註意要點。 1.jsonhelp編寫時候添加的引用。System.Runtime.Serialization.Json; 2.實體類需聲明為public jsonhelp代碼: 實體類代碼 控制台應用程式測試代碼 在查找資料過程中參考了一下同學的博文 http://www.cnblogs.com/j ...
註意要點。
1.jsonhelp編寫時候添加的引用。System.Runtime.Serialization.Json;
2.實體類需聲明為public
jsonhelp代碼:
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Runtime.Serialization.Json; using System.IO; namespace JsonTest { class JsonHelp { public JsonHelp() { // // TODO: Add constructor logic here // } /// <summary> /// 把對象序列化 JSON 字元串 /// </summary> /// <typeparam name="T">對象類型</typeparam> /// <param name="obj">對象實體</param> /// <returns>JSON字元串</returns> public static string GetJson<T>(T obj) { //記住 添加引用 System.ServiceModel.Web /** * 如果不添加上面的引用,System.Runtime.Serialization.Json; Json是出不來的哦 * */ DataContractJsonSerializer json = new DataContractJsonSerializer(typeof(T)); using (MemoryStream ms = new MemoryStream()) { json.WriteObject(ms, obj); string szJson = Encoding.UTF8.GetString(ms.ToArray()); return szJson; } } /// <summary> /// 把JSON字元串還原為對象 /// </summary> /// <typeparam name="T">對象類型</typeparam> /// <param name="szJson">JSON字元串</param> /// <returns>對象實體</returns> public static T ParseFormJson<T>(string szJson) { T obj = Activator.CreateInstance<T>(); using (MemoryStream ms = new MemoryStream (Encoding.UTF8.GetBytes(szJson))) { DataContractJsonSerializer dcj = new DataContractJsonSerializer(typeof(T)); return (T)dcj.ReadObject(ms); } } } }
實體類代碼
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace JsonTest { public class testData { public testData() { } public int Id { get; set; } public string Name { get; set; } public string Sex { get; set; } } }
控制台應用程式測試代碼
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace JsonTest { class Program { static void Main(string[] args) { //實體類轉json testData t1 = new testData(); t1.Id = 1; t1.Name = "001姓名"; t1.Sex = "男"; testData t2 = new testData(); t2.Id = 2; t2.Name = "002姓名"; t2.Sex = "男"; testData t3 = new testData(); t3.Id = 3; t3.Name = "003姓名"; t3.Sex = "男"; List<testData> tlist = new List<testData>(); tlist.Add(t1); tlist.Add(t2); tlist.Add(t3); Console.WriteLine(JsonHelp.GetJson<List<testData>>(tlist)); // Console.ReadKey(); //json轉實體類 List<testData> tl = JsonHelp.ParseFormJson <List<testData>>(JsonHelp.GetJson<List<testData>>(tlist)); Console.WriteLine(tl.Count); Console.WriteLine(tl[0].Name); Console.ReadKey(); } } }
在查找資料過程中參考了一下同學的博文
http://www.cnblogs.com/jinho/archive/2010/04/18/1715044.html
http://blog.csdn.net/wang_cel/article/details/44587201