如何在Maven中从父项目中排除依赖项？ [英] How to exclude a dependency from parent's project in Maven?

问题描述

例如，我有2个Maven项目。一个是项目 - 父母。另一个是项目孩子。显然，项目 - 孩子是项目 - 父母的子项目。

For example, I have 2 Maven projects. One is "project-parent". The other is "project-child". Obviously, "project-child" is the sub project of "project-parent".

project-parent具有log4j的依赖关系。但我想将它从项目 - 孩子中排除。有办法吗？

"project-parent" has a dependency of log4j. But I want to exclude it from the "project-child". Is there a way?

您可能会说我应该将log4j从project-parent移动到project-child。这是完全正确的。 但假设我不能修改项目父母的POM。

You might say I should move log4j from "project-parent" to "project-child". That is totally correct. But the assumption is I CANNOT modify "project-parent"'s POM.

提前致谢。

推荐答案

我认为在Maven2中没有办法实现这一点，因为这是POM继承的
。但是我可以想到一个技巧：

I think in Maven2 there is no way to achieve this, because this is what POM inheritance is for . However there is one trick that I can think of:

假设您有权将工件上传到内部工件存储库。您可以创建一个空的JAR，将其部署为log4j：log4j，具有明显异常的版本（例如log4j：log4j：9999）。在project-child中添加这样的依赖项。然后它将覆盖parent的依赖关系取决于实际上为空的JAR。

Assume you have the right to upload artifact to your internal artifact repository. You may create an empty JAR, deploy it as log4j:log4j, with a obviously abnormal version (e.g. log4j:log4j:9999 ). Add such dependency in your project-child. Then it will override the dependency of parent to depends on a in-fact-empty JAR.

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