在.NET中使用Newtonsoft.Json转换,读取,写入

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using Newtonsoft.Json;
Newtonsoft.Json.Converters;

//把Json字符串反序列化为对象
目标对象= JavaScriptConvert.DeserializeObject(JSON字符串,typeof (目标对象));
//把目标对象序列化为Json字符串
  1. string Json字符串 = JavaScriptConvert.SerializeObject(目标对象);

1 .引用Newtonsoft.Json.dll
2.在项目中添加引用..
序列化和反序列在.net项目中:

  1. Product product = new Product();
  1. product.Name = "Apple";
  1. product.Expiry = new DateTime(2008,12,28);
  1. product.Price = 3.99M;
  1. product.Sizes = new string[] { "Small","Medium","Large" };
  1. string output = JavaScriptConvert.SerializeObject(product);
  1. //{
  1. // "Name": "Apple",
  1. // "Expiry": new Date(1230422400000),
  1. // "Price": 3.99,
  1. // "Sizes": [
  1. // "Small",
  1. // "Medium",
  1. // "Large"
  1. // ]
  1. //}
  1. Product deserializedProduct = (Product)JavaScriptConvert.DeserializeObject(output,typeof(Product));

读取JSON

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

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

JSON写入

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

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