C#序列化

序列化操作

using System;using System.IO;using System.Runtime.Serialization.Formatters.Binary;public class BinarySerializer{#region Serialize    public static void SerializeToFile<T>(T obj, string fileDir, string fullName)    {        if(!(Directory.Exists(fileDir)))        {            Directory.CreateDirectory(fileDir);        }        string fullPath = string.Format(@"{0}\{1}", fileDir, fullName);        using(FileStream fs = new FileStream(fullPath, FileMode.OpenOrCreate))        {            BinaryFormatter bf = new BinaryFormatter();            bf.Serialize(fs, obj);            fs.Flush();        }    }    public static string SerializeToString<T>(T obj)    {        using(MemoryStream ms = new MemoryStream())        {            BinaryFormatter bf = new BinaryFormatter();            bf.Serialize(ms, obj);            return System.Text.Encoding.UTF8.GetString(ms.ToArray());        }    }#endregion#region Deserialize    public static T DeserializeFromFile<T>(string path) where T : class    {        using(FileStream fs = new FileStream(path, FileMode.Open))        {            BinaryFormatter bf = new BinaryFormatter();            return bf.Deserialize(fs) as T;        }    }   public static T DeserializeFromString<T>(string content) where T : class   {       byte[] arrBytes = System.Text.Encoding.UTF8.GetBytes(content);       using(MemoryStream ms = new MemoryStream())       {           BinaryFormatter bf = new BinaryFormatter();           return bf.Deserialize(ms) as T;               }   }#endregion}

序列化对象声明

对类使用序列化时，标注那些不需要序列化的字段。 序列化只能针对字段使用。

[Serializable]public class MyClass{    [Noserialized]    public string Temp;    [field:Noserialized]    用于标识event不被序列    public event EventHandler TempChanged;}

使用序列化相关特性

同时还可以利用特性，在序列化，反序列化执行过程中，自动调用指定的方法，进一步处理序列化数据。例如，可以在执行完反序列化后，自动初始化一些字段。
提供的特性有：
* OnDeserializedAttribute
* OnDeserializingAttribute
* OnSerializedAttribute
* OnSerializingAttribute

using System;using System.Runtime.Serialization;[Serializable]public class SerializableObject{    [OnSerializingAttribute]    virtual protected void OnSerializing(StreamingContext context)    {    }    [OnSerializedAttribute]    virtual protected void OnSerialized(StreamingContext context)    {    }    [OnDeserializingAttribute]    virtual protected void OnDeserializing(StreamingContext context)    {    }    [OnDeserializedAttribute]    virtual protected void OnDeserialized(StreamingContext context)    {    }}

深度定制化ISerializable

如果序列化特性不能满足需求，那就需要使用此接口来自定义化序列化操作。甚至可以序列化为另一个对象。
继承了此接口后，序列化特性就不会生效了。

Person p1 = new Person(){FirstName = "Nick", LastName = "Wang"};BinarySerializer.SerializeToFile(p1, Application.dataPath, "person.txt");Person p2 = BinarySerializer.DeserializeFromFile<Person>(System.IO.Path.Combine(Application.dataPath, "person.txt"));Debug.Log(p2.FirstName);

[Serializable]public class Person : ISerializable{    public string FirstName;    public string LastName;    public string ChineseName;    public Person()    {    }    protected Person(SerializationInfo info, StreamingContext context)    {        FirstName = info.GetString("FirstName");        LastName = info.GetString("LastName");        ChineseName = string.Format("{0} {1}", LastName, FirstName);            }    void ISerializable.GetObjectData(SerializationInfo info, StreamingContext context)    {        info.AddValue("FirstName", FirstName);        info.AddValue("LastName", LastName);    }   }

序列化为另一个对象

Person p1 = new Person(){FirstName = "Nick", LastName = "Wang"};        BinarySerializer.SerializeToFile(p1, Application.dataPath, "person.txt");        PersonAnother p2 = BinarySerializer.DeserializeFromFile<PersonAnother>(System.IO.Path.Combine(Application.dataPath, "person.txt"));        Debug.Log(p2.Name);

[Serializable]public class PersonAnother : ISerializable{    public string Name;    public PersonAnother()    {    }    protected PersonAnother(SerializationInfo info, StreamingContext context)    {        Name = info.GetString("Name");    }    void ISerializable.GetObjectData(SerializationInfo info, StreamingContext context)    {    }}[Serializable]public class Person : ISerializable{    public string FirstName;    public string LastName;    public string ChineseName;    public Person()    {    }    protected Person(SerializationInfo info, StreamingContext context)    {                   }    void ISerializable.GetObjectData(SerializationInfo info, StreamingContext context)    {        info.SetType(typeof(PersonAnother));}        info.AddValue("Name", string.Format("{0} {1}", LastName, FirstName));    }   }