Spring在注解的使用（实体类扫描）

package com.msb.pojo;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Controller;
import org.springframework.stereotype.Repository;
import org.springframework.stereotype.Service;

import java.io.Serializable;
@NoArgsConstructor
@AllArgsConstructor
@Data
/*
一共有4个注解，
@Component放在类上,用于标记,告诉spring当前类需要由容器实例化bean并放入容器中，下面三个是他的子注解
@Controller放在controller中
@Service放在service中
@Repository用于实例化持久层bean
*/
@Controller
public class User implements Serializable {
    private String user;
    private String password;
    private String name;
}

spring.xml注解引入配置

<?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"
       xmlns:p="http://www.springframework.org/schema/p"
       xmlns:c="http://www.springframework.org/schema/c"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context.xsd
">
    <!--use-default-filters="true"
    默认扫描器识别并包含 @Component @Controller @Service @Repository 四个注解
    -->
    <!--注解使用-->
    <context:component-scan base-package="com.msb.pojo"
                            use-default-filters="false">
        <!--控制只扫描Controller注解-->
    <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
        <!--控制只扫描Controller注解-->
    <context:exclude-filter expression="org.springframework.stereotype.Controller" type="annotation"/>
    </context:component-scan>
    <!--引入外部文件-->
    <context:property-placeholder location="classpath:jdbc.properties" />
    <bean id="DruidDataSource" class="com.alibaba.druid.pool.DruidDataSource">
        <property name="username" value="jdbc_username"></property>
        <property name="password" value="jdbc_password"></property>
        <property name="driverClassName" value="jdbc_driverClass"></property>
        <property name="url" value="jdbc_url"></property>
    </bean>
    <bean id="dept" class="com.msb.pojo.Dept">
        <property name="name" value="我是dept的"></property>
    </bean>
    <bean id="emp" class="com.msb.pojo.Emp" autowire="byName"></bean>
    <bean id="user" class="com.msb.pojo.User">
        <property name="password" value="1111"></property>
        <property name="name" value="2222"></property>
        <property name="user" value="1111"></property>
    </bean>
</beans>