-
配置文件与注解方式的有很大不同,多了很多配置项。
beans2.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="test.spring.service.impl.PersonServiceBean"></bean> <bean id="myInterceptor" class="test.spring.aop.MyInterceptor2"></bean> <aop:config> <aop:aspect id="myAspect" ref="myInterceptor"> <aop:pointcut id="myPointCut" expression="execution(* test.spring.service.impl.PersonServiceBean.*(..))" /> <aop:before pointcut-ref="myPointCut" method="doAccessCheck" /> <aop:after-returning pointcut-ref="myPointCut" method="doAfterReturning" /> <aop:after-throwing pointcut-ref="myPointCut" method="doAfterThrowing" /> <aop:around pointcut-ref="myPointCut" method="doAround" /> <aop:after pointcut-ref="myPointCut" method="doAfter" /> </aop:aspect> </aop:config></beans>
切面的切入点语法定义
- 拦截test.spring.service.impl.PersonServiceBean下的所有方法expression="execution(* test.spring.service.impl.PersonServiceBean.*(..))"
- 拦截test.spring.service.impl子包下的所有类的所有方法expression="execution(* test.spring.service.impl..*.*(..))"
- 拦截test.spring.service.impl.PersonServiceBean下的所有返回值为String类型的方法expression="execution(java.lang.String test.spring.service.impl.PersonServiceBean.*(..))"
- 拦截test.spring.service.impl.PersonServiceBean下的所有方法中第一个参数类型为String的方法expression="execution(* test.spring.service.impl.PersonServiceBean.*(java.lang.String,..))"
- package test.spring.service.impl;
- import test.spring.service.PersonService;
- //代理对象实现目标对象所有接口
- public class PersonServiceBean implements PersonService {
- public PersonServiceBean() {
- }
- @Override
- public void save(String name) {
- System.out.println("save()->>" + name);
- throw new RuntimeException(">>----自定义异常----<<");
- }
- @Override
- public String getResult() {
- return "getResult()==>>返回结果";
- }
- }
- package test.spring.aop;
- import org.aspectj.lang.ProceedingJoinPoint;
- public class MyInterceptor2 {
- 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("异常通知-->");
- }
- public Object doAround(ProceedingJoinPoint pJoinPoint) throws Throwable {
- System.out.println("环绕通知");
- // 这里如果pJoinPoint.proceed()不执行,后面拦截到的方法都不会执行,非常适用于权限管理
- Object result = pJoinPoint.proceed();
- System.out.println("退出");
- return result;
- }
- }
- package test.spring.junit;
- import org.junit.Test;
- import org.springframework.context.support.AbstractApplicationContext;
- import org.springframework.context.support.ClassPathXmlApplicationContext;
- import test.spring.service.PersonService;
- public class AOPTest3 {
- @Test
- public void test() {
- AbstractApplicationContext aContext = //
- new ClassPathXmlApplicationContext("beans2.xml");
- PersonService pService = (PersonService) aContext
- .getBean("personService");
- pService.save("LinDL");
- pService.getResult();
- aContext.close();
- }
- }