Question

我花了很多时间阅读各种表格。似乎没有什么工作。我有一个简单的启用Ajax的WCF服务。我可以调用Read方法，它可以找到，发布就是问题。

这是我的web.config：

<system.serviceModel>
    <behaviors>
      <endpointBehaviors>
        <behavior name="CompanyNotificationService.NotificationManager.MessagesAspNetAjaxBehavior">
          <webHttp defaultOutgoingResponseFormat="Json"/>
        </behavior>
      </endpointBehaviors>
    </behaviors>
    <serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" />
    <services>
      <service name="CompanyNotificationService.NotificationManager.Messages">
        <endpoint address="" behaviorConfiguration="CompanyNotificationService.NotificationManager.MessagesAspNetAjaxBehavior"
          binding="webHttpBinding" contract="CompanyNotificationService.NotificationManager.Messages" bindingConfiguration="defaultRestJson" />
      </service>
    </services>
    <bindings>
      <webHttpBinding>
        <binding name="defaultRestJson" crossDomainScriptAccessEnabled="false">
          <readerQuotas maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxDepth="64" maxNameTableCharCount="2147483647" />
          <security mode="None" />
        </binding>
      </webHttpBinding>
    </bindings>
  </system.serviceModel>

我的服务

[ServiceContract(Namespace = "NotificationManager.Messages")]
[AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
    [ServiceBehavior(InstanceContextMode = InstanceContextMode.Single, IncludeExceptionDetailInFaults = true)]
    public class Messages
    {
        [OperationContract, WebGet(ResponseFormat = WebMessageFormat.Json, BodyStyle = WebMessageBodyStyle.Bare)]
        public List<Message> Read()
        {
            Notifications notifications = Notifications.Get();
            return notifications.Messages;
        }
        [OperationContract, WebInvoke(Method = "POST", RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json, BodyStyle = WebMessageBodyStyle.WrappedRequest)]
        public void Create(Message models)
        {
            var i = 1; //I break here, just to inspect everything...not finished
        }

[DataContract]
public class Message : IMessage
{
    [DataMember]
    public string ID { get; set; }
    [DataMember]
    public string Text { get; set; }
    [DataMember]
    public DateTime StartDate { get; set; }
    [DataMember]
    public DateTime ResumeDate { get; set; }
    [DataMember]
    public string CreatedUser { get; set; }
}

小提琴手信息

POST http://localhost:64394/NotificationManager/Messages.svc/Create HTTP/1.1
Accept: application/json, text/javascript, */*; q=0.01
Content-Type: application/json
X-Requested-With: XMLHttpRequest
Referer: http://localhost:64394/NotificationManager/Manage.aspx
Accept-Language: en-US
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko
Host: localhost:64394
Content-Length: 1130
DNT: 1
Connection: Keep-Alive
Pragma: no-cache
Cookie: __AntiXsrfToken=82ba422caa20485690cc905fe6a4b022

HTTP/1.1 400 Bad Request

最后是异常

服务器在处理请求时遇到错误   异常消息是'格式化程序在尝试反序列化消息时引发异常：反序列化操作'Create'的请求消息正文时出错。遇到意外的角色'm'。'。请参阅服务器日志以获取更多详

异常堆栈跟踪是：

在System.ServiceModel.Dispatcher.OperationFormatter.DeserializeRequest（消息消息，Object []参数）.....

哦，我几乎从fiddler获得了json

models=[{"ID":"1","Text":"here is my message","StartDate":"2013-12-07T06:54:34.396Z","ResumeDate":"2013-12-07T06:54:34.396Z","CreatedUser":"charbaugh"}]

任何帮助都会很棒！我从未在这里发帖，我总能快速找到答案，但这让我失败了！

Answer 1

当然，异常是因为WCF服务期望一个以{开头的JSON对象，但您的正文始于m models=...。这是不正确的。

对于您的请求，正确的JSON要发送到服务是：

{"models": {"ID":"1","Text":"here is my message","StartDate":"/Date(1320825600000-0800)/","ResumeDate":"/Date(1320825600000-0800)/","CreatedUser":"charbaugh"}}

另请注意，我更改了日期时间内容/格式。有关详细信息，请参阅：How do I format a Microsoft JSON date?

Answer 2

问题可能出在客户端。我看到你使用ajax来调用你的服务。我看到将对象传递给ajax请求时可能会出现问题，尝试将其作为字符串传递。

data: '[{"ID":"1","Text":"here is my message","StartDate":"2013-12-07T06:54:34.396Z","ResumeDate":"2013-12-07T06:54:34.396Z","CreatedUser":"charbaugh"}]'

此处有更多信息：http://encosia.com/asmx-scriptservice-mistake-invalid-json-primitive/

WCF方法不接受POST

2 个答案: