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Coding question
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Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Titre:
Divers
Thread ID:
01555334
Message ID:
01555338
Vues:
60
>>>With the help of some skilled VFP coders on the UT, I am having some fun with a web bot.
>>>I had success by splitting it into two parts. The first, using a homepage URL retrieved the sub URLs from the href HTML in the a home page
>>>The second part used the (saved in a table) URLs to navigate to the pages and retreive the text.
>>>
>>>Now I am having trouble merging the concept into one piece of code. Here's what's happening:
>>>
>>>I use this segment of code to get the href URLS
>>>
>>>o = CREATEOBJECT("InternetExplorer.Application")
>>>o.VISIBLE=.F.
>>>o.NAVIGATE(lcURL)
>>>FOR EACH loLink IN o.DOCUMENT.Links
>>>lcURL = [ ] + loLink.Href + [ ]
>>>
>>>o.NAVIGATE(lcURL) 
>>>* The error generated is OLE Error code 0x80070005: Access is denied.
>>>
>>>* I want to navigate to each lcURL as it is retreived, process the text and then navigate to the next href lcURL
>>>* until the website's href URLs have been processed, then move on to the next homepage and process its href URLs
>>>
>>>ENDFOR && below a lot of filtering code etc.
>>>
>>>Is there a solution for this or should I collect all the href URLs from all the sites into a table and then proceed with return visits to collect text?
>>
>>
>>Maybe you should wait till ReadyState = 4 :
>>
>>...
>>o.NAVIGATE(lcURL)
>>DO WHILE NOT o.ReadyState == 4
>>   InKey(0.1)
>>ENDDO
>>..
>>
>
>ReadyState may never become 4 and the program will stuck in endless loop

OK, :-)
And some timeout.
ldDateTime = DATETIME()

o.NAVIGATE(lcURL)
lnTimeOut = .f.
DO WHILE NOT o.ReadyState == 4
   IF DATETIME() - ldDateTime < 10 && 10 secs timeot
      lnTimeOut = .t.
      EXIT
   ENDIF
   InKey(0.1)
ENDDO
IF m.lnTimeOut
   ****
ENDIF
Against Stupidity the Gods themselves Contend in Vain - Johann Christoph Friedrich von Schiller
The only thing normal about database guys is their tables.
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