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vb webbrowser 保存網頁源碼的各種…


2019-09-05 07:34:02 (4200)



我在網上找到使用rft控件保存webbrowse文本  txtHtml是RichTextBox
txtHTML.Text = WebBrowser1.document.body.innerText
´flag :rsftext 保存為txt文件,strtmp文件路徑
txtHTML.saveFile strtmp, rtfText




將其name屬性設置為web


 


Private Sub Command1_Click()
    web.Navigate ""
End Sub


Private Sub web_DocumentComplete(ByVal pDisp As Object, URL As Variant)
Set doc = web.Document
For Each i In doc.All
    msgbox typename(i)
    Text1.Text = Text1.text & vbclrf & i.innertext
Next
End sub




===========================================================================================
轉載


´引用 Microsoft HTML Object Library




    Dim oDoc As HTMLDocument
    Dim oElement As Object
    Dim oTxtRgn As Object
    Dim sSelectedText As String
   
    Set oDoc = WebBrowser1.Document´獲得文檔對象
    Set oElement = oDoc.getElementById("T1")´獲得ID="T1"的對象
    Set oTxtRgn = oDoc.selection.createRange´獲得文檔當前正選擇的區域對象
  
    sSelectedText = oTxtRgn.Text´選擇區域文本賦值


 


    oElement.Focus´"T1"對象獲得焦點


    oElement.Select´全選對象"T1"


    Debug.Print "你選擇了文本:" & sSelectedText




上麵這段兒還附送了其他功能,嗬嗬。精簡一下是這樣:
    Dim oDoc As Object
    Dim oTxtRgn As Object
    Dim sSelectedHTML As String
   
    Set oDoc = WebBrowser1.Document ´獲得文檔對象
    Set oTxtRgn = oDoc.selection.createRange ´獲得文檔當前正選擇的區域對象
  
    sSelectedHTML = oTxtRgn.htmlText ´選擇區域文本賦值




    Text1.Text=sSelectedHTML ´文本框顯示抓取得HTML源碼
    ......´或者繼續分析源碼




==================================================================================================


我用WebBrowser取得網頁源碼,直接運行正常,但在編譯後出錯
Private Sub Command1_Click()
WebBrowser1.Navigate ""
End Sub


 


Private Sub WebBrowser1_DownloadComplete()
´頁麵下載完畢
Dim doc, objhtml
Set doc = WebBrowser1.Document


Set objhtml = doc.body.createtextrange()
If Not IsNull(objhtml) Then
Text1.Text = objhtml.htmltext
End If




End Sub


 


我用WebBrowser取得網頁源碼,直接運行正常,但在編譯後出錯




提示:實時錯誤“91”    Object 變量或 with 塊變量沒有設置
可能是沒有下載完所致,


Private Sub WebBrowser1_DownloadComplete()
if webbrowser.busy=false then
Dim doc, objhtml
Set doc = WebBrowser1.Document




Set objhtml = doc.body.createtextrange()
If Not IsNull(objhtml) Then
Text1.Text = objhtml.htmltext
End If
end if
End Sub


你要得網頁源碼用 xmlhttp比較好




先引用 msxml


Dim x As New MSXML2.XMLHTTP
 x.open "get", "", False
 x.send


MsgBox StrConv(x.responseBody, vbUnicode)


 


 


 


===============================================================================================
我在網上找到使用rft控件保存webbrowse文本  txtHtml是RichTextBox
txtHTML.Text = WebBrowser1.document.body.innerText
´flag :rsftext 保存為txt文件,strtmp文件路徑
txtHTML.saveFile strtmp, rtfText




=====================================================================================




Private Sub WebBrowser1_DownloadComplete()
    Dim objHtml As Object
    ´下載完成時狀態欄顯示“Link Finished”
    Set objHtml = Me.WebBrowser1.Document.Body.Createtextrange()
    If Not IsNull(objHtml) Then
        Text1.Text = objHtml.htmltext
    End If
End Sub
使用inet控件
Source1 = Inet1.OpenURL("")
If Source1 <> "" Then
RichTextBox1.Text = Source1
Me.Inet1.Cancel
Else
Source = MsgBox("Source code is not available.", vbInformation, "Source Code")
End If


Private Sub Command1_Click()
    Text1.Text = WebBrowser1.Document.body.innerHTML
End Sub




==================================================================================
加入timer,commandbutton,text
private sub command1_click()
webbrowser1.navigate
timer1.enabled=true
end sub




private sub timer1_timer()
dim doc,objhtml as object
dim i as integer
dim strhtml as string


if not webbrowser1.busy then
set doc=webbrowser1.document
i=0
set objhtml=doc.body.createtextrange()
if not isnull(objhtml) then
text1.text=objhtml.htmltext
end if
timer1.enabled=false
end if
end sub


 




Dim doc, objhtml As Object
If Not webbrowser1.Busy Then
         Set doc = webbrowser1.Document
         Set objhtml = doc.body.createtextrange()
         If Not IsNull(objhtml) Then
            text1.text=objhtml.htmltext
         End If
         Set doc = Nothing
         Set objhtml = Nothing


End If


===================================================================================================
或者試試用InternetReadFile,效果也可以:
Option Explicit


 


Private Declare Function InternetOpen Lib "wininet.dll" Alias "InternetOpenA" ( _
                    ByVal sAgent As String, ByVal lAclearcase/" target="_blank" >ccessType As Long, _
                    ByVal sProxyName As String, ByVal sProxyBypass As String, _
                    ByVal lFlags As Long) As Long
Private Declare Function InternetOpenUrl Lib "wininet.dll" Alias "InternetOpenUrlA" ( _
                    ByVal hInternetSession As Long, ByVal sUrl As String, _


 


                    ByVal sHeaders As String, ByVal lHeadersLength As Long, _
                    ByVal lFlags As Long, ByVal lContext As Long) As Long
Private Declare Function InternetReadFile Lib "wininet.dll" ( _
                    ByVal hFile As Long, ByVal sBuffer As String, _
                    ByVal lNumBytesToRead As Long, _
                    lNumberOfBytesRead As Long) As Integer
Private Declare Function InternetCloseHandle Lib "wininet.dll" ( _
                    ByVal hInet As Long) As Integer


Private Const INTERNET_FLAG_NO_CACHE_WRITE = &H4000000
Dim s


 


Private Function GetUrlFile(stUrl As String) As String
    Dim lgInternet As Long, lgSession As Long
    Dim stBuf As String * 1024
    Dim inRes As Integer
    Dim lgRet As Long
    Dim stTotal As String
    stTotal = vbNullString
    lgSession = InternetOpen("VBTagEdit", 1, vbNullString, vbNullString, 0)
    If lgSession Then
        lgInternet = InternetOpenUrl(lgSession, stUrl, vbNullString, _
                                     0, INTERNET_FLAG_NO_CACHE_WRITE, 0)
        If lgInternet Then
            Do


 


                inRes = InternetReadFile(lgInternet, stBuf, 1024, lgRet)
                stTotal = stTotal & Mid$(stBuf, 1, lgRet)
            Loop While (lgRet <> 0)
        End If
        inRes = InternetCloseHandle(lgInternet)
    End If
    GetUrlFile = stTotal
End Function




Private Sub Command1_Click()
    Text1.Text = GetUrlFile("")
End Sub


=====================================================================================================


 


Set vDoc = WebBrowser1.Document
´獲取網頁的源碼
For Each o In vDoc.All
   DoEvents
   htmlpage = htmlpage & o.innerHTML
Next
然後用寫二進製文件的方法將htmlpage的內容寫入到.html文件中如果這個網頁中含有框架那麼要對框加進行處理。
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原文鏈接:https://blog.csdn.net/esonbest1234/article/details/50729089
本文版权:http://www.ndfweb.cn/news-735.html
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