maven打包项目，然后给其他项目引用

news2024/9/24 21:21:50

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 {

    @Autowired
    Teaching 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;
    }
}