService"></endpoint>
    <endpoint address="" binding="basicHttpBinding" contract="Proj.Interfaces.Axapta3.IAxaptaService"></endpoint>
  </service>
</services>
<behaviors>
  <serviceBehaviors>
    <behavior>
      <!-- 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="webBehavior">
      <webHttp helpEnabled="true" />
      <enableWebScript/>
    </behavior>
  </endpointBehaviors>
</behaviors>
<protocolMapping>
    <add binding="basicHttpsBinding" scheme="https" />
</protocolMapping>    
<serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" />
</system.serviceModel>

我不完全确定我做错了什么，因为我可以使用SOAP访问它。看起来它没有为我传入的对象获取任何值，从而导致对象引用错误。

任何帮助将不胜感激！谢谢！

Answer 1

@jstreet发表了一条评论，最终结束了。我将BodyStyle = WebMessageBodyStyle.WrappedRequest更改为BodyStyle = WebMessageBodyStyle.Bare并从配置文件中删除了<enableWebScript/>。

做完这些事后，它开始正常工作！谢谢@jstreet！

WCF服务未在POST中接收数据

1 个答案: