. Net object class and json conversion (. net built-in class library implementation), json.net

. Net object class and json conversion (. net built-in class library implementation), json.net

Important points.

1. Reference added during jsonhelp writing. System. Runtime. Serialization. Json;

2. The object class must be declared as public.

Jsonhelp code:

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> // serialize the object to a JSON string /// </summary> /// <typeparam name = "T"> Object type </typeparam> /// <param name = "obj"> Object entity </param> /// <returns> JSON string </returns> public static string GetJson <T> (T obj) {// remember to add reference System. serviceModel. web/*** if you do not add the above reference, System. runtime. serialization. json; Json is the bytes of the Oh **/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> /// restore the JSON string to an object // </summary> /// <typeparam name = "T"> Object Type </typeparam>/ // <param name = "szJson"> JSON string </param> // <returns> Object entity </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 );}}}}

Entity code

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; }    }}

Console Application Test code

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) {// convert the object class to json testData t1 = new testData (); t1.Id = 1; t1.Name = "001 name"; t1.Sex = "male"; testData t2 = new testData (); t2.Id = 2; t2.Name = "002 name"; t2.Sex = "male "; testData t3 = new testData (); t3.Id = 3; t3.Name = "003 name"; t3.Sex = "male"; List <testData> tlist = new List <testData> (); tlist. add (t1); tlist. add (t2); tlist. add (t3); Console. writeLine (JsonHelp. getJson <List <testData> (tlist); // Console. readKey (); // List of object classes converted from json to <testData> tl = JsonHelp. parseFormJson <List <testData> (JsonHelp. getJson <List <testData> (tlist); Console. writeLine (tl. count); Console. writeLine (tl [0]. name); Console. readKey ();}}}

When searching for information, I found my blog posts.

Http://www.cnblogs.com/jinho/archive/2010/04/18/1715044.html

Http://blog.csdn.net/wang_cel/article/details/44587201