. NET entity classes and JSON conversion _ Practical Tips

When. NET entity classes are converted to JSON, note the main points:
1.jsonhelp the reference added when writing. System.Runtime.Serialization.Json;
2. Entity classes need to 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 ///<summary>///Serializes the object to the JSON string///</summary>///<typeparam name= "T" > Object type </typep aram>///<param name= "obj" > object entity </param>///<returns>json string </returns> public static str ing getjson<t> (T obj) {//Remember to add Reference System.ServiceModel.Web/** * If the above reference is not added, System.Runtime.Serializat Ion. Json;
    JSON doesn't come out. * * * * * * * * * 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>///restores JSON strings to objects  </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 = n
      EW 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 goto 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&l
     T;testdata>> (tlist)); Console.WriteLine (TL.
     Count); Console.WriteLine (Tl[0].
     Name);
    Console.readkey (); }

  }
} 
 

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