Json.Net 用法

首先用最基本的JsonTextWriter和JsonTextReader
JsonTextWriter使用成對的方法來輸出Json字串
JsonTextReader使用Read方法來持續讀取Json字串
看得出來在使用上有點拖泥帶水

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static void Main(string[] args) {     string jsonString = string.Empty;       using (StringWriter sw = new StringWriter())     {         using (JsonTextWriter writer = new JsonTextWriter(sw))         {             // 開始輸出物件             writer.WriteStartObject();               // 輸出屬性:id             writer.WritePropertyName("id");             writer.WriteValue(1);               // 輸出屬性:name             writer.WritePropertyName("name");             writer.WriteValue("xian");               // 輸出屬性today             writer.WritePropertyName("today");             writer.WriteValue(DateTime.Today);               // 開始輸出陣列             writer.WritePropertyName("arraydata");             writer.WriteStartArray();             writer.WriteValue(1);             writer.WriteValue(2);             writer.WriteValue(3);               // 結束輸出陣列             writer.WriteEndArray();               // 結束串出物件             writer.WriteEndObject();         }           jsonString = sw.ToString();         Console.WriteLine(jsonString);     }       using (StringReader sr = new StringReader(jsonString))     {         using (JsonTextReader reader = new JsonTextReader(sr))         {             while (reader.Read())             {                 if (reader.Value != null)                 {                     Console.WriteLine("token:{0}, value:{1}", reader.TokenType, reader.Value);                 }                 else                 {                     Console.WriteLine("token:{0}", reader.TokenType);                 }             }         }     }       Console.ReadLine(); }

執行結果

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使用JObject可以簡化一點

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// 淮備Json資料 JObject obj1 = new JObject() {     new JProperty("id", 1),     new JProperty("name", "xian"),     new JProperty("today", DateTime.Today),     new JProperty("arraydata",     new JArray()     {         new JValue(1),         new JValue(2),         new JValue(3),     }) };   string jsonString = obj1.ToString(); Console.WriteLine(jsonString);   // 解析Json格式 JObject obj2 = JObject.Parse(jsonString); Console.WriteLine(     "id:{0}, name:{1}, today:{2}, arraydata:{3}",     obj2["id"],     obj2["name"],     obj2["today"],     obj2["arraydata"]); Console.ReadLine();

執行結果

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最常使用還是JsonConvert這一個方式，用法也很直覺

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// 淮備資料 Person p1 = new Person() {     id = 1,     name = "xian",     today = DateTime.Today };   // 序列化物件 string jsonString = JsonConvert.SerializeObject(p1); Console.WriteLine("jsonstring:{0}", jsonString);   // 反序列化物件 Person p2 = JsonConvert.DeserializeObject<Person>(jsonString); Console.WriteLine("id:{0}, name:{1}, today:{2}", p2.id, p2.name, p2.today);   Console.ReadLine();

執行結果

from : http://blog.developer.idv.tw/2013/06/jsonnet.html