标签 #maven
场景 工作
时间 2023年2月14日17:58:09

一、问题描述

每次打包的时候，项目目录会多出一个莫名的文件dependency-reduced-pom.xml

image-20230214175954392

二、导致原因

maven打包插件maven-shade-plugin打包时自动生成，createDependencyReducedPom默认为true。

dependency-reduced-pom.xml 删除了已经在你的着色 jar 中的传递依赖项。这可以防止消费者两次拉他们，从而避免无用的重复。

三、解决方案

添加以下配置

<configuration>
      <createDependencyReducedPom>false</createDependencyReducedPom>
</configuration>

如：

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-shade-plugin</artifactId>
    <version>3.1.1</version>
    <configuration>
        <createDependencyReducedPom>false</createDependencyReducedPom>
    </configuration>
    <executions>
        <execution>
            <phase>package</phase>
            <goals>
                <goal>shade</goal>
            </goals>
            <configuration>
                <artifactSet>
                    <excludes>
                        <exclude>org.slf4j:*</exclude>
                        <exclude>log4j:*</exclude>
                        <exclude>ch.qos.logback:*</exclude>
                        <exclude>com.google.code.findbugs:jsr305</exclude>
                    </excludes>
                </artifactSet>
                <filters>
                    <filter>
                        <!-- Do not copy the signatures in the META-INF folder.
                        Otherwise, this might cause SecurityExceptions when using the JAR. -->
                        <artifact>*:*</artifact>
                        <excludes>
                            <exclude>META-INF/*.SF</exclude>
                            <exclude>META-INF/*.DSA</exclude>
                            <exclude>META-INF/*.RSA</exclude>
                        </excludes>
                    </filter>
                </filters>
                <transformers>
                    <transformer
                            implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                        <!-- Replace this with the main class of your job -->
                        <mainClass>my.programs.main.clazz</mainClass>
                    </transformer>
                    <transformer
                            implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/>
                </transformers>
            </configuration>
        </execution>
    </executions>
</plugin>