SpringBoot微服务如何使用java配置在应用程序上下文中设置属性

import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class AppConfig {
    @Value("${app.name}")
    private String appName;

    @Value("${app.version}")
    private String appVersion;

    @Bean
    public ApplicationInfo applicationInfo() {
        return new ApplicationInfo(appName, appVersion);
    }
}

app.name=MyApp
app.version=1.0.0

app:
  name: MyApp
  version: 1.0.0

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ApplicationContext;

@SpringBootApplication
public class MyApp {
    @Autowired
    private ApplicationInfo applicationInfo;

    public static void main(String[] args) {
        ApplicationContext context = SpringApplication.run(MyApp.class, args);
        MyApp app = context.getBean(MyApp.class);
        app.run();
    }

    public void run() {
        System.out.println("Application Name: " + applicationInfo.getAppName());
        System.out.println("Application Version: " + applicationInfo.getAppVersion());
    }
}