Delphi笔记-Indy10.5.5IdTcpServer与IdTcpClientDemo

原作者: [db:作者] 来自: [db:来源] 收藏邀请

//客户端

代码


unit UntClt;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, ComCtrls, IdBaseComponent, IdComponent, IdTCPConnection, IdTCPClient,
  StdCtrls, UntGlb, IdGlobal, ExtCtrls, ImgList, jpeg, WinSock, IdIPWatch;

type
  TForm1 = class(TForm)
    stat1: TStatusBar;
    img1: TImage;
    lbl1: TLabel;
    btn1: TButton;
    chk1: TCheckBox;
    edt1: TEdit;
    btn2: TButton;
    btn3: TButton;
    btn4: TButton;
    btn5: TButton;
    grp1: TGroupBox;
    lst1: TListBox;
    idtcpclnt1: TIdTCPClient;
    BalloonHint1: TBalloonHint;
    il1: TImageList;
    dlgOpen1: TOpenDialog;
    ProgressBar1: TProgressBar;
    btnCancle: TButton;
    IdIPWatch1: TIdIPWatch;
procedure btn1Click(Sender: TObject);
procedure chk1Click(Sender: TObject);
procedure idtcpclnt1Disconnected(Sender: TObject);
procedure btn2Click(Sender: TObject);
procedure idtcpclnt1Connected(Sender: TObject);
procedure FormCreate(Sender: TObject);
procedure btn5Click(Sender: TObject);
procedure btn3Click(Sender: TObject);
procedure btn4Click(Sender: TObject);
procedure WMMOVE(var msg: TMessage); message WM_MOVE;
procedure WMUSERMSG(var msg: TMessage); message WM_USERMSG;
procedure ShowProgressBar(Visible: Boolean);
procedure btnCancleClick(Sender: TObject);
private
{ Private declarations }
    ComputerName: string;

public
{ Public declarations }
    UserBreakAll: Boolean;

end;

  TFileThread = class(TThread)
private
// CB: TDataPack;
protected
procedure Execute; override;
end;

  TMonitorThread = class(TThread)
protected
procedure Execute; override;
end;

var
  Form1: TForm1;
  FileThread: TFileThread;
  MonitorThread: TMonitorThread;
  AllowDisconnectedEvent: Boolean = False;
function SendARP(Destip, scrip: DWORD; pmacaddr: PDWORD;
  VAR phyAddrlen: DWORD): DWORD; stdcall; external 'iphlpapi.dll';

implementation

{$R *.dfm}

function GetMacFromIP(IP: AnsiString): AnsiString;
type
  Tinfo = array [0 .. 7] of Byte;
var
  dwTargetIP: DWORD;
  dwMacAddress: array [0 .. 1] of DWORD;
  dwMacLen: DWORD;
  dwResult: DWORD;
  X: Tinfo;
  stemp: AnsiString;
  iloop: integer;
begin
  dwTargetIP := Inet_Addr(PAnsiChar(IP));
  dwMacLen := 6;
  dwResult := SendARP(dwTargetIP, 0, @dwMacAddress[0], dwMacLen);
case dwResult of
    NO_ERROR:
begin
// ShowMessage('查到');
        X := Tinfo(dwMacAddress);
for iloop := 0 to 5 do
begin
          stemp := stemp + inttohex(X[iloop], 2);
end;
        Result := stemp;
end;
    ERROR_BAD_NET_NAME:
      Result := '目标IPv4地址无法送达(Windows Vista 及以后版本错误)';
    ERROR_BUFFER_OVERFLOW:
      Result := 'PhyAddrLen参数小于6(Windows Vista 及以后版本错误)';
    ERROR_GEN_FAILURE:
      Result := '目标IPv4地址无法送达(Windows Server 2003及之前版本错误)';
    ERROR_INVALID_PARAMETER:
      Result := 'pMacAddr或PhyAddrLen参数是一个NULL指针(Windows Server 2003及之前版本错误)';
    ERROR_INVALID_USER_BUFFER:
      Result := 'PhyAddrLen参数为零(Windows Server 2003及之前版本错误)';
// ERROR_NOT_FOUND:Result :='非INADDR_ANY的IP地址(IPv4地址为0.0.0.0)(Windows Vista 错误)';
    ERROR_NOT_SUPPORTED:
      Result := '本机操作系统不支持该函数';
else
    Result := '未知';
end;
end;

function GetWindowsVersionString: AnsiString;
var
  VI: TOSVersionInfoA;
begin
  VI.dwOSVersionInfoSize := SizeOf(TOSVersionInfoA);
if GetVersionExA(VI) then
with VI do
      Result := Trim(Format('%d.%d build %d %s', [dwMajorVersion,
          dwMinorVersion, dwBuildNumber, szCSDVersion]))
else
      Result := '';
end;

function GetWindowsVersion: String; // 读取操作系统版本
var
  AWin32Version: Extended;
  os: string;
begin
  os := 'Windows ';
  AWin32Version := StrtoFloat(Format('%d.%d', [Win32MajorVersion,
      Win32MinorVersion]));
if Win32Platform = VER_PLATFORM_WIN32s then
    Result := os + '32'
else if Win32Platform = VER_PLATFORM_WIN32_WINDOWS then
begin
if AWin32Version = 4.0 then
      Result := os + '95'
else if AWin32Version = 4.1 then
      Result := os + '98'
else if AWin32Version = 4.9 then
      Result := os + 'Me'
else
      Result := os + '9x'
end
else if Win32Platform = VER_PLATFORM_WIN32_NT then
begin
if AWin32Version = 3.51 then
      Result := os + 'NT 3.51'
else if AWin32Version = 4.0 then
      Result := os + 'NT 4.0'
else if AWin32Version = 5.0 then
      Result := os + '2000'
else if AWin32Version = 5.1 then
      Result := os + 'XP'
else if AWin32Version = 5.2 then
      Result := os + '2003'
else if AWin32Version = 6.0 then
      Result := os + 'Vista'
else if AWin32Version = 6.1 then
      Result := os + '7'
else
      Result := os;
end
else
    Result := os + '??';
  Result := Result + '  ' + GetWindowsVersionString;
end;

procedure TForm1.btn1Click(Sender: TObject);
begin
  close;
end;

procedure TForm1.btn2Click(Sender: TObject);
var
  i: integer;
begin
if dlgOpen1.Execute(Handle) then
begin
for i := 0 to dlgOpen1.Files.Count - 1 do
      lst1.Items.add(dlgOpen1.Files[i]);
end;
  grp1.Caption := GroupText + Format(FileListString, [lst1.Count]);
end;

procedure TForm1.btn3Click(Sender: TObject);
begin
  lst1.Clear;
  grp1.Caption := GroupText + Format(FileListString, [0]);
end;

procedure TForm1.btn4Click(Sender: TObject);
begin
  lst1.DeleteSelected;
  grp1.Caption := GroupText + Format(FileListString, [lst1.Count]);
end;

procedure TForm1.btn5Click(Sender: TObject);
var
  DlgText: string;
begin

if idtcpclnt1.Connected then
begin
if lst1.Count > 0 then
begin
      DlgText := Format(DlgSendFileText, [lst1.Count]);
if Application.MessageBox(PChar(DlgText), '发送提示',
        MB_OKCANCEL + MB_ICONQUESTION) = IDOK then
begin
        ShowProgressBar(True);
        FileThread := TFileThread.Create(True);
        FileThread.FreeOnTerminate := True;
        FileThread.Start;
end;
end
else
      ShowMessage(DlgSelectFile);
end
else
    ShowMessage(DlgNoConnected);
end;

procedure TForm1.btnCancleClick(Sender: TObject);
begin
  UserBreakAll := True;
end;

procedure TForm1.chk1Click(Sender: TObject);
begin
  idtcpclnt1.Host := edt1.Text;
if chk1.Checked then
begin
try
      Application.ProcessMessages;
      idtcpclnt1.Connect;
      AllowDisconnectedEvent := True;
      stat1.Panels[1].Text := StaConnected;
except
      ShowMessage(DlgConnectFailed);
end;

end
else
begin
    AllowDisconnectedEvent := False;
    idtcpclnt1.Disconnect;
end;

  chk1.Checked := idtcpclnt1.Connected;
end;

procedure TForm1.FormCreate(Sender: TObject);
var
  n: Cardinal;
  Name: array [0 .. MAX_COMPUTERNAME_LENGTH] of Char;
begin
  n := MAX_COMPUTERNAME_LENGTH + 1;
  GetComputerName(name, n);
  ComputerName := string(Name);
  MonitorThread := TMonitorThread.Create(True);
  MonitorThread.FreeOnTerminate := True;
  MonitorThread.Start;
end;

procedure TForm1.idtcpclnt1Connected(Sender: TObject);
var
  bbuf: TIdBytes;
  buf: TDataPack;
begin
  bbuf := nil;
  FillChar(buf, SizeOf(buf), '');
  buf.Command := cmdSetName;
  StrPCopy(buf.ClientInfo.ClientName ,ComputerName);
  StrPCopy(buf.ClientInfo.ClientOS,GetWindowsVersion);
  StrPCopy(buf.ClientInfo.ClientACTIP ,GetMacFromIP(IdIPWatch1.LocalIP));
  bbuf := RawToBytes(buf, SizeOf(buf));
  idtcpclnt1.IOHandler.Write(bbuf);
end;

procedure TForm1.idtcpclnt1Disconnected(Sender: TObject);
begin
  stat1.Panels[1].Text := StaDisconnected;
  chk1.Checked := False;

end;

procedure TForm1.ShowProgressBar(Visible: Boolean);
begin
  ProgressBar1.Visible := Visible;
  btnCancle.Visible := Visible;
end;

procedure TForm1.WMMOVE(var msg: TMessage);
begin
// inherited;
// if Assigned(frmProgress) then
// frmProgress.Position := poMainFormCenter;
end;

procedure TForm1.WMUSERMSG(var msg: TMessage);
begin
case msg.WParam of
1:
      ShowMessage(Format(DlgFileSendOk, [msg.LParam]));
2:
      stat1.Panels[1].Text := string(PChar(msg.LParam));
3:
      ProgressBar1.Position := msg.LParam;
4:
      ProgressBar1.Max := msg.LParam;
5:
      idtcpclnt1.OnDisconnected(Self);
6:
      ShowMessage(DlgExcept);
7:
      ShowProgressBar(False);
end;

end;

{ TFileThread }

procedure TFileThread.Execute;
var
  FileName: string;
  buf: TDataPack;
  bbuf: TIdBytes;
  i, j, SendTimes, RemainLen, h, FileLen, SentFilesNum,
    ClientReadedBytes: integer;
begin
try
    Form1.UserBreakAll := False;
    SentFilesNum := 0;
for i := 0 to Form1.lst1.Count - 1 do
begin
if Form1.UserBreakAll then
        Break;
      FileName := Form1.lst1.Items[i];
// frmProgress.lbl1.Caption := FileName;
// frmProgress.pb1.Position := 0;
      PostMessage(Form1.Handle, WM_USERMSG, 2, integer(PChar(FileName)));
      PostMessage(Form1.Handle, WM_USERMSG, 3, 0);
      h := FileOpen(FileName, fmOpenRead);
if h > 0 then
begin
try
          FileLen := GetFileSize(h, nil);
          SendTimes := FileLen div SEND_BUF;
          RemainLen := FileLen mod SEND_BUF;
// frmProgress.pb1.Max := FileLen;
          PostMessage(Form1.Handle, WM_USERMSG, 4, FileLen);
          FillChar(buf.ClientInfo, SizeOf(buf.ClientInfo), '');
          buf.Command := cmdSendFile;
          StrPCopy(buf.FileName,ExtractFileName(FileName));
          buf.FileSize := FileLen;
          buf.Flags := 0; // 新建

for j := 1 to SendTimes do
begin
if Form1.UserBreakAll then
              Break;
if not Form1.idtcpclnt1.Connected then
              Break;
            ClientReadedBytes := FileRead(h, buf.FileData, SEND_BUF);
            buf.ReadBytes := ClientReadedBytes;
            bbuf := nil;
            bbuf := RawToBytes(buf, SizeOf(buf));
            Form1.idtcpclnt1.IOHandler.Write(bbuf);
            buf.Flags := 1; // 续传
// frmProgress.pb1.Position := j * SEND_BUF;
            PostMessage(Form1.Handle, WM_USERMSG, 3, j * SEND_BUF);
end;
if RemainLen > 0 then
begin
if not Form1.idtcpclnt1.Connected then
              Break;
            ClientReadedBytes := FileRead(h, buf.FileData, RemainLen);
            buf.ReadBytes := ClientReadedBytes;
            bbuf := nil;
            bbuf := RawToBytes(buf, SizeOf(buf));
            Form1.idtcpclnt1.IOHandler.Write(bbuf);

            PostMessage(Form1.Handle, WM_USERMSG, 3, FileLen);
end;
finally
          FileClose(h);
end;
if (not Form1.UserBreakAll) then
          inc(SentFilesNum);
end;
end;
    PostMessage(Form1.Handle, WM_USERMSG, 7, 0);
    PostMessage(Form1.Handle, WM_USERMSG, 1, SentFilesNum);
if Form1.idtcpclnt1.Connected and Form1.UserBreakAll then
begin
      bbuf := nil;
      buf.Command := cmdUserbreak;
      bbuf := RawToBytes(buf, SizeOf(buf));
      Form1.idtcpclnt1.IOHandler.Write(bbuf);
end;
except
    PostMessage(Form1.Handle, WM_USERMSG, 7, 0);
    PostMessage(Form1.Handle, WM_USERMSG, 6, 0);
    AllowDisconnectedEvent := False;
    Form1.idtcpclnt1.Disconnect;
    Terminate;
end;
end;

{ TMonitorThread }

procedure TMonitorThread.Execute;
begin
while not Terminated do
begin
if not Form1.idtcpclnt1.Connected then
if AllowDisconnectedEvent then
begin
        AllowDisconnectedEvent := False;
        PostMessage(Form1.Handle, WM_USERMSG, 5, 0);
end;
    Sleep(100);
end;
end;

end.

//公共单元

代码


unit UntGlb;

interface
uses
  Messages,Windows, SysUtils,Classes ;

const
  WM_USERMSG = WM_USER +1002;
  WM_USERFILE= WM_USER +1003;
  ADD_LIST = 0;
  DEL_LIST =1;
  UPD_STA  =2 
                       
                    
                     
                      



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