XML、二进制、SOAP的序列化
2010-02-24 13:45 胖子 阅读(831) 评论(0) 编辑 收藏 举报目的
将对象序列化之后,可以以文件的形式保存下来。
区别
XML | 二进制 | SOAP | |
序列化类 | XmlSerializer | BinaryFormatter | SoapFormatter |
SerializableAttribute 标记 | 不需要 | 需要 | 需要 |
ISerializable 接口 | 不需要 | 需要 | 需要 |
无参构造函数 | 必须有 | 不需要 | 不需要 |
被序列化的数据成员属性 | public | all | all |
序列化后的大小 | 中 | 小 | 大 |
实现
using System; using System.Collections.Generic; using System.IO; using System.Runtime.Serialization.Formatters.Binary; using System.Runtime.Serialization.Formatters.Soap; using System.Xml.Serialization; namespace ConsoleApplication1 { class Program { static void Main( string[] args ) { SerializeByXml(); SerializeByBinary(); SerializeBySoap(); } static void SerializeByXml() { string filePath = @"b:\XmlSerializer.dat"; if( !File.Exists( filePath ) ) { List<Product> list1 = new List<Product>(); for( int i = 1; i <= 10; i++ ) list1.Add( new Product { ProductID = i, ProductName = "产品名称_xml_" + i } ); XmlSerializer xsSerialize = new XmlSerializer(typeof (List<Product>)); using( Stream fsWrite = new FileStream( filePath, FileMode.Create, FileAccess.Write, FileShare.None ) ) { xsSerialize.Serialize( fsWrite, list1 ); fsWrite.Close(); } } List<Product> list2; XmlSerializer xsDeserialize = new XmlSerializer( typeof( List<Product> ) ); using( Stream fsRead = new FileStream( filePath, FileMode.Open, FileAccess.Read, FileShare.None ) ) { list2 = (List<Product>)xsDeserialize.Deserialize( fsRead ); fsRead.Close(); } foreach( Product p in list2 ) { Console.WriteLine( p ); } } static void SerializeByBinary() { string filePath = @"b:\BinarySerializer.dat"; if( !File.Exists( filePath ) ) { List<Product> list1 = new List<Product>(); for( int i = 1; i <= 10; i++ ) list1.Add( new Product { ProductID = i, ProductName = "产品名称_binary_" + i } ); BinaryFormatter xsSerialize = new BinaryFormatter(); using( Stream fsWrite = new FileStream( filePath, FileMode.Create, FileAccess.Write, FileShare.None ) ) { xsSerialize.Serialize( fsWrite, list1 ); fsWrite.Close(); } } List<Product> list2; BinaryFormatter xsDeserialize = new BinaryFormatter(); using( Stream fsRead = new FileStream( filePath, FileMode.Open, FileAccess.Read, FileShare.None ) ) { list2 = (List<Product>)xsDeserialize.Deserialize( fsRead ); fsRead.Close(); } foreach( Product p in list2 ) { Console.WriteLine( p ); } } static void SerializeBySoap() { string filePath = @"b:\SoapSerializer.dat"; if( !File.Exists( filePath ) ) { List<Product> list1 = new List<Product>(); for( int i = 1; i <= 10; i++ ) list1.Add( new Product { ProductID = i, ProductName = "产品名称_soap_" + i } ); SoapFormatter xsSerialize = new SoapFormatter(); using( Stream fsWrite = new FileStream( filePath, FileMode.Create, FileAccess.Write, FileShare.None ) ) { xsSerialize.Serialize( fsWrite, list1.ToArray() ); fsWrite.Close(); } } List<Product> list2; SoapFormatter xsDeserialize = new SoapFormatter(); using( Stream fsRead = new FileStream( filePath, FileMode.Open, FileAccess.Read, FileShare.None ) ) { list2 = new List<Product>( (Product[])xsDeserialize.Deserialize( fsRead ) ); fsRead.Close(); } foreach( Product p in list2 ) { Console.WriteLine( p ); } } } [Serializable] public class Product { public int ProductID { get; set; } public string ProductName { get; set; } public override string ToString() { return string.Format("ProductID:{0}\t\tProductName:{1}", ProductID, ProductName); } } }
注意点
SOAP不能直接序列化List<T>这种类型的集合,但可以序列化数组[],所以序列化List<T>.ToArray()对象;
反序列化时,先强制转换为数组,然后再用数组构造List<T>