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使用NewtonSoft.JSON.dll来序列化和反序列化对象

2019-08-14 Json 前端之家

前端之家收集整理的这篇文章主要介绍了使用NewtonSoft.JSON.dll来序列化和反序列化对象，前端之家小编觉得挺不错的，现在分享给大家，也给大家做个参考。

从这里下载: http://www.newtonsoft.com/products/json/
安装:
1 . 解压下载文件,得到Newtonsoft.Json.dll
2.在项目中添加引用..
序列化和反序列在.net项目中:

@H_502_21@

 
   Product product = 
   new 
   Product(); 
  
    product.Name = 
   "Apple"; 
  
    product.Expiry = 
   new 
    DateTime(2008,12,28); 
  
    product.Price = 3.99M; 
  
    product.Sizes = 
   new 
    string[] { 
   "Small", "Medium","Large" }; 
  
   string output = 
   JavaScriptConvert.SerializeObject(product); 
  
   //{ 
  
   // "Name": "Apple", 
  
   // "Expiry": new Date(1230422400000), 
  
   // "Price": 3.99, 
  
   // "Sizes": [ 
  
   // "Small", 
  
   // "Medium", 
  
   // "Large" 
  
   // ] 
  
   //} 
  
Product deserializedProduct = ( 
   Product) 
   JavaScriptConvert
     .DeserializeObject(output,

typeof( 
   Product));

读取JSON

@H_502_21@

 
   string jsonText = 
    "['JSON!',1,true,{property:'value'}]"; 
  
   JsonReader reader = 
    new 
   JsonReader( 
   new 
   StringReader(jsonText)); 
  
   Console.WriteLine( 
   "TokenType\t\tValueType\t\tValue"); 
  
   while (reader.Read()) 
  
    { 
  
Console.WriteLine(reader.TokenType + 
    "\t\t"
     + WriteValue(reader.ValueType) + 
   
"\t\t" + WriteValue(reader.Value)) 
  
    }

结果显示:

TokenType	ValueType	Value
StartArray	null	null
String	System.String	JSON!
Integer	System.Int32	1
Boolean	System.Boolean	True
StartObject	PropertyName	property
value
EndObject	EndArray	null

TokenType

ValueType

Value

StartArray

null

String

System.String

JSON!

Integer

System.Int32

Boolean

System.Boolean

True

StartObject

PropertyName

property

value

EndObject

EndArray

null

JSON写入

@H_502_21@

 
   StringWriter sw = 
   new 
   StringWriter(); 
  
   JsonWriter writer = 
    new 
   JsonWriter(sw); 
  
    writer.WriteStartArray(); 
  
    writer.WriteValue( 
   "JSON!"); 
  
    writer.WriteValue(1); 
  
    writer.WriteValue( 
   true); 
  
    writer.WriteStartObject(); 
  
    writer.WritePropertyName( 
   "property"); 
  
    writer.WriteValue( 
   "value"); 
  
    writer.WriteEndObject(); 
  
    writer.WriteEndArray(); 
  
    writer.Flush(); 
  
   string jsonText = sw.GetStringBuilder().ToString(); 
  
   Console.WriteLine(jsonText); 
  
   // ['JSON!',{property:'value'}]