On Thu, 3 Jan 2002, Chen, Gin wrote:
> I had the same issue.. I cant find anything in the APIs that offer
> support for multiple values for the same param in the init params
> methods. I had to use a second XML file and use a XSL file to load
> it in as an array. The approach of using an XSL is so that I can use
> the array in javascript only. If you want to be able to use the
> values in Server side code, you have to write a simple XML parser.
Another possibility is to define the param (in web.xml) as a
comma-separated value (csv) and parse it when you get it. For
example:
<init-param>
<param-name>team</param-name>
<param-value>GoodGuys,Enemy</param-value>
</init-param>
Then:
...
String teamNameCSV = config.getInitParameter("appName");
String[] teamNames = StringUtils.splitCSV(teamNameCSV);
...
(StringUtils is my own class; it contains mostly static functions,
including ones to do this parsing.)
Parsing a comma-delimited string (or with some other delimiter, like
colon) into an array of strings is something I've found useful, so I
already have classes/methods to do that. (But then I do a lot of
perl, where split is so easy and natural :-). And I'm sure there are
other Java string-manipulation packages out there that have simile
methods.
Note: I haven't actually tried this, I assume there are no gotchas,
like that commas aren't allowed in param values.
> -----Original Message-----
> From: Gerry Scheetz [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, January 03, 2002 1:00 PM
> To: [EMAIL PROTECTED]
> Subject: loading array of data from InitParameter
>
>
> I am trying to keep from having to constantly edit and recompiling my
> servlet class. To do this I would like to move the information that is
> stored in an array to the applications web.xml file and loaded in the init
> method rather than hard coding the creation of the array.
>
> The web.xml file would look like this:
> <init-param>
> <param-name>team</param-name>
> <param-value>GoodGuys</param-value>
> </init-param>
> <init-param>
> <param-name>team</param-name>
> <param-value>Enemy</param-value>
> </init-param>
>
> The following is how I usually load the information from the web.xml file.
> ServletConfig config = getServletConfig();
> String teamName = config.getInitParameter("appName");
>
> But do not know how to load the information into an array of String objects.
Milt Epstein
Research Programmer
Software/Systems Development Group
Computing and Communications Services Office (CCSO)
University of Illinois at Urbana-Champaign (UIUC)
[EMAIL PROTECTED]
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