如何在多模块项目中配置Maven shade插件?

时间:2014-01-09 13:22:42

标签: java maven maven-shade-plugin

大家好!我一直试图使用Maven Shade Plugin来获取jar,但我仍然没有获得成功:(

这是我的项目结构:

MainModule
  -Module1
    -src
    -pom.xml
  -Module2
    -src
    -pom.xml
  -pom.xml

Module1(pom.xml):

<parent>
    <artifactId>MainModule</artifactId>
    <groupId>com.plugintest</groupId>
    <version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>Module1</artifactId>

Module2(pom.xml):

<parent>
    <artifactId>MainModule</artifactId>
    <groupId>com.plugintest</groupId>
    <version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>Module1</artifactId>

MainModule(pom.xml):

<groupId>com.plugintest</groupId>
<artifactId>MainModule</artifactId>
<packaging>pom</packaging>
<version>1.0-SNAPSHOT</version>
<modules>
    <module>Module1</module>
    <module>Module2</module>
</modules>
<build>
    <plugins>
        <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-shade-plugin</artifactId>
        <version>2.2</version>
        <executions>
            <execution>
            <phase>package</phase>
            <goals>
                <goal>shade</goal>
            </goals>
            </execution>
        </executions>
        </plugin>
    </plugins>
</build>

根据这段代码,我得到2个jar文件(Module1-version.jar和Module2-version.jar)。但这不是我想要的。我希望获得1个jar文件(MainModule-version.jar),其中包含另一个(Module1和Module2)。

请告诉我,为什么这个Shade插件不起作用?

1 个答案:

答案 0 :(得分:14)

MainModule不应该生成一个jar文件。它只能生成... pom文件。它包含所有子模块共享的配置。这就是针对每个模块调用shade插件的原因。

相反,创建第三个模块。我们称之为FinalModule。此模块是MainModule的孩子。将整个<build>节点从MainModule pom.xml移动到FinalModule pom.xml。

文件结构:

   MainModule
      -FinalModule
        -src
        -pom.xml
      -Module1
        -src
        -pom.xml
      -Module2
        -src
        -pom.xml
      -pom.xml

FinalModule pom.xml如下所示:

FinalModule(pom.xml)

<parent>
    <groupId>com.plugintest</groupId>
    <artifactId>MainModule</artifactId>
    <version>1.0-SNAPSHOT</version>
</parent>
<artifactId>FinalModule</artifactId>

<dependencies>
    <dependency>
        <groupId>com.plugintest</groupId>
        <artifactId>Module1</artifactId>
        <version>1.0-SNAPSHOT</version>
    </dependency>
    <dependency>
        <groupId>com.plugintest</groupId>
        <artifactId>Module2</artifactId>
        <version>1.0-SNAPSHOT</version>
    </dependency>
</dependencies>

<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-shade-plugin</artifactId>
            <version>2.2</version>
            <executions>
                <execution>
                    <phase>package</phase>
                    <goals>
                        <goal>shade</goal>
                    </goals>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>

最后,你应该得到这样的东西:

[INFO] 
[INFO] --- maven-jar-plugin:2.3.2:jar (default-jar) @ FinalModule ---
[INFO] Building jar: D:\workspaces\java\Parent\FinalModule\target\FinalModule-1.0-SNAPSHOT.jar
[INFO] 
[INFO] --- maven-shade-plugin:2.2:shade (default) @ FinalModule ---
[INFO] Including my:Module1:jar:1.0-SNAPSHOT in the shaded jar.
[INFO] Including my:Module2:jar:1.0-SNAPSHOT in the shaded jar.
[INFO] Replacing original artifact with shaded artifact.
[INFO] Replacing D:\workspaces\java\Parent\FinalModule\target\FinalModule-1.0-SNAPSHOT.jar with D:\workspaces\java\Parent\FinalModule\target\FinalModule-1.0-SNAPSHOT-shaded.jar
[INFO] Dependency-reduced POM written at: D:\workspaces\java\Parent\FinalModule\dependency-reduced-pom.xml
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO] 
[INFO] Parent ............................................ SUCCESS [0.016s]
[INFO] Module1 ........................................... SUCCESS [1.654s]
[INFO] Module2 ........................................... SUCCESS [0.343s]
[INFO] FinalModule ....................................... SUCCESS [0.953s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------