Spring Boot 將web項目打包成jar運行

1. 在src/main文件夾下創建webapp文件夾，將前端源碼放入webapp下（並將webapp文件夾exclude掉，避免idea無法加載項目）

2. pom添加以下代碼，使用maven管理前端項目

             <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>exec-maven-plugin</artifactId>
                <executions>
                    <execution>
                        <id>npm install</id>
                        <phase>prepare-package</phase>
                        <goals>
                            <goal>exec</goal>
                        </goals>
                        <configuration>
                            <executable>npm</executable>
                            <arguments>
                                <argument>install</argument>
                            </arguments>
                            <workingDirectory>${basedir}/src/main/webapp</workingDirectory>
                        </configuration>
                    </execution>

                    <execution>
                        <id>npm run build</id>
                        <phase>prepare-package</phase>
                        <goals>
                            <goal>exec</goal>
                        </goals>
                        <configuration>
                            <executable>npm</executable>
                            <arguments>
                                <argument>run</argument>
                                <argument>build</argument>
                            </arguments>
                            <workingDirectory>${basedir}/src/main/webapp</workingDirectory>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

3. 添加以下代碼將前端打包後文件複製到resources下的static文件夾（沒有請手動創建）

        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-resources-plugin</artifactId>
            <configuration>
                <encoding>${project.build.sourceEncoding}</encoding>
            </configuration>
            <executions>
                <execution>
                    <id>copy-spring-boot-webapp</id>
                    <!-- here the phase you need -->
                    <phase>validate</phase>
                    <goals>
                        <goal>copy-resources</goal>
                    </goals>
                    <configuration>
                        <encoding>utf-8</encoding>
                        <outputDirectory>${basedir}/src/main/resources/static</outputDirectory>
                        <resources>
                            <resource>
                                <directory>${basedir}/src/main/webapp/dist</directory>
                            </resource>
                        </resources>
                    </configuration>
                </execution>
            </executions>
        </plugin>

上面兩步操作均通過maven package命令完成，無需手動操作，執行完後即可以正常後端項目啓動，啓動後訪問ip:port根目錄可看到前端頁面表示web項目啓動成功，若失敗請檢查pom文件夾配置與webpack打包配置是否一致