使用注解开发

1)bean:

//@Component等价于<context:component-scan base-package="com.kakafa.pojo"/>
@Component
public class User {
    private String name; 
}

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
        https://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context
        https://www.springframework.org/schema/context/spring-context.xsd">

    <!--指定要扫描的包，这个包下面的注解就会生效-->
    <context:component-scan base-package="com.kakafa.pojo"/>

    <context:annotation-config/>

</beans>

2)属性注入注解：

3)衍生注解

4）自动装配注解

上一篇博客：https://www.cnblogs.com/kakafa/p/15770792.html

5）作用域

6)小结