如何在Eclipse中添加Java项目而不是Jar

Question

I am working on two connected projects, my current solution looks like that:

My main project is web app (spring + vaadin), which use JAR build by ant in second project. Now I have to debug the second project (JAR) but I can't connect it :|

I tried add my second project as "Required project" but it did not do the magic. I tried add sources to JAR, but it did not do the magic.

Any suggestion how can I do that ?

Aaand -> my problem is on Tomcat, I want to debug both projects at the same time. And now I can not run it.

thx Lukasz

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log:

java.lang.NoClassDefFoundError: ln/wi/search/service/WIService
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2389)
at java.lang.Class.getDeclaredConstructors(Class.java:1836)

Answer 1

Right click on the web app project and select Build Path > Configure Build Path, then select the Projects tab and add the jar project as a dependency. Eclipse will set it up on the class path for you.

Otherwise, you could use maven and create a multi module project where the jar is automatically packaged and added to the WEB-INF/lib folder of the Web App project, but that could be an overkill :)

cheers

Answer 2

除了将其添加到构建路径之外，您还希望将第二个项目添加到该项目的Properties的Deployment Assembly页面中（假设您使用的是具有该功能的最新版本的Eclipse）。