Spring笔记(五)--注解方式实现AOP

1 package com.dwr.spring.proxy;
2 
3 public interface UserManager {
4     public void addUser(String username,String password);
5     public void deleteUser(int userid);
6     public void modifyUser(int userid,String username,String password);
7     public void findUser(int userid);
8 }

 1 package com.dwr.spring.proxy;
 2 
 3 public class UserManagerImpl implements UserManager {
 4     @Override
 5     public void addUser(String username, String password) {
 6         System.out.println("--------UserManagerImpl.addUser()----------");
 7     }
 8 
 9     @Override
10     public void deleteUser(int userid) {
11         System.out.println("--------UserManagerImpl.deleteUser()----------");
12     }
13 
14     @Override
15     public void modifyUser(int userid, String username, String password) {
16         System.out.println("--------UserManagerImpl.modifyUser()----------");
17     }
18 
19     @Override
20     public void findUser(int userid) {
21         System.out.println("--------UserManagerImpl.findUser()----------");
22     }
23 }

 1 package com.dwr.spring.test;
 2 
 3 import org.aspectj.lang.ProceedingJoinPoint;
 4 import org.aspectj.lang.annotation.*;
 5 
 6 @Aspect
 7 public class Interceptor {
 8 
 9     //定义切入点：对UserManagerImpl类的所有方法进行拦截
10     @Pointcut("execution(* com.dwr.spring.proxy.UserManagerImpl.*(..))")
11     private void anyMethod(){   //切入点的名称：anyMethod()
12 
13     }
14 
15     @Before("anyMethod()")
16     public void doBefore(){
17         System.out.println("执行前通知");
18     }
19 
20     @AfterReturning("anyMethod()")
21     public void doAfterReturning(){
22         System.out.println("执行后通知");
23     }
24 
25     @After("anyMethod()")
26     public void doAfter(){
27         System.out.println("执行最终通知");
28     }
29     @AfterThrowing("anyMethod()")
30     public void afterThrowing(){
31         System.out.println("意外通知");
32     }
33 
34     @Around("anyMethod()")
35     public Object doAround(ProceedingJoinPoint proceedingJoinPoint) throws Throwable {
36         System.out.println("进入环绕判断方法");
37         Object result = proceedingJoinPoint.proceed();
38         System.out.println("退出环绕判断方法");
39         return result;
40     }
41 }

1     <aop:aspectj-autoproxy/>
2 
3     <bean id="userManagerImpl" class="com.dwr.spring.proxy.UserManagerImpl"></bean>
4     <bean id="interceptor" class="com.dwr.spring.test.Interceptor"></bean>

 1 package com.dwr.spring.test;
 2 
 3 import com.dwr.spring.proxy.UserManager;
 4 import org.springframework.context.ApplicationContext;
 5 import org.springframework.context.support.ClassPathXmlApplicationContext;
 6 
 7 public class TestInterceptor {
 8 
 9     public static void main(String[] args){
10 
11         ApplicationContext context = new ClassPathXmlApplicationContext("spring.xml");
12         UserManager userManager = (UserManager) context.getBean("userManagerImpl");
13         userManager.addUser("Jack","123456");
14     }
15 }

 1 package com.dwr.spring.test;
 2 
 3 import org.aspectj.lang.ProceedingJoinPoint;
 4 
 5 public class NewInterceptor {
 6     public void doBefore(){
 7         System.out.println("执行前通知");
 8     }
 9     public void doAfterReturning(){
10         System.out.println("执行后通知");
11     }
12     public void doAfter(){
13         System.out.println("执行最终通知");
14     }
15     public void afterThrowing(){
16         System.out.println("意外通知");
17     }
18     public Object doAround(ProceedingJoinPoint proceedingJoinPoint) throws Throwable {
19         System.out.println("进入环绕判断方法");
20         Object result = proceedingJoinPoint.proceed();
21         System.out.println("退出环绕判断方法");
22         return result;
23     }
24 }

 1 <bean id="userManagerImpl" class="com.dwr.spring.proxy.UserManagerImpl"></bean>
 2     <bean id="aspectbean" class="com.dwr.spring.test.NewInterceptor"></bean>
 3     <aop:config>
 4        <aop:aspect id="aspect" ref="aspectbean">
 5            <aop:pointcut id="cut" expression="execution(* com.dwr.spring.proxy.UserManagerImpl.*(..))"/>
 6            <aop:before method="doBefore" pointcut-ref="cut"/>
 7            <aop:after-returning method="doAfterReturning" pointcut-ref="cut"/>
 8            <aop:after method="doAfter" pointcut-ref="cut"/>
 9            <aop:after-throwing method="afterThrowing" pointcut-ref="cut"/>
10            <aop:around method="doAround" pointcut-ref="cut"/>
11        </aop:aspect>
12      </aop:config>