由网友(浪漫的壊小孩灬)分享简介：到现在为止我已经使用的web服务ASMX这是我从JavaScript调用。据工作正常，但因为我需要在系列化一些控制，我想切换到DataContracts和WCF。但是，我相信，有件事我有误解，因为我试着去追赶从客户端code（JavaScript）的faultexceptions，但Ç林接受的唯一错误$ C $是：...

到现在为止我已经使用的web服务ASMX这是我从JavaScript调用。据工作正常，但因为我需要在系列化一些控制，我想切换到DataContracts和WCF。 但是，我相信，有件事我有误解，因为我试着去追赶从客户端code（JavaScript）的faultexceptions，但Ç林接受的唯一错误$ C $是： （翻译，所以可能不准确）

Until now I have used an webservice ASMX which I call from javascript. It has been working fine, but because I needed some control over the serialization, I am trying to switch to DataContracts and WCF. However, I do believe that there is something I have misunderstood, because Im trying to catch faultexceptions from the client code (javascript), but the only errorcode Im receiving is: (translated, so might not be accurate)

由于实习错误服务器无法处理请求。你可以得到有关被激活IncludeExceptionDetailInFaults错误的详细信息...

"The server could not handle the request because of an intern error. You can get more info about the error by activate IncludeExceptionDetailInFaults..."

我试图设置IncludeExceptionDetailInFauls为true这就给一些信息，但据我了解，整点投掷FaultExceptions是对用户隐藏例外，只丢一点点的信息？我试着用IErrorHandler，但我有 创建一个简单的例子：

I have tried to set IncludeExceptionDetailInFauls to true which gives some info, but as far as I understood, the whole point by throwing FaultExceptions is to hide exceptions from the user, and only throw a little info? Im trying with a IErrorHandler, but I have created a simpler example:

[ServiceContract(Namespace = "")]
[AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
public class WcfTest
{
    // To use HTTP GET, add [WebGet] attribute. (Default ResponseFormat is WebMessageFormat.Json)
    // To create an operation that returns XML,
    //    add [WebGet(ResponseFormat=WebMessageFormat.Xml)],
    //    and include the following line in the operation body:
    //        WebOperationContext.Current.OutgoingResponse.ContentType = "text/xml";
    [OperationContract]
    public string DoOk()
    {
        // Add your operation implementation here
        return "Success";
    }
    [OperationContract]
    public string DoFail()
    {
        FaultReason reason = new FaultReason("Fail <- This is good :)");
        throw new FaultException(reason);
        return "Success";
    }
}

这是包含在一个ScriptManager，并呼吁通过以下的javascript：

<a href="java script:void(0);" onclick="DoOk()">OK</a><br />
        <a href="java script:void(0);" onclick="DoFail()">Fail</a>
        <script>
            function DoOk() {
                WcfTest.DoOk(
                    function (result) {
                        alert("DoOk Success: "+result);
                    },
                    function (result) {
                        alert("DoOk Failed: " + result);
                    })
            }
            function DoFail() {
                WcfTest.DoFail(
                    function (result) {
                        alert("DoFail Success: " + result);
                    },
                    function (result) {
                        alert("DoFail Failed: " + result);
                    })        
            }
        </script>

和服务模式：

<system.serviceModel>
  <behaviors>
    <serviceBehaviors>
      <behavior name="WcfTestAspNetAjaxBehavior">
      </behavior>
    </serviceBehaviors>
  <endpointBehaviors>
    <behavior name="WcfTestAspNetAjaxBehavior">
    <enableWebScript />
    </behavior>
  </endpointBehaviors>
  </behaviors>
  <serviceHostingEnvironment aspNetCompatibilityEnabled="true"
  multipleSiteBindingsEnabled="true" />
  <services>
  <service name="WcfTest">
    <endpoint address="" behaviorConfiguration="WcfTestAspNetAjaxBehavior"
    binding="webHttpBinding" contract="WcfTest" />
  </service>
  </services>
</system.serviceModel>

香港专业教育学院还试图以纪念DoFail方法的组合：

Ive also tried to mark the DoFail method with combinations of:

[FaultContract(typeof(FaultException))]  
[FaultContract(typeof(FaultReason))]

我有没有误解的东西吗？不应该你能得到的异常信息回抛出一个的FaultException ，而无需设置 IncludeExceptionDetailInFaults 来真的吗？

Have I misunderstood something? Shouldnt you be able to get exception info back by throwing an FaultException without having to set IncludeExceptionDetailInFaults to true?

推荐答案

获得jQuery和WCF交谈 错误处理的WebHttpBinding为Ajax / JSON

Useful resources:

Getting jQuery and WCF to talk Error handling with WebHttpBinding for Ajax/JSON

将impelemting IErrorHandler接口创建自己的错误处理程序 创建WebHttpBehavior的子类，替换默认的错误处理，你自己的错误处理程序 插件自定义/延长使用自定义ServiceHostFactory或定义为behaviorExtension在web.config中的行为