Databases
StackOverflow2013
Postsdbo
POSpring 3.1 WebApplicationInitializer & Embedded Jetty 8 AnnotationConfiguration
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POSpring 3.1 WebApplicationInitializer & Embedded Jetty 8 AnnotationConfiguration
    primarykey
    data
    text
    <p>I'm trying to create a simple webapp without any XML configuration using Spring 3.1 and an embedded Jetty 8 server.</p> <p>However, I'm struggling to get Jetty to recognise my implementaton of the Spring <em>WebApplicationInitializer</em> interface.</p> <p>Project structure:</p> <pre><code>src +- main +- java | +- JettyServer.java | +- Initializer.java | +- webapp +- web.xml (objective is to remove this - see below). </code></pre> <p>The <em>Initializer</em> class above is a simple implementation of <em>WebApplicationInitializer</em>:</p> <pre><code>import javax.servlet.ServletContext; import javax.servlet.ServletException; import org.springframework.web.WebApplicationInitializer; public class Initializer implements WebApplicationInitializer { @Override public void onStartup(ServletContext servletContext) throws ServletException { System.out.println("onStartup"); } } </code></pre> <p>Likewise <em>JettyServer</em> is a simple implementation of an embedded Jetty server:</p> <pre><code>import org.eclipse.jetty.annotations.AnnotationConfiguration; import org.eclipse.jetty.server.Server; import org.eclipse.jetty.webapp.Configuration; import org.eclipse.jetty.webapp.WebAppContext; public class JettyServer { public static void main(String[] args) throws Exception { Server server = new Server(8080); WebAppContext webAppContext = new WebAppContext(); webAppContext.setResourceBase("src/main/webapp"); webAppContext.setContextPath("/"); webAppContext.setConfigurations(new Configuration[] { new AnnotationConfiguration() }); webAppContext.setParentLoaderPriority(true); server.setHandler(webAppContext); server.start(); server.join(); } } </code></pre> <p>My understanding is that on startup Jetty will use <em>AnnotationConfiguration</em> to scan for annotated implementations of <em>ServletContainerInitializer</em>; it should find <em>Initializer</em> and wire it in...</p> <p>However, when I start the Jetty server (from within Eclipse) I see the following on the command-line:</p> <pre><code>2012-11-04 16:59:04.552:INFO:oejs.Server:jetty-8.1.7.v20120910 2012-11-04 16:59:05.046:INFO:/:No Spring WebApplicationInitializer types detected on classpath 2012-11-04 16:59:05.046:INFO:oejsh.ContextHandler:started o.e.j.w.WebAppContext{/,file:/Users/duncan/Coding/spring-mvc-embedded-jetty-test/src/main/webapp/} 2012-11-04 16:59:05.117:INFO:oejs.AbstractConnector:Started SelectChannelConnector@0.0.0.0:8080 </code></pre> <p>The important bit is this:</p> <pre><code>No Spring WebApplicationInitializer types detected on classpath </code></pre> <p>Note that <em>src/main/java</em> is defined as a source folder in Eclipse, so should be on the classpath. Also note that the Dynamic Web Module Facet is set to 3.0. </p> <p>I'm sure there's a simple explanation, but I'm struggling to see the wood for the trees! I suspect the key is with the following line:</p> <pre><code>... webAppContext.setResourceBase("src/main/webapp"); ... </code></pre> <p>This makes sense with a 2.5 servlet using web.xml (see below), but what should it be when using <em>AnnotationConfiguration</em>?</p> <p>NB: Everything fires up correctly if I change the Configurations to the following:</p> <pre><code>... webAppContext.setConfigurations(new Configuration[] { new WebXmlConfiguration() }); ... </code></pre> <p>In this case it finds the <em>web.xml</em> under <em>src/main/webapp</em> and uses it to wire the servlet using <em>DispatcherServlet</em> and <em>AnnotationConfigWebApplicationContext</em> in the usual way (completely bypassing the <em>WebApplicationInitializer</em> implementation above).</p> <p>This feels very much like a classpath problem, but I'm struggling to understand quite how Jetty associates itself with implementations of <em>WebApplicationInitializer</em> - any suggestions would be most appreciated!</p> <p>For info, I'm using the following:</p> <p>Spring 3.1.1 Jetty 8.1.7 STS 3.1.0</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USDuncan
    plurals
    1. This table or related slice is empty.
    1. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POSpring 3.1 WebApplicationInitializer & Embedded Jetty 8 AnnotationConfiguration
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. POSpring 3.1 WebApplicationInitializer & Embedded Jetty 8 AnnotationConfiguration
      1. USDuncan
      1. VTBountyStart
    3. VO
      singulars
      1. POSpring 3.1 WebApplicationInitializer & Embedded Jetty 8 AnnotationConfiguration
      1. This table or related slice is empty.
      1. VTUpMod
    1. This table or related slice is empty.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload