類對象序列化(反序列化)成xml文件或者二進制文件到本地文件方法

以前序列化實體對象到本地文件時，總要寫一大堆xml語句來構建xml，偶然發現還可以用系統提供的方法來實現。並且還有序列化成二進制的方法。本人整理和歸納了一下，xml序列化和反序列化，二進制序列化和反序列化可以用下來的方法來實現:

 

/// <summary> /// 將類的對象序列化後保存到本地xml文件 /// </summary> /// <param name="entityObj">一個對象</param> /// <param name="fileName">本地xml文件路徑</param> public void XmlSerialize(object entityObj, string fileName) { using (System.IO.FileStream stream = new System.IO.FileStream(fileName, System.IO.FileMode.Create)) { System.Xml.Serialization.XmlSerializer serializer = new System.Xml.Serialization.XmlSerializer(entityObj.GetType()); serializer.Serialize(stream, entityObj); } } /// <summary> /// 讀取序列化後保存在本地的xml文件成一個對象 /// </summary> /// <param name="filename"></param> /// <param name="entityType"></param> /// <returns></returns> public object XmlDeserialize(string filename, Type entityType) { object obj = null; using (System.IO.FileStream stream = new System.IO.FileStream(filename, System.IO.FileMode.Open, System.IO.FileAccess.Read, System.IO.FileShare.Read)) { System.Xml.Serialization.XmlSerializer serializer = new System.Xml.Serialization.XmlSerializer(entityType); obj = serializer.Deserialize(stream); } return obj; } /// <summary> /// 將對象序列化成二進制文件保存到本地 /// </summary> /// <param name="obj">對象</param> /// <param name="fileName">二進制文件路徑</param> public static void BinSerialize(object obj, string fileName) { using (System.IO.Stream strm = new System.IO.FileStream(fileName, System.IO.FileMode.OpenOrCreate, System.IO.FileAccess.Write, System.IO.FileShare.None)) { System.Runtime.Serialization.IFormatter fmt = new System.Runtime.Serialization.Formatters.Binary.BinaryFormatter(); fmt.Serialize(strm, obj); strm.Flush(); } } /// <summary> /// 將序列化的二進制文件反序列化成一個對象 /// </summary> /// <param name="fileName"></param> /// <returns></returns> public static object BinDeserialize(string fileName) { object obj = null; using (System.IO.Stream strm = new System.IO.FileStream(fileName, System.IO.FileMode.Open, System.IO.FileAccess.Read, System.IO.FileShare.None)) { System.Runtime.Serialization.IFormatter fmt = new System.Runtime.Serialization.Formatters.Binary.BinaryFormatter(); obj = fmt.Deserialize(strm); } return obj; }

對於要序列化成二進制文件的實體類，必須在實體類定義時加一個[Serializable]屬性：

[Serializable] public class Person { public String Name {get;set;} public Image Photo {get;set;} }

 

 

對於要序列化成xml文件的實體類，如果其中有些屬性不想序列化，則在類裏相應的屬性上面加一個屬性，如，不想序列化Person類的Photo屬性可以加一個[System.Xml.Serialization.XmlIgnore]屬性：

public class Person { public String Name {get;set;} [System.Xml.Serialization.XmlIgnore] public Image Photo {get;set;} }