我有一个 WCF 服务，它接受一个字符串作为其操作契约(Contract)之一的参数。但是，此字符串中包含 xml 内容。

我需要将其转换为标记为 DataContract 但不向外界公开的类。

我需要使用 DataContractSerializer，因为类成员的 [DataMember] 属性设置为不同的名称。例如:属性 Phone 的 DataMember Name 设置为 "Telephone"，因此当我使用普通序列化程序反序列化 xmldocument 时，我在反序列化程序查找Phone 元素不存在。

如何使用 DataContractSerializer 反序列化 XmlDocument？不过，一个限制是我无法将 xmldocument 保存到文件中。

编辑:找到一篇关于使用DataContractSerializer 进行序列化和反序列化的优秀文章 here.

我的客户端代码:

string xmldata = "<Customer> + 
                System.Environment.NewLine+ 
                "<Age>1</Age>"+
                System.Environment.NewLine+
                "<BirthDate>1900-01-01T01:01:01.0000000-05:00</BirthDate>" + 
                System.Environment.NewLine+
                "<FistName>John</FistName>"+
                System.Environment.NewLine +
                "<LastName>Doe</LastName>" +
                System.Environment.NewLine +
                "</Customer>";

doc.LoadXml(xmldata); 
Service1Client a = new Service1Client();
a.GetData(doc.OuterXml.ToString());

我的服务代码:

public string GetData(string per)
{
    string xmldata = per;
    XmlDocument xmlDoc = new XmlDocument();
    xmlDoc.LoadXml(xmldata);
    XmlDemo.Person a = Person.Create();

    DataContractSerializer ser = new DataContractSerializer(a.GetType());
    StringWriter stringWriter = new StringWriter();
    XmlTextWriter xmlWriter = new XmlTextWriter(stringWriter);
    xmlDoc.WriteTo(xmlWriter);

    MemoryStream stream = new MemoryStream(Encoding.ASCII.GetBytes(stringWriter.ToString()));
    stream.Position = 0;
    XmlDictionaryReader reader = XmlDictionaryReader.CreateTextReader(stream, new XmlDictionaryReaderQuotas());
    Person myContact = (Person)ser.ReadObject(reader, true);

    return string.Empty; 

}

我的数据合约:

[Serializable]
[DataContract(Name = "Customer")]
public class Person
{
    private Person() {}
    [DataMember(Name = "FistName")]
    public string FName { get; set; }
    [DataMember(Name = "LastName")]
    public string LName { get; set; }
    [DataMember(Name = "Age")]
    public int Age { get; set; }
    [DataMember(Name = "BirthDate")]
    public DateTime DOB { get; set; }

    public static Person Create()
    {
        return new Person();
    }
}

我在 Person myContact = (Person)ser.ReadObject(reader, true); 处收到此错误

Error in line 1 position 11. Expecting element 'Customer' from namespace 'http://schemas.datacontract.org/2004/07/XmlDemo'.. Encountered 'Element'  with name 'Customer', namespace ''.

最佳答案

直接从字符串反序列化

MemoryStream stream = new MemoryStream(Encoding.ASCII.GetBytes("<myXml />"));
stream.Position = 0;
XmlDictionaryReader reader = XmlDictionaryReader.CreateTextReader(stream, new XmlDictionaryReaderQuotas());
MyContact myContact = (MyContact)ser.ReadObject(reader, true);

从 XmlDocument 反序列化

StringWriter stringWriter = new StringWriter();
XmlTextWriter xmlWriter = new XmlTextWriter(stringWriter);
xmlDoc.WriteTo(xmlWriter);

MemoryStream stream = new MemoryStream(Encoding.ASCII.GetBytes(stringWriter.ToString()));
stream.Position = 0;
XmlDictionaryReader reader = XmlDictionaryReader.CreateTextReader(stream, new XmlDictionaryReaderQuotas());
MyContact myContact = (MyContact)ser.ReadObject(reader, true);

关于.net - 使用 DataContractSerializer 在 WCF 中序列化和反序列化 XmlDocument，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/879774/