我正在使用基于组件的软件工程,使用Maven开发OSGI电子邮件客户端。我必须确保在OSGI容器内解析了我所有组件之间的依赖关系,因此我无法在生成的JAR内复制依赖关系,否则使用OSGI将毫无意义。但是我确实必须在JAR内部复制一个依赖项,即javax.mail
,因为我找不到任何与OSGI兼容的捆绑包,可以通过电子邮件发送邮件。
为此,我看过以下页面:https://maven.apache.org/plugins/maven-dependency-plugin/examples/copying-artifacts.html
所以我编辑了pom.xml
:
<project>
...
<build>
<plugins>
<plugin> <!-- to edit the MANIFEST.MF, required for OSGI -->
<groupId>org.apache.felix</groupId>
<artifactId>maven-bundle-plugin</artifactId>
<version>4.2.1</version>
<extensions>true</extensions>
<configuration>
<instructions>
<Class-Path>lib/</Class-Path>
... OSGI instructions ...
</instructions>
</configuration>
</plugin>
<plugin> <!-- to copy the dependencies -->
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>3.1.1</version>
<executions>
<execution>
<phase>install</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<artifactItems>
<artifactItem>
<groupId>com.sun.mail</groupId>
<artifactId>javax.mail</artifactId>
<version>1.6.2</version>
<outputDirectory>${project.build.directory}/lib</outputDirectory>
</artifactItem>
</artifactItems>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
...
</project>
但是<artifactItems>
标签似乎不起作用。当我mvn install
时,它将所有依赖项复制到dependency/
文件夹而不是lib/
文件夹中。如何仅将javax.mail
JAR复制到名为lib/
的文件夹中?
谢谢您的帮助。
答案 0 :(得分:1)
您混合了目标copy-dependencies
和copy
。将copy-dependencies
替换为copy
。
http://maven.apache.org/plugins/maven-dependency-plugin/copy-mojo.html
答案 1 :(得分:1)
maven-bundle-plugin允许嵌入依赖项: https://felix.apache.org/documentation/subprojects/apache-felix-maven-bundle-plugin-bnd.html
<Embed-Dependency>javax.mail|javax.mail-api</Embed-Dependency>