C# XML序列化和反序列化

原文：http://www.cnblogs.com/nhxy/archive/2010/11/16/1878409.html

本文描述如何使用CLR中的StringWriter,XmlSerializer将对象, 对象集合序列化为Xml格式的字符串, 同时描述如何进行反序列化。看代码就能理解，直接上代码了：

案例1：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Xml;
using System.Xml.Serialization;  namespace ConsoleApplication1
{  class SimpleSerializer  {  /// <summary>  /// 序列化对象  /// </summary>  /// <typeparam name="T">对象类型</typeparam>  /// <param name="t">对象</param>  /// <returns></returns>  public static string Serialize<T>(T t)  {  using (StringWriter sw = new StringWriter())  {  XmlSerializer xz = new XmlSerializer(t.GetType());  xz.Serialize(sw, t);  return sw.ToString();  }  }  /// <summary>  /// 反序列化为对象  /// </summary>  /// <param name="type">对象类型</param>  /// <param name="s">对象序列化后的Xml字符串</param>  /// <returns></returns>  public static object Deserialize(Type type, string s)  {  using (StringReader sr = new StringReader(s))  {  XmlSerializer xz = new XmlSerializer(type);  return xz.Deserialize(sr);  }  }  }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml.Serialization;  namespace ConsoleApplication1
{  [Serializable]  public class UserInfo  {  private int m_UserId;  [XmlElement("userId")]  public int UserId  {  get { return m_UserId; }  set { m_UserId = value; }  }  private string m_UserName;  [XmlElement("userName")]  public string UserName  {  get { return m_UserName; }  set { m_UserName = value; }  }  }
}

using System;
using System.Collections.Generic;  namespace ConsoleApplication1
{  class Program  {  static void Main(string[] args)  {  TestOne();  Console.WriteLine();  TestTwo();  Console.WriteLine();  TestThree();  Console.WriteLine();  TestFour();  Console.ReadLine();  }  public static void TestOne()  {  UserInfo info = new UserInfo() { UserId = 1, UserName = "Guozhijian" };  Console.WriteLine(SimpleSerializer.Serialize<UserInfo>(info));  }  public static void TestTwo()  {  List<UserInfo> list = new List<UserInfo>();  list.Add(new UserInfo() { UserId = 1, UserName = "Guozhijian" });  list.Add(new UserInfo() { UserId = 2, UserName = "Zhenglanzhen" });  Console.WriteLine(SimpleSerializer.Serialize<List<UserInfo>>(list));  }  public static void TestThree()  {  string s = SimpleSerializer.Serialize<UserInfo>(new UserInfo() { UserId = 1, UserName = "Guozhijian" });  UserInfo info = SimpleSerializer.Deserialize(typeof(UserInfo), s) as UserInfo;  Console.WriteLine(info.UserId.ToString() + ", " + info.UserName);  }  public static void TestFour()  {  List<UserInfo> list = new List<UserInfo>();  list.Add(new UserInfo() { UserId = 1, UserName = "Guozhijian" });  list.Add(new UserInfo() { UserId = 2, UserName = "Zhenglanzhen" });  string s = SimpleSerializer.Serialize<List<UserInfo>>(list);  List<UserInfo> newList = SimpleSerializer.Deserialize(typeof(List<UserInfo>), s) as List<UserInfo>;  foreach (var info in newList)  {  Console.WriteLine(info.UserId.ToString() + ", " + info.UserName);  }  }  }
}

运行结果：

案例2：

using System;
using System.Collections.Generic;
using System.Text;  namespace SimpleSerialize
{  [Serializable]  public class Radio  {  public bool hasTweeters;  public bool hasSubWoofers;  public double[] stationPresets;  [NonSerialized]  public string radioID = "XF-552RR6";  }
}

[Serializable]public class Car{public Radio theRadio = new Radio();public bool isHatchBack;}[Serializable, XmlRoot(Namespace = "http://www.intertech.com")]public class JamesBondCar : Car{[XmlAttribute] public bool canFly;[XmlAttribute] public bool canSubmerge;public JamesBondCar(bool skyWorthy, bool seaWorthy){canFly = skyWorthy;canSubmerge = seaWorthy;}// The XmlSerializer demands a default constructor!  public JamesBondCar(){}}

using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Runtime.Serialization.Formatters.Binary;
using System.Runtime.Serialization.Formatters.Soap;
using System.Xml.Serialization;  namespace SimpleSerialize
{  class Program  {  static void Main(string[] args)  {  Console.WriteLine("***** Fun with Object Serialization *****\n");  // Make a JamesBondCar and set state.  JamesBondCar jbc = new JamesBondCar();  jbc.canFly = true;  jbc.canSubmerge = false;  jbc.theRadio.stationPresets = new double[] { 89.3, 105.1, 97.1 };  jbc.theRadio.hasTweeters = true;  // Now save / Load the car to a specific file.  SaveAsBinaryFormat(jbc, "CarData.dat");  LoadFromBinaryFile("CarData.dat");  SaveAsSoapFormat(jbc, "CarData.soap");  SaveAsXmlFormat(jbc, "CarData.xml");  SaveListOfCars();  SaveListOfCarsAsBinary();  LoadAsXmlFormat(jbc, "CarData.xml");  Console.ReadLine();  }  #region Save / Load as Binary Format  static void SaveAsBinaryFormat(object objGraph, string fileName)  {  // Save object to a file named CarData.dat in binary.  BinaryFormatter binFormat = new BinaryFormatter();  using (Stream fStream = new FileStream(fileName,  FileMode.Create, FileAccess.Write, FileShare.None))  {  binFormat.Serialize(fStream, objGraph);  }  Console.WriteLine("=> Saved car in binary format!");  }  static void LoadFromBinaryFile(string fileName)  {  BinaryFormatter binFormat = new BinaryFormatter();  // Read the JamesBondCar from the binary file.  using (Stream fStream = File.OpenRead(fileName))  {  JamesBondCar carFromDisk =  (JamesBondCar)binFormat.Deserialize(fStream);  Console.WriteLine("Can this car fly? : {0}", carFromDisk.canFly);  }  }  #endregion  #region Save as SOAP Format  // Be sure to import System.Runtime.Serialization.Formatters.Soap   // and reference System.Runtime.Serialization.Formatters.Soap.dll.  static void SaveAsSoapFormat(object objGraph, string fileName)  {  // Save object to a file named CarData.soap in SOAP format.  SoapFormatter soapFormat = new SoapFormatter();  using (Stream fStream = new FileStream(fileName,  FileMode.Create, FileAccess.Write, FileShare.None))  {  soapFormat.Serialize(fStream, objGraph);  }  Console.WriteLine("=> Saved car in SOAP format!");  }  #endregion  #region Save as XML Format  static void SaveAsXmlFormat(object objGraph, string fileName)  {  // Save object to a file named CarData.xml in XML format.  XmlSerializer xmlFormat = new XmlSerializer(typeof(JamesBondCar),  new Type[] { typeof(Radio), typeof(Car) });  using (Stream fStream = new FileStream(fileName,  FileMode.Create, FileAccess.Write, FileShare.None))  {  xmlFormat.Serialize(fStream, objGraph);  }  Console.WriteLine("=> Saved car in XML format!");  }  #endregion  #region Load as XML Format  static void LoadAsXmlFormat(object objGraph, string fileName)  {  XmlSerializer a = new XmlSerializer(objGraph.GetType());  using (StreamReader fStream = new StreamReader(fileName))  {  JamesBondCar b = a.Deserialize(fStream) as JamesBondCar;  Console.WriteLine("=> Loaded car in XML format!");  Console.WriteLine("Can this car fly? : {0}", b.canFly);  }  }  #endregion  #region Save collection of cars  static void SaveListOfCars()  {  // Now persist a List<> of JamesBondCars.  List<JamesBondCar> myCars = new List<JamesBondCar>();  myCars.Add(new JamesBondCar(true, true));  myCars.Add(new JamesBondCar(true, false));  myCars.Add(new JamesBondCar(false, true));  myCars.Add(new JamesBondCar(false, false));  using (Stream fStream = new FileStream("CarCollection.xml",  FileMode.Create, FileAccess.Write, FileShare.None))  {  XmlSerializer xmlFormat = new XmlSerializer(typeof(List<JamesBondCar>),  new Type[] { typeof(JamesBondCar), typeof(Car), typeof(Radio) });  xmlFormat.Serialize(fStream, myCars);  }  Console.WriteLine("=> Saved list of cars!");  }  static void SaveListOfCarsAsBinary()  {  // Save ArrayList object (myCars) as binary.  List<JamesBondCar> myCars = new List<JamesBondCar>();  BinaryFormatter binFormat = new BinaryFormatter();  using (Stream fStream = new FileStream("AllMyCars.dat",  FileMode.Create, FileAccess.Write, FileShare.None))  {  binFormat.Serialize(fStream, myCars);  }  Console.WriteLine("=> Saved list of cars in binary!");  }  #endregion  }
}

运行结果：

好了，祝进步。

每天进步一点点。

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