网站首页
登录
答题先锋网-做最好的答题器 ----> 适用于Firemonkey的Json解析对象XsuperObject

适用于Firemonkey的Json解析对象XsuperObject

作者:张抱 发布于:2014-3-15 13:14 Saturday 分类:技术

目前Delphi可以用的主流的JSON.org推荐的SuperObject,JSON,Delphi Web Utils,JSON Delphi Library,tiny-json在Windows下基本都没有什么问题,但是在Android平台上就出现了很多问题.而XSuperObject是适用于FileMonkey平台的JSON解析组件,能够在Android,IOS,MACOS,WINDOWS等多个平台使用.
Sample JSON
{
  "name":"Onur YILDIZ", 
  "vip":true,
  "telephones":["000000000","111111111111"],
  "age":24,
  "size":1.72,
  "adresses":[
    {
      "adress":"blabla",
      "city":"Antalya",
      "pc":7160
    },
    {
      "adress":"blabla",
      "city":"Adana",
      "pc":1170
    }
  ]
}

 Delphi Code

var
  X:ISuperObject;
begin
  X :=TSuperObject.Create('{}');
  X.S['name']:='Onur YILDIZ';
  X.B['vip']:=true;
  with X.A['telephones']do
  begin
   Add('000000000');
   Add('111111111111');
  end;
  X.I['age']:=24;
  X.F['size']:=1.72;
  with X.A['adresses'].O[0]{AutoCreate}do
  begin
    S['adress']:='blabla';
    S['city']:='Antalya';
    I['pc']:=7160;
  end;
  // or
  X.A['adresses'].O[1].S['adress']:='blabla';
  X.A['adresses'].O[1].S['city']:='Adana';
  X.A['adresses'].O[1].I['pc']:=1170;

Super Expression
const
  JSON ='{ "o": { '+
         '    "1234567890": {'+
         '    "last use date": "2010-10-17T01:23:20",'+
         '    "create date": "2010-10-17T01:23:20",'+
         '    "name": "iPhone 8s"'+
         '        }'+
         '  },'+
         '  "Index": 0, '+
         '  "Data": {"Index2": 1}, '+
         '  "a": [{'+
         '    "last use date": "2010-10-17T01:23:20",'+
         '    "create date": "2010-11-17T01:23:20",'+
         '    "name": "iPhone 8s",'+
         '    "arr": [1,2,3] '+
         '  }, '+
         '  {'+
         '    message: "hello"'+
         '  }]'+
         '}';

var
  X:ISuperObject;
  NewJSon:ISuperObject;
  NewArray:ISuperArray;
begin
  X := SO(JSON);
  ShowMessage( X['o."1234567890"."last use date"'].AsString);
  ShowMessage( X['a[Index]."create date"'].AsString);
  ShowMessage( X['a[Data.Index2].message'].AsString);
  X['a[0].arr'].AsArray.Add('test1');
  // -----
  NewJSON:= X['{a: a[Index], b: a[Data.Index2].message, c: o."1234567890".name, d: 4, e: a[0].arr[2], f: " :) "}'].AsObject;
  NewArray:= X['[a[Index], a[Data.Index2].message, Data.Index2, Index, 1, "1", "test"]'].AsArray;
end;

Variant
var 
  X:ISuperObject;
begin 
  X :=TSuperObject.Create;
  X.V['A']:=1;
  X.V['B']:='2';
  X.V['C']:=1.3;
  X.V['D']:=False;
  X.V['E']:=Null;
  Memo1.Lines.Add(X.AsJSON);
end;

 

Output

{"A":1,"B":"2","C":1.3,"D":false,"E":null}
Sample 2

const
  JSN ='{ '+
        ' "adresses": [ '+
        '   { '+
        '     "adress": "blabla", '+
        '     "city": "Antalya", '+
        '     "pc": 7160 '+
        '   },'+
        '   { '+
        '     "adress": "blabla", '+
        '     "city": "Adana", '+
        '     "pc": 1170 '+
        '   } '+
        ' ] '+
        '}';
var
  X,Obj:ISuperObject;
  J:Integer;
begin
  X :=TSuperObject.Create(JSN);
  with X.A['adresses']do
    for J :=0 to Lenght-1do
    begin
      Obj:= O[J];
      Obj.First;
      whilenotObj.EoFdo
      begin
         Memo1.Lines.Add(Obj.CurrentKey+' = '+VarToStr(Obj.CurrentValue.AsVariant));
         Obj.Next;
      end;
      Memo1.Lines.Add('------');
    end;
end;

OR (Enumerator)

var
  X:ISuperObject;
  AMember,
  OMember:IMember;
begin
  X :=TSuperObject.Create(JSN);

  forAMemberin X.A['adresses']do
  begin
      forOMemberinAMember.AsObjectdo
          Memo1.Lines.Add(OMember.Name+' = '+OMember.ToString);

      Memo1.Lines.Add('------');
  end;

Output

adress = blabla
city =Antalya
pc =7160
------
adress = blabla
city =Adana
pc =1170
Marshalling

type

  TTestSet=(ttA, ttB, ttC);

  TTestSets=set of TTestSet;
 
  TSubRec= record
    A:Integer;
    B:String; 
  end;

  TSubObj=class
    A:Integer;
    B:Integer; 
  end;  
  
  TTest=class// Field, Property Support
  private
    FB:String;
    FSubObj:TSubObj;
    FSubRec:TSubRec;
    FTestSets:TTestSets;
  public
    A:Integer;
    B:TTestSet;
    C:Boolean;
    property D:String read FB write FB;
    property E:TSubRec read FSubRec write FSubRec;
    property F:TSubObj read FSubObj write FSubObj;
    property G:TTestSets read FTestSets write FTestSets;
  end;
  
  TTestRec= record // Only Field Support
    A:Integer;
    B:TTestSet;
    C:Boolean;
    D:String;
    E:TSubRec;
    F:TSubObj;
    G:TTestSets;
  end;
  
  implementation
  ...
  
  var 
    Parse:TTest;// For Class;
    S:String;
  begin
    Parse:=TTest.FromJSON('{"A": 1, "B": 0, "C": true, "D": "Hello", "E":{"A": 3, "B": "Delphi"}, "F": {"A": 4, "B": 5}, "G": [0,2]}');
    S :=Parse.AsJSON;
  end;
  
  
  ...
  var
    Parse:TTestRec;// For Record;
    S:String;
  begin
    Parse:=TSuperRecord<TTestRec>.FromJSON('{"A": 1, "B": 0, "C": true, "D": "Hello", "E":{"A": 3, "B": "Delphi"}, "F": {"A": 4, "B": 5}, "G": [0,2]}');  
    S :=TSuperRecord<TTestRec>.AsJSON(Parse);
  end;
  
  
标签: Android Delphi FireMonkey JSON解析 XsuperObject superObject « Macbook启动时显示一个带问号的文件夹图标的解决办法。 | 微信/QQ头像透露你的性格,你是哪一种?»

热烈欢迎各位留言,本人会虚心听取各位意见!


sitemap