springboot mvn 打包，jar和资源文件分离打包

默认打包方式如下：

    <build>
        <finalName>${project.artifactId}</finalName>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

新打包方式

1、添加资源引用

包含如下保和文件格式

        <resources>
            <resource>
                <directory>src/main/java</directory>
                <filtering>true</filtering>
            </resource>
            <resource>
                <directory>src/main/resources</directory>
                <includes>
                    <include>**.*</include>
                    <include>**/*.properties</include>
                    <include>**/*.xml</include>
                    <include>**/*.*</include>
                </includes>
                <filtering>true</filtering>
            </resource>
        </resources>

2、jar打包插件

一定需要添加启动类<mainClass>com.xxx.xxx.xxx</mainClass>自己修改

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-jar-plugin</artifactId>
                <version>3.1.0</version>
                <configuration>
                    <!-- 包含文件配置，现在只打包 com 文件夹 -->
                    <includes>
                        <include>
                            **/com/**
                        </include>
                    </includes>

                    <archive>
                        <manifest>
                            <!-- 配置加入依赖包 -->
                            <addClasspath>true</addClasspath>
                            <classpathPrefix>lib/</classpathPrefix>
                            <useUniqueVersions>false</useUniqueVersions>
                            <!-- Spring Boot 启动类(自行修改) -->
                            <mainClass>com.xxx.xxx.xxx</mainClass>
                        </manifest>
                        <manifestEntries>
                            <!-- 外部资源路径加入 manifest.mf 的 Class-Path -->
                            <Class-Path>resources/</Class-Path>
                        </manifestEntries>
                    </archive>
                    <!-- jar 输出目录 -->
                    <outputDirectory>${project.build.directory}/build/</outputDirectory>
                </configuration>
            </plugin>

3、依赖库打包

把依赖文件打包到lib目录

<plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-dependency-plugin</artifactId>
                <!-- 复制依赖 -->
                <executions>
                    <execution>
                        <id>copy-dependencies</id>
                        <phase>package</phase>
                        <goals>
                            <goal>copy-dependencies</goal>
                        </goals>
                        <configuration>
                            <!-- 依赖包 输出目录 -->
                            <outputDirectory>${project.build.directory}/build/lib</outputDirectory>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

4、资源打包

导报到resources目录下面

<plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-resources-plugin</artifactId>
                <!-- 复制资源 -->
                <executions>
                    <execution>
                        <id>copy-resources</id>
                        <phase>package</phase>
                        <goals>
                            <goal>copy-resources</goal>
                        </goals>
                        <configuration>
                            <resources>
                                <resource>
                                    <directory>src/main/resources</directory>
                                </resource>
                            </resources>
                            <!-- 资源文件 输出目录 -->
                            <outputDirectory>${project.build.directory}/build/resources</outputDirectory>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

最终打包格式

<build>
        <!-- 为jar包取名 -->
        <finalName>${project.artifactId}</finalName>
        <resources>
            <resource>
                <directory>src/main/java</directory>
                <filtering>true</filtering>
            </resource>
            <resource>
                <directory>src/main/resources</directory>
                <includes>
                    <include>**.*</include>
                    <include>**/*.properties</include>
                    <include>**/*.xml</include>
                    <include>**/*.*</include>
                </includes>
                <filtering>true</filtering>
            </resource>
        </resources>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-jar-plugin</artifactId>
                <version>3.1.0</version>
                <configuration>
                    <!-- 包含文件配置，现在只打包 com 文件夹 -->
                    <includes>
                        <include>
                            **/com/**
                        </include>
                    </includes>

                    <archive>
                        <manifest>
                            <!-- 配置加入依赖包 -->
                            <addClasspath>true</addClasspath>
                            <classpathPrefix>lib/</classpathPrefix>
                            <useUniqueVersions>false</useUniqueVersions>
                            <!-- Spring Boot 启动类(自行修改) -->
                            <mainClass>com.xx.xxx.xxx</mainClass>
                        </manifest>
                        <manifestEntries>
                            <!-- 外部资源路径加入 manifest.mf 的 Class-Path -->
                            <Class-Path>resources/</Class-Path>
                        </manifestEntries>
                    </archive>
                    <!-- jar 输出目录 -->
                    <outputDirectory>${project.build.directory}/build/</outputDirectory>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-dependency-plugin</artifactId>
                <!-- 复制依赖 -->
                <executions>
                    <execution>
                        <id>copy-dependencies</id>
                        <phase>package</phase>
                        <goals>
                            <goal>copy-dependencies</goal>
                        </goals>
                        <configuration>
                            <!-- 依赖包 输出目录 -->
                            <outputDirectory>${project.build.directory}/build/lib</outputDirectory>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-resources-plugin</artifactId>
                <!-- 复制资源 -->
                <executions>
                    <execution>
                        <id>copy-resources</id>
                        <phase>package</phase>
                        <goals>
                            <goal>copy-resources</goal>
                        </goals>
                        <configuration>
                            <resources>
                                <resource>
                                    <directory>src/main/resources</directory>
                                </resource>
                            </resources>
                            <!-- 资源文件 输出目录 -->
                            <outputDirectory>${project.build.directory}/build/resources</outputDirectory>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
 </build>

然后再命令窗口进行打包操作

mvn clean package -Dmaven.test.skip=true

打包目录如下，在target下面，build 目录下面包含两个文件夹和一个jar包，lib存储依赖的包，resources包含着配置资源，具体如下展示

执行：

java -Dfile.encoding=utf-8 -jar xxxxx.jar