序列化

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序列化分为序列化和反序列化。

作用是：可以持久化一个对象、可以方便安全地传输。

是保存状态的一种选择。

第一、创建一个对象，代码如下：（一定要加上[Serializable]这个特性）

 1  [Serializable] 2     class Person 3     { 4         private string name; 5  6         public string Name 7         { 8             get { return name; } 9             set { name = value; }10         }11         private int age;12 13         public int Age14         {15             get { return age; }16             set { age = value; }17         }18     }

第二、把对象序列化到文件上，代码如下：

 1  #region 序列化 2             Person p = new Person(); 3             p.Name = "zhanglong"; 4             p.Age = 34; 5             System.Runtime.Serialization.Formatters.Binary.BinaryFormatter bf = new System.Runtime.Serialization.Formatters.Binary.BinaryFormatter(); 6             using (FileStream fs = new FileStream("sb.txt", FileMode.Create)) 7             { 8                 bf.Serialize(fs, p); 9             } 10  #endregion11 12  #region 反序列化13             System.Runtime.Serialization.Formatters.Binary.BinaryFormatter fd = new System.Runtime.Serialization.Formatters.Binary.BinaryFormatter();14             using (FileStream fs = new FileStream("sb.txt", FileMode.Open))15             {16                 object obj = fd.Deserialize(fs);17                 Person p1 = obj as Person;18                 Console.WriteLine(p1.Name + ":" + p1.Age);19             } 20 #endregion

第三、把对象序列化到内存上，代码如下：

 1  ///   <summary> 2         ///   序列化为二进制字节数组 3         ///   </summary> 4         ///   <param   name="request">要序列化的对象</param> 5         ///   <returns>字节数组</returns> 6         private static byte[] SerializeBinary(object request) 7         { 8             System.Runtime.Serialization.Formatters.Binary.BinaryFormatter serializer = 9                 new System.Runtime.Serialization.Formatters.Binary.BinaryFormatter();10             System.IO.MemoryStream memStream = new System.IO.MemoryStream();11             serializer.Serialize(memStream, request);12             return memStream.GetBuffer();13         }14 15         ///   <summary>16         ///   从二进制数组反序列化得到对象17         ///   </summary>18         ///   <param   name="buf">字节数组</param>19         ///   <returns>得到的对象</returns>20         private static object DeserializeBinary(byte[] buf)21         {22             System.IO.MemoryStream memStream = new MemoryStream(buf);23             memStream.Position = 0;24             System.Runtime.Serialization.Formatters.Binary.BinaryFormatter deserializer =25                 new System.Runtime.Serialization.Formatters.Binary.BinaryFormatter();26             object newobj = deserializer.Deserialize(memStream);27             memStream.Close();28             return newobj;29         }

第四、借助序列化（用到第三的方法），对象、字符串互换，代码如下：

 1  /// <summary> 2         /// 对象转换成字符串 3         /// </summary> 4         /// <param name="Obj">对象</param> 5         /// <returns></returns> 6         private static string Object2String(object Obj) 7         { 8             StringBuilder sb = new StringBuilder(); 9             byte[] ByteObject = SerializeBinary(Obj);10             foreach (byte b in ByteObject)11             {12                 sb.Append(((int) b).ToString());13                 sb.Append(",");14             }15             return sb.Remove(sb.Length - 1, 1).ToString();16         }17 18         /// <summary>19         /// 字符串转换成对象20         /// </summary>21         /// <param name="Value">字符串</param>22         /// <returns></returns>23         private static object String2Object(string Value)24         {25             string[] V = Value.Split(new char[] {','}, StringSplitOptions.RemoveEmptyEntries);26             byte[] ByteObject = new byte[V.Length];27             for (int i = 0; i < ByteObject.Length; i++)28             {29                 ByteObject[i] = Convert.ToByte(V[i]);30             }31             return DeserializeBinary(ByteObject);32         }

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