quicklib json序列

quicklib json序列

quicklib面向MODEL的JSON序列。

unit Unit2;
/// <author>cxg 2022-6-14</author>
interface

uses
  quick.Json.Serializer, Quick.MemoryCache.Serializer.Json,
  System.Generics.Collections,
  Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
  Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls;

type
  TPerson = class
  private
    FName: string;
    FAge: integer;
  published
    property Name: string read FName write FName;
    property Age: Integer read FAge write FAge;
  end;

  TPersonList = TObjectList<TPerson>;
 // TPersonArr = TArray<TPerson>;

  TPersons = class
  private
    FPersons: TPersonList;
  public
    constructor Create;
    destructor Destroy; override;
  published
    property Persons: TPersonList read FPersons write FPersons;
  end;

type
  TForm2 = class(TForm)
    Button1: TButton;
    Memo1: TMemo;
    Button2: TButton;
    Button3: TButton;
    Button4: TButton;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure FormCreate(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure Button4Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form2: TForm2;

implementation

{$R *.dfm}

procedure TForm2.Button1Click(Sender: TObject);
//obj2json
begin
  var a: TPerson := TPerson.Create;
  a.Name := '张三';
  a.Age := 8;
  var b: TPerson := TPerson.Create;
  b.Name := '李四';
  b.Age := 88;
  var p: TPersons := TPersons.Create;
  p.Persons.Add(a);
  p.Persons.Add(b);
  var serial: TJsonSerializer := TJsonSerializer.Create(slPublishedProperty);
  Memo1.Lines.Add(serial.ObjectToJson(p)); //{"Persons":[{"Name":"\u5F20\u4E09","Age":8},{"Name":"\u674E\u56DB","Age":88}]}
  p.Free;
  serial.Free;
end;

{ TPersons }

constructor TPersons.Create;
begin
  FPersons := TPersonList.Create(True);
end;

destructor TPersons.Destroy;
begin
  FPersons.Free;
  inherited;
end;

procedure TForm2.Button2Click(Sender: TObject);
//json2obj
begin
  var p: TPersons := TPersons.Create;
  var serial: TJsonSerializer := TJsonSerializer.Create(slPublishedProperty);
  serial.JsonToObject(p, Memo1.Text);
  for var a: TPerson in p.Persons do
    Memo1.Lines.Add(a.Name);     //张三 李四
  serial.Free;
  p.Free;
end;

procedure TForm2.Button3Click(Sender: TObject);
begin
  var a: TPerson := TPerson.Create;
  a.Name := '张三';
  a.Age := 8;
  var b: TPerson := TPerson.Create;
  b.Name := '李四';
  b.Age := 88;
  var p: TArray<TObject>;
  SetLength(p, 2);
  p[0] := a;
  p[1] := b;
  var s: TCacheJsonSerializer := TCacheJsonSerializer.Create;
  Memo1.Lines.Add(s.Serialize(p));
  s.Free;
end;

procedure TForm2.Button4Click(Sender: TObject);
begin
  var s: TCacheJsonSerializer := TCacheJsonSerializer.Create;
  var p: TArray<TObject>;
  s.Deserialize(Memo1.Text, p);
  for var i := 0 to 1 do
    Memo1.Lines.Add(TPerson(p[i]).Name);
  s.Free;
end;

procedure TForm2.FormCreate(Sender: TObject);
begin
  Memo1.Clear;
end;

end.