C# Json 和对象的相互转换

Json 和对象的相互转换

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/// <summary> /// Json 和对象的相互转换  ——需引用using Newtonsoft.Json;   即：Jsonnet.net..... /// </summary> public static class JsonHelper {     /// <summary>     /// 把对象转换为JSON字符串     /// </summary>     /// <param name="o">对象</param>     /// <returns>JSON字符串</returns>     public static string ObjectToJson(this object o)     {         if (o == null) return null;         return JsonConvert.SerializeObject(o);     }       /// <summary>     /// 把Json文本转为实体     /// </summary>     /// <typeparam name="T"></typeparam>     /// <param name="input"></param>     /// <returns></returns>     public static T JsonToObject<T>(this string input)     {         try         {             return JsonConvert.DeserializeObject<T>(input);         }         catch (Exception ex)         {             return default(T);         }     }   }

使用如下所示：

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private void btnObjToJson_Click(object sender, EventArgs e)       {           List<Test> timePart = new List<Test>();           timePart.Add(new Test { BeginTime = 8.10, EndTime = 8.15 });           timePart.Add(new Test { BeginTime = 8.15, EndTime = 8.25 });           timePart.Add(new Test { BeginTime = 8.26, EndTime = 8.55 });             string json = JsonHelper.ObjectToJson(timePart);           MessageBox.Show("json\r\n==" + json);       }         private void btnJsonToObj_Click(object sender, EventArgs e)       {           List<Test> timePart = new List<Test>();           timePart.Add(new Test { BeginTime = 8.10, EndTime = 8.15 });           timePart.Add(new Test { BeginTime = 8.15, EndTime = 8.25 });           timePart.Add(new Test { BeginTime = 8.26, EndTime = 8.55 });             string json = JsonHelper.ObjectToJson(timePart);             List<Test> list = JsonHelper.JsonToObject<List<Test>>(json);           MessageBox.Show("list==" +list.Count);       }