首先报这个错误,你得明白,是什么原因导致的?
答:未引入命名空间,和约束文件
解决方法:
<?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
http://www.springframework.org/schema/beans/spring-beans.xsd
**http://www.springframework.org/schema/context
http://****www.springframework.org/schema/context/spring-context.xsd**">
<!-- 组件扫描器,主要是spring使用,用来扫描带有指定注解的类,将这些加载成BeanDefinition -->
<context:component-scan base-package="com.cyb.spring.service" />
</beans>
标签中加上
<!--命名空间-->
xmlns:context="http://www.springframework.org/schema/context"
<!--别名和约束文件-->
xsi:schemaLocation="http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd"

约束文件的话,请看:http://www.springframework.org/schema/beans/spring-beans.xsd
<!--别名-->
http://www.springframework.org/schema/context
<!--公网地址-->
http://www.springframework.org/schema/context/spring-context.xsd

若不加上命名空间的话bean得这样写
<beans:bean id="" class=""></beans>