<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>
applicationContext.xml
<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.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-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/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>
代码中
/* 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... } }