SpringBoot启动类读取配置文件里面的值

application.properties 里面的值

server.port=10000
common.name = zhangsan
common.age = 10

Java代码

public static void main(String[] args) throws InterruptedException {
    ConfigurableApplicationContext applicationContext = SpringApplication.run(NacosConfigApplication.class, args);
    while (true) {
        //当动态配置刷新时，会更新到 Enviroment中，因此这里每隔一秒中从Enviroment中获取配置
        String userName = applicationContext.getEnvironment().getProperty("common.name");
        String userAge = applicationContext.getEnvironment().getProperty("common.age");
        System.err.println("common name :" + userName + "; age: " + userAge);
        TimeUnit.SECONDS.sleep(3);
    }
}

执行结果

common name :zhangsan; age: 10