Delphi 多线程的操作

Delphi 操作多线程的代码, 在项目中需要在webservice中使用多线程,程序思想如下:

1.就创建一个线程, 也就是说有两个线程,主线程和创建的线程, 主线程用于程序的别的操作,例如停止服务,和关闭程序等等。

2.辅线程用于调用Webservice,用他的目的,还有就是方便查看memo中的日志, 如果只有一个线程,这是不可能的,只有等调用结束才可以,但是这里面又用到了Timer,结果想在主线程查看memo,很费劲。故创建一个辅线程。

 

 

 

type
  TMyThread = class(TThread)
  private
    FMyThreadExecfinish: Boolean;

    FHTTPRIOLeExp: THTTPRIO;
    FHTTPRIONC: THTTPRIO;
    FHTTPRIOLeExp2: THTTPRIO;
    FHTTPRIOLeExp3: THTTPRIO;
    function ExecTimer: Boolean;
  protected
    FLogStrings: TStrings;
    procedure Execute; override;
  public
    property LogStrings: TStrings read FLogStrings write FLogStrings;
    property MyThreadExecfinish: Boolean read FMyThreadExecfinish write FMyThreadExecfinish;
    property HTTPRIOLeExp: THTTPRIO  read FHTTPRIOLeExp write FHTTPRIOLeExp;
    property HTTPRIONC: THTTPRIO  read FHTTPRIONC write FHTTPRIONC;
    property HTTPRIOLeExp2: THTTPRIO read FHTTPRIOLeExp2 write FHTTPRIOLeExp2;
    property HTTPRIOLeExp3: THTTPRIO read FHTTPRIOLeExp3 write FHTTPRIOLeExp3;
  end;

 

procedure TfrmDataExchangePlatformMain.FormShow(Sender: TObject);
begin
  MyThread := TMyThread.Create(True);  // false  则自动调用Execute,  True,  需要Resume后,在调用Execute

  MyThread.LogStrings := cxMemo_Log.Lines;
  MyThread.MyThreadExecfinish := True;
  MyThread.HTTPRIOLeExp := DMConn.HTTPRIOLeExp;
  MyThread.HTTPRIONC := DMConn.HTTPRIONC;
end;

 

 


procedure TfrmDataExchangePlatformMain.Timer_ServiceTimer(Sender: TObject);
var
  ID: THandle;

begin
  if MyThread.MyThreadExecfinish then
    MyThread.Resume;

     //CreateThread(nil, 0, @ExecTimer, nil, 0, ID); //ExecTimer;
end;


{ TMyThread }

procedure TMyThread.Execute;
begin
  inherited;
  //FreeOnTerminate := True; {这可以让线程执行完毕后随即释放}  这个就不能要了,  因为你需要这个线程,在程序结束的时候把线程关闭就可以了
  if MyThreadExecfinish then
    ExecTimer;
end;

function  TMyThread.ExecTimer: Boolean;
begin
  Result := False ;
  FMyThreadExecfinish := False;
  Screen.Cursor := crHourGlass;
  CoInitialize(nil);
  try
    TranspondClientBaseData_factory1(HTTPRIOLeExp, HTTPRIONC, LogStrings);
    Sleep(1000);
    TranspondPersonBaseData_factory1(HTTPRIOLeExp, HTTPRIONC, LogStrings);
    Sleep(1000);
    TranspondDeptBaseData_factory1(HTTPRIOLeExp, HTTPRIONC, LogStrings);
  finally
    Result := True;
    FMyThreadExecfinish := True;
    Screen.Cursor := crDefault;
    CoUninitialize;
  end;

end;

 

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