對於依賴注入使用註解方式，將不再需要在Spring配置檔案中宣告Bean例項，具體方式如下

修改spring-context.xml

<?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-3.0.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd">
    <bean id="springContext" class="com.zck.my.shop.commons.context.SpringContext" />
    <
 
bean id="userService" class="com.zck.my.shop.service.impl.UserServiceImpl" />

    <!--開啟註解模式-->
    <context:annotation-config />
    <context:component-scan base-package="com.zck.my.shop" />
</beans>

註解1：@componentt (該註解的value值為bean的id值）主要用於例項物件

Spring提供3個註解與component效果等效

@Repository：用於對DAO實現類註解

@Service：用於對Service實現類註解

@Controller：用於對Controller實現類進行註解

@Scope：（用於宣告作用域，預設是單例模式）