spring使用注解的方式创建bean

package com.springbean;

public class Person {

    private  String name;
    private Integer age ;

    public Person(String name, Integer age) {
        this.name = name;
        this.age = age;
    }

    public void setName(String name) {
        this.name = name;
    }

    public void setAge(Integer age) {
        this.age = age;
    }

    public String getName() {
        return name;
    }

    public Integer getAge() {
        return age;
    }

    @Override
    public String toString() {
        return "Person{" +
                "name=‘" + name + ‘\‘‘ +
                ", age=" + age +
                ‘}‘;
    }
}

import com.spring.config.PersonConfig;
import com.springbean.Person;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;

public class ApplicationTest {
    public static void main(String[] args) {
        
        ApplicationContext applicationContext = new AnnotationConfigApplicationContext(PersonConfig.class);
        Person bean = applicationContext.getBean(Person.class);
        System.out.println(bean);

　　　　//获取bean的类型，默认是方法名，需要修改就在配置类中@Bean里面加上名字

　　　　String[] beanNamesForType = applicationContext.getBeanNamesForType(Person.class);
　　　　for (String beanType : beanNamesForType){
    　　　　System.out.println(beanType);
　　　　}

　　} 
}