属性赋值-@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‘}