看看这个答案:

I am creating an installer that runs as a Java JAR file and it needs to unpack WAR and JAR files into appropriate places in the installation directory. The dependency plugin can be used in the package phase with the copy goal and it will download any file in the Maven repository (including WAR files) and write them where ever you need them. I changed the output directory to ${project.build.directory}/classes and then end result is that the normal JAR task includes my files just fine. I can then extract them and write them into the installation directory.

<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<executions>
    <execution>
        <id>getWar</id>
        <phase>package</phase>
        <goals>
            <goal>copy</goal>
        </goals>
        <configuration>
            <artifactItems>
                <artifactItem>
                    <groupId>the.group.I.use</groupId>
                    <artifactId>MyServerServer</artifactId>
                    <version>${env.JAVA_SERVER_REL_VER}</version>
                    <type>war</type>
                    <destFileName>myWar.war</destFileName>
                </artifactItem>
            </artifactItems>
            <outputDirectory>${project.build.directory}/classes</outputDirectory>
        </configuration>
    </execution>
</executions>

这篇文章可能有点老了，但我最近也有同样的问题。John Stauffer提出的第一个解决方案很好，但我在今年春天工作时遇到了一些问题。我使用的spring依赖jar有一些属性文件和xml模式声明，它们共享相同的路径和名称。尽管这些jar来自相同的版本，但jar-with-dependencies maven-goal正在用最后找到的文件覆盖这些文件。

最后，由于spring jar找不到正确的属性文件，应用程序无法启动。在这种情况下，罗普提出的解决方案已经解决了我的问题。

也是从那时起，spring-boot项目现在就存在了。它有一种非常酷的方法来管理这个问题，即提供一个maven目标，该目标重载包目标并提供自己的类装入器。参见弹簧靴参考指南

我试图做一些类似的事情，但我不希望所有的罐子都包括在内。我想从给定的依赖项中包含一些特定的目录。另外，分类器标签已经被占用，所以我不能做:

<dependencies>
    <dependency>
        <groupId>your.group.id</groupId>
        <artifactId>your.artifact.id</artifactId>
        <version>1.0</version>
        <type>jar</type>
        <classifier>jar-with-dependencies</classifier>
    </dependency>
</dependencies>

我使用maven-dependency-plugin和unpack goal 并将我想要的内容解压缩到${project.build。目录}/类，否则将省略 因为它在classes目录中，maven最终将它放在jar中

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-dependency-plugin</artifactId>
    <executions>
        <execution>
            <id>unpack</id>
            <phase>prepare-package</phase>
            <goals>
                <goal>unpack</goal>
            </goals>
            <configuration>
                <artifactItems>
                    <artifactItem>
                        <groupId>my.group</groupId>
                        <artifactId>my.artifact</artifactId>
                        <classifier>occupied</classifier>
                        <version>1.0</version>
                        <type>jar</type>
                    </artifactItem>
                </artifactItems>
                <outputDirectory>${project.build.directory}/classes</outputDirectory>
                <includes>aaa/**, bbb/**, ccc/**</includes>
            </configuration>
        </execution>
    </executions>
</plugin>

我发现这是最明确的答案;这里的其他答案是缺少一些对我来说不明显的东西，例如MVN清洁包命令，以及单独添加插件作为依赖项。所有这些对于更习惯的专业用户来说可能是显而易见的。

https://howtodoinjava.com/maven/executable-jar-with-dependencies/

把Maven放在一边，您可以把JAR库放在Main JAR中，但是您需要使用自己的类加载器。

检查这个项目:One-JAR链接文本

我对月食Luna和m2eclipse的最终解决方案: 自定义类加载器(下载并添加到您的项目，只有5个类) : http://git.eclipse.org/c/jdt/eclipse.jdt.ui.git/plain/org.eclipse.jdt.ui/jar%20in%20jar%20loader/org/eclipse/jdt/internal/jarinjarloader/; 这个类加载器是单jar类加载器中最好的，而且非常快;

< project.mainClass > org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader < / project.mainClass > < project.realMainClass > my.Class < / project.realMainClass >

编辑JIJConstants“Rsrc-Class-Path”为“Class-Path” MVN清洁依赖:复制依赖包 是创建一个jar与依赖lib文件夹与一个瘦类加载器

<build>
    <resources>
        <resource>
            <directory>src/main/java</directory>
            <includes>
                <include>**/*.java</include>
                <include>**/*.properties</include>
            </includes>
        </resource>
        <resource>
            <directory>src/main/resources</directory>
            <filtering>true</filtering>
            <includes>
                <include>**/*</include>
            </includes>
            <targetPath>META-INF/</targetPath>
        </resource>
        <resource>
            <directory>${project.build.directory}/dependency/</directory>
            <includes>
                <include>*.jar</include>
            </includes>
            <targetPath>lib/</targetPath>
        </resource>
    </resources>
<pluginManagement>
        <plugins>

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-jar-plugin</artifactId>
                <configuration>
                    <archive>
                        <manifest>
                            <addClasspath>true</addClasspath>
                            <mainClass>${project.mainClass}</mainClass>
                            <classpathPrefix>lib/</classpathPrefix>
                        </manifest>

                        <manifestEntries>
                            <Rsrc-Main-Class>${project.realMainClass}  </Rsrc-Main-Class>
                            <Class-Path>./</Class-Path>
                        </manifestEntries>

                    </archive>
                </configuration>
            </plugin>
<plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-dependency-plugin</artifactId>
                <executions>
                    <execution>
                        <id>copy-dependencies</id>
                        <phase>package</phase>
                        <goals>
                            <goal>copy-dependencies</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </pluginManagement>
</build>