Spring 3.x 全注解配置
web.xml
<listener><listener-class>org.springframework.web.util.Log4jConfigListener</listener-class></listener><listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener><listener><listener-class>org.springframework.web.context.request.RequestContextListener</listener-class></listener><context-param><param-name>log4jConfigLocation</param-name><param-value>/WEB-INF/log4j.properties</param-value></context-param><context-param><param-name>contextConfigLocation</param-name><param-value>/WEB-INF/applicationContext.xml</param-value></context-param>
<beans xmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"xmlns:tx="http://www.springframework.org/schema/tx"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.xsdhttp://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsdhttp://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsdhttp://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd"default-autowire="byName">。。。。<context:component-scan base-package="com.aaa.bbb.user"/><tx:annotation-driven transaction-manager="transactionManagerJDBC" order="1"/></beans>
/* JSR-250标准的注解 */@Repository // DAO 类级别@Service // service服务层 类级别@Component // 适用不是以上两种的类 类级别@Controlle // web层控制器 类级别@Resource // 注入的对象 类属性级别它有name参数，缺省时，Spring 将这个值解释为要注射的 bean 的名字。即遵循by-name的语法，将继承于字段名或者 setter 方法名：如果是字段名，它将简化或者等价于字段名；如果是 setter 方法名，它将等价于 bean 属性名@Scope("singleton") // 或prototype 类级别@PostConstruct@PreDestroy当一个方法带有这些注解之一时，将被在其生命周期与 Spring 生命周期接口的方法或者显式声明回调方法同一刻上调用。下面的例子里，缓存将预置于初始化与销毁阶段。public class CachingMovieLister { @PostConstruct public void populateMovieCache() { // populates the movie cache upon initialization... } @PreDestroy public void clearMovieCache() { // clears the movie cache upon destruction... }}