Re: Writing and reading a file in a servlet.

["Jason R. Kretzer" <jason@OpinionOne.com>]

I do it this way.

First get the SevletContext.   I override the init method.

private ServletContext servContext = null; //this is used so we can get the real path 

	//override to get the servlet context 
	public void init(ServletConfig serConf) 
	{
		servContext = serConf.getServletContext();
	}

Then you can use the ServletContext like this to get the path

String sc = servContext.getRealPath("");

On my Tomcat installation it returns:

/usr/local/tomcat4/webapps/MyAppContext

Hope this helps!!

-Jason



On Tue, 2003-06-17 at 14:19, Lee Chalupa wrote:
> I need some direction:
>  
> In a servlet, I'm trying to serialize an object to a file.
>
> I've been trying to use the same approach as I would if I was writing a 
> java application.
> I've been trying to provide a path to FileOutputStream to create this file.
> It's not working.  It is having trouble finding the path.
>  
> I suspect I need to do something different within a servlet environment.  I 
> know that ServletContext has the getResource method that will return a URL 
> but I don't understand if there is a way to use this URL to write to the 
> file.
>  
> How should I go about writing to and reading from a file within a Servlet 
> environment?
>  
> Thanks
>  
> Lee