maven - maven范围编译和为JAR打包提供的区别

Question

当 Artifact 构建为 JAR 时，maven 范围 compile 和 provided 之间有什么区别？如果是 WAR，我会理解 - 该 Artifact 将包含或不包含在 WEB-INF/lib 中。但对于 JAR 来说这并不重要——不包含依赖项。当它们的范围是compile或provided时，它们必须位于类路径上。我知道 provided 依赖项不可传递 - 但这只是一个区别吗？

Answer 1

Compile means that you need the JAR for compiling and running the app. For a web application, as an example, the JAR will be placed in the WEB-INF/lib directory.

Provided means that you need the JAR for compiling, but at run time there is already a JAR provided by the environment so you don't need it packaged with your app. For a web app, this means that the JAR file will not be placed into the WEB-INF/lib directory.

For a web app, if the app server already provides the JAR (or its functionality), then use "provided" otherwise use "compile".

Here is the reference.