SoapFormatter in .NET Core 3.1？

Question

如何将以下c# 4.8框架迁移到.NET Core3.1？

守则是：

public enum E { V }
[Serializable]
public class Person
{
    public E my_enum;
    public bool my_bool;
}
[...]
Person p = new Person();
using (FileStream fs = new FileStream("myfile.soap", FileMode.Create))
{
    SoapFormatter f = new SoapFormatter();
    f.Serialize(fs, p);
    fs.Close();
}

请给我所期望的：

<SOAP-ENV:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:clr="http://schemas.microsoft.com/soap/encoding/clr/1.0" SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
<SOAP-ENV:Body>
<a1:Person id="ref-1" xmlns:a1="http://schemas.microsoft.com/clr/nsassem/ConsoleApp/ConsoleApp%2C%20Version%3D1.0.0.0%2C%20Culture%3Dneutral%2C%20PublicKeyToken%3Dnull">
<my_enum>V</my_enum>
<my_bool>false</my_bool>
</a1:Person>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>

阅读后：

• https://learn.microsoft.com/en-us/dotnet/standard/serialization/how-to-serialize-an-object-as-a-soap-encoded-xml-stream

以及：

• https://learn.microsoft.com/en-us/dotnet/standard/serialization/attributes-that-control-encoded-soap-serialization

还包括：

• https://github.com/dotnet/corefx/pull/15352

我试过：

static void Main(string[] args)
{
    Person p = new Person();
    using (FileStream fs = new FileStream("myfile.soap", FileMode.Create))
    {
        XmlTypeMapping myTypeMapping = new SoapReflectionImporter()
          .ImportTypeMapping(typeof(Person));
        XmlSerializer mySerializer = new XmlSerializer(myTypeMapping);
        mySerializer.Serialize(fs, p);
        fs.Close();
    }
}

这给了我：

<?xml version="1.0"?>
<Person xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" id="id1">
  <my_enum xsi:type="E">V</my_enum>
  <my_bool xsi:type="xsd:boolean">false</my_bool>
</Person>

Answer 1

这取决于您要修复的部分；如果是名称空间:告诉XmlSerializer关于它们的信息

// note: this would be [XmlType(...)] if it wasn't the root element
[XmlRoot(Namespace = "http://schemas.microsoft.com/clr/nsassem/ConsoleApp/ConsoleApp%2C%20Version%3D1.0.0.0%2C%20Culture%3Dneutral%2C%20PublicKeyToken%3Dnull")]
public class Person
{
    [XmlElement(Namespace = "")]
    public E my_enum;
    [XmlElement(Namespace = "")]
    public bool my_bool;
}

如果是名称空间-别名(尽管这不会改变含义)：

XmlSerializerNamespaces ns = new XmlSerializerNamespaces();
ns.Add("a1", "http://schemas.microsoft.com/clr/nsassem/ConsoleApp/ConsoleApp%2C%20Version%3D1.0.0.0%2C%20Culture%3Dneutral%2C%20PublicKeyToken%3Dnull");
XmlSerializer mySerializer = new XmlSerializer(typeof(Person));
mySerializer.Serialize(fs, p, ns);

如果是包装节点:您需要添加这些节点，可能是通过类型添加，可能是手动修改。

但是，从根本上说，XmlSerializer和SoapFormatter并不是1:1可互换的，您不应该试图使它们成为可互换的。老实说，把它看作是一个基本的序列化开关，比尝试破解它要安全得多，直到它起作用为止。