using System; using System.Collections.Generic; using System.Configuration; using System.IO; using System.Linq; using System.Runtime.Serialization.Formatters.Binary; using System.Runtime.Serialization.Formatters.Soap; using System.Text; using System.Threading.Tasks; using System.Xml.Serialization; namespace IOSerialize.Serialize { public class SerializeHelper { /// <summary> /// 二进制序列化器 /// </summary> public static void BinarySerialize() { //使用二进制序列化对象 string fileName = Path.Combine(Constant.SerializeDataPath, @"BinarySerialize.txt");//文件名称与路径 using (Stream fStream = new FileStream(fileName, FileMode.Create, FileAccess.ReadWrite)) {//需要一个stream,这里是直接写入文件了 List<Programmer> pList = DataFactory.BuildProgrammerList(); BinaryFormatter binFormat = new BinaryFormatter();//创建二进制序列化器 binFormat.Serialize(fStream, pList); } using (Stream fStream = new FileStream(fileName, FileMode.Open, FileAccess.ReadWrite)) {//需要一个stream,这里是来源于文件 BinaryFormatter binFormat = new BinaryFormatter();//创建二进制序列化器 //使用二进制反序列化对象 fStream.Position = 0;//重置流位置 List<Programmer> pList = (List<Programmer>)binFormat.Deserialize(fStream);//反序列化对象 } } /// <summary> /// soap序列化器 /// </summary> public static void SoapSerialize() { //使用Soap序列化对象 string fileName = Path.Combine(Constant.SerializeDataPath, @"SoapSerialize.txt");//文件名称与路径 using (Stream fStream = new FileStream(fileName, FileMode.Create, FileAccess.ReadWrite)) { List<Programmer> pList = DataFactory.BuildProgrammerList(); SoapFormatter soapFormat = new SoapFormatter();//创建二进制序列化器 //soapFormat.Serialize(fStream, list);//SOAP不能序列化泛型对象 soapFormat.Serialize(fStream, pList.ToArray()); } using (Stream fStream = new FileStream(fileName, FileMode.Open, FileAccess.ReadWrite)) { SoapFormatter soapFormat = new SoapFormatter();//创建二进制序列化器 //使用二进制反序列化对象 fStream.Position = 0;//重置流位置 List<Programmer> pList = ((Programmer[])soapFormat.Deserialize(fStream)).ToList();//反序列化对象 } } //BinaryFormatter序列化自定义类的对象时,序列化之后的流中带有空字符,以致于无法反序列化,反序列化时总是报错“在分析完成之前就遇到流结尾”(已经调用了stream.Seek(0, SeekOrigin.Begin);)。 //改用XmlFormatter序列化之后,可见流中没有空字符,从而解决上述问题,但是要求类必须有无参数构造函数,而且各属性必须既能读又能写,即必须同时定义getter和setter,若只定义getter,则反序列化后的得到的各个属性的值都为null。 /// <summary> /// XML序列化器 /// </summary> public static void XmlSerialize() { //使用XML序列化对象 string fileName = Path.Combine(Constant.SerializeDataPath, @"Student.xml");//文件名称与路径 using (Stream fStream = new FileStream(fileName, FileMode.Create, FileAccess.ReadWrite)) { List<Programmer> pList = DataFactory.BuildProgrammerList(); XmlSerializer xmlFormat = new XmlSerializer(typeof(List<Programmer>));//创建XML序列化器,需要指定对象的类型 xmlFormat.Serialize(fStream, pList); } using (Stream fStream = new FileStream(fileName, FileMode.Open, FileAccess.ReadWrite)) { XmlSerializer xmlFormat = new XmlSerializer(typeof(List<Programmer>));//创建XML序列化器,需要指定对象的类型 //使用XML反序列化对象 fStream.Position = 0;//重置流位置 List<Programmer> pList = pList = (List<Programmer>)xmlFormat.Deserialize(fStream); } } /// <summary> /// json也可以的 /// </summary> public static void Json() { List<Programmer> pList = DataFactory.BuildProgrammerList(); string result = JsonHelper.ObjectToString<List<Programmer>>(pList); List<Programmer> pList1 = JsonHelper.StringToObject<List<Programmer>>(result); } } }
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