WCF客户端服务器提供List或Array自定义类对象的任何示例都会对我有帮助!但这是我到目前为止所做的:
这是我要提供的班级系统
namespace NEN_Server.FS {
[Serializable()]
public class XFS {
private List<NFS> files;
public XFS() {
files = new List<NFS>();
}
public List<NFS> Files {
get { return files; }
set { files = value; }
}
}
}
NFS是
namespace NEN_FS {
public interface INFS : IEquatable<NFS> {
string Path { get; set; }
}
[Serializable()]
abstract public class NFS : INFS {
abstract public string Path { get; set; }
public NFS() {
Path = "";
}
public NFS(string path) {
Path = path;
}
public override bool Equals(object obj) {
NFS other = obj as NFS;
return (other != null) && ((IEquatable<NFS>)this).Equals(other);
}
bool IEquatable<NFS>.Equals(NFS other) {
return Path.Equals(other.Path);
}
public override int GetHashCode() {
return Path != null ? Path.GetHashCode() : base.GetHashCode();
}
}
}
并提供方法是:
namespace NEN_Server.WCF {
public class NEN : INEN {
private MMF mmf;
public NEN() {
mmf = new MMF();
}
public string GetRandomCustomerName() {
return mmf.MMFS.Files[0].Path;
}
public NFS[] ls() {
return mmf.MMFS.Files.ToArray();
}
界面
<ServiceContract>
Public Interface INEN
<OperationContract>
Function GetRandomCustomerName() As String
<OperationContract()>
Function ls() As NFS()
最后我做了:
%svcutil% /language:cs /out:NEN_Protocol\NEN.cs http://localhost:8080/NEN_Server
它生成:
public NEN_FS.NFS[] ls()
{
return base.Channel.ls();
}
我在我的客户端应用程序let files = nen.ls()中调用它,但它失败了:
An unhandled exception of type 'System.ServiceModel.CommunicationException' occurred in mscorlib.dll
Additional information: The underlying connection was closed: The connection was closed unexpectedly.
在return base.Channel.ls();
代码行上。
注意提供字符串mmf.MMFS.Files[0].Path;
的工作正常
为什么呢?我究竟做错了什么? :)
GitHub上提供了所有代码:https://github.com/nCdy/NENFS
答案 0 :(得分:2)
在我看来,错误的原因在于:abstract public class NFS
首先,考虑将data contracts与WCF一起使用:
[DataContract(IsReference = true)]
abstract public class NFS : INFS
{
[DataMember]
abstract public string Path { get; set; }
// the rest of code here
}
第二个,为您的数据合同指定known types。通信渠道两侧的序列化程序必须知道如何对具体NFS
'后代类型进行seralize / deserialize:
[DataContract(IsReference = true)]
[KnownType(typeof(NFS1))]
[KnownType(typeof(NFS2))]
abstract public class NFS : INFS
{
[DataMember]
abstract public string Path { get; set; }
// the rest of code here
}
public class NFS1 : NFS {}
public class NFS2 : NFS {}