图老师小编精心整理的一个多线程后台扫描的程序和源代码希望大家喜欢，觉得好的亲们记得收藏起来哦！您的支持就是小编更新的动力~
【 tulaoshi.com - 编程语言 】
界面是防明小子的那个扫描工具写的，算是学习多线程的一个例子把
界面图示：
http://www.wrsky.com/attachment/3_1875.jpg
程序和源代码：
http://downloads.2ccc.com/general/internet_lan/hnxyy_scan.rar
使用D7编写，主要部分代码：
//主界面部分
unit1.pas
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, Tabs, ExtCtrls, ComCtrls, IdHTTP, Unit2;
type
TForm1 = class(TForm)
Label1: TLabel;
Edit1: TEdit;
Button1: TButton;
TabSet1: TTabSet;
StatusBar1: TStatusBar;
ProgressBar1: TProgressBar;
Panel1: TPanel;
GroupBox1: TGroupBox;
Memo1: TMemo;
Edit2: TEdit;
Button2: TButton;
Button3: TButton;
Button4: TButton;
GroupBox2: TGroupBox;
Memo2: TMemo;
GroupBox3: TGroupBox;
Memo3: TMemo;
Button5: TButton;
OpenDialog1: TOpenDialog;
procedure TabSet1Click(Sender: TObject);
procedure Button5Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
procedure Button1Click(Sender: TObject);
procedure Button4Click(Sender: TObject);
procedure Button3Click(Sender: TObject);
private
{ Private declarations }
//弹出信息框
procedure MsgBox(strMsg: string);
procedure ThreadExit(sender: TObject);
public
{ Public declarations }
end;
var
Form1: TForm1;
Thread1: array of T1; // 定义线程数组
n: integer = 0;
bool: boolean = True;
implementation
{$R *.dfm}
procedure TForm1.TabSet1Click(Sender: TObject);
begin
if TabSet1.TabIndex = 0 then
begin
GroupBox2.Visible :=true;
GroupBox3.Visible :=true;
GroupBox1.Visible :=false;
Panel1.Visible :=False;
end else
begin
GroupBox2.Visible :=false;
GroupBox3.Visible :=false;
GroupBox1.Visible :=true;
Panel1.Visible :=true;
end;
end;
procedure TForm1.Button5Click(Sender: TObject);
var
i:integer;
url:string;
begin
if Edit1.Text='' then
begin
MsgBox('请输入要检测的网站地址！');
exit;
end;
Memo3.Clear;
Memo2.Clear;
ProgressBar1.Min :=0;
ProgressBar1.Max :=Memo1.Lines.Count;
ProgressBar1.Step :=1;
ProgressBar1.Position :=0;
for i:=0 to Memo1.Lines.Count - 1 do
begin
url :=trim(Edit1.Text)+Memo1.Lines;
Memo3.Lines.Add(url);
GroupBox3.Caption :='信息：已检测'+inttostr(Memo3.Lines.Count)+'个页面';
ProgressBar1.StepIt;
if CheckUrl(url) then
begin
Memo2.Lines.Add('该URL存在! - '+url);
GroupBox2.Caption :='存在：共找到'+inttostr(Memo2.Lines.Count)+'条路径';
end;
end;
end;
procedure TForm1.MsgBox(strMsg: string);
begin
Application.MessageBox(pchar(strMsg), '提示信息', mb_iconinformation);
end;
procedure TForm1.Button2Click(Sender: TObject);
begin
if trim(Edit2.Text)'' then
Memo1.Lines.Add(trim(Edit2.Text));
end;
procedure TForm1.Button1Click(Sender: TObject);
var
i: integer;
Sum:integer;
begin
if bool then
begin
Memo3.Clear;
Memo2.Clear;
n :=0;
Sum :=Memo1.lines.count;
SetLength(Thread1,Sum); // 动态设置线程的数量
ProgressBar1.Min :=0;
ProgressBar1.Max :=sum;
ProgressBar1.Step :=1;
ProgressBar1.Position :=0;
for i := 0 to Sum - 1 do
begin
Thread1 := T1.Create(Memo1,Memo2,Memo3,i);
Thread1.OnTerminate := ThreadExit;
//ProgressBar1.StepIt;
//sleep(30);
end;
end;
bool := False; // 关闭开关
end;
procedure TForm1.ThreadExit(sender: TObject);
begin
ProgressBar1.StepIt;
Memo3.Lines.Add(trim(Edit1.Text)+Memo1.Lines[n]);
GroupBox3.Caption :='信息：已检测'+inttostr(Memo3.Lines.Count)+'个页面';
inc(n); // 线程结束后自增1
if N = Memo1.lines.count then
begin
bool := true; // 打开开关
exit;
end;
end;
procedure TForm1.Button4Click(Sender: TObject);
begin
if OpenDialog1.Execute then
Memo1.Lines.LoadFromFile(OpenDialog1.FileName);
end;
procedure TForm1.Button3Click(Sender: TObject);
begin
Memo1.Lines.Delete(Memo1.Lines.Count-1);
end;
end.
//处理线程部分
unit2.pas
unit Unit2;
interface
uses
Classes,StdCtrls,Windows,SysUtils,wininet,IdHTTP;
var
CS:TRTLCriticalSection; //定义全局临界区
type
T1 = class(TThread)
private
TmpM1,TmpM2,TmpM3: TMemo;
TmpNum: integer;
Str :string;
procedure DataMemo;
protected
procedure Execute; override;
public
constructor Create(M1,M2,M3: TMemo; Num: integer);
end;
function Get(URL: string): boolean;
function CheckUrl(url: string; TimeOut: integer = 5000): boolean;
implementation
uses Unit1;
{ T1 }
constructor T1.Create(M1,M2,M3: TMemo; Num: integer);
begin
TmpNum := Num; // 传递参数
TmpM1 :=M1; // 绑定控件
TmpM2 :=M2;
TmpM3 :=M3;
FreeOnTerminate := True; // 自动删除
InitializeCriticalSection(CS); //初始化临界区
inherited Create(False); // 直接运行
end;
function Get(URL: string): boolean;
var
IDHTTP: TIDHttp;
ss: String;
begin
Result:= False;
IDHTTP:= TIDHTTP.Create(nil);
try
try
idhttp.HandleRedirects:= true; //必须支持重定向否则可能出错
idhttp.ReadTimeout:= 30000; //超过这个时间则不再访问
ss:= IDHTTP.Get(URL);
if IDHTTP.ResponseCode=200 then
Result :=true;
except
end;
finally
IDHTTP.Free;
end;
end;
//====================== 判断网址是否存在的函数 =======================
function CheckUrl(url: string; TimeOut: integer = 5000): boolean;
var
hSession, hfile, hRequest: hInternet;
dwindex, dwcodelen: dword;
dwcode: array[1..20] of char;
res: pchar;
re: integer;
Err1: integer;
j: integer;
begin
if pos('http://', lowercase(url)) = 0 then
url := 'http://' + url;
Result := false;
InternetSetOption(hSession, Internet_OPTION_CONNECT_TIMEOUT, @TimeOut, 4);
hSession := InternetOpen('Mozilla/4.0', INTERNET_OPEN_TYPE_PRECONFIG, nil, nil, 0);
//设置超时
if assigned(hsession) then
begin
j := 1;
while true do
begin
hfile := InternetOpenUrl(hsession, pchar(url), nil, 0, INTERNET_FLAG_RELOAD, 0);
if hfile = nil then
begin
j := j + 1;
Err1 := GetLastError;
if j 5 then break;
if (Err1 12002) or (Err1 12152) then break;
sleep(2);
end
else begin
break;
end;
end;
dwIndex := 0;
dwCodeLen := 10;
HttpQueryInfo(hfile, HTTP_QUERY_STATUS_CODE, @dwcode, dwcodeLen, dwIndex);
res := pchar(@dwcode);
re := strtointdef(res, 404);
case re of
400..450: result := false;
else result := true;
end;
if assigned(hfile) then
InternetCloseHandle(hfile);
InternetCloseHandle(hsession);
end;
end;
function GetBackSpaceCount(str:string):string;
var i,iCount:integer;
begin
iCount :=50-length(str);
for i:=0 to iCount-1 do
begin
Result :=Result+' ';
end;
end;
procedure T1.DataMemo;
begin
TmpM2.Lines.Add(str+GetBackSpaceCount(str)+'线程'+inttostr(TmpNum+1)+'检测结果');
Form1.GroupBox2.Caption :='存在：共找到'+inttostr(TmpM2.Lines.Count)+'条路径';
end;
procedure T1.Execute;
begin
Str :=trim(Form1.Edit1.Text) + TmpM1.Lines[TmpNum];
EnterCriticalSection(cs); //进入临界区
if CheckUrl(Str) then
begin
Synchronize(DataMemo); // 同步
end;
LeaveCriticalSection(CS); //退出临界区
//sleep(20); // 线程挂起;
end;
end.
!----
（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）
（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）
界面是防明小子的那个扫描工具写的，算是学习多线程的一个例子把
界面图示：
http://www.wrsky.com/attachment/3_1875.jpg
程序和源代码：
http://downloads.2ccc.com/general/internet_lan/hnxyy_scan.rar
使用D7编写，主要部分代码：
//主界面部分
unit1.pas
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, Tabs, ExtCtrls, ComCtrls, IdHTTP, Unit2;
type
TForm1 = class(TForm)
Label1: TLabel;
Edit1: TEdit;
Button1: TButton;
TabSet1: TTabSet;
StatusBar1: TStatusBar;
ProgressBar1: TProgressBar;
Panel1: TPanel;
GroupBox1: TGroupBox;
Memo1: TMemo;
Edit2: TEdit;
Button2: TButton;
Button3: TButton;
Button4: TButton;
GroupBox2: TGroupBox;
Memo2: TMemo;
GroupBox3: TGroupBox;
Memo3: TMemo;
Button5: TButton;
OpenDialog1: TOpenDialog;
procedure TabSet1Click(Sender: TObject);
procedure Button5Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
procedure Button1Click(Sender: TObject);
procedure Button4Click(Sender: TObject);
procedure Button3Click(Sender: TObject);
private
{ Private declarations }
//弹出信息框
procedure MsgBox(strMsg: string);
procedure ThreadExit(sender: TObject);
public
{ Public declarations }
end;
var
Form1: TForm1;
Thread1: array of T1; // 定义线程数组
n: integer = 0;
bool: boolean = True;
implementation
{$R *.dfm}
procedure TForm1.TabSet1Click(Sender: TObject);
begin
if TabSet1.TabIndex = 0 then
begin
GroupBox2.Visible :=true;
GroupBox3.Visible :=true;
GroupBox1.Visible :=false;
Panel1.Visible :=False;
end else
begin
GroupBox2.Visible :=false;
GroupBox3.Visible :=false;
GroupBox1.Visible :=true;
Panel1.Visible :=true;
end;
end;
procedure TForm1.Button5Click(Sender: TObject);
var
i:integer;
url:string;
begin
if Edit1.Text='' then
begin
MsgBox('请输入要检测的网站地址！');
exit;
end;
Memo3.Clear;
Memo2.Clear;
ProgressBar1.Min :=0;
ProgressBar1.Max :=Memo1.Lines.Count;
ProgressBar1.Step :=1;
ProgressBar1.Position :=0;
for i:=0 to Memo1.Lines.Count - 1 do
begin
url :=trim(Edit1.Text)+Memo1.Lines;
Memo3.Lines.Add(url);
GroupBox3.Caption :='信息：已检测'+inttostr(Memo3.Lines.Count)+'个页面';
ProgressBar1.StepIt;
if CheckUrl(url) then
begin
Memo2.Lines.Add('该URL存在! - '+url);
GroupBox2.Caption :='存在：共找到'+inttostr(Memo2.Lines.Count)+'条路径';
end;
end;
end;
procedure TForm1.MsgBox(strMsg: string);
begin
Application.MessageBox(pchar(strMsg), '提示信息', mb_iconinformation);
end;
procedure TForm1.Button2Click(Sender: TObject);
begin
if trim(Edit2.Text)'' then
Memo1.Lines.Add(trim(Edit2.Text));
end;
procedure TForm1.Button1Click(Sender: TObject);
var
i: integer;
Sum:integer;
begin
if bool then
begin
Memo3.Clear;
Memo2.Clear;
n :=0;
Sum :=Memo1.lines.count;
SetLength(Thread1,Sum); // 动态设置线程的数量
ProgressBar1.Min :=0;
ProgressBar1.Max :=sum;
ProgressBar1.Step :=1;
ProgressBar1.Position :=0;
for i := 0 to Sum - 1 do
begin
Thread1 := T1.Create(Memo1,Memo2,Memo3,i);
Thread1.OnTerminate := ThreadExit;
//ProgressBar1.StepIt;
//sleep(30);
end;
end;
bool := False; // 关闭开关
end;
procedure TForm1.ThreadExit(sender: TObject);
begin
ProgressBar1.StepIt;
Memo3.Lines.Add(trim(Edit1.Text)+Memo1.Lines[n]);
GroupBox3.Caption :='信息：已检测'+inttostr(Memo3.Lines.Count)+'个页面';
inc(n); // 线程结束后自增1
if N = Memo1.lines.count then
begin
bool := true; // 打开开关
exit;
end;
end;
procedure TForm1.Button4Click(Sender: TObject);
begin
if OpenDialog1.Execute then
Memo1.Lines.LoadFromFile(OpenDialog1.FileName);
end;
procedure TForm1.Button3Click(Sender: TObject);
begin
Memo1.Lines.Delete(Memo1.Lines.Count-1);
end;
end.
//处理线程部分
unit2.pas
unit Unit2;
interface
uses
Classes,StdCtrls,Windows,SysUtils,wininet,IdHTTP;
var
CS:TRTLCriticalSection; //定义全局临界区
type
T1 = class(TThread)
private
TmpM1,TmpM2,TmpM3: TMemo;
TmpNum: integer;
Str :string;
procedure DataMemo;
protected
procedure Execute; override;
public
constructor Create(M1,M2,M3: TMemo; Num: integer);
end;
function Get(URL: string): boolean;
function CheckUrl(url: string; TimeOut: integer = 5000): boolean;
implementation
uses Unit1;
{ T1 }
constructor T1.Create(M1,M2,M3: TMemo; Num: integer);
begin
TmpNum := Num; // 传递参数
TmpM1 :=M1; // 绑定控件
TmpM2 :=M2;
TmpM3 :=M3;
FreeOnTerminate := True; // 自动删除
InitializeCriticalSection(CS); //初始化临界区
inherited Create(False); // 直接运行
end;
function Get(URL: string): boolean;
var
IDHTTP: TIDHttp;
ss: String;
begin
Result:= False;
IDHTTP:= TIDHTTP.Create(nil);
try
try
idhttp.HandleRedirects:= true; //必须支持重定向否则可能出错
idhttp.ReadTimeout:= 30000; //超过这个时间则不再访问
ss:= IDHTTP.Get(URL);
if IDHTTP.ResponseCode=200 then
Result :=true;
except
end;
finally
IDHTTP.Free;
end;
end;
//====================== 判断网址是否存在的函数 =======================
function CheckUrl(url: string; TimeOut: integer = 5000): boolean;
var
hSession, hfile, hRequest: hInternet;
dwindex, dwcodelen: dword;
dwcode: array[1..20] of char;
res: pchar;
re: integer;
Err1: integer;
j: integer;
begin
if pos('http://', lowercase(url)) = 0 then
url := 'http://' + url;
Result := false;
InternetSetOption(hSession, Internet_OPTION_CONNECT_TIMEOUT, @TimeOut, 4);
hSession := InternetOpen('Mozilla/4.0', INTERNET_OPEN_TYPE_PRECONFIG, nil, nil, 0);
//设置超时
if assigned(hsession) then
begin
j := 1;
while true do
begin
hfile := InternetOpenUrl(hsession, pchar(url), nil, 0, INTERNET_FLAG_RELOAD, 0);
if hfile = nil then
begin
j := j + 1;
Err1 := GetLastError;
if j 5 then break;
if (Err1 12002) or (Err1 12152) then break;
sleep(2);
end
else begin
break;
end;
end;
dwIndex := 0;
dwCodeLen := 10;
HttpQueryInfo(hfile, HTTP_QUERY_STATUS_CODE, @dwcode, dwcodeLen, dwIndex);
res := pchar(@dwcode);
re := strtointdef(res, 404);
case re of
400..450: result := false;
else result := true;
end;
if assigned(hfile) then
InternetCloseHandle(hfile);
InternetCloseHandle(hsession);
end;
end;
function GetBackSpaceCount(str:string):string;
var i,iCount:integer;
begin
iCount :=50-length(str);
for i:=0 to iCount-1 do
begin
Result :=Result+' ';
end;
end;
procedure T1.DataMemo;
begin
TmpM2.Lines.Add(str+GetBackSpaceCount(str)+'线程'+inttostr(TmpNum+1)+'检测结果');
Form1.GroupBox2.Caption :='存在：共找到'+inttostr(TmpM2.Lines.Count)+'条路径';
end;
procedure T1.Execute;
begin
Str :=trim(Form1.Edit1.Text) + TmpM1.Lines[TmpNum];
EnterCriticalSection(cs); //进入临界区
if CheckUrl(Str) then
begin
Synchronize(DataMemo); // 同步
end;
LeaveCriticalSection(CS); //退出临界区
//sleep(20); // 线程挂起;
end;
end.
!----
（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）
（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）
（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）
!----
（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）
（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）
（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）
!----
（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）
（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）
（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）
!----
（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）
（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）
界面是防明小子的那个扫描工具写的，算是学习多线程的一个例子把
界面图示：
http://www.wrsky.com/attachment/3_1875.jpg
程序和源代码：
http://downloads.2ccc.com/general/internet_lan/hnxyy_scan.rar
使用D7编写，主要部分代码：
//主界面部分
unit1.pas
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, Tabs, ExtCtrls, ComCtrls, IdHTTP, Unit2;
type
TForm1 = class(TForm)
Label1: TLabel;
Edit1: TEdit;
Button1: TButton;
TabSet1: TTabSet;
StatusBar1: TStatusBar;
ProgressBar1: TProgressBar;
Panel1: TPanel;
GroupBox1: TGroupBox;
Memo1: TMemo;
Edit2: TEdit;
Button2: TButton;
Button3: TButton;
Button4: TButton;
GroupBox2: TGroupBox;
Memo2: TMemo;
GroupBox3: TGroupBox;
Memo3: TMemo;
Button5: TButton;
OpenDialog1: TOpenDialog;
procedure TabSet1Click(Sender: TObject);
procedure Button5Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
procedure Button1Click(Sender: TObject);
procedure Button4Click(Sender: TObject);
procedure Button3Click(Sender: TObject);
private
{ Private declarations }
//弹出信息框
procedure MsgBox(strMsg: string);
procedure ThreadExit(sender: TObject);
public
{ Public declarations }
end;
var
Form1: TForm1;
Thread1: array of T1; // 定义线程数组
n: integer = 0;
bool: boolean = True;
implementation
{$R *.dfm}
procedure TForm1.TabSet1Click(Sender: TObject);
begin
if TabSet1.TabIndex = 0 then
begin
GroupBox2.Visible :=true;
GroupBox3.Visible :=true;
GroupBox1.Visible :=false;
Panel1.Visible :=False;
end else
begin
GroupBox2.Visible :=false;
GroupBox3.Visible :=false;
GroupBox1.Visible :=true;
Panel1.Visible :=true;
end;
end;
procedure TForm1.Button5Click(Sender: TObject);
var
i:integer;
url:string;
begin
if Edit1.Text='' then
begin
MsgBox('请输入要检测的网站地址！');
exit;
end;
Memo3.Clear;
Memo2.Clear;
ProgressBar1.Min :=0;
ProgressBar1.Max :=Memo1.Lines.Count;
ProgressBar1.Step :=1;
ProgressBar1.Position :=0;
for i:=0 to Memo1.Lines.Count - 1 do
begin
url :=trim(Edit1.Text)+Memo1.Lines;
Memo3.Lines.Add(url);
GroupBox3.Caption :='信息：已检测'+inttostr(Memo3.Lines.Count)+'个页面';
ProgressBar1.StepIt;
if CheckUrl(url) then
begin
Memo2.Lines.Add('该URL存在! - '+url);
GroupBox2.Caption :='存在：共找到'+inttostr(Memo2.Lines.Count)+'条路径';
end;
end;
end;
procedure TForm1.MsgBox(strMsg: string);
begin
Application.MessageBox(pchar(strMsg), '提示信息', mb_iconinformation);
end;
procedure TForm1.Button2Click(Sender: TObject);
begin
if trim(Edit2.Text)'' then
Memo1.Lines.Add(trim(Edit2.Text));
end;
procedure TForm1.Button1Click(Sender: TObject);
var
i: integer;
Sum:integer;
begin
if bool then
begin
Memo3.Clear;
Memo2.Clear;
n :=0;
Sum :=Memo1.lines.count;
SetLength(Thread1,Sum); // 动态设置线程的数量
ProgressBar1.Min :=0;
ProgressBar1.Max :=sum;
ProgressBar1.Step :=1;
ProgressBar1.Position :=0;
for i := 0 to Sum - 1 do
begin
Thread1 := T1.Create(Memo1,Memo2,Memo3,i);
Thread1.OnTerminate := ThreadExit;
//ProgressBar1.StepIt;
//sleep(30);
end;
end;
bool := False; // 关闭开关
end;
procedure TForm1.ThreadExit(sender: TObject);
begin
ProgressBar1.StepIt;
Memo3.Lines.Add(trim(Edit1.Text)+Memo1.Lines[n]);
GroupBox3.Caption :='信息：已检测'+inttostr(Memo3.Lines.Count)+'个页面';
inc(n); // 线程结束后自增1
if N = Memo1.lines.count then
begin
bool := true; // 打开开关
exit;
end;
end;
procedure TForm1.Button4Click(Sender: TObject);
begin
if OpenDialog1.Execute then
Memo1.Lines.LoadFromFile(OpenDialog1.FileName);
end;
procedure TForm1.Button3Click(Sender: TObject);
begin
Memo1.Lines.Delete(Memo1.Lines.Count-1);
end;
end.
//处理线程部分
unit2.pas
unit Unit2;
interface
uses
Classes,StdCtrls,Windows,SysUtils,wininet,IdHTTP;
var
CS:TRTLCriticalSection; //定义全局临界区
type
T1 = class(TThread)
private
TmpM1,TmpM2,TmpM3: TMemo;
TmpNum: integer;
Str :string;
procedure DataMemo;
protected
procedure Execute; override;
public
constructor Create(M1,M2,M3: TMemo; Num: integer);
end;
function Get(URL: string): boolean;
function CheckUrl(url: string; TimeOut: integer = 5000): boolean;
implementation
uses Unit1;
{ T1 }
constructor T1.Create(M1,M2,M3: TMemo; Num: integer);
begin
TmpNum := Num; // 传递参数
TmpM1 :=M1; // 绑定控件
TmpM2 :=M2;
TmpM3 :=M3;
FreeOnTerminate := True; // 自动删除
InitializeCriticalSection(CS); //初始化临界区
inherited Create(False); // 直接运行
end;
function Get(URL: string): boolean;
var
IDHTTP: TIDHttp;
ss: String;
begin
Result:= False;
IDHTTP:= TIDHTTP.Create(nil);
try
try
idhttp.HandleRedirects:= true; //必须支持重定向否则可能出错
idhttp.ReadTimeout:= 30000; //超过这个时间则不再访问
ss:= IDHTTP.Get(URL);
if IDHTTP.ResponseCode=200 then
Result :=true;
except
end;
finally
IDHTTP.Free;
end;
end;
//====================== 判断网址是否存在的函数 =======================
function CheckUrl(url: string; TimeOut: integer = 5000): boolean;
var
hSession, hfile, hRequest: hInternet;
dwindex, dwcodelen: dword;
dwcode: array[1..20] of char;
res: pchar;
re: integer;
Err1: integer;
j: integer;
begin
if pos('http://', lowercase(url)) = 0 then
url := 'http://' + url;
Result := false;
InternetSetOption(hSession, Internet_OPTION_CONNECT_TIMEOUT, @TimeOut, 4);
hSession := InternetOpen('Mozilla/4.0', INTERNET_OPEN_TYPE_PRECONFIG, nil, nil, 0);
//设置超时
if assigned(hsession) then
begin
j := 1;
while true do
begin
hfile := InternetOpenUrl(hsession, pchar(url), nil, 0, INTERNET_FLAG_RELOAD, 0);
if hfile = nil then
begin
j := j + 1;
Err1 := GetLastError;
if j 5 then break;
if (Err1 12002) or (Err1 12152) then break;
sleep(2);
end
else begin
break;
end;
end;
dwIndex := 0;
dwCodeLen := 10;
HttpQueryInfo(hfile, HTTP_QUERY_STATUS_CODE, @dwcode, dwcodeLen, dwIndex);
res := pchar(@dwcode);
re := strtointdef(res, 404);
case re of
400..450: result := false;
else result := true;
end;
if assigned(hfile) then
InternetCloseHandle(hfile);
InternetCloseHandle(hsession);
end;
end;
function GetBackSpaceCount(str:string):string;
var i,iCount:integer;
begin
iCount :=50-length(str);
for i:=0 to iCount-1 do
begin
Result :=Result+' ';
end;
end;
procedure T1.DataMemo;
begin
TmpM2.Lines.Add(str+GetBackSpaceCount(str)+'线程'+inttostr(TmpNum+1)+'检测结果');
Form1.GroupBox2.Caption :='存在：共找到'+inttostr(TmpM2.Lines.Count)+'条路径';
end;
procedure T1.Execute;
begin
Str :=trim(Form1.Edit1.Text) + TmpM1.Lines[TmpNum];
EnterCriticalSection(cs); //进入临界区
if CheckUrl(Str) then
begin
Synchronize(DataMemo); // 同步
end;
LeaveCriticalSection(CS); //退出临界区
//sleep(20); // 线程挂起;
end;
end.
!----
（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）
（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）
（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）
!----
（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）
（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）
（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）
!----
（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）
（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）
（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）
!----
（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）
（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）
界面是防明小子的那个扫描工具写的，算是学习多线程的一个例子把
界面图示：
http://www.wrsky.com/attachment/3_1875.jpg
程序和源代码：
http://downloads.2ccc.com/general/internet_lan/hnxyy_scan.rar
使用D7编写，主要部分代码：
//主界面部分
unit1.pas
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, Tabs, ExtCtrls, ComCtrls, IdHTTP, Unit2;
type
TForm1 = class(TForm)
Label1: TLabel;
Edit1: TEdit;
Button1: TButton;
TabSet1: TTabSet;
StatusBar1: TStatusBar;
ProgressBar1: TProgressBar;
Panel1: TPanel;
GroupBox1: TGroupBox;
Memo1: TMemo;
Edit2: TEdit;
Button2: TButton;
Button3: TButton;
Button4: TButton;
GroupBox2: TGroupBox;
Memo2: TMemo;
GroupBox3: TGroupBox;
Memo3: TMemo;
Button5: TButton;
OpenDialog1: TOpenDialog;
procedure TabSet1Click(Sender: TObject);
procedure Button5Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
procedure Button1Click(Sender: TObject);
procedure Button4Click(Sender: TObject);
procedure Button3Click(Sender: TObject);
private
{ Private declarations }
//弹出信息框
procedure MsgBox(strMsg: string);
procedure ThreadExit(sender: TObject);
public
{ Public declarations }
end;
var
Form1: TForm1;
Thread1: array of T1; // 定义线程数组
n: integer = 0;
bool: boolean = True;
implementation
{$R *.dfm}
procedure TForm1.TabSet1Click(Sender: TObject);
begin
if TabSet1.TabIndex = 0 then
begin
GroupBox2.Visible :=true;
GroupBox3.Visible :=true;
GroupBox1.Visible :=false;
Panel1.Visible :=False;
end else
begin
GroupBox2.Visible :=false;
GroupBox3.Visible :=false;
GroupBox1.Visible :=true;
Panel1.Visible :=true;
end;
end;
procedure TForm1.Button5Click(Sender: TObject);
var
i:integer;
url:string;
begin
if Edit1.Text='' then
begin
MsgBox('请输入要检测的网站地址！');
exit;
end;
Memo3.Clear;
Memo2.Clear;
ProgressBar1.Min :=0;
ProgressBar1.Max :=Memo1.Lines.Count;
ProgressBar1.Step :=1;
ProgressBar1.Position :=0;
for i:=0 to Memo1.Lines.Count - 1 do
begin
url :=trim(Edit1.Text)+Memo1.Lines;
Memo3.Lines.Add(url);
GroupBox3.Caption :='信息：已检测'+inttostr(Memo3.Lines.Count)+'个页面';
ProgressBar1.StepIt;
if CheckUrl(url) then
begin
Memo2.Lines.Add('该URL存在! - '+url);
GroupBox2.Caption :='存在：共找到'+inttostr(Memo2.Lines.Count)+'条路径';
end;
end;
end;
procedure TForm1.MsgBox(strMsg: string);
begin
Application.MessageBox(pchar(strMsg), '提示信息', mb_iconinformation);
end;
procedure TForm1.Button2Click(Sender: TObject);
begin
if trim(Edit2.Text)'' then
Memo1.Lines.Add(trim(Edit2.Text));
end;
procedure TForm1.Button1Click(Sender: TObject);
var
i: integer;
Sum:integer;
begin
if bool then
begin
Memo3.Clear;
Memo2.Clear;
n :=0;
Sum :=Memo1.lines.count;
SetLength(Thread1,Sum); // 动态设置线程的数量
ProgressBar1.Min :=0;
ProgressBar1.Max :=sum;
ProgressBar1.Step :=1;
ProgressBar1.Position :=0;
for i := 0 to Sum - 1 do
begin
Thread1 := T1.Create(Memo1,Memo2,Memo3,i);
Thread1.OnTerminate := ThreadExit;
//ProgressBar1.StepIt;
//sleep(30);
end;
end;
bool := False; // 关闭开关
end;
procedure TForm1.ThreadExit(sender: TObject);
begin
ProgressBar1.StepIt;
Memo3.Lines.Add(trim(Edit1.Text)+Memo1.Lines[n]);
GroupBox3.Caption :='信息：已检测'+inttostr(Memo3.Lines.Count)+'个页面';
inc(n); // 线程结束后自增1
if N = Memo1.lines.count then
begin
bool := true; // 打开开关
exit;
end;
end;
procedure TForm1.Button4Click(Sender: TObject);
begin
if OpenDialog1.Execute then
Memo1.Lines.LoadFromFile(OpenDialog1.FileName);
end;
procedure TForm1.Button3Click(Sender: TObject);
begin
Memo1.Lines.Delete(Memo1.Lines.Count-1);
end;
end.
//处理线程部分
unit2.pas
unit Unit2;
interface
uses
Classes,StdCtrls,Windows,SysUtils,wininet,IdHTTP;
var
CS:TRTLCriticalSection; //定义全局临界区
type
T1 = class(TThread)
private
TmpM1,TmpM2,TmpM3: TMemo;
TmpNum: integer;
Str :string;
procedure DataMemo;
protected
procedure Execute; override;
public
constructor Create(M1,M2,M3: TMemo; Num: integer);
end;
function Get(URL: string): boolean;
function CheckUrl(url: string; TimeOut: integer = 5000): boolean;
implementation
uses Unit1;
{ T1 }
constructor T1.Create(M1,M2,M3: TMemo; Num: integer);
begin
TmpNum := Num; // 传递参数
TmpM1 :=M1; // 绑定控件
TmpM2 :=M2;
TmpM3 :=M3;
FreeOnTerminate := True; // 自动删除
InitializeCriticalSection(CS); //初始化临界区
inherited Create(False); // 直接运行
end;
function Get(URL: string): boolean;
var
IDHTTP: TIDHttp;
ss: String;
begin
Result:= False;
IDHTTP:= TIDHTTP.Create(nil);
try
try
idhttp.HandleRedirects:= true; //必须支持重定向否则可能出错
idhttp.ReadTimeout:= 30000; //超过这个时间则不再访问
ss:= IDHTTP.Get(URL);
if IDHTTP.ResponseCode=200 then
Result :=true;
except
end;
finally
IDHTTP.Free;
end;
end;
//====================== 判断网址是否存在的函数 =======================
function CheckUrl(url: string; TimeOut: integer = 5000): boolean;
var
hSession, hfile, hRequest: hInternet;
dwindex, dwcodelen: dword;
dwcode: array[1..20] of char;
res: pchar;
re: integer;
Err1: integer;
j: integer;
begin
if pos('http://', lowercase(url)) = 0 then
url := 'http://' + url;
Result := false;
InternetSetOption(hSession, Internet_OPTION_CONNECT_TIMEOUT, @TimeOut, 4);
hSession := InternetOpen('Mozilla/4.0', INTERNET_OPEN_TYPE_PRECONFIG, nil, nil, 0);
//设置超时
if assigned(hsession) then
begin
j := 1;
while true do
begin
hfile := InternetOpenUrl(hsession, pchar(url), nil, 0, INTERNET_FLAG_RELOAD, 0);
if hfile = nil then
begin
j := j + 1;
Err1 := GetLastError;
if j 5 then break;
if (Err1 12002) or (Err1 12152) then break;
sleep(2);
end
else begin
break;
end;
end;
dwIndex := 0;
dwCodeLen := 10;
HttpQueryInfo(hfile, HTTP_QUERY_STATUS_CODE, @dwcode, dwcodeLen, dwIndex);
res := pchar(@dwcode);
re := strtointdef(res, 404);
case re of
400..450: result := false;
else result := true;
end;
if assigned(hfile) then
InternetCloseHandle(hfile);
InternetCloseHandle(hsession);
end;
end;
function GetBackSpaceCount(str:string):string;
var i,iCount:integer;
begin
iCount :=50-length(str);
for i:=0 to iCount-1 do
begin
Result :=Result+' ';
end;
end;
procedure T1.DataMemo;
begin
TmpM2.Lines.Add(str+GetBackSpaceCount(str)+'线程'+inttostr(TmpNum+1)+'检测结果');
Form1.GroupBox2.Caption :='存在：共找到'+inttostr(TmpM2.Lines.Count)+'条路径';
end;
procedure T1.Execute;
begin
Str :=trim(Form1.Edit1.Text) + TmpM1.Lines[TmpNum];
EnterCriticalSection(cs); //进入临界区
if CheckUrl(Str) then
begin
Synchronize(DataMemo); // 同步
end;
LeaveCriticalSection(CS); //退出临界区
//sleep(20); // 线程挂起;
end;
end.
!----
（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）
（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）
（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）
!----
（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）
（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）
（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）
!----
（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）
（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）（本文来源于图老师网站，更多请访问https://www.tulaoshi.com/bianchengyuyan/）
来源:https://www.tulaoshi.com/n/20160219/1624474.html
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