.net core Json字符串的序列化和反序列化通用类源码,Newtonsoft和DataContractJsonSerializer性能对比

我们在开发中Json传输数据日益普遍,有很多关于Json字符串的序列化和反序列化的文章大多都告诉你怎么用,但是却不会告诉你用什么更高效。因为有太多选择,人们往往会陷入选择难题。

相比.NET Framework有三种选择而.net core下已经没有JavaScriptSerializer,但是大家还有两种选择分别如下:

DataContractJsonSerializer

Newtonsoft.Json

因为这两个都有人用,所以我做了完整的对象转换demo进行了测试,这里我不仅和大家讲如何使用,并且还把我自己写的一个转换参与测试并告诉各位怎么测试的。为了节约开发时间,我们把解决方案收入到一个个demo中,方便以后即拿即用。而且这些demo有博客文档支持,帮助任何人非常容易上手开发跨平台的.net core。随着时间的推移,我们的demo库会日益强大请及时收藏GitHub

在讲序列化及反序列化之前先把我们的测试结果分享给大家,十万数据测速比较告诉我们Newtonsoft更高效。

一、首先在Common公用项目中引用Newtonsoft的类库

Install-Package Newtonsoft.Json -Version 12.0.3-beta2

二、在Common公用项目中添加CommonHelper(这里大家想要的转换,根据需要自己拿吧)

#region model<->json(对象和json互转)
        #region DataContractJsonSerializer
        public static string SerializeDataContractJson<T>(T obj)
        {
            DataContractJsonSerializer json = new DataContractJsonSerializer(obj.GetType());
            using (MemoryStream stream = new MemoryStream())
            {
                json.WriteObject(stream, obj);
                string szJson = Encoding.UTF8.GetString(stream.ToArray());
                return szJson;
            }
        }
        public static T DeserializeDataContractJson<T>(string szJson)
        {
            T obj = Activator.CreateInstance<T>();
            using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(szJson)))
            {
                DataContractJsonSerializer serializer = new DataContractJsonSerializer(obj.GetType());
                return (T)serializer.ReadObject(ms);
            }
        }
        #endregion

        #region Newtonsoft
        static public string SerializeJSON<T>(T data)
        {
            return Newtonsoft.Json.JsonConvert.SerializeObject(data);
        }
        static public T DeserializeJSON<T>(string json)
        {
            return Newtonsoft.Json.JsonConvert.DeserializeObject<T>(json);
        }
        #endregion
        #endregion

        #region datatable<->json(datatable和json互转)
        public static string SerializeDataTableToJSON(DataTable dt)
        {
            return Newtonsoft.Json.JsonConvert.SerializeObject(dt);
        }
        public static DataTable SerializeJSONToDataTable(string json)
        {
            return Newtonsoft.Json.JsonConvert.DeserializeObject<DataTable>(json);
        }
        #region 自己写datatable转json用于测试速度对比下
        public static string MyDataTableToJson(DataTable dt)
        {
            StringBuilder JsonString = new StringBuilder();
            if (dt != null && dt.Rows.Count > 0)
            {
                JsonString.Append("{ ");
                JsonString.Append("\"TableInfo\":[ ");
                for (int i = 0; i < dt.Rows.Count; i++)
                {
                    JsonString.Append("{ ");
                    for (int j = 0; j < dt.Columns.Count; j++)
                    {
                        if (j < dt.Columns.Count - 1)
                        {
                            JsonString.Append("\"" + dt.Columns[j].ColumnName.ToString() + "\":" + "\"" + dt.Rows[i][j].ToString() + "\",");
                        }
                        else if (j == dt.Columns.Count - 1)
                        {
                            JsonString.Append("\"" + dt.Columns[j].ColumnName.ToString() + "\":" + "\"" + dt.Rows[i][j].ToString() + "\"");
                        }
                    }
                    if (i == dt.Rows.Count - 1)
                    {
                        JsonString.Append("} ");
                    }
                    else
                    {
                        JsonString.Append("}, ");
                    }
                }
                JsonString.Append("]}");
                return JsonString.ToString();
            }
            else
            {
                return null;
            }
        }
        #endregion
        #endregion

 三、控制器添加Json处理相应方法(我这里整合所有到了HomeController下的Json中了,你们不需要计时,用的时候只需要调用CommonHelper的相关方法即可)

public IActionResult Json()
        {
            List<Article> articleList = new List<Article>();
            for (int x = 0; x < 100000; x++)
            {
                Article article = new Article();
                article.Context = "内容:" + x;
                article.Id = x + 1;
                article.CreateTime = DateTime.Now;
                article.Title = "标题:" + x;
                articleList.Add(article);
            }

            #region 单个对象与json互转
            Article articletest = new Article();
            articletest.Context = "内容";
            articletest.Id = 1;
            articletest.CreateTime = DateTime.Now;
            articletest.Title = "标题";
            string json11 = CommonHelper.SerializeDataContractJson(articletest);
            string json12 = CommonHelper.SerializeJSON(articletest);
            Article article1 = CommonHelper.DeserializeDataContractJson<Article>(json11);
            Article article2 = CommonHelper.DeserializeJSON<Article>(json12);
            #endregion

            #region 记录10万对象集合与json互转用时比较
            //SerializeDataContractJson 10万对象转json
            System.Diagnostics.Stopwatch watch1 = new System.Diagnostics.Stopwatch();
            watch1.Start();  //开始监视代码运行时间
            string json1 = CommonHelper.SerializeDataContractJson(articleList); 
            TimeSpan timespan1 = watch1.Elapsed;  //获取当前实例测量得出的总时间
            watch1.Stop();  //停止监视   
            ViewBag.t1= timespan1.TotalSeconds;

            //Newtonsoft 10万对象转json
            System.Diagnostics.Stopwatch watch2 = new System.Diagnostics.Stopwatch();
            watch2.Start();  
            string json2 = CommonHelper.SerializeJSON(articleList);
            TimeSpan timespan2 = watch2.Elapsed;  
            watch2.Stop();
            ViewBag.t2 = timespan2.TotalSeconds;

            //SerializeDataContractJson 10万json转对象
            System.Diagnostics.Stopwatch watch3 = new System.Diagnostics.Stopwatch();
            watch3.Start();  
            List<Article> list1 = CommonHelper.DeserializeDataContractJson<List<Article>>(json1);
            TimeSpan timespan3 = watch3.Elapsed; 
            watch3.Stop();   
            ViewBag.t3 = timespan3.TotalSeconds;

            //Newtonsoft 10万json转对象
            System.Diagnostics.Stopwatch watch4 = new System.Diagnostics.Stopwatch();
            watch4.Start();  
            List<Article> list2 = CommonHelper.DeserializeJSON<List<Article>>(json2);
            TimeSpan timespan4 = watch4.Elapsed;  
            watch4.Stop();   
            ViewBag.t4 = timespan4.TotalSeconds;

            #endregion

            #region 记录10万datatable与json互转用时比较
            DataTable tblDatas = new DataTable("Datas");
            DataColumn dc = null;
            dc = tblDatas.Columns.Add("ID", Type.GetType("System.Int32"));
            dc.AutoIncrement = true;//自动增加
            dc.AutoIncrementSeed = 1;//起始为1
            dc.AutoIncrementStep = 1;//步长为1
            dc.AllowDBNull = false;//

            dc = tblDatas.Columns.Add("Product", Type.GetType("System.String"));
            dc = tblDatas.Columns.Add("Version", Type.GetType("System.String"));
            dc = tblDatas.Columns.Add("Description", Type.GetType("System.String"));
            for (int x = 0; x < 100000; x++)
            {
                DataRow newRow = tblDatas.NewRow();
                newRow["Product"] = "西游记" + x;
                newRow["Version"] = "" + x;
                newRow["Description"] = x;
                tblDatas.Rows.Add(newRow);
            }

            //Newtonsoft 10万DataTable转json
            System.Diagnostics.Stopwatch watch5 = new System.Diagnostics.Stopwatch();
            watch5.Start();  
            string json5 = CommonHelper.SerializeDataTableToJSON(tblDatas);
            TimeSpan timespan5 = watch5.Elapsed;  
            watch5.Stop(); 
            ViewBag.t5 = timespan5.TotalSeconds;

            //Newtonsoft 10万json转DataTable
            System.Diagnostics.Stopwatch watch6 = new System.Diagnostics.Stopwatch();
            watch6.Start();  
            DataTable dataTable = CommonHelper.SerializeJSONToDataTable(json5);
            TimeSpan timespan6 = watch6.Elapsed; 
            watch6.Stop();  
            ViewBag.t6 = timespan6.TotalSeconds;

            //自己写的  10万DataTable转json
            System.Diagnostics.Stopwatch watch7 = new System.Diagnostics.Stopwatch();
            watch7.Start();  
            string json7 = CommonHelper.MyDataTableToJson(tblDatas);
            TimeSpan timespan7 = watch7.Elapsed; 
            watch7.Stop();    
            ViewBag.t7 = timespan7.TotalSeconds;
            #endregion


            return View();
        }

四、前端设计(这里也没啥设计了,只是做了展示,代码我还是贴出来吧)

    <div style="width:80%;margin:auto;text-align:center;">
        <div class="cover" style="border: 1px solid #D6D6D6;padding: 5px;">
            <h2>10万对象与json互转</h2>
            <span>SerializeDataContractJson:对象集合转json(@ViewBag.t1 秒),json转对象集合(@ViewBag.t3 秒)</span><br />
            <span>Newtonsoft:对象集合转json(@ViewBag.t2 秒),json转对象集合(@ViewBag.t4 秒)</span>
        </div>
        <div class="cover" style="border: 1px solid #D6D6D6;padding: 5px;">
            <h2>10万datatable与json互转</h2>
            <span>Newtonsoft:datatable转json(@ViewBag.t5 秒),json转datatable(@ViewBag.t6 秒)</span><br />
            <span>自己码:datatable转json(@ViewBag.t7 秒)</span>
        </div>
    </div>

五、那么看下效果吧。

开源地址 动动小手,点个推荐吧!

注意:我们机遇屋该项目将长期为大家提供asp.net core各种好用demo,旨在帮助.net开发者提升竞争力和开发速度,建议尽早收藏该模板集合项目

 

.net core Json字符串的序列化和反序列化通用类源码,Newtonsoft和DataContractJsonSerializer性能对比

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