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第一步要导入spring架构包：
一、XML方式
1. TestAspect：切面类
- package com.spring.aop;
- import org.aspectj.lang.JoinPoint;
- import org.aspectj.lang.ProceedingJoinPoint;
- public class TestAspect {
- public void doAfter(JoinPoint jp) {
- System.out.println("log Ending method: " + jp.getTarget().getClass().getName() + "." + jp.getSignature().getName());
- }
- public Object doAround(ProceedingJoinPoint pjp) throws Throwable {
- long time = System.currentTimeMillis();
- Object retVal = pjp.proceed();
- time = System.currentTimeMillis() - time;
- System.out.println("process time: " + time + " ms");
- return retVal;
- }
- public void doBefore(JoinPoint jp) {
- System.out.println("log Begining method: " + jp.getTarget().getClass().getName() + "." + jp.getSignature().getName());
- }
- public void doThrowing(JoinPoint jp, Throwable ex) {
- System.out.println("method " + jp.getTarget().getClass().getName() + "." + jp.getSignature().getName() + " throw exception");
- System.out.println(ex.getMessage());
- }
- }
2. AServiceImpl：目标对象
- package com.spring.service;
- // 使用jdk动态代理
- public class AServiceImpl implements AService {
- public void barA() {
- System.out.println("AServiceImpl.barA()");
- }
- public void fooA(String _msg) {
- System.out.println("AServiceImpl.fooA(msg:" + _msg + ")");
- }
- }
3. BServiceImpl：目标对象
- package com.spring.service;
- // 使用cglib
- public class BServiceImpl {
- public void barB(String _msg, int _type) {
- System.out.println("BServiceImpl.barB(msg:" + _msg + " type:" + _type + ")");
- if (_type == 1)
- throw new IllegalArgumentException("测试异常");
- }
- public void fooB() {
- System.out.println("BServiceImpl.fooB()");
- }
- }
-
-
ApplicationContext：Spring配置文件 文件默认在src目录下
- <?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-3.1.xsd
- http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
- http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd
- http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd">
- <aop:config>
- <aop:aspect id="TestAspect" ref="aspectBean">
- <!--配置com.spring.service包下所有类或接口的所有方法-->
- <aop:pointcut id="businessService" expression="execution(* com.spring.service.*.*(..))" />
- <aop:before pointcut-ref="businessService" method="doBefore"/>
- <aop:after pointcut-ref="businessService" method="doAfter"/>
- <aop:around pointcut-ref="businessService" method="doAround"/>
- <aop:after-throwing pointcut-ref="businessService" method="doThrowing" throwing="ex"/>
- </aop:aspect>
- </aop:config>
- <bean id="aspectBean" class="com.spring.aop.TestAspect" />
- <bean id="aService" class="com.spring.service.AServiceImpl"></bean>
- <bean id="bService" class="com.spring.service.BServiceImpl"></bean>
- </beans>
package com.spring.main; import org.springframework.context.support.ClassPathXmlApplicationContext; import com.spring.service.AService; //测试类 public class SpringAOPTest { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub ClassPathXmlApplicationContext ctx = new ClassPathXmlApplicationContext( "ApplicationContext.xml"); //对于实现接口的类，要得到它的接口的bean而不是接口的实现类 AService aServiceImpl = (AService) ctx.getBean("aService"); aServiceImpl.barA(); aServiceImpl.fooA("这是springaop测试类！"); // AService b=(AService) ctx.getBean("bService"); // b.barA(); // b.fooA("这是没有实现接口的类！"); } }
