以所需格式列出 maven 项目的依赖项答案

【问题标题】：List dependencies of maven project in desired format以所需格式列出 maven 项目的依赖项
【发布时间】：2019-04-20 18:49:46
【问题描述】：

我正在尝试在 maven 中生成依赖树，使用下面的命令

$ mvn dependency:tree -DoutputType=dot

输出如下所示

[INFO] Scanning for projects...
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building test 1.0
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] --- maven-dependency-plugin:2.8:tree (default-cli) @ test ---
[INFO] digraph "com.a:test:jar:1.0" { 
[INFO]  "com.a:test:jar:1.0" -> "org.apache.httpcomponents:httpclient:jar:4.5.5:compile" ; 
[INFO]  "com.a:test:jar:1.0" -> "com.google.code.gson:gson:jar:2.8.2:compile" ; 
[INFO]  "com.a:test:jar:1.0" -> "info.picocli:picocli:jar:2.3.0:compile" ; 
[INFO]  "com.a:test:jar:1.0" -> "log4j:log4j:jar:1.2.17:compile" ; 
[INFO]  "com.a:test:jar:1.0" -> "org.xerial:sqlite-jdbc:jar:3.21.0:compile" ; 
[INFO]  "org.apache.httpcomponents:httpclient:jar:4.5.5:compile" -> "org.apache.httpcomponents:httpcore:jar:4.4.9:compile" ; 
[INFO]  "org.apache.httpcomponents:httpclient:jar:4.5.5:compile" -> "commons-logging:commons-logging:jar:1.2:compile" ; 
[INFO]  "org.apache.httpcomponents:httpclient:jar:4.5.5:compile" -> "commons-codec:commons-codec:jar:1.10:compile" ; 
[INFO]  } 
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------

它既有直接依赖也有传递依赖，我期望的只是直接依赖，可以利用grep 或一些标志-Dexcludes 有助于实现以下输出

[INFO] Scanning for projects...
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building test 1.0
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] --- maven-dependency-plugin:2.8:tree (default-cli) @ test ---
[INFO] digraph "com.a:test:jar:1.0" { 
[INFO]  "com.a:test:jar:1.0" -> "org.apache.httpcomponents:httpclient:jar:4.5.5:compile" ; 
[INFO]  "com.a:test:jar:1.0" -> "com.google.code.gson:gson:jar:2.8.2:compile" ; 
[INFO]  "com.a:test:jar:1.0" -> "info.picocli:picocli:jar:2.3.0:compile" ; 
[INFO]  "com.a:test:jar:1.0" -> "log4j:log4j:jar:1.2.17:compile" ; 
[INFO]  "com.a:test:jar:1.0" -> "org.xerial:sqlite-jdbc:jar:3.21.0:compile" ;
[INFO]  } 
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------

我期待像节点生态系统中的 npm ls --depth=0 这样的东西，深度标志有助于获得直接依赖关系。

注意：我不能使用dependency:list，因为我需要上面的结构。

【问题讨论】：

标签： java maven dependencies maven-plugin

【解决方案1】：

maven-dependency-plugin:list 插件目标通过excludeTransitive 选项提供了这样的功能。但是由于您正在寻找 dot 图形输出格式，因此您无法使用它。

选项将以编程方式解析maven-dependency-plugin:tree 输出的输出并删除传递依赖项，即不以您的模块工件名称开头的行。

下面的一些基本的东西会起作用：

mvn org.apache.maven.plugins:maven-dependency-plugin:2.8:tree -DoutputType=dot -DoutputFile=out_temp & grep "com.a:test:jar:1.0" out_temp > out_final.gv & echo } >> out_final.gv & rm out_temp

【讨论】：