. NET entity classes and JSON transformations (. NET self-bringing class library implementations)

Note the main points.

The reference that was added when 1.jsonhelp was written. System.Runtime.Serialization.Json;

2. Entity classes must be declared 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>//Serializing the object JSON string </summary>//<typeparam name= "T" > Object type </typeparam>//<param name= "obj" > object entity &LT;/PA ram>//<returns>json strings </returns> public static string getjson<t> (T obj) {//Remember to add a citation With System.ServiceModel.Web/** * If not add the above reference, System.Runtime.Serialization.Json;        JSON is not out 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>///To restore the JSON string to an object///</summary>//<typeparam name= "T" > Object type </typepa ram>//<param name= "Szjson" >json strings </param>///<returns> Object entities </returns> public Stati        C 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 Class 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) {//entity 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 (); JSON to entity class list<testdata> TL = Jsonhelp.parseformjson <List<testData>> (jsonhelp.getjson<list&        Lt;testdata>> (tlist)); Console.WriteLine (TL.         Count); Console.WriteLine (Tl[0].         Name);        Console.readkey (); }    }}

In the process of finding information, reference to the classmate's blog

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

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

. NET entity classes and JSON transformations (. NET self-bringing class library implementations)