最好的方法取决于你想做什么:

If you want to bundle your dependencies into a WAR or EAR file, then simply set the packaging type of your project to EAR or WAR. Maven will bundle the dependencies into the right location. If you want to create a JAR file that includes your code along with all your dependencies, then use the assembly plugin with the jar-with-dependencies descriptor. Maven will generate a complete JAR file with all your classes plus the classes from any dependencies. If you want to simply pull your dependencies into the target directory interactively, then use the dependency plugin to copy your files in. If you want to pull in the dependencies for some other type of processing, then you will probably need to generate your own plugin. There are APIs to get the list of dependencies, and their location on disk. You will have to take it from there...

如果您在Eclipse中的Tomcat服务器上运行时遇到与WEB-INF/lib文件中未出现依赖项相关的问题，请查看以下内容:

启动Tomcat时的DispatcherServlet (Maven依赖没有复制到wtpwebapps)

您只需在项目属性>部署程序集中添加Maven依赖项。

你可以使用Shade插件创建一个超级罐子，你可以在里面捆绑你所有的第三方依赖。

试试这样做:

<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>2.4</version>
<configuration>
    <archive>
        <manifest>  
            <addClasspath>true</addClasspath>
            <classpathPrefix>lib/</classpathPrefix>
            <mainClass>MainClass</mainClass>
        </manifest>
    </archive>
    </configuration>
</plugin>
<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-dependency-plugin</artifactId>
    <version>2.4</version>
    <executions>
        <execution>
            <id>copy</id>
            <phase>install</phase>
            <goals>
                <goal>copy-dependencies</goal>
            </goals>
            <configuration>
                <outputDirectory>
                    ${project.build.directory}/lib
                </outputDirectory>
            </configuration>
        </execution>
    </executions>
</plugin>

简单地把刚才说过的内容讲一遍。我想创建一个可执行JAR文件，其中包括我的依赖关系和我的代码。这招对我很管用:

(1)在pom中，在<build><plugins>下，我包括:

<plugin>
    <artifactId>maven-assembly-plugin</artifactId>
    <version>2.2-beta-5</version>
    <configuration>
        <archive>
            <manifest>
                <mainClass>dk.certifikat.oces2.some.package.MyMainClass</mainClass>
            </manifest>
        </archive>
        <descriptorRefs>
            <descriptorRef>jar-with-dependencies</descriptorRef>
        </descriptorRefs>
    </configuration>
</plugin>

(2)运行mvn compile assembly:assembly在项目的目标目录下生成所需的my-project-0.1-SNAPSHOT-jar-with-dependencies.jar。

(3)我用java -jar my-project-0.1-SNAPSHOT-jar-with-dependencies.jar运行JAR

这是一种用于嵌入严重依赖关系的重载解决方案，但Maven的Assembly Plugin对我来说是有用的。

@Rich Seller的回答应该是有效的，尽管对于更简单的情况，你应该只需要从使用指南中摘录以下内容:

<project>
    <build>
        <plugins>
            <plugin>
                <artifactId>maven-assembly-plugin</artifactId>
                <version>2.2.2</version>
                <configuration>
                    <descriptorRefs>
                        <descriptorRef>jar-with-dependencies</descriptorRef>
                    </descriptorRefs>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>