Question

我想从类构建一个maven jar工件。我没有源文件。这些类最初是在本地安装的另一个工件中。我使用maven-dependency-plugin来解压缩类并将它们放在这个项目/模块的目标文件夹中。

它创建了jar ..但不包括我刚刚解压缩的类。这是我的pom：

<build>
... 

<!-- unpack myjar1.jar and myjar2.jar -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-dependency-plugin</artifactId>
                <version>2.8</version>
                <executions>
                    <execution>
                        <id>unpack</id>
                        <phase>package</phase>
                        <goals>
                            <goal>unpack</goal>
                        </goals>
                        <configuration>
                            <artifactItems>
                                <artifactItem>
                                    <groupId>com.company</groupId>
                                    <artifactId>myjar1</artifactId>
                                    <version>1.0</version>
                                    <type>jar</type>
                                    <overWrite>false</overWrite>
                                    <outputDirectory>target/final</outputDirectory>
                                </artifactItem>
                                <artifactItem>
                                    <groupId>com.company</groupId>
                                    <artifactId>myjar2</artifactId>
                                    <version>1.0</version>
                                    <type>jar</type>
                                    <overWrite>false</overWrite>
                                    <outputDirectory>target/final</outputDirectory>
                                </artifactItem>
                            </artifactItems>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

<plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-jar-plugin</artifactId>
                <version>2.4</version>
                <executions>
                    <execution>
                        <id>default</id>
                        <phase>package</phase>
                        <goals>
                            <goal>jar</goal>
                        </goals>
                        <configuration>
                            <classesDirectory>/path/to/target/final/folder</classesDirectory>
                            <includes>
                                <include>**</include>
                            </includes>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

</plugins>

</build>

如何将这些类包含在final.jar中？

Answer 1

我认为最好的解决方案是maven-shade-plugin：创建一个pom.xml，将这两个库添加为依赖项并配置maven-shade-plugin。运行mvn package，您就拥有了合并的项目。

Answer 2

罗伯特上面写的内容也可能是一个可行的解决方案......但我想出了一个不同的出路。我只是删除了maven-jar-plugin中的<includes>并且它有效。我通过创建构建配置并选择“debug”选项来运行eclipse中的构建。它吐了很多关于“配置”的信息，否则不会显示。

谢谢！

<plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-jar-plugin</artifactId>
                <version>2.4</version>
                <executions>
                    <execution>
                        <id>default</id>
                        <phase>package</phase>
                        <goals>
                            <goal>jar</goal>
                        </goals>
                        <configuration>
                            <classesDirectory>path/to/final/folder</classesDirectory>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

这很有用！

Answer 3

另一种方法是将ouputDirectory设置为常规目标/类目录。目标/类

因此，解压缩的类加上你的项目类将在目标/类中可用，可以使用常规的maven-jar-plugin通过指定**

捆绑到.jar中。

完成pom：

    <build>
<plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-dependency-plugin</artifactId>
            <version>2.8</version>
            <executions>
                <execution>
                    <id>unpack</id>
                    <phase>package</phase>
                    <goals>
                        <goal>unpack</goal>
                    </goals>
                    <configuration>
                        <artifactItems>
                            <artifactItem>
                                <groupId>a.b.c</groupId>
                                <artifactId>aaa</artifactId>
                                <type>jar</type>
                                <overWrite>true</overWrite>
                                <outputDirectory>target/classes</outputDirectory>                                    
                            </artifactItem>
                        </artifactItems>
                    </configuration>
                </execution>
            </executions>
        </plugin>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-jar-plugin</artifactId>
            <version>2.4</version>
            <executions>
                <execution>
                    <id>default</id>
                    <phase>package</phase>
                    <goals>
                        <goal>jar</goal>
                    </goals>

                    <configuration>
            <includes>
                    <include>**</include>
            </includes>
            </configuration>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>

从没有java源的类构建maven jar

3 个答案: