Maven模块+构建单个特定模块 [英] Maven Modules + Building a Single Specific Module

问题描述

我有一个多模块Maven项目，父项目 P 和三个子模块 A ， B ， C 。 B 和 C 都是war项目，都依赖于 A 。

I have a multi-module Maven project with a parent project P and three sub-modules A, B, and C. Both B and C are war projects and both depend on A.

我可以在 P 中键入 mvn compile 并拥有所有子模块都经过适当编译。当我想对特定模块进行操作时会出现问题。

I can type mvn compile in P and have all of the sub-modules properly compiled. The problem comes when I want to do operations for specific modules.

我希望能够打包项目的战争 B ，但是当我从 B 的目录运行package命令时，它会抱怨它无法找到 A的依赖项。

I'd like to be able to package a war for project B, but when I run the package command from B's directory, it complains that it can't find the dependencies for A.

我从这个问题中理解： Maven和依赖模块或许Maven并不是真的设计用于这种类型的依赖项解析，但这引出了如何打包 B 的问题？

I understand from this question: Maven and dependent modules that perhaps Maven isn't really designed for this type of dependency resolution, but that begs the question of how do I package B?

1. 我是否必须为整个项目层次结构运行 mvn package 当我真的只想 B ？

每次打包 B 时，是否必须将A的快照安装到本地存储库中？

Do I have to install snapshots of A into my local repository every time I want to package B?

当 A 时，第二种情况并不是很有趣仍在积极开发中。

This second scenario isn't much fun when A is still under active development.

这里有什么最佳做法？

推荐答案

这里有哪些最佳做法？

Any best practices here?

使用Maven 高级反应堆选项，更具体地说：

Use the Maven advanced reactor options, more specifically:

-pl, --projects
        Build specified reactor projects instead of all projects
-am, --also-make
        If project list is specified, also build projects required by the list

所以只需 cd 进入父P目录并运行：

So just cd into the parent P directory and run:

mvn install -pl B -am

这将构建B和B所需的模块。

And this will build B and the modules required by B.

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