On Monday 25 October 2004 18:52, Peter Rossbach wrote:
> I think you can used ${catalina.base} or other system env variables
> inside server.xml and context.xml
> for an absolute path information. Only problem with this handling is,
> don't save your server.xml oder context.xml
> with the admin application.
Ah, good to know! I was unaware that Tomcat substitute properties in
context.xml. I dumped the properties in my servlet (an axis-based web
service, actually) and there doesn't seem to be a suitable property
available. But as I'm using Spring and Log4j anyway, I noticed that
org.springframework.web.util.Log4jWebConfigurer in conjunction with
org.springframework.web.util.Log4jConfigListener
sets an appropriate property. It needs some declarations in web.xml:
<context-param>
<param-name>webAppRootKey</param-name>
<param-value>mywebservice.root</param-value>
</context-param>
<context-param>
<param-name>log4jConfigLocation</param-name>
<param-value>/WEB-INF/log4j.properties</param-value>
</context-param>
Then, in context.xml
<Context path="/mywebservice"
docBase="/home/michael/workspace/mywebservice/build">
<Resource name="jdbc/verzeichnisdb" auth="Container"
type="javax.sql.DataSource" username="sa" password=""
driverClassName="org.hsqldb.jdbcDriver"
url="jdbc:hsqldb:file:
${mywebservice.root}/WEB-INF/db/verzeichnisdb;ifexists=true"
maxActive="3" maxIdle="2"/>
</Context>
It's not pretty, rather fragile, really, as it depends on the right
order of evaluation. The url attribute must be evaluated after
mywebservice.root is already set.
> Tipp: use a db resource path outside your application, than deployer
> can delete all
> files without you lose the data! ;-)
Thanks for reminding me. In this case it's okay to lose the data as it's
read-only reference data.
Michael
--
Michael Schuerig The usual excuse for our most unspeakable
mailto:[EMAIL PROTECTED] public acts is that they are necessary.
http://www.schuerig.de/michael/ --Judith N. Shklar
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