mvn在maven中安装的是什么 [英] What does mvn install in maven exactly do

问题描述

我刚刚开始使用Maven，我被告知要在特定目录中执行 mvn install 。

I just started using Maven and I was told to do mvn install in a specific directory.

mvn install 做什么，确切地说？

我认为它在当前文件夹中查找 pom.xml ，并按照该文件中指定的说明开始。这是正确的吗？

I think it looks for pom.xml in the current folder and starts following the instructions specified in that file. Is that correct?

推荐答案

正如您可能知道的那样，Maven是Apache提供的构建自动化工具，它不仅仅依赖于它管理。我们可以将它作为Ant和Makefile的对等体，它可以下载所需的所有依赖项。

As you might be aware of, Maven is a build automation tool provided by Apache which does more than dependency management. We can make it as a peer of Ant and Makefile which downloads all of the dependencies required.

在 mvn install ，它在超级 pom.xml pom.xml 构建依赖关系树c>（根POM）并在用户文件夹下的名为 .m2 的目录中下载/编译所有需要的组件。必须解决这些依赖项才能构建项目而不会出现任何错误， mvn install 是一个可以下载大多数依赖项的实用程序。

On a mvn install, it frames a dependency tree based on the project configuration pom.xml on all the sub projects under the super pom.xml (the root POM) and downloads/compiles all the needed components in a directory called .m2 under the user's folder. These dependencies will have to be resolved for the project to be built without any errors, and mvn install is one utility that could download most of the dependencies.

此外，Maven中还有其他类似的工具，如依赖项：resolve ，可以在任何特定情况下单独使用。 mvn的构建生命周期如下：

Further, there are other utils within Maven like dependency:resolve which can be used separately in any specific cases. The build life cycle of the mvn is as below:

1. process-resources


2. compile


3. process-test-resources


4. test-compile


5. test


6. package


7. install


8. deploy

1. process-resources
2. compile
3. process-test-resources
4. test-compile
5. test
6. package
7. install
8. deploy

使用标志 -DskipTests = true 可以忽略此mvn的测试阶段。

The test phase of this mvn can be ignored by using a flag -DskipTests=true.

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