(精华)2020年8月12日 C#基础知识点 序列化反序列化(XML，Json，二进制，soap)
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);
}
}
public class JsonHelper
{<!-- -->
#region Json
/// <summary>
/// JavaScriptSerializer
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="obj"></param>
/// <returns></returns>
public static string ObjectToString<T>(T obj)
{<!-- -->
JavaScriptSerializer jss = new JavaScriptSerializer();
return jss.Serialize(obj);
}
/// <summary>
/// JavaScriptSerializer
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="content"></param>
/// <returns></returns>
public static T StringToObject<T>(string content)
{<!-- -->
JavaScriptSerializer jss = new JavaScriptSerializer();
return jss.Deserialize<T>(content);
}
/// <summary>
/// JsonConvert.SerializeObject
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="obj"></param>
/// <returns></returns>
public static string ToJson<T>(T obj)
{<!-- -->
return JsonConvert.SerializeObject(obj);
}
/// <summary>
/// JsonConvert.DeserializeObject
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="content"></param>
/// <returns></returns>
public static T ToObject<T>(string content)
{<!-- -->
return JsonConvert.DeserializeObject<T>(content);
}
#endregion Json
}
/// <summary>
/// 使用序列化器完成的
/// </summary>
public class XmlHelper
{<!-- -->
/// <summary>
/// XmlSerializer序列化实体为字符串
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <returns></returns>
public static string ToXml<T>(T t) where T : new()
{<!-- -->
XmlSerializer xmlSerializer = new XmlSerializer(t.GetType());
Stream stream = new MemoryStream();
xmlSerializer.Serialize(stream, t);
stream.Position = 0;
StreamReader reader = new StreamReader(stream);
string text = reader.ReadToEnd();
return text;
}
/// <summary>
/// 字符串序列化成XML
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="content"></param>
/// <returns></returns>
public static T ToObject<T>(string content) where T : new()
{<!-- -->
using (MemoryStream stream = new MemoryStream(System.Text.Encoding.UTF8.GetBytes(content)))
{<!-- -->
XmlSerializer xmlFormat = new XmlSerializer(typeof(T));
return (T)xmlFormat.Deserialize(stream);
}
}
/// <summary>
/// 文件反序列化成实体
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="fileName"></param>
/// <returns></returns>
public static T FileToObject<T>(string fileName) where T : new()
{<!-- -->
string CurrentXMLPath = ConfigurationManager.AppSettings["CurrentXMLPath"];
fileName = Path.Combine(CurrentXMLPath, @"Student.xml");
using (Stream fStream = new FileStream(fileName, FileMode.Open, FileAccess.ReadWrite))
{<!-- -->
XmlSerializer xmlFormat = new XmlSerializer(typeof(T));
return (T)xmlFormat.Deserialize(fStream);
}
}
}
