hot deploying simple application in jetty

Question

I am working with jetty hightide vesion 7 currently as a stand alone server. I have a simple web project with a couple of jsp\'s and backing classes that I am currently depl

Answer 1

If you want to use jetty maven plugin

   <plugin>
        <groupId>org.mortbay.jetty</groupId>
        <artifactId>maven-jetty-plugin</artifactId>
        <version>6.1.25</version>
        <configuration>
            <scanIntervalSeconds>10</scanIntervalSeconds>
            <requestLog implementation="org.mortbay.jetty.NCSARequestLog">
                <!--
                          This doesn't do anything for Jetty, but is a workaround for a
                          Maven bug that prevents the requestLog from being set.
                      -->
                <append>true</append>
            </requestLog>
            <webApp>${basedir}/out/war/Spring2_5_6_war.war</webApp>
        </configuration>
    </plugin>

Answer 2

You need to define a ContextDeployer with a non-zero scan interval:

<Call name="addLifeCycle">
  <Arg>
    <New class="org.mortbay.jetty.deployer.ContextDeployer">
      <Set name="contexts"><Ref id="Contexts"/></Set>
      <Set name="configurationDir"><SystemProperty name="jetty.home" default="."/>/contexts</Set>
      <Set name="scanInterval">1</Set>
    </New>
  </Arg>
</Call>

Regarding debugging, I guess that what you have in mind is to connect a remote debugger using JPDA. For this, you'll need to set the -agentlib:jdwp option¹:

-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=5005

The configure your IDE debugger to connect on the specified port.

_{¹ if the target VM is 5.0 or newer, -agentlib:jdwp is preferable over the -Xdebug and -Xrunjdwp options which are still supported though.}