使用NewtonSoft.JSON.dll来序列化和反序列化对象

发布时间：2020-12-16 19:24:57 所属栏目：百科来源：网络整理

导读：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: Product product = new Product (); product.Name = "Apple" ; product.Expiry = new DateTime (

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:

 
   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

 
   string jsonText = 
    "['JSON!',1,true,{property:'value'}]"; 
  
   JsonReader reader = 
    new 
   JsonReader( 
   new 
   StringReader(jsonText)); 
  
   Console.WriteLine( 
   "TokenTypettValueTypettValue"); 
  
   while (reader.Read()) 
  
    { 
  
Console.WriteLine(reader.TokenType + 
    "tt"
     + WriteValue(reader.ValueType) + 
   
"tt" + WriteValue(reader.Value)) 
  
    }

结果显示:

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

 
   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'}]

这里会打印出: ['JSON!',{property:'value'}] .

（编辑：李大同）

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