拷贝依赖包 mvn dependency:copy-dependencies，默认会拷到项目的 target\dependency 目录，想要复制到自定义的目录比如target/libs目录下，需要在pom.xml文件中添加设置覆盖默认设置：

<build> <plugins> <plugin> <artifactId>maven-dependency-plugin</artifactId> <configuration> <outputDirectory>${project.build.directory}/lib</outputDirectory><excludeTransitive>false</excludeTransitive> <stripVersion>true</stripVersion> </configuration> </plugin> </plugins> 
</build> 

其中${project.build.directory}是maven变量，表示target目录。如果不写的话，将在根目录下创建lib目录。【excludeTransitive】表示是否不包含间接依赖的包；【stripVersion】表示复制的jar文件去掉版本信息。如果需要在其他过程，比如package中加入copy-dependencies，需要在该plugin标签中这样设置：

<executions> <execution> <id>copy-dependencies</id> <phase>package</phase> <goals> <goal>copy-dependencies</goal> </goals> <configuration> <outputDirectory>libs</outputDirectory> <excludeTransitive>false</excludeTransitive> <stripVersion>true</stripVersion> </configuration> </execution> 
</executions>