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Re: AS 7 demos
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created by <a href="http://community.jboss.org/people/kabir.khan%40jboss.com">Kabir Khan</a> in <i>JBoss AS7 Development</i> - <a href="http://community.jboss.org/message/569117#569117">View the full discussion</a>
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<div class="jive-rendered-content"><p>I am trying the following but am seeing 'no ds injected'. Should this work at this stage?</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;"><strong>package</strong> org.jboss.as.demos.warwithds.archive;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;"><strong>import</strong> java.io.IOException;</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;"><strong>import</strong> java.io.Writer;</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;"><strong>import</strong> java.sql.Connection;</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;"><strong>import</strong> java.sql.ResultSet;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;"><strong>import</strong> javax.annotation.Resource;</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;"><strong>import</strong> javax.naming.InitialContext;</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;"><strong>import</strong> javax.servlet.ServletException;</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;"><strong>import</strong> javax.servlet.annotation.WebServlet;</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;"><strong>import</strong> javax.servlet.http.HttpServlet;</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;"><strong>import</strong> javax.servlet.http.HttpServletRequest;</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;"><strong>import</strong> javax.servlet.http.HttpServletResponse;</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;"><strong>import</strong> javax.sql.DataSource;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;"><strong>import</strong> org.jboss.logging.Logger;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier; color: #526ad1;">/**</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier; color: #526ad1;"> *</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier; color: #526ad1;"> * <strong>@author</strong><span> <a href="</span><a class="jive-link-email-small" href="mailto:kabir.khan@jboss.com" target="_blank">kabir.khan@jboss.com</a><span>">Kabir Khan</a></span></p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier; color: #526ad1;"> * <strong>@version</strong> $Revision: 1.1 $</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier; color: #526ad1;"> */</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier; color: #5b00ff;">@WebServlet(name="SimpleServlet", urlPatterns={"/simple", "/other"})</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;"><strong>public</strong> <strong>class</strong> SimpleServlet <strong>extends</strong> HttpServlet {</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;">    <strong>private</strong> <strong>static</strong> <strong>final</strong> <strong>long</strong> <em>serialVersionUID</em> = -2579304186167063651L;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;">    Logger log = Logger.<em>getLogger</em>(SimpleServlet.<strong>class</strong>.getName());</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;">    @Resource(mappedName="java:/H2DS")</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;">    DataSource ds;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier; color: #777777;">    @Override</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;">    <strong>protected</strong> <strong>void</strong> doGet(HttpServletRequest req, HttpServletResponse resp)</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;">            <strong>throws</strong> ServletException, IOException {</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;">        <strong>if</strong> (ds == <strong>null</strong>) {</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;">            System.<em>out</em>.println("No ds injected");</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;">            <strong>try</strong> {</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;">                ds = (DataSource)<strong>new</strong> InitialContext().lookup("java:/H2DS");</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;">            } <strong>catch</strong> (Exception e) {</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;">                <strong>throw</strong> <strong>new</strong> ServletException("Could not find ds", e);</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;">            }</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;">        }</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;">        String result = "Failure";</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;">        <strong>try</strong> {</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;">            Connection conn = ds.getConnection();</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;">            ResultSet rs = conn.prepareStatement("select 1").executeQuery();</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;">            <strong>if</strong> (rs.next()) {</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;">                result = "Success";</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;">            }</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;">        } <strong>catch</strong> (Exception e) {</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;">            <strong>throw</strong> <strong>new</strong> ServletException(e);</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;">        }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;">        Writer writer = resp.getWriter();</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;">        writer.write("Simple Servlet datasource " + result);</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;">    }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier; color: #777777;">    @Override</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;">    <strong>protected</strong> <strong>void</strong> doPost(HttpServletRequest req, HttpServletResponse resp)</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;">            <strong>throws</strong> ServletException, IOException {</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;">        <strong>this</strong>.doGet(req, resp);</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;">    }</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Courier;">}</p><div> </div></div>
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