school:
 teacher: 王老師
 student: 小明

@RestController
@RequestMapping("/test")
@Slf4j
@RequiredArgsConstructor
public class TestController {

    @Value("${school.teacher}")
    private String teacher;

    @Value("${school.student}")
    private String student;

    @GetMapping("/testValue")
    public Result testValue(){
        return Result.success(teacher + "--->" + student);
    }
}

school:
 teacher: 王老師
 studentList:
   - 小明
   - 小剛

import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;
import java.util.List;
/**
 * @author wangzhenjun
 * @date 2022/8/17 9:04
 */
// 要交給spring容器，不然獲取不到值
@Component
// 配置讀取yml文件中前綴以 school開頭的配置可以全部讀取
@ConfigurationProperties(prefix = "school")
// 要有g(shù)et方法，不然無(wú)法獲取值
@Data
public class School {

    // 名稱要與yml一致
    private String teacher;

    private List<String> studentList;
}

@RestController
@RequestMapping("/test")
@Slf4j
@RequiredArgsConstructor
public class TestController {

    @Autowired
    private School school;

    @GetMapping("/testProperties")
    public void testProperties(){
        log.info("讀取yml的school對(duì)象：{}",school);
    }
}

public void setPort(Integer port) {
    this.port = port;
}

@ConfigurationProperties(prefix = "server", ignoreUnknownFields = true)
public class ServerProperties {
    /**
     * Server HTTP port.
     */
    private Integer port;
}

school:
 teacher: 王老師
 studentList:
   - 小明
   - 小剛

@RestController
@RequiredArgsConstructor
@RequestMapping("/zone")
public class ZoneController {
    @Autowired
    private School school;

    @GetMapping("/test")
    public R test() {
        return R.ok(school);
    }