Check this class Resource.java created by Jason Hunter of servlets.com fame to locate a file on the classpath first and then class loader getResource().
Vijay -----Original Message----- From: Craig R. McClanahan [mailto:[EMAIL PROTECTED] Sent: Tuesday, July 29, 2003 11:36 AM To: Struts Users Mailing List Subject: Re: Opening/reading a file from a Struts application... On Tue, 29 Jul 2003, Davide Bruzzone wrote: > Date: Tue, 29 Jul 2003 11:57:41 -0600 > From: Davide Bruzzone <[EMAIL PROTECTED]> > Reply-To: Struts Users Mailing List <[EMAIL PROTECTED]> > To: Struts Users Mailing List <[EMAIL PROTECTED]> > Subject: Opening/reading a file from a Struts application... > > Greetings all... > > I'm trying to load and read a text file (on the server's filesystem) > from within a Struts application. I'd like to be able to put the file > in the WEB-INF, or the WEB-INF/classes directory, but am having > trouble finding the file (i.e. I'm having trouble obtaining the path > that I need in order to open the file), and reading it... > > Here's what my research has turned up: > > // Something like this will return an InputStream. This is fine for > properties files // since you can load a properties file by passing an > InputStream to the load method > // on a Properties object > Thread.currentThread().getContextClassLoader().getResourceAsStream("my.p > roperties"); > This only works on files visible to the class loader (i.e. files in /WEB-INF/classes, or packaged in JARs inside /WEB-INF/lib). To read general resources in your webapp, try ServletContext.getResourceAsStream() instead. You pass it a context-relative path like "/WEB-INF/my.properties". > The problem with this is that the methods that I'm using to read the > contents of files takes either a string that represents the file name, > or a File object... The methods then calculate the file's length, read > the file into an array of bytes, and return the contents of the array > in various forms (i.e. An array of bytes, a string, etc.). > That's not going to be portable, because you cannot assume that webapp resources actually live in the filesystem - you might be running straight from a WAR file, or in a container that puts all the static resources in BLOBs in a database, or ... If you really need file i/o access to this stuff, you should create an initialization parameter pointing at the directory containing the relevant files, and then access then outside your webapp hierarchy. > Does anyone have any suggestions about how best to go about doing this > (I could change the methods that read the contents of files into > strings, but I'm not sure exactly how to go about doing this). > > Any help would be greatly appreciated... > > Cheers... > > Dave > Craig --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
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