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Reading hyperlink in excel through Java

purnima Nair
Greenhorn

Joined: Oct 23, 2008
Posts: 8
Hi all,

I am using JExcel API to read excel in java.
Now the excel contains a column with hyperlinks.I need to read the contents(html file) of that hyperlink and put into another text file.

Is there any way in java where we can read the hyperlink content without actually clicking the link in the excel.

Please help.
Thanks,
Ulf Dittmer
Marshal

Joined: Mar 22, 2005
Posts: 39535
    
  27
See java.net.URL.getContent(). What it returns is implementation-specific, but most likely an InputStream.


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Rob Spoor
Sheriff

Joined: Oct 27, 2005
Posts: 19541
    
  16

URL.openStream() will definitely return an InputStream.


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purnima Nair
Greenhorn

Joined: Oct 23, 2008
Posts: 8
Thanks for the reply...
I used the following code to get the contents of the link
URL url = new URL("http://www.google.com");
HttpURLConnection uc = (HttpURLConnection) url.openConnection();
uc.setRequestProperty("User-Agent", "");
// Read all the text returned by the server
BufferedReader in = new BufferedReader(new InputStreamReader(uc.getInputStream()));
String str;
while ((str = in.readLine()) != null) {
// str is one line of text; readLine() strips the newline character(s)
System.out.println(str);
}
in.close();
But,it is giving error java.net.UnknownHostException: www.google.com
I am working on the LAN.If i exceute the same code outside LAN its working..What could be wrong?

Thanks,
Campbell Ritchie
Sheriff

Joined: Oct 13, 2005
Posts: 36453
    
  15
Don't know. Your code is too difficult to read without code tags.
purnima Nair
Greenhorn

Joined: Oct 23, 2008
Posts: 8
The code is as below:


Am getting java.net.UnknownHostException: www.google.com
Sandeep Sanaboyina
Ranch Hand

Joined: Dec 14, 2009
Posts: 72
You may need a proxy for connecting. Use this code for setting the proxy

Hope it helps.


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purnima Nair
Greenhorn

Joined: Oct 23, 2008
Posts: 8
Its not working even by setting the proxy by using

I am able to connect to www.google.com without the proxyHost from the LAN.But when I connect using


Its gives unknownHostException in the above line.
Sandeep Sanaboyina
Ranch Hand

Joined: Dec 14, 2009
Posts: 72
Well, The following code worked for me.And when I commented out the 2 System.setProperty lines, I got an java.net.UnknownHostException: www.google.com
Rob Spoor
Sheriff

Joined: Oct 27, 2005
Posts: 19541
    
  16

purnima Nair wrote:Its not working even by setting the proxy by using

you did replace these values with your company's proxy settings, right?

I am able to connect to www.google.com without the proxyHost from the LAN.

Do you mean from your browser? Are you sure that there is no proxy filled in for you?

If you open a command window and type in "ping www.google.com", can it resolve the host name?
 
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