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From "Pid *" <...@pidster.com>
Subject Re: [tomcat-6.0.33] META-INF/context.xml Environment not working
Date Thu, 22 Sep 2011 15:50:20 GMT
Why not do your initialisation in the Servlet.init() method?


p

On 22 Sep 2011, at 16:42, Tim Watts <tim@cliftonfarm.org> wrote:

> Hello,
>
> My very basic servlet fails to initialize when trying to read its JNDI
> environment entry. The app context name is xbasic. The context.xml is in
> xbasic.war's META-INF directory and TomCat (6.0.33) correctly copies it
> to ${tomcat.home}/conf/Catalina/localhost/xbasic.xml on first deploy.
> Below are the relevant snippets. Can anyone see what I'm doing wrong or
> is this a bug?
>
> BTW, I'm running this under openjdk 6.
>
>
> === EXCEPTION ================================================
> javax.servlet.ServletException: Error instantiating servlet class org.cliftonfarm.xbasic.Controller
>    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
>    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:291)
>    org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
>    org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:602)
>    org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
>    java.lang.Thread.run(Thread.java:636)
>
> root cause
>
> javax.naming.NameNotFoundException: Name configName is not bound in this Context
>    org.apache.naming.NamingContext.lookup(NamingContext.java:770)
>    org.apache.naming.NamingContext.lookup(NamingContext.java:140)
>    org.apache.naming.NamingContext.lookup(NamingContext.java:781)
>    org.apache.naming.NamingContext.lookup(NamingContext.java:140)
>    org.apache.naming.NamingContext.lookup(NamingContext.java:781)
>    org.apache.naming.NamingContext.lookup(NamingContext.java:153)
>    org.apache.naming.SelectorContext.lookup(SelectorContext.java:152)
>    javax.naming.InitialContext.lookup(InitialContext.java:409)
>    javax.naming.InitialContext.doLookup(InitialContext.java:282)
>    org.cliftonfarm.xbasic.Controller.<init>(Controller.java:28)
>    sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
> ...
>
> === context.xml ================================================
> <Context unpackWAR="false" privileged="false" antiResourceLocking="false" antiJARLocking="false">
>    <Environment
>        name="configName"
>        value="${catalina.base}/local/xbasic/config/master.properties"
>        description="Full path name of the config file."
>        type="java.lang.String"/>
>
> </Context>
>
> === web.xml ================================================
> <?xml version="1.0" encoding="UTF-8"?>
> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
>  <display-name>Archetype Created Web Application</display-name>
>  <servlet>
>    <servlet-name>Controller</servlet-name>
>    <servlet-class>org.cliftonfarm.xbasic.Controller</servlet-class>
>  </servlet>
>  <servlet-mapping>
>    <servlet-name>Controller</servlet-name>
>    <url-pattern>/*</url-pattern>
>  </servlet-mapping>
>  <env-entry>
>      <env-entry-name>configName</env-entry-name>
>      <env-entry-type>java.lang.String</env-entry-type>
>  </env-entry>
> </web-app>
>
> === Servlet constructor ========================================
> public class Controller extends HttpServlet {
>    private static final long serialVersionUID = 1L;
>    private String configName;
>
>    /**
>     * @throws NamingException
>     * @see HttpServlet#HttpServlet()
>     */
>    public Controller() throws NamingException {
>        super();
>        // get & store JNDI info
>        configName = InitialContext.doLookup("java:comp/env/configName"); // line 28
>        log(getClass().getName() +": Successfully initialized. configName=[" +configName
+"]");
>    }
> ...
>

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