我正在使用 WCF 编写一个 Web 服务。
我创建了数据合约。
我创建了我的服务合同(界面)。我定义了方法(其参数的类型与数据契约相同)。
我实现了创建服务类的服务合同。
我使用 svc 文件和 IIS 托管我的服务。
我尝试了我的服务,寻找http://localhost/myvirtdiriis/myservice.svc http://localhost/myvirtdiriis/myservice.svc--> 服务已加载,并且显示了一个漂亮的网页,描述了我的服务的存在。
我想看看 WSDL。使用提供的链接,我可以看到类型仅被定义,我只能看到类型定义(例如<complexType>
),但里面什么也没有(类型为空)。
我编写了一个简单的客户端,对操作的调用进展顺利,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,对返回类型的操作的调用通过操作契约方法将三个字符串设置为“Hello”、“Hello2”和“Hello3”,返回将这些字符串设置为的类型""
(构造值,就好像没有发生变化一样)。
发生了什么?
看来序列化失败了。
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);
...
}
A2) 服务实施:
public class MyService : IOCXSService {
...
public BrowseResponse Browse(BrowseRequest request) {
...
}
...
}
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));
}
}
}
C) WSDL(一部分,涉及类型定义的部分)
<?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>
上面的部分包含在这里:
<?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>
笔记:
如果我删除MessageContract
属性来自BrowseResponse
and BrowseRequest
(两者都删除了,否则运行时会变得疯狂),问题仍然存在......
这真的是一个关于消息合同的问题吗???
也许是解决方案
好吧大家,也许我能看到曙光......
如果我删除所有DataContract
(s) and ServiceContract
(s) 属性名称空间和名称(始终不带MessageContract
(s)),一切正常。好吧,我得到了 wsdl 和类型,但即使使用它们也能工作(但总是没有MessageContract
(s))。
原因如下(我想得到您的确认):
我指定的命名空间:http://opcfoundation.org/webservices/XMLDA/1.0/ http://opcfoundation.org/webservices/XMLDA/1.0/这不是一个简单的名称,好吧,在这里您可以找到我的操作和类型的 WSDL 定义(已定义)。我的 svc 不会生成带有类型的完整 WSDL 定义,因为它已经在我提供的名称空间中定义了它们!
你怎么看待这件事?