如何使用Maven的Java API访问Maven Artifact POM? [英] How can I access Maven Artifact POM using Maven's Java API?

问题描述

我正在尝试从项目的根目录开始检索整个依赖关系树及其pom.我从文件系统中已经存在的POM开始，但是我不确定如何从存储库中检索依赖项poms.

I am attempting to retrieve the entire dependency tree and their poms starting at the root of the project. I am starting with a POM already existing in my file system, but I'm not sure how to retrieve the dependency poms from the repository.

我正在使用以下代码访问依赖项列表.从列表中，我可以获得有关工件的所有信息.我只是不确定如何访问存储库.

I am using the following code to access the dependency list. From the list I have all the information on the artifacts. I'm just not sure how to access the repository.

FileReader reader = null;
Model model = null;
MavenXpp3Reader mavenreader = new MavenXpp3Reader();

File pomfile = new File("pom.xml");

model.setPomFile(pomfile);
MavenProject project = new MavenProject(model);

List<Dependency> deps = project.getDependencies();

// Get dependency details
for (Dependency d: deps) {          
    System.out.print(d.getArtifactId());
    System.out.print(":");
    System.out.println(d.getVersion()); 
}           

推荐答案

实际上，您已经接近阅读依赖项.所缺少的只是:

Actually you were pretty close to reading the dependencies. All that was missing was:

Model model = mavenreader.read(new FileReader(pomFile));

完整示例:

MavenXpp3Reader mavenreader = new MavenXpp3Reader();

File pomfile = new File("pom.xml");
Model model = mavenreader.read(new FileReader(pomFile));

List<Dependency> deps = model.getDependencies();

for (Dependency d: deps) {          
    System.out.print(d.getArtifactId());
} 

这不会为您提供依赖关系树，但是您可以为找到的依赖关系重复它.

This doesn't get you a dependency tree but you can repeat it for the dependencies you find.

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