嘗試使用WebBrowser組件自動導航通過代碼它不起作用。導航包括登錄頁面以及之後的一些其他頁面。首頁按鈕登錄正常工作。在第二頁上,下一個按鈕在執行之前需要一個application.processmessages以使其工作。在下一頁/第三頁上,我無法自動使下一個按鈕工作。通過多個頁面的WebBrowser組件導航不起作用
CODE:
//CLICK BUTTON
function clickForm1(WebBrowser: TWebBrowser; FieldName: string): Boolean;
var
i, j: Integer;
FormItem: Variant;
begin
Result := False;
//no form on document
if WebBrowser.OleObject.Document.all.tags('FORM').Length = 0 then
begin
Exit;
end;
//count forms on document
for I := 0 to WebBrowser.OleObject.Document.forms.Length - 1 do
begin
FormItem := WebBrowser.OleObject.Document.forms.Item(I);
for j := 0 to FormItem.Length - 1 do
begin
try
//when the fieldname is found, try to fill out
if FormItem.Item(j).Name = FieldName then
begin
FormItem.Item(j).click;
Result := True;
end;
except
Exit;
end;
end;
end;
end;
//SEARCH INSIDE THE MEMO
procedure TForm2.Button7Click(Sender: TObject);
var
i: Integer;
a: string;
begin
Memo1.Lines.Add('');
Memo1.Lines.Text := ' ' + Memo1.Lines.Text;
for i := 0 to Length(Memo1.Lines.Text) - Length(edit7.Text) do
begin
a := Copy(Memo1.Lines.Text, i, Length(edit7.Text));
if CheckBox1.Checked = True then //FIND CASE Sensitive
begin
if a = edit7.Text then
begin
find := True;
x := 2;
Memo1.Lines.Text := Copy(Memo1.Lines.Text, 2, Length(Memo1.Lines.Text) - 1);
Memo1.SetFocus;
Memo1.SelStart := i - 2;
Memo1.SelLength := Length(edit7.Text);
break;
end;
end
else
begin
if lowercase(a) = lowercase(edit7.Text) then
begin
Memo1.Lines.Text := Copy(Memo1.Lines.Text, 2, Length(Memo1.Lines.Text) - 1);
find := True;
x := 2;
Memo1.SetFocus;
Memo1.SelStart := i - 2;
Memo1.SelLength := Length(edit7.Text);
break;
end;
end;
end;
end;
//HTML TO MEMO
procedure TForm2.Button6Click(Sender: TObject);
var
iall : IHTMLElement;
begin
if Assigned(WebBrowser1.Document) then
begin
iall := (WebBrowser1.Document AS IHTMLDocument2).body;
while iall.parentElement <> nil do
begin
iall := iall.parentElement;
end;
memo1.Text := iall.outerHTML;
end;
end;
procedure TForm2.WebBrowser1DocumentComplete(ASender: TObject;
const pDisp: IDispatch; var URL: OleVariant);
var
Document: IHtmlDocument2;
CurWebrowser : IWebBrowser;
TopWebBrowser: IWebBrowser;
WindowName : string;
ovElements: OleVariant;
i: Integer;
begin
CurWebrowser := pDisp as IWebBrowser;
TopWebBrowser := (ASender as TWebBrowser).DefaultInterface;
if CurWebrowser=TopWebBrowser then
begin
button6.Click; // HTML TO MEMO
TRY
button7.Click; //SEARCH LOGIN FORM
if find=true then Begin
clickForm1(WebBrowser1, 'move'); //CLICK LOGIN BUTTON
End Else begin Null; End;
FINALLY find:=false; END;
TRY
button8.Click; //SEARCH HOME (AFTER LOGIN) FORM
if find1=true then Begin
Application.ProcessMessages;//NEEDED IN ORDER THE BUTTON TO BE PRESSED.
clickForm1(WebBrowser1, 'refresh'); //CLICK NEXT PAGE BUTTON
End;
FINALLY find1:=false;END;
TRY
button9.Click; //SEARCH WORKLIST FORM
if find2=true then Begin
clickForm1(WebBrowser1, 'next'); //CLICK NEW FORM BUTTON
End;
FINALLY find2:=false;END;
end;
end;
如果頁面被回發到服務器(例如「移動」),則需要再次處理DocumentComplete上的下一頁/步驟,因爲webbrowser將加載新文檔。所以每個步驟都應該在每個DocumentComplete事件上分開處理。如果動作是在客戶端使用javascript完成的,則需要給DOM一些時間來處理空閒的動作,或者直接掛鉤到腳本事件中。 – kobik 2014-11-05 08:00:15
謝謝你的回答。我怎樣才能再次使用onDocumentComplete方法?在上面的例子中,我插入了一個Try/Except方法,以便每次搜索加載的網頁的標題並按相應的按鈕。 – VaVel 2014-11-05 08:24:17
例如,您可以檢查URL或每次啓動onDocumentComplet時檢查DOM,以確定接下來要處理的步驟/頁面。 – kobik 2014-11-05 08:30:18