那些遇到过的问题

序列化.NET WCF服务类型的问题:服务WSDL在XSD中定义空类型

And*_*dry 5 .net c# wcf serialization web-services

我正在使用WCF编写Web服务.

  1. 我创建了数据合同.

  2. 我创建了我的服务合同(接口).我定义了方法(其参数的类型与数据契约类型相同).

  3. 我实现了创建服务类的服务合同.

  4. 我使用svc文件和IIS托管我的服务.

  5. 我尝试了我的服务,查找了http://localhost/myvirtdiriis/myservice.svc - >服务已加载,并且显示了一个描述我服务存在的漂亮网页.

  6. 我想看一下WSDL.使用提供的链接我可以看到只定义了类型,我只能看到类型定义(如<complexType>),但内部没有(类型为空).

  7. 我编写了一个简单的客户端,对一个操作的调用很顺利,但是当返回类型时它是空的(内部字段具有构造值,而我的服务在那里放置一些值),例如,调用返回类型的操作具有由操作契约方法设置为"Hello","Hello2"和"Hello3"的三个字符串,返回将这些字符串设置为的类型""(构造值,好像没有发生变化).

发生了什么？

似乎序列化失败了.

我提供一些:

A1)服务合同的一部分:

[ServiceContract(Namespace = "http://opcfoundation.org/webservices/XMLDA/1.0/")]
   public interface IOCXSService {
      [OperationContract(Action = "http://opcfoundation.org/webservices/XMLDA/1.0/Browse")]
      BrowseResponse Browse(BrowseRequest request);
      ...
}
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A2)服务实施:

public class MyService : IOCXSService {
      ...
      public BrowseResponse Browse(BrowseRequest request) {
         ...
      }
      ...
   }
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B)类型:

[DataContract(Namespace = "http://opcfoundation.org/webservices/XMLDA/1.0/", Name = "BrowseResponse")]
    [System.ServiceModel.MessageContractAttribute(WrapperName = "BrowseResponse", WrapperNamespace = "http://opcfoundation.org/webservices/XMLDA/1.0/", IsWrapped = true)]
    public class BrowseResponse {

        [DataMember(Name = "BrowseResult", Order = 0)]
        public OCXS.OCXSServiceLibrary.OPCXMLDA10.ReplyBase BrowseResult;

        [DataMember(Name = "Elements", Order = 1)]
        public BrowseElement[] Elements;

        [DataMember(Name = "Errors", Order = 2)]
        public OPCError[] Errors;

        [DataMember(Name = "ContinuationPoint", Order = 3)]
        public string ContinuationPoint;

        [DataMember(Name = "MoreElements", Order = 4)]
        public bool MoreElements;

        public BrowseResponse() {
        }

        public BrowseResponse(OCXS.OCXSServiceLibrary.OPCXMLDA10.ReplyBase BrowseResult, BrowseElement[] Elements, OPCError[] Errors, string ContinuationPoint, bool MoreElements) {
            this.BrowseResult = BrowseResult;
            this.Elements = Elements;
            this.Errors = Errors;
            this.ContinuationPoint = ContinuationPoint;
            this.MoreElements = MoreElements;
        }

[DataContract(Namespace = "http://opcfoundation.org/webservices/XMLDA/1.0/", Name = "ReplyBase")]
    public class ReplyBase : System.ComponentModel.INotifyPropertyChanged {

        private System.DateTime rcvTimeField;

        private System.DateTime replyTimeField;

        private string clientRequestHandleField;

        private string revisedLocaleIDField;

        private serverState serverStateField;

        [DataMember(Name = "RcvTime", Order = 0)]
        public System.DateTime RcvTime {
            get {
                return this.rcvTimeField;
            }
            set {
                this.rcvTimeField = value;
                this.RaisePropertyChanged("RcvTime");
            }
        }

        [DataMember(Name = "ReplyTime", Order = 1)]
        public System.DateTime ReplyTime {
            get {
                return this.replyTimeField;
            }
            set {
                this.replyTimeField = value;
                this.RaisePropertyChanged("ReplyTime");
            }
        }

        [DataMember(Name = "ClientRequestHandle", Order = 2)]
        public string ClientRequestHandle {
            get {
                return this.clientRequestHandleField;
            }
            set {
                this.clientRequestHandleField = value;
                this.RaisePropertyChanged("ClientRequestHandle");
            }
        }

        [DataMember(Name = "RevisedLocaleID", Order = 3)]
        public string RevisedLocaleID {
            get {
                return this.revisedLocaleIDField;
            }
            set {
                this.revisedLocaleIDField = value;
                this.RaisePropertyChanged("RevisedLocaleID");
            }
        }

        [DataMember(Name = "ServerState", Order = 4)]
        public serverState ServerState {
            get {
                return this.serverStateField;
            }
            set {
                this.serverStateField = value;
                this.RaisePropertyChanged("ServerState");
            }
        }

        public event System.ComponentModel.PropertyChangedEventHandler PropertyChanged;

        protected void RaisePropertyChanged(string propertyName) {
            System.ComponentModel.PropertyChangedEventHandler propertyChanged = this.PropertyChanged;
            if ((propertyChanged != null)) {
                propertyChanged(this, new System.ComponentModel.PropertyChangedEventArgs(propertyName));
            }
        }
    }

[DataContract(Namespace = "http://opcfoundation.org/webservices/XMLDA/1.0/", Name = "BrowseElement")]
    public class BrowseElement : INotifyPropertyChanged {

        private ItemProperty[] propertiesField;

        private string nameField;

        private string itemPathField;

        private string itemNameField;

        private bool isItemField;

        private bool hasChildrenField;

        [DataMember(Name = "Properties", Order = 0)]
        public ItemProperty[] Properties {
            get {
                return this.propertiesField;
            }
            set {
                this.propertiesField = value;
                this.RaisePropertyChanged("Properties");
            }
        }

        [DataMember(Name = "Name", Order = 1)]
        public string Name {
            get {
                return this.nameField;
            }
            set {
                this.nameField = value;
                this.RaisePropertyChanged("Name");
            }
        }

        [DataMember(Name = "ItemPath", Order = 2)]
        public string ItemPath {
            get {
                return this.itemPathField;
            }
            set {
                this.itemPathField = value;
                this.RaisePropertyChanged("ItemPath");
            }
        }

        [DataMember(Name = "ItemName", Order = 3)]
        public string ItemName {
            get {
                return this.itemNameField;
            }
            set {
                this.itemNameField = value;
                this.RaisePropertyChanged("ItemName");
            }
        }

        [DataMember(Name = "IsItem", Order = 4)]
        public bool IsItem {
            get {
                return this.isItemField;
            }
            set {
                this.isItemField = value;
                this.RaisePropertyChanged("IsItem");
            }
        }

        [DataMember(Name = "HasChildren", Order = 5)]
        public bool HasChildren {
            get {
                return this.hasChildrenField;
            }
            set {
                this.hasChildrenField = value;
                this.RaisePropertyChanged("HasChildren");
            }
        }

        public event System.ComponentModel.PropertyChangedEventHandler PropertyChanged;

        protected void RaisePropertyChanged(string propertyName) {
            System.ComponentModel.PropertyChangedEventHandler propertyChanged = this.PropertyChanged;
            if ((propertyChanged != null)) {
                propertyChanged(this, new System.ComponentModel.PropertyChangedEventArgs(propertyName));
            }
        }

    }

[DataContract(Namespace = "http://opcfoundation.org/webservices/XMLDA/1.0/", Name = "OPCError")]
    public class OPCError : System.ComponentModel.INotifyPropertyChanged {

        private string textField;

        private System.Xml.XmlQualifiedName idField;

        [DataMember(Name = "Text", Order = 0)]
        public string Text {
            get {
                return this.textField;
            }
            set {
                this.textField = value;
                this.RaisePropertyChanged("Text");
            }
        }

        [DataMember(Name = "ID", Order = 1)]
        public System.Xml.XmlQualifiedName ID {
            get {
                return this.idField;
            }
            set {
                this.idField = value;
                this.RaisePropertyChanged("ID");
            }
        }

        public event System.ComponentModel.PropertyChangedEventHandler PropertyChanged;

        protected void RaisePropertyChanged(string propertyName) {
            System.ComponentModel.PropertyChangedEventHandler propertyChanged = this.PropertyChanged;
            if ((propertyChanged != null)) {
                propertyChanged(this, new System.ComponentModel.PropertyChangedEventArgs(propertyName));
            }
        }
    }
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C)WSDL(一部分,与类型定义有关的部分)

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:tns="http://opcfoundation.org/webservices/XMLDA/1.0/" targetNamespace="http://opcfoundation.org/webservices/XMLDA/1.0/" xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">
<xs:element name="Browse">
      <xs:complexType>
         <xs:sequence/>
      </xs:complexType>
   </xs:element>
   <xs:element name="BrowseResponse">
      <xs:complexType>
         <xs:sequence/>
      </xs:complexType>
   </xs:element>
   <xs:element name="GetProperties">
      <xs:complexType>
         <xs:sequence/>
      </xs:complexType>
   </xs:element>
   <xs:element name="GetPropertiesResponse">
      <xs:complexType>
         <xs:sequence/>
      </xs:complexType>
   </xs:element>
   <xs:element name="GetStatus">
      <xs:complexType>
         <xs:sequence/>
      </xs:complexType>
   </xs:element>
   <xs:element name="GetStatusResponse">
      <xs:complexType>
         <xs:sequence/>
      </xs:complexType>
   </xs:element>
   <xs:element name="Read">
      <xs:complexType>
         <xs:sequence/>
      </xs:complexType>
   </xs:element>
   <xs:element name="ReadResponse">
      <xs:complexType>
         <xs:sequence/>
      </xs:complexType>
   </xs:element>
   <xs:element name="Subscribe">
      <xs:complexType>
         <xs:sequence/>
      </xs:complexType>
   </xs:element>
   <xs:element name="SubscribeResponse">
      <xs:complexType>
         <xs:sequence/>
      </xs:complexType>
   </xs:element>
   <xs:element name="SubscriptionCancel">
      <xs:complexType>
         <xs:sequence/>
      </xs:complexType>
   </xs:element>
   <xs:element name="SubscriptionCancelResponse">
      <xs:complexType>
         <xs:sequence/>
      </xs:complexType>
   </xs:element>
   <xs:element name="SubscriptionPolledRefresh">
      <xs:complexType>
         <xs:sequence/>
      </xs:complexType>
   </xs:element>
   <xs:element name="SubscriptionPolledRefreshResponse">
      <xs:complexType>
         <xs:sequence/>
      </xs:complexType>
   </xs:element>
   <xs:element name="Write">-<xs:complexType><xs:sequence/></xs:complexType></xs:element>
      <xs:element name="WriteResponse">
         <xs:complexType>
         <xs:sequence/>
      </xs:complexType>
   </xs:element>
</xs:schema>
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上面的部分包括在这里:

<?xml version="1.0" encoding="UTF-8"?>
<wsdl:definitions xmlns:wsam="http://www.w3.org/2007/05/addressing/metadata" xmlns:wsx="http://schemas.xmlsoap.org/ws/2004/09/mex" xmlns:wsa10="http://www.w3.org/2005/08/addressing" xmlns:msc="http://schemas.microsoft.com/ws/2005/12/wsdl/contract" xmlns:wsaw="http://www.w3.org/2006/05/addressing/wsdl" xmlns:wsap="http://schemas.xmlsoap.org/ws/2004/08/addressing/policy" xmlns:wsp="http://schemas.xmlsoap.org/ws/2004/09/policy" xmlns:wsa="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:tns="http://opcfoundation.org/webservices/XMLDA/1.0/" xmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" targetNamespace="http://opcfoundation.org/webservices/XMLDA/1.0/">
<wsdl:types>
<xsd:schema targetNamespace="http://opcfoundation.org/webservices/XMLDA/1.0/Imports">
<xsd:import namespace="http://opcfoundation.org/webservices/XMLDA/1.0/" schemaLocation="http://localhost/OCXS/OCXS.svc?xsd=xsd0"/></xsd:schema></wsdl:types>
<wsdl:message name="BrowseRequest"><wsdl:part name="parameters" element="tns:Browse"/></wsdl:message>
<wsdl:message name="BrowseResponse"><wsdl:part name="parameters" element="tns:BrowseResponse"/></wsdl:message>
<wsdl:message name="GetPropertiesRequest"><wsdl:part name="parameters" element="tns:GetProperties"/></wsdl:message>
<wsdl:message name="GetPropertiesResponse"><wsdl:part name="parameters" element="tns:GetPropertiesResponse"/></wsdl:message>
<wsdl:message name="GetStatusRequest"><wsdl:part name="parameters" element="tns:GetStatus"/></wsdl:message>
<wsdl:message name="GetStatusResponse"><wsdl:part name="parameters" element="tns:GetStatusResponse"/></wsdl:message>
<wsdl:message name="ReadRequest"><wsdl:part name="parameters" element="tns:Read"/></wsdl:message>-<wsdl:message name="ReadResponse"><wsdl:part name="parameters" element="tns:ReadResponse"/></wsdl:message>
<wsdl:message name="SubscribeRequest"><wsdl:part name="parameters" element="tns:Subscribe"/></wsdl:message>
<wsdl:message name="SubscribeResponse"><wsdl:part name="parameters" element="tns:SubscribeResponse"/></wsdl:message>
<wsdl:message name="SubscriptionCancelRequest"><wsdl:part name="parameters" element="tns:SubscriptionCancel"/></wsdl:message><wsdl:message name="SubscriptionCancelResponse"><wsdl:part name="parameters" element="tns:SubscriptionCancelResponse"/></wsdl:message>
<wsdl:message name="SubscriptionPolledRefreshRequest"><wsdl:part name="parameters" element="tns:SubscriptionPolledRefresh"/></wsdl:message>
<wsdl:message name="SubscriptionPolledRefreshResponse"><wsdl:part name="parameters" element="tns:SubscriptionPolledRefreshResponse"/></wsdl:message>
<wsdl:message name="WriteRequest"><wsdl:part name="parameters" element="tns:Write"/></wsdl:message>-<wsdl:message name="WriteResponse"><wsdl:part name="parameters" element="tns:WriteResponse"/></wsdl:message>
<wsdl:portType name="IOCXSService">-<wsdl:operation name="Browse"><wsdl:input name="BrowseRequest" message="tns:BrowseRequest" wsaw:Action="http://opcfoundation.org/webservices/XMLDA/1.0/Browse"/><wsdl:output name="BrowseResponse" message="tns:BrowseResponse" wsaw:Action="http://opcfoundation.org/webservices/XMLDA/1.0/IOCXSService/BrowseResponse"/></wsdl:operation>
<wsdl:operation name="GetProperties"><wsdl:input name="GetPropertiesRequest" message="tns:GetPropertiesRequest" wsaw:Action="http://opcfoundation.org/webservices/XMLDA/1.0/GetProperties"/><wsdl:output name="GetPropertiesResponse" message="tns:GetPropertiesResponse" wsaw:Action="http://opcfoundation.org/webservices/XMLDA/1.0/IOCXSService/GetPropertiesResponse"/></wsdl:operation>
<wsdl:operation name="GetStatus"><wsdl:input name="GetStatusRequest" message="tns:GetStatusRequest" wsaw:Action="http://opcfoundation.org/webservices/XMLDA/1.0/GetStatus"/><wsdl:output name="GetStatusResponse" message="tns:GetStatusResponse" wsaw:Action="http://opcfoundation.org/webservices/XMLDA/1.0/IOCXSService/GetStatusResponse"/></wsdl:operation>
<wsdl:operation name="Read"><wsdl:input name="ReadRequest" message="tns:ReadRequest" wsaw:Action="http://opcfoundation.org/webservices/XMLDA/1.0/Read"/><wsdl:output name="ReadResponse" message="tns:ReadResponse" wsaw:Action="http://opcfoundation.org/webservices/XMLDA/1.0/IOCXSService/ReadResponse"/></wsdl:operation>-<wsdl:operation name="Subscribe"><wsdl:input name="SubscribeRequest" message="tns:SubscribeRequest" wsaw:Action="http://opcfoundation.org/webservices/XMLDA/1.0/Subscribe"/><wsdl:output name="SubscribeResponse" message="tns:SubscribeResponse" wsaw:Action="http://opcfoundation.org/webservices/XMLDA/1.0/IOCXSService/SubscribeResponse"/></wsdl:operation>
<wsdl:operation name="SubscriptionCancel"><wsdl:input name="SubscriptionCancelRequest" message="tns:SubscriptionCancelRequest" wsaw:Action="http://opcfoundation.org/webservices/XMLDA/1.0/SubscriptionCancel"/><wsdl:output name="SubscriptionCancelResponse" message="tns:SubscriptionCancelResponse" wsaw:Action="http://opcfoundation.org/webservices/XMLDA/1.0/IOCXSService/SubscriptionCancelResponse"/></wsdl:operation>
<wsdl:operation name="SubscriptionPolledRefresh"><wsdl:input name="SubscriptionPolledRefreshRequest" message="tns:SubscriptionPolledRefreshRequest" wsaw:Action="http://opcfoundation.org/webservices/XMLDA/1.0/SubscriptionPolledRefresh"/><wsdl:output name="SubscriptionPolledRefreshResponse" message="tns:SubscriptionPolledRefreshResponse" wsaw:Action="http://opcfoundation.org/webservices/XMLDA/1.0/IOCXSService/SubscriptionPolledRefreshResponse"/></wsdl:operation>
<wsdl:operation name="Write"><wsdl:input name="WriteRequest" message="tns:WriteRequest" wsaw:Action="http://opcfoundation.org/webservices/XMLDA/1.0/Write"/><wsdl:output name="WriteResponse" message="tns:WriteResponse" wsaw:Action="http://opcfoundation.org/webservices/XMLDA/1.0/IOCXSService/WriteResponse"/></wsdl:operation></wsdl:portType></wsdl:definitions>
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注意:如果我MessageContract从中删除属性BrowseResponse和BrowseRequest(两者都删除了其他运行时变得疯狂),问题仍然存在......这是否真的是一个有关messagecontracts的问题？

可能是解决方案

好的每个人,也许我可以看到光...如果我删除所有DataContract(s)和ServiceContract(s)属性名称空间和名称(总是没有MessageContract(s)),一切正常.好吧,我得到了wsdl和类型,但是甚至与它们一起工作(但总是没有MessageContract(s)).这就是原因(我想得到你的确认):

我指定的命名空间:http://opcfoundation.org/webservices/XMLDA/1.0/不是一个简单的名称,在这里,您可以找到我的操作和类型(已定义)的WSDL定义.我的svc没有用类型生成完整的WSDL定义,因为我已经在我提供的那个命名空间中定义了它!

你怎么看待这件事？

car*_*ira 4

[MessageContract]除了 之外，您还将 BrowseResponse 类定义为 a [DataContract]。根据你所说的，似乎 [MessageContract] 优先（这是有道理的 - [MC] 定义了消息的 SOAP 信封，它可以包含Members，并且这些成员可以是数据契约。消息契约的成员是使用 或[MessageHeader]属性定义[MessageBodyMember]，并且由于您没有任何属性，因此合同本质上是空的。

您没有显示 BrowseRequest 的定义，但由于您在请求中使用 [MC] 类型，因此您还需要在响应中使用 [MC] 类型，所以我假设它有同样的问题。

  • MessageContract 并不是广泛使用的东西。当您希望请求/响应的某些部分进入 SOAP 主体，而某些部分进入 SOAP 标头（通常需要与现有服务进行互操作）时，通常会使用它 - 请参阅 http://msdn.microsoft .com/en-us/library/ms730255.aspx 了解更多信息。 (2认同)

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