Question

我想序列化/反序列化已经从程序集加载的另一个对象实例化的对象：

Interfaces.cs（来自引用的程序集，Interfaces.dll）

public interface ISomeInterface
{
 ISettings Settings { get; set; }
}

public interface ISettings : ISerializable
{
 DateTime StartDate { get; }
}

SomeClass.cs（来自引用的程序集，SomeClass.dll）

public class SomeClass : ISomeInterface
{
 private MySettings settings = new Settings();

 public ISettings Settings
 {
  get { return (ISettings)settings; }
  set { settings = value as MySettings; }
 }
}

[Serializable]
public class MySettings : ISettings
{
 private DateTime dt;

 public MySettings() { dt = DateTime.Now; }

 protected MySettings(SerializationInfo info, StreamingContext context)
 {
  dt = info.GetDateTime("dt");
 }

 [SecurityPermissionAttribute(SecurityAction.Demand, SerializationFormatter = true)]
 public void GetObjectData(SerializationInfo info, StreamingContext context)
 {
  info.AddValue("dt", dt);
 }

 public DateTime StartDate
 {
  get { return startFrom; }
  internal set { startFrom = value; }
 }
}

启动项目：

[Serializable]
public class ProgramState
}
 public ISettings Settings { get; set; }
}

在启动项目中，最终我将ProgramState实例的Settings设置为SomeClass的Settings。然后我继续使用：

进行序列化

public void SerializeState(string filename, ProgramState ps)
{
 Stream s = File.Open(filename, FileMode.Create);
 BinaryFormatter bFormatter = new BinaryFormatter();
 bFormatter.Serialize(s, ps);
 s.Close();
}

这不会引发任何异常。我反序列化：

public ProgramState DeserializeState(string filename)
{
 if (File.Exists(filename))
 {
  ProgramState res = new ProgramState();
  Stream s = File.Open(filename, FileMode.Open);
  BinaryFormatter bFormatter = new BinaryFormatter();
  try
  {
   res = (ProgramState)bFormatter.Deserialize(s);
  }
  catch (SerializationException se)
  {
   Debug.WriteLine(se.Message);
  }
  s.Close();
  return res;
 }
 else return new ProgramState();
}

这会抛出异常，我的Debug输出中会出现以下内容：

类型＆＃39; System.Runtime.Serialization.SerializationException＆＃39;的第一次机会异常。发生在mscorlib.dll中无法找到程序集＆＃39; SomeClass，Version = 1.0.0.0，Culture = neutral，PublicKeyToken = null＆＃39;。

我确定在调用DeserializeState之前已经加载了包含SomeClass的程序集，那么为什么它会抛出一个无法找到它的异常？

我一直在查看一些教程，但是我能够找到的只能处理同一个程序集中的类（另外，我对.NET中序列化和反序列化过程的理解很少 - 一个链接到详细解释可能会有帮助。）

与此同时，有没有办法让MySettings对象正确反序列化？

Answer 1

在探索了一些之后（即谷歌搜索答案），我能够解决这个问题。这是修改后的代码：

Interfaces.cs（来自引用的程序集，Interfaces.dll）

public interface ISomeInterface
{
 ISettings Settings { get; set; }
}

public interface ISettings
{
 DateTime StartDate { get; }
}

SomeClass.cs（来自引用的程序集，SomeClass.dll）

public class SomeClass : ISomeInterface
{
 private MySettings settings = new Settings();

 public ISettings Settings
 {
  get { return (ISettings)settings; }
  set { settings = value as MySettings; }
 }
}

[Serializable]
public class MySettings : ISettings
{
 private DateTime dt;

 public MySettings() { dt = DateTime.Now; }

 public DateTime StartDate
 {
  get { return startFrom; }
  internal set { startFrom = value; }
 }
}

序列化完成：

public void SerializeState(string filename, ProgramState ps)
{
 Stream s = File.Open(filename, FileMode.Create);
 BinaryFormatter bFormatter = new BinaryFormatter();
 bFormatter.AssemblyFormat =
    System.Runtime.Serialization.Formatters.FormatterAssemblyStyle.Simple;
 bFormatter.Serialize(s, ps);
 s.Close();
}

反序列化：

public ProgramState DeserializeState(string filename)
{
 if (File.Exists(filename))
 {
  ProgramState res = new ProgramState();
  Stream s = File.Open(filename, FileMode.Open);
  BinaryFormatter bFormatter = new BinaryFormatter();
  bFormatter.AssemblyFormat =
    System.Runtime.Serialization.Formatters.FormatterAssemblyStyle.Simple;
  bFormatter.Binder = new MyBinder(); // MyBinder class code given below
  try
  {
   res = (ProgramState)bFormatter.Deserialize(s);
  }
  catch (SerializationException se)
  {
   Debug.WriteLine(se.Message);
  }
  s.Close();
  return res;
 }
 else return new ProgramState();
}

此课程已添加。这是二进制格式化程序的绑定程序：

internal sealed class MyBinder : SerializationBinder
{
 public override Type BindToType(string assemblyName, string typeName)
 {
  Type ttd = null;
  try
  {
   string toassname = assemblyName.Split(',')[0];
   Assembly[] asmblies = AppDomain.CurrentDomain.GetAssemblies();
   foreach (Assembly ass in asmblies)
   {
    if (ass.FullName.Split(',')[0] == toassname)
    {
     ttd = ass.GetType(typeName);
     break;
    }
   }
  }
  catch (System.Exception e)
  {
   Debug.WriteLine(e.Message);
  }
  return ttd;
 }
}

Answer 2

你想（二）使用二进制格式序列化吗？ 如果没有，您可以使用以下内容：

P.S。这不是解决方案，而是某种解决方法。

一些装配

公共接口ISomeInterface { ISettings设置{get;组; } }

public interface ISettings : ISerializable
{
    DateTime StartDate { get; }
}

public class SerializeHelper<T>
{
    public static void Serialize(string path, T item)
    {
        var serializer = new XmlSerializer(typeof(T));
        using (TextWriter textWriter = new StreamWriter(path, false, Encoding.UTF8))
        {
            serializer.Serialize(textWriter, T item);
        }
    }
}

SerializeHelper.Serialize(@"%temp%\sample.xml", instanceOfISomeInterface);

其他一些装配

public interface ISomeOtherInterface
{
ISettings Settings { get; set; }
}

public class DeSerializeHelper<T>
{
    public static T Deserialize(string path)
    {
   T instance = default(T);
   var serializer = new XmlSerializer(typeof(TestData));
   using (TextReader r = new StreamReader(path, Encoding.UTF8))
   {
      instance = (T)serializer.Deserialize(r);
   }
   return instance;
    }
}

ISomeOtherInterface instance = DeSerializeHelper.Deserialize<SomeOtherInterfaceImplementation>(@"%temp%\sample.xml")

如何序列化/反序列化从另一个程序集加载的对象？

2 个答案: