Java SE Project adding jar packages using relative paths __java

In Java Engineering, an external jar package was added to the Java build Path-->libraries-->add external jars, assuming that the jar package is placed in the project's Lib directory, assuming the project name is MyProject, That is, the jar package under D:\myproject\lib\*.jar, and then compile the project correctly, the entire project copied to another computer, import the project, often there will be engineering errors (engineering compilation is correct), prompted the message that project ' MyProject ' is Missing required library: ' D:\myproject\lib\aa.jar ', that is, according to the original project in the path of the jar did not find the Aa.jar package, how to solve the jar package absolute path problem.

Workaround:

1th: Directly copy the jar package into the project and then right key to the jar bundle, build path-----ADD Build Path

2nd: Copy jar package to real Java Engineering directory; Add the jar package you just copied in Java build path-->libraries-->add Jars