从树数据结构打印纯文本树（java） [英] Print plain text tree from tree data structure (java)

问题描述

我很喜欢

mvn dependency:tree

并希望打印一个外观相似的树作为普通的ascii文本作为我的java程序的输出。

and want to print a similar-looking tree as plain ascii text as output from my java program.

 com.totsp.gwt:maven-gwt-sample:war:1.0-SNAPSHOT
 +- com.google.gwt:gwt-servlet:jar:2.4.0:compile
 +- com.google.gwt:gwt-user:jar:2.4.0:provided
 |  +- javax.validation:validation-api:jar:1.0.0.GA:provided
 |  \- javax.validation:validation-api:jar:sources:1.0.0.GA:provided
 +- log4j:log4j:jar:1.2.14:compile
 \- junit:junit:jar:4.1:test

我希望能实现这一目标的库很容易使用，但我可以找不到。

I was hoping that the library that achieves this would be easily usable but I can't find it.

我看到的最接近的替代品是： http://code.google.com/p/j-text-utils/ 但它不如Maven那么好。

The closest substitute I see is this: http://code.google.com/p/j-text-utils/ but it's not as nice as Maven's.

我在哪里可以找到一个打印树结构的库作为与mvn依赖几乎完全相同的文本：树？

Where can I find a library that prints a tree structure as text almost identically to mvn dependency:tree?

推荐答案

我我不是创建/使用MOJO的专家，但如何下载并查看 maven-dependency-plugin ？

I'm not an expert of creating/using MOJOs, but how about downloading and taking a look on the maven-dependency-plugin?

将它作为依赖项添加到项目中是微不足道的（我想你是在管理它通过Maven），乍一看，你应该简单地打电话给 TreeMojo.execute（）直接或类似的东西。

It's trivial to add it to your project as a dependency (I guess you're managing it by Maven), and on first sight, you should simply call TreeMojo.execute() directly or something like that.

大致上它是这样的：

ArtifactFilter artifactFilter = createResolvingArtifactFilter();
rootNode = dependencyTreeBuilder.buildDependencyTree( project,
        localRepository, artifactFactory, artifactMetadataSource,
        artifactFilter, artifactCollector );
String dependencyTreeString = serializeDependencyTree( rootNode );
DependencyUtil.log( dependencyTreeString, getLog() );

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