VB如何执行Telnet命令（不出现命令提示符窗口）

[zanze]

不希望用生成批处理BAT后用Shell去调用，然后隐藏 提示符窗口 的做法！

Telnet进去后，还得执行3个命令，用VBS脚本我会做，但是运行了还是会出现 提示符窗口

我希望做出来得结果是：能在VB的TEXT文本框里看到执行后返回的数据，全部过程不需要调用到CMD提示符窗口

Telnet 命令如下：
-----------------------------------------------------

telnet members.3322.org 80
GET /dyndns/update?system=dyndns&hostname=myDB.3322.org&wildcard=OFF&offline=NO HTTP/1.1
Host: members.3322.org
Authorization: Basic bXlEQjoxMjM0NTY=

------------------------------------------------------

VBS脚本是这样的：
--------------------------------------------------------------------------------------

Set WshShell = CreateObject("WScript.Shell")
WshShell.Run "telnet members.3322.org 80"
WScript.Sleep(1200)
WshShell.SendKeys "GET /dyndns/update?system=dyndns&hostname=myDB.3322.org&wildcard=OFF&offline=NO HTTP/1.1{enter}"
WScript.Sleep(500)
WshShell.SendKeys "Host: members.3322.org{enter}"
WScript.Sleep(500)
WshShell.SendKeys "Authorization: Basic bXlEQjoxMjM0NTY={enter}"
WScript.Sleep(500)
WshShell.SendKeys "{enter}"

---------------------------------------------------------------------------------------

希望高手指教！！！！！

[笨狗先飞]

可以用winsock控件直接做

telnet 协议你可以用sanddata 一行一行给他发指令的,用vbcrlf加在每行结尾就行了

[笨狗先飞]

一个text1控件和一个winsock1控件
大致代码就这样子

Option Explicit

Private Declare Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Long)

Private Sub Form_Load()
    Winsock1.Protocol = sckTCPProtocol
    Winsock1.Connect "members.3322.org", 80
End Sub

Private Sub Winsock1_Connect()
    Dim Str As String
    Str = "GET /dyndns/update?system=dyndns&hostname=myDB.3322.org&wildcard=OFF&offline=NO HTTP/1.1 " & vbCrLf
    Str = Str & "Host: members.3322.org" & vbCrLf
    Str = Str & "Authorization: Basic bXlEQjoxMjM0NTY=" & vbCrLf
    Winsock1.SendData Str
End Sub

Private Sub Winsock1_DataArrival(ByVal bytesTotal As Long)
    Dim Data As String
    Winsock1.GetData Data
    Text1.Text = Data
End Sub

[zanze]

能否用 API ，别用winsock控件呢？

带多个控件感觉麻烦，HOHO~~~~

[lyserver]

用API可以实现啊。不过只实现登录，一点用也没有，而实现一个完整的Telnet客户端，工作量又太大，所以建议楼主不妨自己GOOGLE一下，慢慢地实现一个。

[zanze]

2楼的代码也不正确，没通过

[zanze]

没报错，但是运行后没产生连接，TEXT里也没接收到返回的数据

[孤独剑_LPZ]

路过,顶一下

[十豆三]

VBS 改为如下：

Set WshShell = Wscript.CreateObject("WScript.Shell") 
a = WshShell.Run ("telnet members.3322.org 80" , 0) 
WScript.Sleep(1200) 
WshShell.SendKeys "GET /dyndns/update?system=dyndns&hostname=myDB.3322.org&wildcard=OFF&offline=NO HTTP/1.1{enter}" 
WScript.Sleep(500) 
WshShell.SendKeys "Host: members.3322.org{enter}" 
WScript.Sleep(500) 
WshShell.SendKeys "Authorization: Basic bXlEQjoxMjM0NTY={enter}" 
WScript.Sleep(500) 
WshShell.SendKeys "{enter}"

[一笑拔剑]

用管道可以完成你的这个任务

pipe技术

等明天我找下代码来再给你

[一笑拔剑]

一是可以用vbhide的方式启动窗口，然后用>重定向符输出到txt文件。

另外一个比较高级的技术

是使用管道技术

VB下用管道方式运行dos命令，可以把dos命令返回的结果显示在自己的窗口上。

就相当于在dos窗口和vb程序间建立了一个通道

在管道里开启一个进程，

让程序在管道里运行，

等待进程结束，

后将留在管道里的程序执行信息文件读取出来。

[一笑拔剑]

代码是抄来的 网上自己搜索下

我没有验证

Option Explicit
    Option Base 0
    'Code written by JoshT. Use at your own risk
     
    Private Declare Function CreateProcess Lib "kernel32" Alias "CreateProcessA" _
     (ByVal lpApplicationName As String, _
     ByVal lpCommandLine As String, _
     lpProcessAttributes As SECURITY_ATTRIBUTES, _
     lpThreadAttributes As SECURITY_ATTRIBUTES, _
     ByVal bInheritHandles As Long, _
     ByVal dwCreationFlags As Long, _
     lpEnvironment As Any, _
     ByVal lpCurrentDirectory As String, _
     lpStartupInfo As STARTUPINFO, _
     lpProcessInformation As PROCESS_INFORMATION) As Long
     
    Private Declare Function CloseHandle Lib "kernel32.dll" (ByVal hObject As Long) As Long
     
    Private Declare Function ReadFile Lib "kernel32" (ByVal hFile As Long, _
     lpBuffer As Any, ByVal nNumberOfBytesToRead As Long, lpNumberOfBytesRead As Long, _
     lpOverlapped As Long) As Long
     
    Private Declare Function WaitForSingleObject Lib "kernel32" _
     (ByVal hHandle As Long, ByVal dwMilliseconds As Long) As Long
     
    Private Declare Function CreatePipe Lib "kernel32" (phReadPipe As Long, _
     phWritePipe As Long, lpPipeAttributes As SECURITY_ATTRIBUTES, _
     ByVal nSize As Long) As Long
     
    Private Type STARTUPINFO
     cb As Long
     lpReserved As String
     lpDesktop As String
     lpTitle As String
     dwX As Long
     dwY As Long
     dwXSize As Long
     dwYSize As Long
     dwXCountChars As Long
     dwYCountChars As Long
     dwFillAttribute As Long
     dwFlags As Long
     wShowWindow As Integer
     cbReserved2 As Integer
     lpReserved2 As Long
     hStdInput As Long
     hStdOutput As Long
     hStdError As Long
    End Type
     
    Private Type PROCESS_INFORMATION
     hProcess As Long
     hThread As Long
     dwProcessId As Long
     dwThreadId As Long
    End Type
     
    Private Type SECURITY_ATTRIBUTES
     nLength As Long
     lpSecurityDescriptor As Long
     bInheritHandle As Long
    End Type
     
    Private Const NORMAL_PRIORITY_CLASS As Long = &H20&
     
    Private Const STARTF_USESTDHANDLES As Long = &H100&
    Private Const STARTF_USESHOWWINDOW As Long = &H1&
    Private Const SW_HIDE As Long = 0&
     
    Private Const INFINITE As Long = &HFFFF&
     
     
     
    Public Function RunCommand(CommandLine As String) As String
     Dim si As STARTUPINFO 'used to send info the CreateProcess
     Dim pi As PROCESS_INFORMATION 'used to receive info about the created process
     Dim retval As Long 'return value
     Dim hRead As Long 'the handle to the read end of the pipe
     Dim hWrite As Long 'the handle to the write end of the pipe
     Dim sBuffer(0 To 63) As Byte 'the buffer to store data as we read it from the pipe
     Dim lgSize As Long 'returned number of bytes read by readfile
     Dim sa As SECURITY_ATTRIBUTES
     Dim strResult As String 'returned results of the command line
     
     'set up security attributes structure
     With sa
     .nLength = Len(sa)
     .bInheritHandle = 1& 'inherit, needed for this to work
     .lpSecurityDescriptor = 0&
     End With
     
     'create our anonymous pipe an check for success
     ' note we use the default buffer size
     ' this could cause problems if the process tries to write more than this buffer size
     retval = CreatePipe(hRead, hWrite, sa, 0&)
     If retval = 0 Then
     Debug.Print "CreatePipe Failed"
     RunCommand = ""
     Exit Function
     End If
     
     'set up startup info
     With si
     .cb = Len(si)
     .dwFlags = STARTF_USESTDHANDLES Or STARTF_USESHOWWINDOW 'tell it to use (not ignore) the values below
     .wShowWindow = SW_HIDE
    ' .hStdInput = GetStdHandle(STD_INPUT_HANDLE)
     .hStdOutput = hWrite 'pass the write end of the pipe as the processes standard output
    ' .hStdError = GetStdHandle(STD_ERROR_HANDLE)
     End With
     
     'run the command line and check for success
     retval = CreateProcess(vbNullString, _
     CommandLine & vbNullChar, _
     sa, _
     sa, _
     1&, _
     NORMAL_PRIORITY_CLASS, _
     ByVal 0&, _
     vbNullString, _
     si, _
     pi)
     If retval Then
     'wait until the command line finishes
     ' trouble if the app doesn't end, or waits for user input, etc
     WaitForSingleObject pi.hProcess, INFINITE
     
     'read from the pipe until there's no more (bytes actually read is less than what we told it to)
     Do While ReadFile(hRead, sBuffer(0), 64, lgSize, ByVal 0&)
     'convert byte array to string and append to our result
     strResult = strResult & StrConv(sBuffer(), vbUnicode)
     'TODO = what's in the tail end of the byte array when lgSize is less than 64???
     Erase sBuffer()
     If lgSize <> 64 Then Exit Do
     Loop
     
     'close the handles of the process
     CloseHandle pi.hProcess
     CloseHandle pi.hThread
     Else
     Debug.Print "CreateProcess Failed" & vbCrLf
     End If
     
     'close pipe handles
     CloseHandle hRead
     CloseHandle hWrite
     
     'return the command line output
     RunCommand = Replace(strResult, vbNullChar, "")
    End Function


Private Sub about_Click()
frmAbout.Show
End Sub

Private Sub begin_Click()
Dim i As Integer
Dim p As String
Dim q As String
Dim com As String
For i = 1 To 400
    p = "c:\test\(" + Str(i) + ").html"
    q = Str(i) + ".html"
    com = "rename " + p + " " + q
    Text2.Text = com
    Text1.Text = Text1.Text + RunCommand(com)
    'Text1.Text = RunCommand(Text2.Text)
Next i

End Sub

[笨狗先飞]

我倒了,以 g 或者 p 打头的数据包winsock控件居然拒发~ 程序没有错,控件拒绝发送

[笨狗先飞]

报错吗?
我这里可以运行的啊.

网上有用api实现winsock功能的类,代码很多啊,关键分清楚要做的是什么,陷在那堆API代码里是不是值得

[zanze]

自己找到解决方法了，全部API实现

[xlmlj2008]

楼上的能给我发个吗？我也想实现TELNET登陆然后在简单的发送命令，谢谢了
发到[e-mail]
不胜感激！！

[yanhaotian1]

楼上的能给我发个吗？我也想实现TELNET登陆然后在简单的发送命令，谢谢了
发到[e-mail]
不胜感激！！

[Peize93]

楼上的能给我发个吗？我想使用API实现TELNET登陆然后在简单的发送命令，现在我不得不调用SecureCRT完成
邮箱 [e-mail]
不胜感激！！

[dongwenkai]

[Quote=引用 14 楼 的回复:]

自己找到解决方法了，全部API实现
[/Quote]

楼主能给我发份么 [e-mail]

谢谢