使用@required注解完成依赖检查：
即在对象属性的set方法上添加 @required后，若 <bean>配置中不为该属性赋值，运行会报错。
第一步：
package com.xuzhiwen.spring91; import org.springframework.beans.factory.annotation.Required; public class RequiredTest { private String name; private String hobby; @Required public void setName(String name) { this.name = name; } @Required public void setHobby(String hobby) { this.hobby = hobby; } @Override public String toString() { return "RequiredTest [name=" + name + ", hobby=" + hobby + "]"; } }第二步：
required.xml
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd"> <bean id="requiredTest" class="com.xuzhiwen.spring91.RequiredTest"> <property name="name" value="tom" /> <property name="hobby" value="tom" /> </bean> </beans>这样才能保证运行不出错。
注：看文档中需要配置扫描
<context:annotation-config /> 但是我试过，没陪好像也是可以的，不知道为何？转载于:https://www.cnblogs.com/beibidewomen/p/7411709.html
