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使用NewtonSoft.JSON.dll来序列化和发序列化对象

2012-04-24 15:14 746 查看
序列化和反序列在.net项目中:



Productproduct=newProduct();


product.Name="Apple";

product.Expiry=newDateTime(2008,12,28);

product.Price=3.99M;

product.Sizes=newstring[]{"Small","Medium","Large"};


stringoutput=JavaScriptConvert.SerializeObject(product);

//{

//"Name":"Apple",

//"Expiry":newDate(1230422400000),

//"Price":3.99,

//"Sizes":[

//"Small",

//"Medium",

//"Large"

//]

//}


ProductdeserializedProduct=(Product)JavaScriptConvert.DeserializeObject(output,typeof(Product));




读取JSON

stringjsonText="['JSON!',1,true,{property:'value'}]";


JsonReaderreader=newJsonReader(newStringReader(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:

TokenTypeValueTypeValue
StartArraynullnull
StringSystem.StringJSON!
IntegerSystem.Int321
BooleanSystem.BooleanTrue
StartObjectnullnull
PropertyNameSystem.Stringproperty
StringSystem.Stringvalue
EndObjectnullnull
EndArraynullnull

JSON写入

StringWritersw=newStringWriter();

JsonWriterwriter=newJsonWriter(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();


stringjsonText=sw.GetStringBuilder().ToString();


Console.WriteLine(jsonText);

//['JSON!',1,true,{property:'value'}]


这里会打印出:
['JSON!',1,true,{property:'value'}]
.
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