以编程方式检索Maven依赖关系图

问题描述

鉴于Maven工件（groupId：artifactId：version），我如何以编程方式查询其依赖项？ （我不需要实际检索任何工件，只需要检索相关性信息。）

Given a Maven artifact (groupId:artifactId:version), how can I programmatically query its dependencies? (I don't need actually retrieve any artifacts, just the dependency information.)

编辑添加我想在外面执行此操作一个Maven插件，我想建立一个依赖图。

Edit to add I'd like to do this outside of a Maven plug-in, and I'd like to build up a dependency graph.

推荐答案

如果你正在使用一个maven插件（即：扩展AbstractMojo），您可以执行以下操作：

If you're using a maven plugin (ie: extend AbstractMojo), you can do the following:

  /**
   * @parameter expression="${project}"
   */
  private org.apache.maven.project.MavenProject mavenProject;

  List<org.apache.maven.model.Dependency> depmgtdeps = mavenProject.getDependencyManagement().getDependencies();

这将为您提供它检测到的实际依赖项对象。 MavenProject类还有许多其他方法可用于读取各种与pom相关的内容。但是，我不认为这可以在插件之外使用，或者至少，我从未尝试过这样做。

That will give you the actual dependency objects that it detects. The MavenProject class has a bunch of other methods as well for reading various pom related things. However, I don't believe this works outside a plugin, or at least, I've never tried to do it.

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