Delphi Xe10,json Generation and parsing, then utilizes indyhttp control POST__JS

--not much, directly on the code
Procedure Tfrmmain.brand;
Var
Jsonobject, Jsonparam:tjsonobject; JSON class
Jsonarray:tjsonarray; JSON array variable
I:integer;
Flag_do:boolean;

Jsontosend:tstringstream;
Jsonstr, rjsonstr:string;
Rjsonobject, Rjsondata, Rjsonlistobjitem:tjsonobject; JSON class
Rjsonarray:tjsonarray; JSON array variable
Infocount:integer;
Tmpstr, tmpitemvalue:string;
sbrandid:double;
Sbrandcode, Schinesename, Senglishname, Slogourl, sintroduction:string;
Infocode, infomsg:string;
Begin
FLAG_DO: = True;
URL: = ' http://devhhplus.oudianyun.com:2035/open-api/product-web/brand/getBrand.do ';

Try
While Flag_do do
Begin
Jsonobject: = tjsonobject.create;
Jsonparam: = tjsonobject.create;
Jsonarray: = tjsonarray.create;

With Dmmain.adoquery1 do
Begin
Close;
Parameters.clear;
Sql. Clear;
Sql. Add (' {call Pkg_synzhongtai.sp_getbrand (?)} ');
Sql. Add (' {call Pkg_synzhongtai.sp_getbrand} ');
Open;
If RecordCount = 0 Then
Begin
FLAG_DO: = False;
break;
End
A;
While does Eof do
Begin
Jsonarray.add (Fieldbyname (' Brandid '). asstring);
Jsonobject.addpair (' Brandid ', jsonarray);
Jsonobject.addpair (' brandname ', fieldbyname (' brandname '). asstring);
Next;
End
End

Jsonparam. Addpair (' app_id ', app_id);
Jsonparam. Addpair (' V ', ' 1.0 ');
Jsonparam. Addpair (' Jsondata ', jsonobject);
Jsonparam. Addpair (' sign ', getsign (Jsonparam));

JSONSTR: = Getformdata (Jsonparam);

RJSONSTR: = Sendpost (URL, JSONSTR);

Rjsonobject: = Tjsonobject.parsejsonvalue (RJSONSTR) as Tjsonobject;
Rjsondata: = Tjsonobject.parsejsonvalue (Trim (rjsonobject.getvalue (' data '). ToString)) as Tjsonobject;
Infocount: = Strtoint (Rjsondata.getvalue (' total '). ToString);

Infocode: = Rjsonobject.getvalue (' code '). ToString;
Rjsonobject.trygetvalue (' msg ', infomsg);
Rjsonarray: = Tjsonarray (Rjsondata.getvalue (' listobj '));

For I: = 0 to Rjsonarray.size-1 do
Begin
Rjsonlistobjitem: = Tjsonobject.parsejsonvalue (rjsonarray.items[i). ToString) as Tjsonobject;
Memo2.Lines.Add (' Brandid: ' + rjsonlistobjitem.getvalue (' Brandid '). ToString);
If Rjsonlistobjitem.trygetvalue (' Brandid ', tmpitemvalue) then
Sbrandid: = Strtofloat (Tmpitemvalue);
If Rjsonlistobjitem.trygetvalue (' Brandcode ', tmpitemvalue) then
Sbrandcode: = Tmpitemvalue;
If Rjsonlistobjitem.trygetvalue (' Chinesename ', tmpitemvalue) then
Schinesename: = Tmpitemvalue;
If Rjsonlistobjitem.trygetvalue (' Englishname ', tmpitemvalue) then
Senglishname: = Tmpitemvalue;
If Rjsonlistobjitem.trygetvalue (' Logourl ', tmpitemvalue) then
Slogourl: = Tmpitemvalue;
If Rjsonlistobjitem.trygetvalue (' Introduction ', Tmpitemvalue) then
Sintroduction: = Tmpitemvalue;

With Dmmain.adostoredproc1 do
Begin
Close;
Parameters.clear;
ProcedureName: = ' pkg_synzhongtai.sp_synztbrandweb ';
Parameters.createparameter (' Vbrandidweb ', Ftfloat, Pdinput, Sbrandid);
Parameters.createparameter (' Vbrandcode ', ftstring, Pdinput, Sbrandcode);
Parameters.createparameter (' Vchinesename ', ftstring, Pdinput, schinesename);
Parameters.createparameter (' Venglishname ', ftstring, Pdinput, senglishname);
Parameters.createparameter (' Vlogourl ', ftstring, Pdinput, Slogourl);
Parameters.createparameter (' vintroduction ', ftstring, Pdinput, sintroduction);
Execproc;
End
End
Logwrite (' Code: ' + Infocode + '. Msg: ' + infomsg);

Jsonobject: = nil;
Jsonparam: = nil;
Jsonarray: = nil;
Rjsonobject: = nil;
Rjsondata: = nil;
Rjsonlistobjitem: = nil;
Rjsonarray: = nil;
End
Finally

End

End

function Tfrmmain.sendpost (Aurl, ajsonstr:string): string;
Var
Jsontosend:tstringstream;
tmpresult:string;
Begin
Try
Try
Submit parameters as a list
Idhttp.handleredirects: = True; Allow head steering
Idhttp.readtimeout: = 5000; Request Timeout setting
IdHTTP.Request.ContentType: = ' application/x-www-form-urlencoded '; ' Application/json '; Set content type to JSON

Memo1.clear;
Memo1.text: = Ajsonstr;

Jsontosend: = Tstringstream.create (Ajsonstr, Tencoding.utf8);
Jsontosend.position: = 0; Place the flow position to 0

Idhttp.post (Url,jsontosend,responsestream);
Tmpresult: = Idhttp.post (Aurl, jsontosend);
Except
On E:exception do
Begin
ShowMessage (E.message);
End
End
Finally
Logwrite (Tmpresult);
Result: = Tmpresult;
End
End
function Getsign (params:tjsonobject): string;
Var
Arrstring, Arrstring1:array of string;
Len, I:integer;
S1:tstringlist;
Tmpstr, Tmpvalue, TMP1, tmpmd5:string;
MD5:THASHMD5;
Begin
Params. Removepair (' sign ');
Len: = params. Count;
SetLength (arrstring, Len);
SetLength (ArrString1, Len);

For I: = 0 to Len-1 do
Begin
Arrstring[i]: = params. Get (i). ToString;
Arrstring[i]: = params. Pairs[i]. jsonstring.tostring;
Arrstring[i]: = StringReplace (params. Pairs[i]. Jsonstring.tostring, ' "', ', [Rfreplaceall]);
ShowMessage (Arrstring[i]);
End
itemarry:= params. GetValue (' Jsondata ') as Tjsonarray;

S1: = Tstringlist.create;
For I: = 0 to Length (arrstring)-1 do
Begin
S1. ADD (Arrstring[i]);
End

S1. Sort;
For I: = 0 to S1. Count-1 do
Begin
Arrstring1[i]: = S1. Strings[i];
End

TMPSTR: = Tmpstr + App_secret;

For I: = 0 to Len-1 do
Begin
Tmpvalue: = params. GetValue (Arrstring1[i]). ToString;
ShowMessage (Arrstring1[i]);
ShowMessage (StringReplace (arrstring1[i], ' "', ', ', '", [Rfreplaceall]));
TMP1: = StringReplace (Arrstring1[i], ' ",", [Rfreplaceall]);
ShowMessage (TMP1);
ShowMessage (params. ToString);
ShowMessage (params. values[' Jsondata ']. ToString);
Tmpvalue: = params. VALUES[TMP1]. ToString;
If arrstring1[i] <> ' jsondata ' then
Begin
Tmpvalue: = StringReplace (Tmpvalue, ' "', ', ', [Rfreplaceall]);
End

If Tmpvalue <> ' then
Begin
TMPSTR: = Tmpstr + arrstring1[i] + tmpvalue;
End
End
TMPSTR: = Tmpstr + App_secret;
Application.messagebox (Pchar (TMPSTR), ' Encrypt before ', Mrok);

TMPMD5: = Uppercase (MD5. Gethashstring (TMPSTR));
Result: = TMPMD5;
End

function Getformdata (params:tjsonobject): string;
Var
Arrstring, Arrstring1:array of string;
Itemarry:tjsonarray;
Len, I:integer;
S1:tstringlist;
Tmpstr, Tmpvalue, FormData, tmp1:string;

MD5:THASHMD5;
Begin
Len: = params. Count;
SetLength (arrstring, Len);
SetLength (ArrString1, Len);

For I: = 0 to Len-1 do
Begin
Arrstring[i]: = params. Get (i). ToString;
Arrstring[i]: = params. Pairs[i]. jsonstring.tostring;
Arrstring[i]: = StringReplace (params. Pairs[i]. Jsonstring.tostring, ' "', ', [Rfreplaceall]);
End
itemarry:= params. GetValue (' Jsondata ') as Tjsonarray;

S1: = Tstringlist.create;
For I: = 0 to Length (arrstring)-1 do
Begin
S1. ADD (Arrstring[i]);
End

S1. Sort;
For I: = 0 to S1. Count-1 do
Begin
Arrstring1[i]: = S1. Strings[i];
End

TMPSTR: = ';

For I: = 0 to Len-1 do
Begin
Tmpvalue: = params. GetValue (Arrstring1[i]). ToString;
TMP1: = StringReplace (Arrstring1[i], ' ",", [Rfreplaceall]);
If arrstring1[i] <> ' jsondata ' then
Begin
Tmpvalue: = StringReplace (params. VALUES[TMP1]. ToString, ' "', ', ', [Rfreplaceall]);//params. VALUES[TMP1]. ToString;
End
Else
Begin
Tmpvalue: = params. VALUES[TMP1]. ToString;
End

If Tmpvalue <> ' then
Begin
If Tmpstr <> ' then
TMPSTR: = tmpstr + ' & ';

TMPSTR: = Tmpstr + arrstring1[i] + ' = ' + tmpvalue;
End
End
Result: = TMPSTR;
End

------------------------------------------------------------------------------------------------------------ ---need to use tjsonnumber for numeric types, Tjsonnumber supports double, Integer, Int64, and so on. Use the method below

uses Data.dbxjson;

var
  Json:tjsonobject;
Begin
  JSON: = Tjsonobject.create;
  JSON. Addpair (' Double ', Tjsonnumber.create (123.456));
  JSON. Addpair (' Integer ', Tjsonnumber.create (6789));
  JSON. Addpair (' String ', Tjsonnumber.create (' 1000 '));
  Memo1.Lines.Text: = JSON. tostring; //=> {"Double": 123.456, "Integer": 6789, "string": 1000}
  JSON. Free; The value of the

Boolean type requires the use of tjsontrue and Tjsonfalse.

uses System.json;

var
  Json:tjsonobject;
Begin
  JSON: = Tjsonobject.create;
  JSON. Addpair (' true ', tjsontrue.create);
  JSON. Addpair (' false ', tjsonfalse.create);
  Memo1.Lines.Text: = JSON. tostring; //=> {true: True, False: false}

Json. Free;