带有C#对象的前缀和名称空间_C#_Xml_Prefix Tree

带有C#对象的前缀和名称空间

c# xml

带有C#对象的前缀和名称空间,c#,xml,prefix-tree,C#,Xml,Prefix Tree,我试图创建一个POST函数，将C#类对象序列化为XML 我遇到的最大困难是向子根元素的子元素添加名称空间前缀，因此在本例中，contactchildren only 我似乎能够将前缀添加到contact的子元素上的唯一方法是通过SerializerNamespace类添加它们，但是我只能将其附加到根元素CreateContact 我怎样才能做到这一点当前生成的XML: <?xml version=\"1.0\"?> <CreateContact xmlns:a="http:/

我试图创建一个POST函数，将C#类对象序列化为XML

我遇到的最大困难是向子根元素的子元素添加名称空间前缀，因此在本例中，

contact

children only

我似乎能够将前缀添加到

contact

的子元素上的唯一方法是通过

SerializerNamespace

类添加它们，但是我只能将其附加到根元素

CreateContact

我怎样才能做到这一点

当前生成的XML:

<?xml version=\"1.0\"?>
<CreateContact xmlns:a="http://foo.co.uk/Contact" xmlns="http://foo.co.uk">
<a:contact>
<a:Email>stest@gmail.com</a:Email>
<a:FirstName>Simon</a:FirstName>
<a:LastName>Test</a:LastName>
<a:Phone>09088408501</a:Phone>
<a:Title>Mr</a:Title>
</a:contact>
</CreateContact>

public static void CreateContact(Contact contact)
{
    string tmp = url;
    string xml = "";
    string result = "";

    XmlDocument xd = new XmlDocument();

    var cc = new CreateContact();
    cc.contact = contact;
    var xs = new XmlSerializer(cc.GetType());

    XmlSerializerNamespaces xsn = new XmlSerializerNamespaces();
    xsn.Add("a", "http://foo.co.uk/Contact");

    using (MemoryStream ms = new MemoryStream())
    {
    xs.Serialize(ms, cc, xsn);
    ms.Position = 0;
    xd.Load(ms);
    xml = xd.InnerXml;
    }

    using (WebClient web = new WebClient())
    {
    web.Credentials = new NetworkCredential(username, password);
    web.Headers.Add("Content-Type", "application/xml");
    try
    {
        result = web.UploadString(tmp, "POST", xml);
    }
    catch (WebException ex)
    {
    }
    }
}

[Serializable()]
[XmlRoot(ElementName = "CreateContact", Namespace = "http://foo.co.uk")]
public class CreateContact
{
    [XmlElement(ElementName = "contact", Namespace = "http://foo.co.uk/Contact")]
    public Contact contact { get; set; }
}

[DataContract(Name = "Contact", Namespace = "http://foo.co.uk/Contact")]
[XmlType("a")]
public class Contact
{
    [XmlElement(ElementName = "Email", Namespace = "http://foo.co.uk/Contact")]
    [DataMember(Name = "Email")]
    public string Email { get; set; }
    [XmlElement(ElementName = "FirstName", Namespace = "http://foo.co.uk/Contact")]
    [DataMember(Name = "FirstName")]
    public string Firstname { get; set; }
    [XmlElement(ElementName = "LastName", Namespace = "http://foo.co.uk/Contact")]
    [DataMember(Name = "LastName")]
    public string Lastname { get; set; }
    [XmlElement(ElementName = "Phone", Namespace = "http://foo.co.uk/Contact")]
    [DataMember(Name = "Phone")]
    public string Phone { get; set; }
    [XmlElement(ElementName = "Title", Namespace = "http://foo.co.uk/Contact")]
    [DataMember(Name = "Title")]
    public string Title { get; set; }
}

<?xml version=\"1.0\"?>
<CreateContact  xmlns="http://foo.co.uk">
<contact xmlns:a="http://foo.co.uk/Contact">
<a:Email>stest@gmail.com</a:Email>
<a:FirstName>Simon</a:FirstName>
<a:LastName>Test</a:LastName>
<a:Phone>09088408501</a:Phone>
<a:Title>Mr</a:Title>
</contact>
</CreateContact>

XML类构造：

<?xml version=\"1.0\"?>
<CreateContact xmlns:a="http://foo.co.uk/Contact" xmlns="http://foo.co.uk">
<a:contact>
<a:Email>stest@gmail.com</a:Email>
<a:FirstName>Simon</a:FirstName>
<a:LastName>Test</a:LastName>
<a:Phone>09088408501</a:Phone>
<a:Title>Mr</a:Title>
</a:contact>
</CreateContact>

public static void CreateContact(Contact contact)
{
    string tmp = url;
    string xml = "";
    string result = "";

    XmlDocument xd = new XmlDocument();

    var cc = new CreateContact();
    cc.contact = contact;
    var xs = new XmlSerializer(cc.GetType());

    XmlSerializerNamespaces xsn = new XmlSerializerNamespaces();
    xsn.Add("a", "http://foo.co.uk/Contact");

    using (MemoryStream ms = new MemoryStream())
    {
    xs.Serialize(ms, cc, xsn);
    ms.Position = 0;
    xd.Load(ms);
    xml = xd.InnerXml;
    }

    using (WebClient web = new WebClient())
    {
    web.Credentials = new NetworkCredential(username, password);
    web.Headers.Add("Content-Type", "application/xml");
    try
    {
        result = web.UploadString(tmp, "POST", xml);
    }
    catch (WebException ex)
    {
    }
    }
}

[Serializable()]
[XmlRoot(ElementName = "CreateContact", Namespace = "http://foo.co.uk")]
public class CreateContact
{
    [XmlElement(ElementName = "contact", Namespace = "http://foo.co.uk/Contact")]
    public Contact contact { get; set; }
}

[DataContract(Name = "Contact", Namespace = "http://foo.co.uk/Contact")]
[XmlType("a")]
public class Contact
{
    [XmlElement(ElementName = "Email", Namespace = "http://foo.co.uk/Contact")]
    [DataMember(Name = "Email")]
    public string Email { get; set; }
    [XmlElement(ElementName = "FirstName", Namespace = "http://foo.co.uk/Contact")]
    [DataMember(Name = "FirstName")]
    public string Firstname { get; set; }
    [XmlElement(ElementName = "LastName", Namespace = "http://foo.co.uk/Contact")]
    [DataMember(Name = "LastName")]
    public string Lastname { get; set; }
    [XmlElement(ElementName = "Phone", Namespace = "http://foo.co.uk/Contact")]
    [DataMember(Name = "Phone")]
    public string Phone { get; set; }
    [XmlElement(ElementName = "Title", Namespace = "http://foo.co.uk/Contact")]
    [DataMember(Name = "Title")]
    public string Title { get; set; }
}

<?xml version=\"1.0\"?>
<CreateContact  xmlns="http://foo.co.uk">
<contact xmlns:a="http://foo.co.uk/Contact">
<a:Email>stest@gmail.com</a:Email>
<a:FirstName>Simon</a:FirstName>
<a:LastName>Test</a:LastName>
<a:Phone>09088408501</a:Phone>
<a:Title>Mr</a:Title>
</contact>
</CreateContact>

所需的XML:

<?xml version=\"1.0\"?>
<CreateContact xmlns:a="http://foo.co.uk/Contact" xmlns="http://foo.co.uk">
<a:contact>
<a:Email>stest@gmail.com</a:Email>
<a:FirstName>Simon</a:FirstName>
<a:LastName>Test</a:LastName>
<a:Phone>09088408501</a:Phone>
<a:Title>Mr</a:Title>
</a:contact>
</CreateContact>

public static void CreateContact(Contact contact)
{
    string tmp = url;
    string xml = "";
    string result = "";

    XmlDocument xd = new XmlDocument();

    var cc = new CreateContact();
    cc.contact = contact;
    var xs = new XmlSerializer(cc.GetType());

    XmlSerializerNamespaces xsn = new XmlSerializerNamespaces();
    xsn.Add("a", "http://foo.co.uk/Contact");

    using (MemoryStream ms = new MemoryStream())
    {
    xs.Serialize(ms, cc, xsn);
    ms.Position = 0;
    xd.Load(ms);
    xml = xd.InnerXml;
    }

    using (WebClient web = new WebClient())
    {
    web.Credentials = new NetworkCredential(username, password);
    web.Headers.Add("Content-Type", "application/xml");
    try
    {
        result = web.UploadString(tmp, "POST", xml);
    }
    catch (WebException ex)
    {
    }
    }
}

[Serializable()]
[XmlRoot(ElementName = "CreateContact", Namespace = "http://foo.co.uk")]
public class CreateContact
{
    [XmlElement(ElementName = "contact", Namespace = "http://foo.co.uk/Contact")]
    public Contact contact { get; set; }
}

[DataContract(Name = "Contact", Namespace = "http://foo.co.uk/Contact")]
[XmlType("a")]
public class Contact
{
    [XmlElement(ElementName = "Email", Namespace = "http://foo.co.uk/Contact")]
    [DataMember(Name = "Email")]
    public string Email { get; set; }
    [XmlElement(ElementName = "FirstName", Namespace = "http://foo.co.uk/Contact")]
    [DataMember(Name = "FirstName")]
    public string Firstname { get; set; }
    [XmlElement(ElementName = "LastName", Namespace = "http://foo.co.uk/Contact")]
    [DataMember(Name = "LastName")]
    public string Lastname { get; set; }
    [XmlElement(ElementName = "Phone", Namespace = "http://foo.co.uk/Contact")]
    [DataMember(Name = "Phone")]
    public string Phone { get; set; }
    [XmlElement(ElementName = "Title", Namespace = "http://foo.co.uk/Contact")]
    [DataMember(Name = "Title")]
    public string Title { get; set; }
}

<?xml version=\"1.0\"?>
<CreateContact  xmlns="http://foo.co.uk">
<contact xmlns:a="http://foo.co.uk/Contact">
<a:Email>stest@gmail.com</a:Email>
<a:FirstName>Simon</a:FirstName>
<a:LastName>Test</a:LastName>
<a:Phone>09088408501</a:Phone>
<a:Title>Mr</a:Title>
</contact>
</CreateContact>


stest@gmail.com
西蒙
试验
09088408501
先生

正如注释中所暗示的，差异的原因是

联系人应位于命名空间http://foo.co.uk
，而不是http://foo.co.uk/Contact

另外，还有几点意见：

您可能不需要DataMember
属性，除非您在其他地方使用DataContractSerializer
大多数Xml*
属性在这里是多余的，可以通过继承XmlRoot
来删除或合并
如果您只需要XML字符串，那么最好将其序列化为StringWriter
之类的东西，而不是流，然后加载到DOM中以获取文本（请参见是否需要XML声明来指定utf-8
）

因此，您将得到如下XML：
var xsn = new XmlSerializerNamespaces();
xsn.Add("a", "http://foo.co.uk/Contact");

var xs = new XmlSerializer(typeof(CreateContact));

using (var stringWriter = new StringWriter())
{
    xs.Serialize(stringWriter, cc, xsn);
    xml = stringWriter.ToString();
}

将您的类定义为：
[XmlRoot(ElementName = "CreateContact", Namespace = "http://foo.co.uk")]
public class CreateContact
{
    [XmlElement(ElementName = "contact")]
    public Contact Contact { get; set; }
}

[XmlRoot("contact", Namespace = "http://foo.co.uk/Contact")]
public class Contact
{
    public string Email { get; set; }
    public string FirstName { get; set; }
    public string LastName { get; set; }
    public string Phone { get; set; }
    public string Title { get; set; }
}

请参阅以获取完整的示例。
这两个名称空间在语义上是等价的-您是否确实需要移动名称空间声明？我怀疑这在没有手动序列化代码或序列化后对XML进行后处理的情况下是可能的，您的联系人
元素实际上在http://foo.co.uk
namespace-这真的是你想要的吗？@CharlesMager:它们有细微的不同-contact元素在OP所需的XML中位于不同的名称空间中，但我怀疑这是一个错误…@JonSkeet-whoops，好球。我承认我略过了一点！Charles&Jon—这不是一个错误，这就是我在提供的API文档中请求XML的方式。我的印象是（当然我错了）前缀是不必要的，并且子元素将拾取父元素的名称空间，除非另有说明。更好的解释，谢谢。我示例中的数据成员是遗留的，必须存在，但我无法让它们在POST情况下工作