spring 注解简单使用

一、通用注解

1、项目结构：

2、新建Person类，注解@Component未指明id，则后期使用spring获取实例对象时使用默认方式获取或使用类方式获取

package hjp.spring.annotation.commen;

import org.springframework.stereotype.Component;

//@Component
@Component("personId")
public class Person {
private String name;
private Integer age;
public String getName() {
    return name;
}
public void setName(String name) {
    this.name = name;
}
public Integer getAge() {
    return age;
}
public void setAge(Integer age) {
    this.age = age;
}
@Override
public String toString() {
    return "Person [name=" + name + ", age=" + age + "]";
}
}

Person