@ConfigurationProperties注解的理解和使用

/**
 * @desc: @ConfigurationProperties
 * @author: YanMingXin
 * @create: 2021/7/27-17:36
 **/
@ConfigurationProperties(prefix = "student")
@Component
public class ConfigurationPropertiesTest {
    private String name;
    private String age;
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getAge() {
        return age;
    }
    public void setAge(String age) {
        this.age = age;
    }
}
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/**
 * @desc: SpringUtil
 * @author: YanMingXin
 * @create: 2021/7/27-17:55
 **/
@Component
public class SpringUtil implements ApplicationContextAware {
    private static ApplicationContext applicationContext;
    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        if (SpringUtil.applicationContext == null) {
            SpringUtil.applicationContext = applicationContext;
        }
    }
    /**
     * 获取applicationContext
     *
     * @return
     */
    public static ApplicationContext getApplicationContext() {
        return applicationContext;
    }
    /**
     * 通过name获取 Bean
     *
     * @param name
     * @return
     */
    public static Object getBean(String name) {
        return getApplicationContext().getBean(name);
    }
    /**
     * 通过class获取Bean
     *
     * @param clazz
     * @param <T>
     * @return
     */
    public static <T> T getBean(Class<T> clazz) {
        return getApplicationContext().getBean(clazz);
    }
    /**
     * 通过name,以及Clazz返回指定的Bean
     *
     * @param name
     * @param clazz
     * @param <T>
     * @return
     */
    public static <T> T getBean(String name, Class<T> clazz) {
        return getApplicationContext().getBean(name, clazz);
    }
}
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student.name=zs
student.age=23
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@Test
void contextLoads() {
    ConfigurationPropertiesTest bean = (ConfigurationPropertiesTest) SpringUtil.getBean("configurationPropertiesTest");
    System.out.println(bean.getAge());
}
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