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微软的Serialize和Newtonsoft的SerializeObject比较

微软的序列化反序列化组件出来已有好几年了,刚出来的时候各种吐槽。最近在优化代码,比较了一下微软的Serialize和Newtonsoft的SerializeObject,感觉大部分场景下可以用微软的序列化组件了,Newtonsoft第三方可能被我放弃掉。测试有交换顺序,也有多次测试。

 1 using Newtonsoft.Json;  2 using System;  3 using System.Diagnostics;  4 namespace JsonTest  5 {  6     internal class Program  7     {  8         static void Main(string[] args)  9         { 10             var count = 10_000; 11             var elapsedMilliseconds = Serialize(count, () => 12              { 13                  JsonConvert.SerializeObject(new WeatherForecast 14                  { 15                      Date = DateTime.Now, 16                      Summary = "Hot", 17                      TemperatureCelsius = 88 18                  }); 19              }); 20             Console.WriteLine($"serialize object count:{count}, newtonsoft used: {elapsedMilliseconds} seconds"); 21  22             elapsedMilliseconds = Serialize(count, () => 23             { 24                 System.Text.Json.JsonSerializer.Serialize(new WeatherForecast 25                 { 26                     Date = DateTime.Now, 27                     Summary = "Hot", 28                     TemperatureCelsius = 88 29                 }); 30             }); 31             Console.WriteLine($"serialize object count:{count}, textjson used : {elapsedMilliseconds} seconds"); 32  33             Console.WriteLine("***************************************************"); 34  35             count = 10_000_000; 36             elapsedMilliseconds = Serialize(count, () => 37            { 38                JsonConvert.SerializeObject(new WeatherForecast 39                { 40                    Date = DateTime.Now, 41                    Summary = "Hot", 42                    TemperatureCelsius = 88 43                }); 44            }); 45             Console.WriteLine($"serialize object count:{count}, newtonsoft used: {elapsedMilliseconds} seconds"); 46  47             elapsedMilliseconds = Serialize(count, () => 48             { 49                 System.Text.Json.JsonSerializer.Serialize(new WeatherForecast 50                 { 51                     Date = DateTime.Now, 52                     Summary = "Hot", 53                     TemperatureCelsius = 88 54                 }); 55             }); 56             Console.WriteLine($"serialize object count:{count}, textjson used : {elapsedMilliseconds} seconds"); 57             Console.ReadKey(); 58  59             /* 60              serialize object count:10000, newtonsoft used: 288 seconds 61             serialize object count:10000, textjson used : 45 seconds 62             *************************************************** 63             serialize object count:10000000, newtonsoft used: 10324 seconds 64             serialize object count:10000000, textjson used : 5681 seconds 65              */ 66         } 67  68         static long Serialize(int count, Action action) 69         { 70             Stopwatch stopwatch = Stopwatch.StartNew(); 71             for (int i = count; i > 0; i--) 72             { 73                 action(); 74             } 75             stopwatch.Stop(); 76             var result = stopwatch.ElapsedMilliseconds; 77             stopwatch.Reset(); 78             return result; 79         } 80     } 81     internal class WeatherForecast 82     { 83         public DateTimeOffset Date { get; set; } 84         public int TemperatureCelsius { get; set; } 85         public string Summary { get; set; } 86     } 87 }

 

当然如果加上JsonSerializerOptions,而且全部配置起来性能就会有所下降,毕竟这么多配置在这呢,但是这样也会更加灵活。

微软的Serialize和Newtonsoft的SerializeObject比较

下面是反序列化的例子,速度和序列化比较差不多。

 1 using Newtonsoft.Json;  2 using System;  3 using System.Collections.Generic;  4 using System.Diagnostics;  5 using System.Linq;  6 using System.Text;  7 using System.Threading.Tasks;  8   9 namespace JsonTest 10 { 11     internal class App 12     { 13         static void Main(string[] args) 14         { 15             var jsonStr = "{"Date":"2019 - 08 - 01T00: 00:00 - 07:00","TemperatureCelsius":25,"Summary":"Hot","DatesAvailable":["2019 - 08 - 01T00: 00:00 - 07:00","2019 - 08 - 02T00: 00:00 - 07:00"],"TemperatureRanges":{"Cold":{"High":20,"Low":-10},"Hot":{"High":60,"Low":20}},"SummaryWords":["Cool","Windy","Humid"]}"; 16             var count = 10_000; 17             var elapsedMilliseconds = Derialize(count, () => 18             { 19                 JsonConvert.DeserializeObject<Student>(jsonStr); 20             }); 21             Console.WriteLine($"deserialize object count:{count}, newtonsoft used: {elapsedMilliseconds} seconds"); 22  23             elapsedMilliseconds = Derialize(count, () => 24             { 25                 System.Text.Json.JsonSerializer.Deserialize<Student>(jsonStr); 26             }); 27             Console.WriteLine($"deserialize object count:{count}, textjson used : {elapsedMilliseconds} seconds"); 28  29             Console.WriteLine("***************************************************"); 30  31             count = 10_000_000; 32             elapsedMilliseconds = Derialize(count, () => 33             { 34                 JsonConvert.DeserializeObject<Student>(jsonStr); 35             }); 36             Console.WriteLine($"deserialize object count:{count}, newtonsoft used: {elapsedMilliseconds} seconds"); 37  38             elapsedMilliseconds = Derialize(count, () => 39             { 40                 System.Text.Json.JsonSerializer.Deserialize<Student>(jsonStr); 41             }); 42             Console.WriteLine($"deserialize object count:{count}, textjson used : {elapsedMilliseconds} seconds"); 43             /* 44              deserialize object count:10000, newtonsoft used: 263 seconds 45             deserialize object count:10000, textjson used : 56 seconds 46             *************************************************** 47             deserialize object count:10000000, newtonsoft used: 29726 seconds 48             deserialize object count:10000000, textjson used : 12422 seconds 49  50              */ 51             Console.ReadKey(); 52         } 53         static long Derialize(int count, Action action) 54         { 55             Stopwatch stopwatch = Stopwatch.StartNew(); 56             for (int i = count; i > 0; i--) 57             { 58                 action(); 59             } 60             stopwatch.Stop(); 61             var result = stopwatch.ElapsedMilliseconds; 62             stopwatch.Reset(); 63             return result; 64         } 65  66     } 67  68     internal class Student 69     { 70         public DateTime BarthDay { get; set; } 71         public int Age { get; set; } 72         public string Name { get; set; } 73     } 74 }

 

微软文档里面有各种介绍,不再详述!

 从 Newtonsoft.Json 迁移到 System.Text.Json – .NET | Microsoft Docs

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