在 Maven 中“删除”生成的默认 jar

Question

有一些解决方案可以“禁用”maven-jar-plugin 生成的默认 jar。但是，由于我的最终工件可能依赖于这个 jar（我对 maven 比较陌生，所以不完全确定是否确实如此，但似乎如此）当我禁用它时，我的构建失败并出现以下错误：

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-shade-plugin:2.3:shade (build-cli) on project putwb: Failed to create shaded artifact, project main artifact does not exist. -> [Help 1]

否则，它会生成一个空 jar 以及我通过脚本构建的其他 jar。构建完成后，有人可以建议一种“删除”默认 jar 的方法吗？或者，有人可以指出我如何禁用它，但我的构建成功了吗？

我在下面发布了我的pom.xml 的相关部分：

    <build>
    <resources>
        <resource>
            <directory>src/main/resources</directory>
            <filtering>true</filtering>
        </resource>
    </resources>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-resources-plugin</artifactId>
            <version>3.0.1</version>
            <executions>
                <execution>
                    <id>readme-md</id>
                    <phase>process-resources</phase>
                    <goals>
                        <goal>copy-resources</goal>
                    </goals>
                    <configuration>
                        <outputDirectory>${project.basedir}</outputDirectory>
                        <resources>
                            <resource>
                                <directory>src/main/resources</directory>
                                <includes>
                                    <include>README.md</include>
                                </includes>
                                <filtering>true</filtering>
                            </resource>
                        </resources>
                    </configuration>
                </execution>
            </executions>
        </plugin>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-shade-plugin</artifactId>
            <version>2.3</version>
            <executions>
                <execution>
                    <!-- Build the CLI version -->
                    <phase>package</phase>
                    <id>build-cli</id>
                    <goals>
                        <goal>shade</goal>
                    </goals>
                    <configuration>
                        <filters>
                            <!-- Don't include the UI code -->
                            <filter>
                                <artifact>*:*</artifact>
                                <excludes>in/ac/iitk/cse/putwb/ui/**</excludes>
                            </filter>
                        </filters>
                        <finalName>putwb-cli-${project.version}</finalName>
                        <transformers>
                            <!-- Don't include images -->
                            <transformer implementation="org.apache.maven.plugins.shade.resource.DontIncludeResourceTransformer">
                                <resource>.png</resource>
                            </transformer>
                            <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                <mainClass>in.ac.iitk.cse.putwb.experiment.PUTExperiment</mainClass>
                            </transformer>
                        </transformers>
                    </configuration>
                </execution>
                <execution>
                    <!-- Build the UI version -->
                    <phase>package</phase>
                    <id>build-ui</id>
                    <goals>
                        <goal>shade</goal>
                    </goals>
                    <configuration>
                    <finalName>putwb-ui-${project.version}</finalName>
                        <transformers>
                            <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                <mainClass>in.ac.iitk.cse.putwb.ui.PUTWb</mainClass>
                            </transformer>
                        </transformers>
                    </configuration>
                </execution>
            </executions>
        </plugin>
        <!-- If I add this to the script, the build fails -->
        <!--
        <plugin>
            <artifactId>maven-jar-plugin</artifactId>
            <version>2.3.1</version>
            <executions>
                <execution>
                    <id>default-jar</id>
                    <phase>none</phase>
                </execution>
            </executions>
        </plugin>
        -->
    </plugins>
  </build>

Answer 1

您可以使用 ant-run 插件的删除任务。您可以在生命周期中晚于 package 阶段的任何阶段执行此插件。（因为它将在 package 阶段再次创建。检查哪个套件更适合您。）执行您选择作为此插件阶段的 maven 命令（如mvn verify 如果你选择验证阶段）

        <plugin>
          <groupId>org.apache.maven.plugins</groupId>
          <artifactId>maven-antrun-plugin</artifactId>
          <version>1.8</version>
          <executions>
              <execution>
                  <phase>package</phase>
                  <goals>
                      <goal>run</goal>
                  </goals>
                  <configuration>
                      <target>
                          <delete file="${project.build.directory}/YourJarName.jar"/>
                      </target>
                  </configuration>
              </execution>
          </executions>
    </plugin>

检查构建生命周期https://maven.apache.org/guides/introduction/introduction-to-the-lifecycle.html

感谢@markthegrea 指出正确的文件夹。