Set up an Eclipse Dynamic Web Project referencing another project

I've got a simple Dynamic Web project set up in Eclipse 3.6 Helios, but am having trouble getting it to make use of the code in another project that I've got.

I've added a reference to my other project to the build path of my web project, and I've got no problems in terms of compiling, only in terms of deploying and testing the result. The built web application doesn't have a jar in the WEB-INF/lib directory, so fair enough it can't find the code. The question is how I set this up. I've looked through the help that I can find and googled a bit but can't find anything obvious that helps out.

How do I set up my web 开发者_如何转开发project so that on deploying it it magically has the code from my dependent project inside it?

Thanks.

Note: Ideally I'd like a solution that doesn't involve setting up some kind of build tool. The web project deploys itself without recourse to any build tool (or at least none visible to end user), so was rather hoping that a references project could be integrated into that easily.

What goes in the deployment is determined not by the build path but by the Deployment Assembly entry in Preferences for the dynamic web project.

Use some build tool like ANT or Ivy or Maven that, on build, copies all the dependencies to WEB-INF/lib

Using a build tool is a good practice to automate build, test and deployment. You may also be interested in plug-ins like Maven Reactor.