我想序列化/反序列化一个对象，该对象已被另一个从程序集中加载的对象实例化:

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 实例的设置设置为 SomeClass 的设置。然后我继续使用以下方法进行序列化:

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

这不会抛出任何异常。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();
}

这会引发异常，并且以下内容会出现在我的调试输出中:

在 mscorlib.dll 中发生类型为“System.Runtime.Serialization.SerializationException”的第一次机会异常
找不到程序集“SomeClass，Version=1.0.0.0，Culture=neutral，PublicKeyToken=null”。

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无法找到它的异常？

我一直在看一些教程，但我能找到的那些只处理来自同一个程序集的类(另外，我对 .NET 中的序列化和反序列化过程的理解是最少的 - 一个详细的链接解释可能会有帮助)。

与此同时，是否有任何方法可以正确反序列化 MySettings 对象？

最佳答案

在进一步探索之后(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();
}

已添加此类。这是二进制格式化程序的 Binder :

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;
 }
}

关于c# - 如何序列化/反序列化从另一个程序集加载的对象？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/8183787/