我無法反序列化我的WCF Web服務的結果。該方法返回一個List<RecipeEntity>
,它被序列化爲XML,如下所示。當我嘗試反序列化時,我只是得到一個異常,如下所示。看來我無法反序列化<ArrayOfRecipe>
到List<RecipeEntity>
。請注意0由合同名稱映射到Recipe
。將XML反序列化爲<ArrayOf>以列表<>
搜索後,我看到很多人提出了XmlArray和XmlElement屬性,但據我所知他們不適用於GetRecipes()
方法。我只看到它們用在序列化類的字段上。
我知道我可以將List<RecipeEntity>
包裝在RecipeList
類中,然後返回,但是我寧願直接反序列化到列表<>以獲得任何給定的類型。
例外:
System.InvalidOperationException was caught
Message=There is an error in XML document (1, 2).
StackTrace:
at System.Xml.Serialization.XmlSerializer.Deserialize(XmlReader xmlReader, String encodingStyle, Object events)
at System.Xml.Serialization.XmlSerializer.Deserialize(XmlReader xmlReader, String encodingStyle)
at System.Xml.Serialization.XmlSerializer.Deserialize(XmlReader xmlReader)
at GroceriesAppSL.Pages.Home.GetRecipesCallback(RestResponse response)
InnerException: System.InvalidOperationException
Message=<ArrayOfRecipe xmlns='Groceries.Entities'> was not expected.
StackTrace:
at Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationReaderList1.Read5_Recipe()
InnerException:
數據合同:
[DataContract(Name = "Recipe", Namespace = "Groceries.Entities")]
public class RecipeEntity
{
[DataMember] public int Id;
[DataMember] public string Name;
[DataMember] public string Description;
}
實現:
[ServiceContract]
public interface IMyService
{
[OperationContract]
[WebGet(ResponseFormat = WebMessageFormat.Xml, UriTemplate = "Recipes/{username}")]
List<RecipeEntity> GetRecipes(string username);
}
public class MyService : IMyService
{
public List<RecipeEntity> GetRecipes(string username)
{
return _recipeDB.Recipes.Select(ToEntity).ToList();
}
}
例XML結果,僅用於說明目的。
<ArrayOfRecipe xmlns="Groceries.Entities" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
<Recipe>
<Id>139</Id>
<Name>ExampleRecipe</Name>
<Description>5 L milk;4 eggs</Description>
</Recipe>
<Recipe>...</Recipe>
<Recipe>...</Recipe>
<Recipe>...</Recipe>
...
</ArrayOfRecipe>
反序列化代碼:
using (var xmlReader = XmlReader.Create(new StringReader(response.Content)))
{
var xs = new System.Xml.Serialization.XmlSerializer(typeof(List<RecipeEntity>));
var recipes = (List<RecipeEntity>)xs.Deserialize(xmlReader);
}