写在前面

​ 最近遇到一个朋友遇到一个项目需要将maven的依赖包和配置文件分开打包然后用脚本执行程序。这样的好处在于可以随时修改配置文件内容及查看jar包。如果将所有打成一个jar包就会有个问题（例如：修改数据库连接位置）

1. 使用maven-dependency-plugin 插件将

<build>
        <plugins>
            <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>
                        <configuration>
<!--${project.build.directory} class的输出目录不做设置的话默认代表项目根目录的target目录-->                                    <outputDirectory>${project.build.directory}/lib</outputDirectory>
                            <excludeTransitive>false</excludeTransitive>
                            <stripVersion>false</stripVersion>
                            <includeScope>runtime</includeScope>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

2. 使用maven-jar-plugin插件移除配置文件将其不打包进jar包中，并可以打包后的jar包输出到指定路径

        <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-jar-plugin</artifactId>
                <configuration>
                  <!-- 指定打包的jar包输出路径-->
                    <outputDirectory>
                        ${project.build.directory}/lib
                    </outputDirectory>   
                    <!--不打入jar包的文件类型或者路径-->
                    <excludes>
                        <exclude>**/*.properties</exclude>
                        <exclude>**/*.xml</exclude>
                        <exclude>**/*.yml</exclude>
                        <exclude>static/**</exclude>
                        <exclude>templates/**</exclude>
                    </excludes>
                </configuration>
            </plugin>

3. 使用maven-resources-plugin插件将需要复制的文件复制到指定路径（例：将配置文件提取到指定路径）

<plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-resources-plugin</artifactId>
                <executions>
                    <execution>
                        <id>copy-resources</id>
                        <phase>package</phase>
                        <goals>
                            <goal>copy-resources</goal>
                        </goals>
                        <configuration>
                            <encoding>UTF-8</encoding>
                            <!--打成jar包后复制到的路径-->
                            <outputDirectory>
                                ${project.build.directory}/conf
                            </outputDirectory>  
                            <resources>
                                <resource>
                                    <!--项目中的路径-->
                                    <directory>src/main/resources/</directory>
                                </resource>
                            </resources>
                        </configuration>
                    </execution>
                    <!--可配置多个提取复制路径只需要 “<id>”名字不一样即可-->
                    <execution>
                        <id>copy-bulid</id>
                        <phase>package</phase>
                        <goals>
                            <goal>copy-resources</goal>
                        </goals>
                        <configuration>
                            <encoding>UTF-8</encoding>
                            <outputDirectory>
                                ${project.build.directory}/bin
                            </outputDirectory>   
                            <resources>
                                <resource>
                                    <directory>build/</directory>
                                </resource>
                            </resources>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

使用maven命令执行打包命令

mvn clean package