Spring Boot 分离资源文件打包

Spring Boot项目默认的会打包成单一的jar文件，但是有时候我们并不想让配置文件、依赖包都跟可执行文件打包到一起。这时候可以在pom.xml文件中进行配置，从而使资源文件、依赖包和可执行文件分离。pom.xml配置如下：

<build>
        <plugins>
            <!--**********分离资源文件及依赖包打包配置*************-->
            <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>
                            <outputDirectory>target/lib</outputDirectory>
                            <excludeTransitive>false</excludeTransitive>
                            <stripVersion>false</stripVersion>
                            <includeScope>runtime</includeScope>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-jar-plugin</artifactId>
                <configuration>
                    <excludes>
                        <exclude>**/*.properties</exclude>
                        <exclude>**/*.xml</exclude>
                        <exclude>static/**</exclude>
                        <exclude>templates/**</exclude>
                    </excludes>
                </configuration>
            </plugin>

            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <layout>ZIP</layout>
                    <includes>
                        <include>
                            <groupId>non-exists</groupId>
                            <artifactId>non-exists</artifactId>
                        </include>
                    </includes>
                </configuration>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                        <configuration>
                            <classifier>classes</classifier>
                            <attach>false</attach>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-antrun-plugin</artifactId>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>run</goal>
                        </goals>
                        <configuration>
                            <target>
                                <property name="dist">target/build</property>
                                <property name="res">target/build/resources</property>
                                <property name="dist-tmp">target/build/tmp</property>
                                <property name="app-name">${project.artifactId}-${project.version}</property>
                                <property name="real-app-name">${project.artifactId}</property>
                                <delete dir="${dist}" />
                                <mkdir dir="${dist}" />
                                <mkdir dir="${dist-tmp}" />
                                <mkdir dir="${res}" />
                                <copy file="target/${app-name}.jar" tofile="${dist-tmp}/${app-name}.jar" />
                                <unzip src="${dist-tmp}/${app-name}.jar" dest="${dist-tmp}" />
                                <delete file="${dist-tmp}/${app-name}.jar" />
                                <move file="target/${app-name}-classes.jar" tofile="${dist}/${real-app-name}.jar"/>
                                <move todir="${dist}/lib">
                                    <fileset dir="target/lib" />
                                </move>

                                <delete dir="${dist-tmp}" />

                                <copy todir="${res}">
                                    <fileset dir="target/classes">
                                        <include name="**/static/**" />
                                        <include name="**/templates/**" />
                                    </fileset>
                                </copy>
                                <copy todir="${res}">
                                    <fileset dir="target/classes">
                                        <include name="**/*.properties" />
                                        <include name="**/*.xml" />
                                        <include name="**/*.yml" />
                                    </fileset>
                                </copy>
                            </target>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

maven打包完成后，可以在​​target​​​目录下看到一个​​build​​目录，进入该目录的结构如图：

test.jar文件就是可执行文件，资源文件和配置文件都在resources目录下，依赖的jar包都在lib目录下。 
运行方式：java -jar -Dloader.path=.,resources,lib test.jar

注意：如果在windows10系统下运行，要用cmd，不要用PowerShell，否则可能会报Error: Unable to access jarfile .path=.,resources,lib异常。

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作者：浅醉樱花雨 
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