Spring 通过一个 BeanPostProcessor 对 @Autowired 进行解析,所以要让 @Autowired 起作用必须事先在 Spring 容器中声明 AutowiredAnnotationBeanPostProcessor Bean。
或者使用隐式注册( 隐式注册 post-processors 包括了 AutowiredAnnotationBeanPostProcessor,CommonAnnotationBeanPostProcessor,PersistenceAnnotationBeanPostProcessor,RequiredAnnotationBeanPostProcessor。)
<?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/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd" default-lazy-init="true"> <!-- 该 BeanPostProcessor 将自动对标注 @Autowired 的 Bean 进行注入 --> <!-- <bean class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor" /> --> <!-- 使用隐式注册 --> <context:annotation-config/> </beans>
@Autowired private Scheduler scheduler;
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd" default-lazy-init="false"> <!-- 调度器 --> <bean name="scheduler" class="org.springframework.scheduling.quartz.SchedulerFactoryBean"> <!-- 通过applicationContextSchedulerContextKey属性配置spring上下文 --> <property name="applicationContextSchedulerContextKey"> <value>applicationContext</value> </property> </bean> </beans>