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。