0 Replies Latest reply on Nov 12, 2007 4:49 PM by Dmitry Mikhailov

    @Resource dependency injection for Servlets - is implemented

    Dmitry Mikhailov Newbie

      Hi!

      I'm having troubles trying to make @Resource dependency injection work for servlets. Here it is:

      Servlet class, UserServlet.java:
      =====================
      /** data source to use */
      @Resource(name="jdbc/TimeTrackerDS")
      private DataSource myDs;
      =====================

      web.xml:
      ======
      <?xml version="1.0" encoding="UTF-8"?>
      <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">

      This servlet handler all non-admin UI
      <servlet-name>UserServlet</servlet-name>
      <servlet-class>
      com.vatamani.timetracker.webui.UserServlet
      </servlet-class>
      <init-param>
      <param-name>debug</param-name>
      <param-value>true</param-value>
      </init-param>


      <servlet-mapping>
      <servlet-name>UserServlet</servlet-name>
      <url-pattern>/user/*</url-pattern>
      </servlet-mapping>
      <welcome-file-list>
      <welcome-file>index.jsp</welcome-file>
      </welcome-file-list>
      <jsp-config>
      <jsp-property-group>
      All JSP pages
      <url-pattern>/p/*</url-pattern>
      <include-prelude>/p/header.jspf</include-prelude>
      <include-coda>/p/footer.jspf</include-coda>
      </jsp-property-group>
      </jsp-config>
      <context-param>
      <param-name>
      javax.servlet.jsp.jstl.fmt.localizationContext
      </param-name>
      <param-value>
      com.vatamani.timetracker.webui.messages
      </param-value>
      </context-param>
      </web-app>
      ======

      jboss-web.xml:
      ==========
      <?xml version="1.0" encoding="UTF-8"?>

      <!DOCTYPE jboss-web PUBLIC
      "-//JBoss//DTD Web Application 4.2//EN"
      "http://www.jboss.org/j2ee/dtd/jboss-web_4_2.dtd">
      <jboss-web>
      <resource-ref>
      <res-ref-name>jdbc/TimeTrackerDS</res-ref-name>
      <jndi-name>TimeTrackerDS</jndi-name>
      </resource-ref>
      </jboss-web>
      ==========

      And during deployment, I got following exception, as if @Resource doesn't exist at all:
      =========
      org.jboss.deployment.DeploymentException: resource-ref jdbc/TimeTrackerDS found in jboss-web.xml but not in web.xml
      at org.jboss.metadata.WebMetaData.importJBossWebXml(WebMetaData.java:1030)
      at org.jboss.metadata.WebMetaData.importXml(WebMetaData.java:770)
      at org.jboss.web.AbstractWebContainer.parseMetaData(AbstractWebContainer.java:763)
      ... 87 more

      When I tried to find out some JBoss - specific examples or documentation on using @Resource in servlets, I couldn't find any mention of it whatsoever. Is it implemented in 4.2.1 at all?

      Any suggestions are welcome!

      ____________
      WBW&R, Mikha