线程加载返回的XMLtoTClientDataSet

type
  TReadOrderThread = class(TThread)
  private
    FCDS: TClientDataSet;
    Fstr: string;

  protected

    procedure Execute; override;
    procedure readOrder;

    function  XMLToDataSet(strXML:WideString;nodeName:string):TClientDataSet;

  public
    constructor Create(str:string);  overload;

  end;

function PostWebPage(url,para:String;TimeOut:Integer):WideString;
var
  tmpWeb:TIdHTTP;
  IdSSL : TIdSSLIOHandlerSocketOpenSSL;
  retrun:String;
  Proxy:String;
  i:Integer;
  paralist:TStrings;
  Response2: TStringStream;

begin
  retrun:='';
  try
    //Response2:= TStringStream.Create('');
    paralist:=TStringList.Create;
    paralist.Text:=StringReplace(para,'&',#13#10,[rfReplaceAll]);
    IdSSL:= TIdSSLIOHandlerSocketOpenSSL.Create(nil);
    IdSSL.SSLOptions.Method:=sslvSSLv3;
    tmpWeb:=TIdHTTP.Create(nil);

    tmpWeb.IOHandler:=IdSSL;


    tmpWeb.ReadTimeout:=TimeOut;
    tmpWeb.Request.ContentType:='application/x-www-form-urlencoded';
    try
    retrun:=tmpWeb.Post(url,paralist);
    except
     on e:exception do
      showmessage(e.Message);

    end;
    sleep(500);
   // retrun:=Utf8ToAnsi(paralist.Text);

  finally
      tmpWeb.Disconnect;
      FreeAndNil(tmpWeb);
      //Response2.Free;
      FreeAndNil(paralist);
  end;
  Result:=retrun;
end; 

 constructor TreadOrderThread.Create(str:string);
begin
  FreeOnTerminate := True;
  Fstr := str;
  FCDS:=TClientDataSet.Create(nil);
  inherited Create(False);
end;

function   TreadOrderThread.XMLToDataSet(strXML:WideString;nodeName:string):TClientDataSet;
  var
      myDataSet:TClientDataSet;
      s:string;
      xdoc   :   IXMLDOMDocument;
      xdn   :IXMLDOMNode;
      xdns   :IXMLDOMNodeList;
      i,j:integer;
      d,ii:integer;
      sumtotal,sumje,dj,je:double;
      sl:integer;
begin

  myDataSet   :=   TClientDataSet.Create(nil);
  xdoc:=CreateDOMDocument();
  xdoc.loadXML(strXML);
  sumtotal:=0;
  sumje:=0;
  s:='';
  xdn:=xdoc.documentElement;
  xdns:=xdoc.selectNodes('//'+nodeName);
  try
  begin
    try
      for i:=0 to xdns.item[0].childNodes.length-1 do
      begin
        myDataSet.FieldDefs.Add(xdns.item[0].childNodes[i].nodeName,ftstring,1000);
      end;
    except
       Application.MessageBox('没有查询到数据。','提示',32);
       exit;
    end;

    try
       myDataSet.CreateDataSet;                      //建立
       myDataSet.Active;

    except;
    end;

    d:=0;
    for i:=0 to xdns.length-1 do
    begin
       myDataSet.Append;
          myDataSet.FieldValues[xdns.item[i].childNodes[j].nodeName]:=xdns.item[i].childNodes[j].text;
       end;
     
       myDataSet.Post;
    end;


    

    end;
      except
      on   Ex:Exception   do
      begin
        myDataSet:=nil;
        FCDS.Active:=false;

      end;
   end;

      result:=myDataSet;
    
  end;

 procedure TreadOrderThread.Execute;
var
  OwnerData: OleVariant;

begin
  try
       FCDS.Active:=false;

    //while not self.Terminated do
    //begin
       self.Synchronize(readOrder);
       sleep(50);
     //  if (_total>(total/page)) or (total=0) then
      //   self.Terminate();
   // end;
  finally
   // CoUninitialize;
  end;
end;