配置类上添加注解@PropertySource加载外部配置文件

@Configuration@PropertySource("classpath:/person.properties")@ComponentScan(value = "com.yyc", includeFilters ={@ComponentScan.Filter(type= FilterType.CUSTOM, classes={MyTypeFilter.class})}, useDefaultFilters = false)public class MainConfig {    // 可以自定义一个bean的id，否则方法名即为beanId    @Bean("person")    public Person person() {        return new Person();    }}

@Value("13")    private int age;    @Value("${name}")    private String name;

Person{age=13, name='zhangsan'}