maven打包项目，然后给其他项目引用

A项目（这个项目需要被打包，作为被引入的项目），不需要启动类，因为作为公共模块被B项目引入：

package com.yunya.mvndependontest.rest;import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;@RestController
@RequestMapping("/teacher")
public class TeacherRest {@RequestMapping("/say")public String say() {String word = "好好学习，天天向上！";System.out.println(word);return word;}}

Teaching Service类，包含math 和 chinese方法：package com.yunya.mvndependontest.service;import org.springframework.stereotype.Service;@Service
public class Teaching {public String math() {return "教数学啦";}public String chinese() {return "教中文啦";}}

B项目：引入打包后的A项目（gav格式引入），启动端口是：8082

MvnDependOnParentTestApplication 启动类文件：
注意务必要使用@ComponentScan注解将A项目的restcontroller路径也引入，否则访问A项目restful接口路径（/teacher/say）会提示找不到地址。
package com.yunya.mvndependonparenttest;import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ComponentScan;@SpringBootApplication
@ComponentScan("com.yunya")
public class MvnDependOnParentTestApplication {public static void main(String[] args) {SpringApplication.run(MvnDependOnParentTestApplication.class, args);}}

Student RestController类，该类中调用A项目的Teaching Service类的方法math：package com.yunya.mvndependonparenttest.rest;import com.yunya.mvndependontest.service.Teaching;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;@RestController
@RequestMapping("/student")
public class Student {@AutowiredTeaching teaching;@RequestMapping("/study")public String study() {String studyContent = "学生学到了一首诗：床前明月光，疑是地上霜。";System.out.println(studyContent);// 调用引入的A项目的teaching service类中的math方法String mathContent = teaching.math();System.out.println(mathContent);return studyContent;}
}