如何为依赖管理和传递依赖之间的“冲突”获取Maven依赖收敛报告？

Question

我寻找一种方法来获得一种依赖关系收敛报告，该报告列出了在dependency-management中定义但由具有不同版本的传递依赖项引用的依赖项。

我知道maven-project-info-reports-plugin:dependency-convergence，但是这个列表只列出了dependency中定义的依赖项(和传递依赖项)之间的冲突，但是一旦我在dependency-management中定义了该依赖项，它就不会在报告中列出。

我只想有一个报告，我不想失败的建设，如果这样的“冲突”发生。

背景：

我有一个Maven-多模块项目：

• 以前我没有使用depencency-managent，但是我使用属性来定义父pom中的依赖版本，并在每个模块的dependency部分中用该属性声明依赖项。
• 但是我想，让我们遵循Maven最佳实践，在父depencency-managent中声明依赖项和版本，并从子项目depencency中删除version标记。

(以前)我使用maven-project-info-reports-plugin:dependency-convergence报告来发现带有版本冲突的传递依赖项。为了决定我可以“忽视”这种冲突，或者我必须做些什么来解决它。(典型的I“忽略”but级别的冲突(版本号增量0.0.X)，但在主要或次要更改级别上花费更多时间处理冲突。

但是，在我将依赖项移到depencency-managent之后，maven-project-info-reports-plugin:dependency-convergence报告几乎是空的，没有发现任何问题。

Answer 1

Maven执行器插件有额外的强制执行规则如何？

让我们在我们管理的Selenium版本和PhantomJS使用的版本之间创建一个小冲突：

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>de.scrum-master.stackoverflow</groupId>
  <artifactId>dependency-convergence</artifactId>
  <version>1.0-SNAPSHOT</version>

  <build>
    <plugins>
      <!-- Enforce important build rules -->
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-enforcer-plugin</artifactId>
        <version>1.4.1</version>
        <executions>
          <execution>
            <id>enforcer-rules-error</id>
            <goals>
              <goal>enforce</goal>
            </goals>
            <configuration>
              <fail>false</fail>
              <skip>false</skip>
              <rules>
                <requireMavenVersion>
                  <version>3.2.5</version>
                </requireMavenVersion>
              </rules>
            </configuration>
          </execution>
          <execution>
            <id>enforcer-rules-warning</id>
            <goals>
              <goal>enforce</goal>
            </goals>
            <configuration>
              <fail>false</fail>
              <skip>false</skip>
              <rules>
                <dependencyConvergence/>
              </rules>
            </configuration>
          </execution>
        </executions>
        <dependencies>
          <dependency>
            <groupId>org.codehaus.mojo</groupId>
            <artifactId>extra-enforcer-rules</artifactId>
            <version>1.0-beta-6</version>
          </dependency>
        </dependencies>
      </plugin>
    </plugins>
  </build>

  <dependencyManagement>
    <dependencies>
      <dependency>
        <groupId>com.codeborne</groupId>
        <artifactId>phantomjsdriver</artifactId>
        <version>1.3.0</version>
        <scope>test</scope>
      </dependency>
      <dependency>
        <groupId>org.seleniumhq.selenium</groupId>
        <artifactId>selenium-java</artifactId>
        <version>3.0.1</version>
        <scope>test</scope>
      </dependency>
    </dependencies>
  </dependencyManagement>

  <dependencies>
    <dependency>
      <groupId>com.codeborne</groupId>
      <artifactId>phantomjsdriver</artifactId>
      <scope>test</scope>
    </dependency>
  </dependencies>

</project>

报告看起来如下(你必须学会阅读它)：

[WARNING] 
Dependency convergence error for commons-codec:commons-codec:1.9 paths to dependency are:
+-de.scrum-master.stackoverflow:dependency-convergence:1.0-SNAPSHOT
  +-com.codeborne:phantomjsdriver:1.3.0
    +-org.seleniumhq.selenium:selenium-remote-driver:2.53.0
      +-org.apache.httpcomponents:httpclient:4.5.1
        +-commons-codec:commons-codec:1.9
and
+-de.scrum-master.stackoverflow:dependency-convergence:1.0-SNAPSHOT
  +-com.codeborne:phantomjsdriver:1.3.0
    +-org.seleniumhq.selenium:selenium-java:3.0.1
      +-net.sourceforge.htmlunit:htmlunit:2.23
        +-commons-codec:commons-codec:1.10

[WARNING] 
Dependency convergence error for org.apache.httpcomponents:httpclient:4.5.1 paths to dependency are:
+-de.scrum-master.stackoverflow:dependency-convergence:1.0-SNAPSHOT
  +-com.codeborne:phantomjsdriver:1.3.0
    +-org.seleniumhq.selenium:selenium-remote-driver:2.53.0
      +-org.apache.httpcomponents:httpclient:4.5.1
and
+-de.scrum-master.stackoverflow:dependency-convergence:1.0-SNAPSHOT
  +-com.codeborne:phantomjsdriver:1.3.0
    +-org.seleniumhq.selenium:selenium-java:3.0.1
      +-net.sourceforge.htmlunit:htmlunit:2.23
        +-org.apache.httpcomponents:httpclient:4.5.2
and
+-de.scrum-master.stackoverflow:dependency-convergence:1.0-SNAPSHOT
  +-com.codeborne:phantomjsdriver:1.3.0
    +-org.seleniumhq.selenium:selenium-java:3.0.1
      +-net.sourceforge.htmlunit:htmlunit:2.23
        +-org.apache.httpcomponents:httpmime:4.5.2
          +-org.apache.httpcomponents:httpclient:4.5.2

[WARNING] 
Dependency convergence error for org.seleniumhq.selenium:selenium-remote-driver:2.53.0 paths to dependency are:
+-de.scrum-master.stackoverflow:dependency-convergence:1.0-SNAPSHOT
  +-com.codeborne:phantomjsdriver:1.3.0
    +-org.seleniumhq.selenium:selenium-remote-driver:2.53.0
and
+-de.scrum-master.stackoverflow:dependency-convergence:1.0-SNAPSHOT
  +-com.codeborne:phantomjsdriver:1.3.0
    +-org.seleniumhq.selenium:selenium-java:3.0.1
      +-org.seleniumhq.selenium:selenium-chrome-driver:3.0.1
        +-org.seleniumhq.selenium:selenium-remote-driver:3.0.1
and
+-de.scrum-master.stackoverflow:dependency-convergence:1.0-SNAPSHOT
  +-com.codeborne:phantomjsdriver:1.3.0
    +-org.seleniumhq.selenium:selenium-java:3.0.1
      +-org.seleniumhq.selenium:selenium-edge-driver:3.0.1
        +-org.seleniumhq.selenium:selenium-remote-driver:3.0.1
and
+-de.scrum-master.stackoverflow:dependency-convergence:1.0-SNAPSHOT
  +-com.codeborne:phantomjsdriver:1.3.0
    +-org.seleniumhq.selenium:selenium-java:3.0.1
      +-org.seleniumhq.selenium:selenium-firefox-driver:3.0.1
        +-org.seleniumhq.selenium:selenium-remote-driver:3.0.1
and
+-de.scrum-master.stackoverflow:dependency-convergence:1.0-SNAPSHOT
  +-com.codeborne:phantomjsdriver:1.3.0
    +-org.seleniumhq.selenium:selenium-java:3.0.1
      +-org.seleniumhq.selenium:selenium-ie-driver:3.0.1
        +-org.seleniumhq.selenium:selenium-remote-driver:3.0.1
and
+-de.scrum-master.stackoverflow:dependency-convergence:1.0-SNAPSHOT
  +-com.codeborne:phantomjsdriver:1.3.0
    +-org.seleniumhq.selenium:selenium-java:3.0.1
      +-org.seleniumhq.selenium:selenium-opera-driver:3.0.1
        +-org.seleniumhq.selenium:selenium-remote-driver:3.0.1
and
+-de.scrum-master.stackoverflow:dependency-convergence:1.0-SNAPSHOT
  +-com.codeborne:phantomjsdriver:1.3.0
    +-org.seleniumhq.selenium:selenium-java:3.0.1
      +-org.seleniumhq.selenium:selenium-safari-driver:3.0.1
        +-org.seleniumhq.selenium:selenium-remote-driver:3.0.1
and
+-de.scrum-master.stackoverflow:dependency-convergence:1.0-SNAPSHOT
  +-com.codeborne:phantomjsdriver:1.3.0
    +-org.seleniumhq.selenium:selenium-java:3.0.1
      +-org.seleniumhq.selenium:selenium-support:3.0.1
        +-org.seleniumhq.selenium:selenium-remote-driver:3.0.1

[WARNING] Rule 0: org.apache.maven.plugins.enforcer.DependencyConvergence failed with message:
Failed while enforcing releasability the error(s) are [
Dependency convergence error for commons-codec:commons-codec:1.9 paths to dependency are:
+-de.scrum-master.stackoverflow:dependency-convergence:1.0-SNAPSHOT
  +-com.codeborne:phantomjsdriver:1.3.0
    +-org.seleniumhq.selenium:selenium-remote-driver:2.53.0
      +-org.apache.httpcomponents:httpclient:4.5.1
        +-commons-codec:commons-codec:1.9
and
+-de.scrum-master.stackoverflow:dependency-convergence:1.0-SNAPSHOT
  +-com.codeborne:phantomjsdriver:1.3.0
    +-org.seleniumhq.selenium:selenium-java:3.0.1
      +-net.sourceforge.htmlunit:htmlunit:2.23
        +-commons-codec:commons-codec:1.10
, 
Dependency convergence error for org.apache.httpcomponents:httpclient:4.5.1 paths to dependency are:
+-de.scrum-master.stackoverflow:dependency-convergence:1.0-SNAPSHOT
  +-com.codeborne:phantomjsdriver:1.3.0
    +-org.seleniumhq.selenium:selenium-remote-driver:2.53.0
      +-org.apache.httpcomponents:httpclient:4.5.1
and
+-de.scrum-master.stackoverflow:dependency-convergence:1.0-SNAPSHOT
  +-com.codeborne:phantomjsdriver:1.3.0
    +-org.seleniumhq.selenium:selenium-java:3.0.1
      +-net.sourceforge.htmlunit:htmlunit:2.23
        +-org.apache.httpcomponents:httpclient:4.5.2
and
+-de.scrum-master.stackoverflow:dependency-convergence:1.0-SNAPSHOT
  +-com.codeborne:phantomjsdriver:1.3.0
    +-org.seleniumhq.selenium:selenium-java:3.0.1
      +-net.sourceforge.htmlunit:htmlunit:2.23
        +-org.apache.httpcomponents:httpmime:4.5.2
          +-org.apache.httpcomponents:httpclient:4.5.2
, 
Dependency convergence error for org.seleniumhq.selenium:selenium-remote-driver:2.53.0 paths to dependency are:
+-de.scrum-master.stackoverflow:dependency-convergence:1.0-SNAPSHOT
  +-com.codeborne:phantomjsdriver:1.3.0
    +-org.seleniumhq.selenium:selenium-remote-driver:2.53.0
and
+-de.scrum-master.stackoverflow:dependency-convergence:1.0-SNAPSHOT
  +-com.codeborne:phantomjsdriver:1.3.0
    +-org.seleniumhq.selenium:selenium-java:3.0.1
      +-org.seleniumhq.selenium:selenium-chrome-driver:3.0.1
        +-org.seleniumhq.selenium:selenium-remote-driver:3.0.1
and
+-de.scrum-master.stackoverflow:dependency-convergence:1.0-SNAPSHOT
  +-com.codeborne:phantomjsdriver:1.3.0
    +-org.seleniumhq.selenium:selenium-java:3.0.1
      +-org.seleniumhq.selenium:selenium-edge-driver:3.0.1
        +-org.seleniumhq.selenium:selenium-remote-driver:3.0.1
and
+-de.scrum-master.stackoverflow:dependency-convergence:1.0-SNAPSHOT
  +-com.codeborne:phantomjsdriver:1.3.0
    +-org.seleniumhq.selenium:selenium-java:3.0.1
      +-org.seleniumhq.selenium:selenium-firefox-driver:3.0.1
        +-org.seleniumhq.selenium:selenium-remote-driver:3.0.1
and
+-de.scrum-master.stackoverflow:dependency-convergence:1.0-SNAPSHOT
  +-com.codeborne:phantomjsdriver:1.3.0
    +-org.seleniumhq.selenium:selenium-java:3.0.1
      +-org.seleniumhq.selenium:selenium-ie-driver:3.0.1
        +-org.seleniumhq.selenium:selenium-remote-driver:3.0.1
and
+-de.scrum-master.stackoverflow:dependency-convergence:1.0-SNAPSHOT
  +-com.codeborne:phantomjsdriver:1.3.0
    +-org.seleniumhq.selenium:selenium-java:3.0.1
      +-org.seleniumhq.selenium:selenium-opera-driver:3.0.1
        +-org.seleniumhq.selenium:selenium-remote-driver:3.0.1
and
+-de.scrum-master.stackoverflow:dependency-convergence:1.0-SNAPSHOT
  +-com.codeborne:phantomjsdriver:1.3.0
    +-org.seleniumhq.selenium:selenium-java:3.0.1
      +-org.seleniumhq.selenium:selenium-safari-driver:3.0.1
        +-org.seleniumhq.selenium:selenium-remote-driver:3.0.1
and
+-de.scrum-master.stackoverflow:dependency-convergence:1.0-SNAPSHOT
  +-com.codeborne:phantomjsdriver:1.3.0
    +-org.seleniumhq.selenium:selenium-java:3.0.1
      +-org.seleniumhq.selenium:selenium-support:3.0.1
        +-org.seleniumhq.selenium:selenium-remote-driver:3.0.1
]

我希望这对你有帮助，也能为你服务。

注意:我发现了在某些情况下可能发生的奇怪的小故障。但不要让它太麻烦你，基本上它运行良好。