如何配置Maven Assembly插件将单个XML文件作为项目构件？

Absolutely! You can use the Maven Assembly Plugin to output your single XML file directly as a project artifact—you just need to adjust your assembly descriptor file and plugin configuration to skip creating a compressed archive. Here's how to do it:

Step 1: Update Your Assembly Descriptor #

Modify your assembly/master.xml to target only your XML file and use a directory format (we'll tweak the plugin config later to output it as a single file):

<assembly xmlns="http://maven.apache.org/ASSEMBLY/2.1.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/ASSEMBLY/2.1.0 http://maven.apache.org/xsd/assembly-2.1.0.xsd">
    <id>xml-artifact</id>
    <!-- Use directory format instead of zip/tar -->
    <formats>
        <format>dir</format>
    </formats>
    <fileSets>
        <!-- Point to your XML file's location -->
        <fileSet>
            <directory>${project.basedir}/src/main/resources</directory> <!-- Replace with your XML's actual directory -->
            <includes>
                <include>your-target.xml</include> <!-- Replace with your XML filename -->
            </includes>
            <outputDirectory>/</outputDirectory> <!-- Output directly to the root of the assembly -->
        </fileSet>
    </fileSets>
</assembly>

Step 2: Adjust the Assembly Plugin Configuration #

Update your pom.xml plugin config to rename the output to a single XML file (matching your project's coordinate naming convention) and skip appending the assembly ID:

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-assembly-plugin</artifactId>
    <executions>
        <execution>
            <id>create-distribution</id>
            <phase>package</phase>
            <goals>
                <goal>single</goal>
            </goals>
            <configuration>
                <descriptors>
                    <descriptor>assembly/master.xml</descriptor>
                </descriptors>
                <!-- Name the output file to match your project's artifact naming -->
                <finalName>${project.artifactId}-${project.version}</finalName>
                <!-- Don't append the assembly ID to the filename -->
                <appendAssemblyId>false</appendAssemblyId>
                <!-- Output directly to the target directory -->
                <outputDirectory>${project.build.directory}</outputDirectory>
            </configuration>
        </execution>
    </executions>
</plugin>

When you run mvn package, you'll find your XML file (e.g., my-project-1.0.0.xml) in the target directory, ready to use as your project artifact.

A Simpler Alternative #

If your only goal is to output a single XML file as an artifact, you don't even need the Assembly Plugin. The maven-resources-plugin or a direct build configuration is more lightweight:

<build>
    <!-- Copy the XML file directly to the target directory -->
    <resources>
        <resource>
            <directory>src/main/resources</directory>
            <includes>
                <include>your-target.xml</include>
            </includes>
            <targetPath>${project.build.directory}</targetPath>
            <filtering>false</filtering>
        </resource>
    </resources>

    <!-- Optional: Install the XML file to your local Maven repository -->
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-install-plugin</artifactId>
            <executions>
                <execution>
                    <id>install-xml-artifact</id>
                    <phase>install</phase>
                    <goals>
                        <goal>install-file</goal>
                    </goals>
                    <configuration>
                        <file>${project.build.directory}/your-target.xml</file>
                        <groupId>${project.groupId}</groupId>
                        <artifactId>${project.artifactId}</artifactId>
                        <version>${project.version}</version>
                        <packaging>xml</packaging>
                    </configuration>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>

This setup copies your XML to target during the process-resources phase, and the install plugin adds it to your local repo as a proper XML artifact.

内容的提问来源于stack exchange，提问作者Raynigon