C#使用NewtonSoft操作Json
阿新 • • 發佈:2019-02-18
using Newtonsoft.Json; using Newtonsoft.Json.Linq; using System.Collections.Generic; using System.Data; using Newtonsoft.Json.Converters; namespace Dd.Utility { public static class JsonHelper { /// <summary> /// Json To Object /// </summary> /// <param name="json">Json</param> /// <returns>Object</returns> public static object ToObjct(this string json) { return json == null ? null : JsonConvert.DeserializeObject(json); } /// <summary> /// Object To Json /// </summary> /// <param name="obj">Object</param> /// <returns>Json</returns> public static string ToJson(this object obj) { return JsonConvert.SerializeObject(obj); } /// <summary> /// Json To Object T /// </summary> /// <typeparam name="T"></typeparam> /// <param name="Json"></param> /// <returns></returns> public static T ToObject<T>(this string json) { return json == null ? default(T) : JsonConvert.DeserializeObject<T>(json); } /// <summary> /// Json To List /// </summary> /// <typeparam name="T"></typeparam> /// <param name="Json"></param> /// <returns></returns> public static List<T> ToList<T>(this string json) { return json == null ? null : JsonConvert.DeserializeObject<List<T>>(json); } /// <summary> /// Json To Table /// </summary> /// <param name="Json"></param> /// <returns></returns> public static DataTable JsonToTable(this string json) { return json == null ? null : JsonConvert.DeserializeObject<DataTable>(json); } /// <summary> /// Table To Json /// </summary> /// <param name="dataTable"></param> /// <returns></returns> public static string TableToJson(this DataTable dataTable) { IsoDateTimeConverter timeFormat = new IsoDateTimeConverter(); timeFormat.DateTimeFormat = "yyyy-MM-dd HH:mm:ss"; return dataTable == null ? "" : JsonConvert.SerializeObject(dataTable, new DataTableConverter(), timeFormat); } } }
var user = new { id = "", name = "", sex = "", age = "" }; user = JsonConvert.DeserializeAnonymousType("{\"id\":\"1\",\"name\":\"張三\",\"sex\":\"男\",\"age\":\"18\"}", user); Console.WriteLine(user.id + " " + user.name + " " + user.sex + " " + user.age); //輸出結果:1 張三 男 18 ///////////////////////////////////////////////////////////////////////////////// var userList = new[] { new { id = "1", name = "張三", sex = "男", age = "18" }, new { id = "2", name = "李四", sex = "女", age = "17" } }; //匿名序列化集合 string userSerialize = JsonConvert.SerializeObject(userList); Console.WriteLine(userSerialize); //輸出結果:[{"id":"1","name":"張三","sex":"男","age":"18"},{"id":"2","name":"李四","sex":"女","age":"17"}] //匿名反序列化集合 var userDeserialize = JsonConvert.DeserializeAnonymousType(userSerialize, new[] { new { id = "", name = "", sex = "", age = "" } }); foreach (var userTemp in userDeserialize) { Console.Write(userTemp.id + " " + userTemp.name + " " + userTemp.sex + " " + userTemp.age+" | "); } //輸出結果:1 張三 男 18 | 2 李四 女 17 | ///////////////////////////////////////////////////////////////////////////////// JArray jArrayUser = JArray.Parse("[{\"id\":\"1\",\"name\":\"張三\",\"sex\":\"男\",\"age\":\"18\"},{\"id\":\"2\",\"name\":\"李四\",\"sex\":\"女\",\"age\":\"17\"}]"); foreach (JObject jUser in jArrayUser) { Console.Write(jUser["id"].ToString() + " " + jUser["name"].ToString() + " " + jUser["sex"].ToString() + " " + jUser["age"].ToString() + " | "); } //輸出結果:1 張三 男 18 | 2 李四 女 17 |