c#序列化与发序列化之protobuf-net篇

c#中的序列化是指将对象写入流的过程,反序列话是指将对象从流中读取的过程。

protobuf-net：

Protobuf是google开源的一个项目，用户数据序列化反序列化，google声称google的数据通信都是用该序列化方法。它比xml格式要少的多，甚至比二进制数据格式也小的多。

Protobuf格式协议和xml一样具有平台独立性，可以在不同平台间通信，通信所需资源很少，并可以扩展，可以旧的协议上添加新数据

 

ProtobufHelper类

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using ProtoBuf;

namespace Protobuf_Ne
{
    class ProtobufHelper
    {
        /// <summary>
        /// 序列化
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="path">文件地址</param>
        /// <param name="t">数据集合</param>
        public static void Serialize<T>( string path,T t)
        {
            //写入本地文件
            using (Stream file = File.Create(path))
            {
                Serializer.Serialize<T>(file, t);
                file.Close();
            }
            //写入内存
            //using (MemoryStream ms = new MemoryStream())
            //{
            //    Serializer.Serialize<T>(ms, t);
            //    Serializer.Serialize<T>(file, t); 
            //    return Encoding.UTF8.GetString(ms.ToArray());
            //}
        }
        /// <summary>
        /// 反序列化
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="path">文件地址</param>
        /// <returns></returns>
        public static T DeSerialize<T>(string path)
        {
            using (Stream file = File.OpenRead(path))
            {
                return Serializer.Deserialize<T>(file);
            }
            //读取内存中的数据
            //using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(content)))
            //{
            //    T t = Serializer.Deserialize<T>(ms);
            //    return t;
            //}
        }
    }
}

//简单实例

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
using ProtoBuf;
using System.Web.Script.Serialization;
using Newtonsoft.Json;
namespace Protobuf_Ne
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
             List<User> list = new List<User>(); 
            for (int i = 0; i < 1000; i++) 
            { 
                list.Add(new User() { UserID = i, UserName = "u" + i.ToString() }); 
            }

            //json 
            string path2 = AppDomain.CurrentDomain.BaseDirectory + "json.txt"; 
            JavaScriptSerializer jss = new System.Web.Script.Serialization.JavaScriptSerializer(); 
            string json = jss.Serialize(list);
            File.WriteAllText(path2, json);

            //protobuff 
            string path = AppDomain.CurrentDomain.BaseDirectory + "protobuf.txt";
            ProtobufHelper.Serialize(path,list);
        }

        [ProtoContract]
        public class User
        {
            [ProtoMember(1, IsRequired = true)]
            public int UserID { get; set; }

            [ProtoMember(2, IsRequired = true)]
            public string UserName { get; set; }

        }

        private void button1_Click(object sender, EventArgs e)
        {
            string path = AppDomain.CurrentDomain.BaseDirectory + "protobuf.txt"; 
            List<User> list2 = new List<User>();
            list2 = ProtobufHelper.DeSerialize<List<User>>(path);
            foreach (User u in list2)
            {
              textBox1.Text+= string.Format("UserID={0}, UserName={1}", u.UserID, u.UserName)+"\r\n";
            }
        } 
    

    }
}

结果：