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Vb自动读取本地HTML VB获取网页源代码的五种方法

时间:2021-02-12 10:59:19

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Vb自动读取本地HTML VB获取网页源代码的五种方法

方法1:inet控件调用方法 Inet1.OpenURL

添加microsoft ineternet transfor conctrol6.0 控件

方法2:XMLHTTP

'如果出现乱码,UTF-8可改为GB2312

Public Function GetBody(ByVal URL$, Optional ByVal Coding$ = "GB2312")

Dim ObjXML

On Error Resume Next

Set ObjXML = CreateObject("Microsoft.XMLHTTP")

With ObjXML

.Open "Get", URL, False, "", ""

.setRequestHeader "If-Modified-Since", "0"

.Send

GetBody = .ResponseBody

End With

GetBody = BytesToBstr(GetBody, Coding)

Set ObjXML = Nothing

End Function

Public Function BytesToBstr(strBody, CodeBase)

Dim ObjStream

Set ObjStream = CreateObject("Adodb.Stream")

With ObjStream

.Type = 1

.Mode = 3

.Open

.Write strBody

.Position = 0

.Type = 2

.Charset = CodeBase

BytesToBstr = .ReadText

.Close

End With

Set ObjStream = Nothing

End Function

Private Sub Command1_Click()

u = "/search?word=vb&lm=0&od=0&fr=top_search"

Text1.Text = GetBody(u) '最好用richbox富文本框

End Sub

方法3:WinHttp

Private Sub Command4_Click()

Set IEread = CreateObject("WinHttp.WinHttpRequest.5.1")

CallByName IEread, "Open", VbMethod, "GET", URLaddr, True

CallByName IEread, "Send", VbMethod

CallByName IEread, "WaitForResponse", VbMethod

aa = CallByName(IEread, "ResponseText", VbMethod)

RichTextBox1.Text = aa

End Sub

方法4:'利用WebBrowser控件

Private Sub Command1_Click()

Dim strContent As String, i As Integer

Text1 = ""

For i = 0 To WebBrowser1.Document.All.length - 1

If WebBrowser1.Document.All(i).tagName = "HTML" Then

strContent = strContent & WebBrowser1.Document.All(i).innerHTML

Exit For

End If

Next i

Text1 = strContent

End Sub

方法5:利用Inet控件的Execute方法

Private Sub Command5_Click()

Text1 = ""

Inet1.Execute Text2.Text, "GET"

While Inet1.StillExecuting

DoEvents

Wend

Text1.Text = Inet1.GetChunk(Len(Text1.Text))

End Sub

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