AspectJ：注入方面以作为第三方库进行项目

Question

There are 2 projects:

• Test project A (contain a simple class with the main method with the output of the message " It's A project" );
• Project B contain aspects (*.aj) for processing the message output to the console (eq displaying the " It's aspect from B project " message before every message output to the console in project A ), + additional classes.

Projects A and B are based on the Spring Framework . Project B contains aspects that used the percflow model, which is currently not supported by Spring.

Can I compile aspects using the AspectJ compiler without using the project A (hence without compile-time / post-compile weaving) and then, on the basis of project B build a jar file that I can add to A project dependencies for further usage?

That is at a stage of assembly of the jar-file the project B knows nothing of the project A .

It will probably be necessary to use load-time weaving. How exactly should Spring be configured to automatically pick up aspects from the B project's jar file when it is added to project A ?

Thank you.

Answer 1

What you want is possible:

• How to use AspectJ LTW is desribed in the Spring manual .
• How to set up your Maven build for project B is described in the AspectJ Maven plugin manual .

Sorry for not answering in more detail, but your question is also quite theoretical, you neither show any code or build information nor do you share a link to a sample project on GitHub. Creating an MCVE would help the community to write better answers.