Embedded Jetty looking for files inside its Jar file

Question

I successfully embedded Jetty on a test application. It can serve files without issues. Now I want to know if it's possible for Jetty to serve files that are inside its own Jar file.

Does anyone know if that's possible?

Solution 1

An example is listed on the Jetty embedding page at http://docs.codehaus.org/display/JETTY/Embedding+Jetty

The trick is to create a File URL to your classpath location.

String webDir = this.class.getClassLoader().getResource("com/company/project/mywebdir").toExternalForm();

ServletContextHandler context = new ServletContextHandler();
context.setContextPath("/");
context.setResourceBase(webDir);

Solution 2

It's pretty simple, if you throw Spring into the equation. And here it goes:

 ...

 WebAppContext webAppContext = new WebAppContext();
 webAppContext.setServer(server);
 webAppContext.setContextPath("/");
 webAppContext.setResourceBase(new ClassPathResource("webapp").getURI().toString());

 server.addHandler(webAppContext); 

 ....

That will make jetty find the necessary web resources inside the jar file.

Comments

[LaSombra]

I could, but I want a self-contained web application inside a Jar for simplicity purposes. :)

[LaSombra]

Thanks. I did it with Maven + Assembly plugin :)

[Uriah Carpenter]

@phtrivier The class where you instantiate org.mortbay.jetty.Server or org.eclipse.jetty.server.Server.

[fd8s0]

Actually jetty does this internally if you try to set a webapp folder, so he wasn't that far off.

[Wim Deblauwe]

What type is 'server' ?

[Erik Kaplun]

any idea what to do if request.getRequestDispatcher(...).forward(req, resp) is not finding .jsp files under WEB-INF when running from a JAR file?

[fionbio]

@WimDeblauwe org.eclipse.jetty.server.Server

[alok]

Down-voting because even though you're the OP, this solution really isn't a solution. And it would be an extremely rare situation where a guy stumbling upon the issue you faced would go with this solution.

[JRSofty]

The link above is out of date, and it seems with Jetty version 9.4.11.v20180605 the class ServletContextHandler does not exist.