建立使用maven脂肪罐子 [英] Building a fat jar using maven

问题描述

我有我要分发的罐子code基地。它也有依赖于外部的罐子，这是我想在最后罐子捆绑。

I have a code base which I want to distribute as jar. It also have dependency on external jars, which I want to bundle in the final jar.

我听说，这是可以做到使用 Maven的组装插件，但我不知道怎么样。可能有人点我的一些例子。

I heard that this can be done using maven-assembly-plug-in, but I don't understand how. Could someone point me to some examples.

现在，我使用的脂肪罐捆绑最后的罐子。我想使用maven来实现同样的事情。

Right now, I'm using fat jar to bundle the final jar. I want to achieve the same thing using maven.

推荐答案

添加下面的插件，你的的pom.xml

Add following plugin to your pom.xml

      ... 
      <build>
      <plugins>
      <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-assembly-plugin</artifactId>
            <version>CHOOSE LATEST VERSION HERE</version>
            <configuration>
                <descriptorRefs>
                    <descriptorRef>jar-with-dependencies</descriptorRef>
                </descriptorRefs>

            </configuration>
            <executions>
                <execution>
                    <id>assemble-all</id>
                    <phase>package</phase>
                    <goals>
                        <goal>single</goal>
                    </goals>
                </execution>
            </executions>
        </plugin>
        </plugins>
        </build>

配置这个插件，运行后 MVN包将产生两个jar：一是只包含项目类，第二发罐后缀为所有依赖罐子，有依赖性。

After configuring this plug-in, running mvn package will produce two jars: one containing just the project classes, and a second fat jar with all dependencies with the suffix "-jar-with-dependencies".

如果你想正确的的classpath 设置在运行时你还需要增加以下插件

if you want correct classpath setup at runtime then also add following plugin

    <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-jar-plugin</artifactId>
        <configuration>
            <archive>
                <manifest>
                    <addClasspath>true</addClasspath>
                    <mainClass>fully.qualified.MainClass</mainClass>
                </manifest>
            </archive>
        </configuration>
    </plugin>

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