C#对象持久化的三种常用序列化方法总结

// 1. 定义可序列化的类
[Serializable]  // 必须添加此特性
public class People
{
    public string Name { get; set; }
    public int Age { get; set; }
    public string Sex { get; set; }
    public string Birth { get; set; }
}
​
// 2. 序列化过程
public void BinarySerialize()
{
    People people = new People()
    {
        Name = "吴凡",
        Age = 18,
        Sex = "男",
        Birth = "2005-01-01"
    };
​
    // 创建文件流
    using (FileStream fs = new FileStream("people.bin", FileMode.Create))
    {
        BinaryFormatter bf = new BinaryFormatter();
        bf.Serialize(fs, people);  // 将对象写入流
    }
}
​
// 3. 反序列化过程
public void BinaryDeserialize()
{
    using (FileStream fs = new FileStream("people.bin", FileMode.Open))
    {
        BinaryFormatter bf = new BinaryFormatter();
        // 反序列化并转换为People类型
        People people = bf.Deserialize(fs) as People;
        Console.WriteLine($"姓名：{people.Name}，年龄：{people.Age}");
    }
}

{ "Name":"吴凡", "Age":18, "Sex":"男", "Birth":"2005-01-01" }

// 1. 定义数据契约类
using System.Runtime.Serialization;
​
[DataContract]  // 标记为数据契约类
public class People
{
    [DataMember]  // 标记为需序列化的成员
    public string Name { get; set; }
    [DataMember]
    public int Age { get; set; }
    [DataMember]
    public string Sex { get; set; }
    [DataMember]
    public string Birth { get; set; }
}
​
// 2. 序列化
public void JsonSerialize_Native()
{
    People people = new People()
    {
        Name = "吴凡",
        Age = 18,
        Sex = "男",
        Birth = "2005-01-01"
    };
​
    using (FileStream fs = new FileStream("people.json", FileMode.Create))
    {
        DataContractJsonSerializer jsonSerializer = new DataContractJsonSerializer(typeof(People));
        jsonSerializer.WriteObject(fs, people);  // 写入JSON
    }
}
​
// 3. 反序列化
public void JsonDeserialize_Native()
{
    using (FileStream fs = new FileStream("people.json", FileMode.Open))
    {
        DataContractJsonSerializer jsonSerializer = new DataContractJsonSerializer(typeof(People));
        People people = jsonSerializer.ReadObject(fs) as People;  // 读取JSON并转换为对象
        Console.WriteLine($"姓名：{people.Name}，年龄：{people.Age}");
    }
}

using Newtonsoft.Json;
​
// 1. 定义普通类（无需任何特性）
public class People
{
    public string Name { get; set; }
    public int Age { get; set; }
    public string Sex { get; set; }
    public string Birth { get; set; }
}
​
// 2. 序列化
public void JsonSerialize_Newtonsoft()
{
    People people = new People()
    {
        Name = "吴凡",
        Age = 18,
        Sex = "男",
        Birth = "2005-01-01"
    };
​
    // 转换对象为JSON字符串
    string jsonStr = JsonConvert.SerializeObject(people);
    // 写入文件
    File.WriteAllText("people.json", jsonStr);
}
​
// 3. 反序列化
public void JsonDeserialize_Newtonsoft()
{
    // 读取JSON字符串
    string jsonStr = File.ReadAllText("people.json");
    // 转换为对象
    People people = JsonConvert.DeserializeObject<People>(jsonStr);
    Console.WriteLine($"姓名：{people.Name}，年龄：{people.Age}");
}