Re: Tomcat server.xml context-specific configuration

[johannes . fiala]

Hi there,

Here's what I found so far:

1.) I found that the more modern way of accessing scalar environment 
attributes seems to be JNDI.
2.) JNDI environment entries can be stored in web.xml
3.) 
web.xml file:
    <env-entry>
      <env-entry-name>testvaluewebxml</env-entry-name>
      <env-entry-value>value1</env-entry-value>
      <env-entry-type>java.lang.String</env-entry-type>
    </env-entry>

4.) 
Lookup using Java Code:
 try {
        Context globalctx = new InitialContext();
        String envEntry = null;

        envEntry = (String) 
globalctx.lookup("java:comp/env/testvaluewebxml");
        out.println("envEntry testvaluewebxml: " + envEntry);
} catch (Exception e) {
        out.println("<li>Cannot get env-entry on JNDI " + e + "</li>");
        return;
}

I didn't find such an example in the JNDI resources howto 
(http://jakarta.apache.org/tomcat/tomcat-4.1-doc/jndi-resources-howto.html) 
, but I think it would be cool to have such one.

p.s. Does anybody know how to access e.g. java:comp/env/ to read all 
environment entries available? Maybe even a code sample to share??

thx alot
Johannes