aop (java.lang.String)
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cn.itcast.service
- package cn.itcast.service;
- public interface PersonService {
- public void save(String name);
- public void update(String name, Integer id);
- public String getPersonName(Integer id);
- }
- package cn.itcast.service;
- import org.aspectj.lang.ProceedingJoinPoint;
- /**
- * 切面
- *
- */
- public class MyInterceptor {
- public void doAccessCheck() {
- System.out.println("前置通知");
- }
- public void doAfterReturning() {
- System.out.println("后置通知");
- }
- public void doAfter() {
- System.out.println("最终通知");
- }
- public void doAfterThrowing() {
- System.out.println("例外通知");
- }
- public Object doBasicProfiling(ProceedingJoinPoint pjp) throws Throwable {
- System.out.println("进入方法");
- Object result = pjp.proceed();
- System.out.println("退出方法");
- return result;
- }
- }
cn.itcast.service.impl
- package cn.itcast.service.impl;
- import cn.itcast.service.PersonService;
- public class PersonServiceBean implements PersonService {
- public String getPersonName(Integer id) {
- System.out.println("我是getPersonName()方法");
- return "xxx";
- }
- public void save(String name) {
- //throw new RuntimeException("我爱例外");
- System.out.println("我是save()方法");
- }
- public void update(String name, Integer id) {
- System.out.println("我是update()方法");
- }
- }
junit.test
- package junit.test;
- import org.junit.BeforeClass;
- import org.junit.Test;
- import org.springframework.context.ApplicationContext;
- import org.springframework.context.support.ClassPathXmlApplicationContext;
- import cn.itcast.service.PersonService;
- public class testAOP {
- @BeforeClass
- public static void setUpBeforeClass() throws Exception {
- }
- @Test public void interceptorTest(){
- ApplicationContext cxt = new ClassPathXmlApplicationContext("beans.xml");
- PersonService personService = (PersonService)cxt.getBean("personService");
- personService.getPersonName(2);
- }
- }
beans.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:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd"> <aop:aspectj-autoproxy/> <bean id="personService" class="cn.itcast.service.impl.PersonServiceBean"></bean> <bean id="aspetbean" class="cn.itcast.service.MyInterceptor"/> <aop:config> <aop:aspect id="asp" ref="aspetbean"> <!-- 第一个代表返回值类型,中间的代表包,括号中的代表参数, --> <aop:pointcut id="mycut" expression="execution(* cn.itcast.service..*.*(java.lang.String,..))"/> <aop:before pointcut-ref="mycut" method="doAccessCheck"/> <aop:after-returning pointcut-ref="mycut" method="doAfterReturning"/> <aop:after-throwing pointcut-ref="mycut" method="doAfterThrowing"/> <aop:after pointcut-ref="mycut" method="doAfter"/> <aop:around pointcut-ref="mycut" method="doBasicProfiling"/> </aop:aspect> </aop:config></beans>
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