用spring3.2搭建一個aop

1 需要的jar包

2 整個項目圖

3 java代碼

?3.1?Advice.java

package aop.advice;public interface Advice {public void before(); }

3.2 AdviceImpl.java

package aop.advice;public class AdviceImpl implements Advice {public void before() {System.out.println("before");}}
3.3 ?Hello.java

package aop.dao;public interface Hello {public void sayHello(); }

3.4 ?HelloImpl.java
package aop.dao;public class HelloImpl implements Hello {public void sayHello() {System.out.println("hello");}}

3.5 Test.java

package aop.junit;import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext;import aop.dao.Hello; import aop.dao.HelloImpl;public class Test {public static void main(String[] args) {Hello helloImp = new HelloImpl();ApplicationContext con = new ClassPathXmlApplicationContext("classpath:spring/xml/spring.xml");Hello hello = con.getBean("hello", Hello.class);hello.sayHello();}}

4 web.xml

<?xml version="1.0" encoding="UTF-8"?> <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"><!-- 配置spring監聽開始 --><context-param><param-name>contextConfigLocation</param-name><param-value>classpath:spring/xml/spring.xml</param-value></context-param><listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener><!-- 配置spring監聽開結束--><display-name></display-name> <welcome-file-list><welcome-file>index.jsp</welcome-file></welcome-file-list> </web-app>
5 spring.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:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd"> <import resource="spring-dao.xml"/> </beans>
6 ?spring-dao.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:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd"> <bean id="hello" class="aop.dao.HelloImpl" /><bean id="advice" class="aop.advice.AdviceImpl" /><aop:config><aop:aspect id="ha" ref="advice"><aop:pointcut id="pc" expression="execution(* aop.dao.*.*(..))"/><aop:before pointcut-ref="pc" method="before"/> </aop:aspect></aop:config></beans>
7 運行結果

總結

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