SpringBoot多模块相互依赖，找不到依赖包

https://blog.csdn.net/guduyishuai/article/details/60968728
https://docs.spring.io/spring-boot/docs/1.5.9.RELEASE/reference/html/howto-build.html
84.4 Create an executable JAR with Maven

原因就是默认打包出来的可执行jar和war一样是不可依赖的。
需要加分类器创建一个可执行jar（包含各种依赖）
同时会创建一个只包含当前项目字节码的jar（用于依赖，不包含其他依赖）
<build>
        <finalName>xxx-api-xxxapp</finalName>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <mainClass>api.xxx.com.xxxAPIApplication</mainClass>
                    <classifier>exec</classifier>
                </configuration>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <artifactId>maven-resources-plugin</artifactId>
                <version>2.5</version>
            </plugin>
        </plugins>
    </build>