使用 maven 构建一个胖罐子 [英] Building a fat jar using maven

问题描述

我有一个代码库，我想将其作为 jar 分发.它还依赖于外部 jar，我想将其捆绑在最终 jar 中.

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.

我听说这可以使用 maven-assembly-plug-in 来完成，但我不明白怎么做.有人可以给我指出一些例子.

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，我正在使用 fat jar 来打包最终的 jar.我想使用 maven 实现同样的目的.

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

注意:如果你是 spring-boot 应用，请阅读答案结尾

将以下插件添加到您的 pom.xml最新版本可以在在

Add following plugin to your pom.xml The latest version can be found at

...
<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>
...

配置好这个插件后，运行mvn package会产生两个jar:一个只包含项目类，第二个包含所有依赖的fat jar，后缀为-jar-with-dependencies"".

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".

如果你想在运行时正确设置 classpath 然后添加以下插件

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>

<小时>

对于 spring boot 应用程序只使用以下插件(选择合适的版本)

---

For spring boot application use just following plugin (choose appropriate version of it)

<plugin>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-maven-plugin</artifactId>
    <configuration>
        <fork>true</fork>
        <mainClass>${start-class}</mainClass>
    </configuration>
    <executions>
        <execution>
            <goals>
                <goal>repackage</goal>
            </goals>
        </execution>
    </executions>
</plugin>

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