我要去边界线疯了,我一直在使用这超过了一天,仍然不知道为什么它不工作,WCF消息协定和流
我有一个MessageContract我是预计不会 :采用送出去一个流,但我得到以下错误,
类型“System.IO.FileStream”与数据 合同名称 “http://schemas.datacontract.org/2004/07/System.IO的FileStream”。将已知静态的 类型添加到已知的 类型的列表中 - 例如,使用 KnownTypeAttribute属性或 将它们添加到传递给DataContractSerializer的已知类型列表 。
[ServiceContract()]
public interface IContentService
{
[OperationContract(), FaultContract(typeof(ContentFault))]
PublishItemResponse PublishFile(PublishFileRequest request);
}
[MessageContract()]
public class PublishFileRequest
{
[MessageHeader()]
public FileInventoryItem Item {get;set;}
[MessageHeader()]
public Request Request {get;set;}
[MessageBodyMember()]
public Stream FileContent {get;set;}
}
[MessageContract()]
public class Request
{
[MessageHeader()]
public Guid AuthorizationToken { get; set; }
[MessageHeader()]
public string CoreVersion { get; set; }
[MessageHeader()]
public string Password { get; set; }
[MessageHeader()]
public DateTime RequestTime { get; set; }
[MessageHeader()]
public string ComponentVersion { get; set; }
[MessageHeader()]
public string UserName { get; set; }
}
[MessageContract()]
[Serializable()]
public class FileInventoryItem : InventoryItemBase
{
public Stream FileContent { get; set;}
}
[MessageContract()]
[KnownType(typeof(FileInventoryItem))]
[KnownType(typeof(FolderInventoryItem))]
[Serializable()]
public abstract class InventoryItemBase
{
public List<string> Errors {get;set;}
public List<string> Warnings {get;set;}
[MessageHeader()]
public StagingAction Action {get;set;}
[MessageHeader()]
public string ContentXml {get;set;}
[MessageHeader()]
public int ItemId {get;set;}
[MessageHeader()]
public ItemType ItemType { {get;set;}
[MessageHeader()]
public string Name {get;set;}
[MessageHeader()]
public int ParentId {get;set;}
[MessageHeader()]
public Guid ParentUniqueId {get;set;}
[MessageHeader()]
public Guid UniqueId {get;set;}
[MessageHeader()]
public Guid Version {get;set;}
}
任何帮助是极大挪用,
错误提到'System.IO.FileStream'。 ServiceContract中没有FileStream。为什么? – 2010-07-09 00:01:32
[MessageBodyMember()] public Stream FileContent {get; set;} 正在传入的是从Stream继承的File-stream。 – 2010-07-09 00:08:09
*从Stream继承*。那就是问题所在。你是否试图发送一个纯粹的流,看看它是否有效? – 2010-07-09 00:18:25