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在C#中,序列化是将对象转换为可以存储或传输的格式的过程,而反序列化则是将这种格式的数据转换回对象的过程。常用的序列化格式包括JSON、XML和二进制等。下面是一些常用的方法和示例代码:
使用Newtonsoft.Json
库(也称为Json.NET)是最常见的做法。
你可以通过NuGet包管理器安装:
Install-Package Newtonsoft.Json
using Newtonsoft.Json;
using System;
public class Person
{
public string Name { get; set; }
public int Age { get; set; }
}
class Program
{
static void Main()
{
Person person = new Person { Name = "John Doe", Age = 30 };
// 序列化
string jsonString = JsonConvert.SerializeObject(person);
Console.WriteLine(jsonString); // 输出: {"Name":"John Doe","Age":30}
}
}
using Newtonsoft.Json;
using System;
public class Person
{
public string Name { get; set; }
public int Age { get; set; }
}
class Program
{
static void Main()
{
string jsonString = "{\"Name\":\"John Doe\",\"Age\":30}";
// 反序列化
Person person = JsonConvert.DeserializeObject<Person>(jsonString);
Console.WriteLine($"Name: {person.Name}, Age: {person.Age}"); // 输出: Name: John Doe, Age: 30
}
}
使用System.Xml.Serialization
命名空间中的类。
using System;
using System.IO;
using System.Xml.Serialization;
public class Person
{
public string Name { get; set; }
public int Age { get; set; }
}
class Program
{
static void Main()
{
Person person = new Person { Name = "John Doe", Age = 30 };
// 序列化
XmlSerializer serializer = new XmlSerializer(typeof(Person));
using (StringWriter writer = new StringWriter())
{
serializer.Serialize(writer, person);
string xmlString = writer.ToString();
Console.WriteLine(xmlString);
}
}
}
using System;
using System.IO;
using System.Xml.Serialization;
public class Person
{
public string Name { get; set; }
public int Age { get; set; }
}
class Program
{
static void Main()
{
string xmlString = "<Person><Name>John Doe</Name><Age>30</Age></Person>";
// 反序列化
XmlSerializer serializer = new XmlSerializer(typeof(Person));
using (StringReader reader = new StringReader(xmlString))
{
Person person = (Person)serializer.Deserialize(reader);
Console.WriteLine($"Name: {person.Name}, Age: {person.Age}"); // 输出: Name: John Doe, Age: 30
}
}
}
使用System.IO.BinaryFormatter
类。
using System;
using System.IO;
using System.Runtime.Serialization.Formatters.Binary;
[Serializable]
public class Person
{
public string Name { get; set; }
public int Age { get; set; }
}
class Program
{
static void Main()
{
Person person = new Person { Name = "John Doe", Age = 30 };
// 序列化
BinaryFormatter formatter = new BinaryFormatter();
using (FileStream stream = new FileStream("person.bin", FileMode.Create))
{
formatter.Serialize(stream, person);
}
}
}
using System;
using System.IO;
using System.Runtime.Serialization.Formatters.Binary;
[Serializable]
public class Person
{
public string Name { get; set; }
public int Age { get; set; }
}
class Program
{
static void Main()
{
// 反序列化
BinaryFormatter formatter = new BinaryFormatter();
using (FileStream stream = new FileStream("person.bin", FileMode.Open))
{
Person person = (Person)formatter.Deserialize(stream);
Console.WriteLine($"Name: {person.Name}, Age: {person.Age}"); // 输出: Name: John Doe, Age: 30
}
}
}
请注意,BinaryFormatter
在.NET Core和.NET 5+中已被弃用,建议使用其他序列化方法,如JSON或XML。
选择哪种序列化方法取决于你的具体需求,例如数据格式、性能要求和兼容性等。
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