aop切面,获取参数

添加pom

1 <dependency>
2             <groupId>org.aspectj</groupId>
3             <artifactId>aspectjweaver</artifactId>
4             <version>1.8.13</version>
5 </dependency>

配置MyAspect

 1 public class MyAspect implements MethodInterceptor {
 2     @Override
 3     public Object invoke(MethodInvocation invocation) throws Throwable {
 4         return null;
 5     }
 6 
 7     public Object myAround(ProceedingJoinPoint proceedingJoinPoint) throws Throwable {
 8         Signature signature = proceedingJoinPoint.getSignature();
 9 
10         //获取方法名
11         System.out.println(signature.getName());
12         //获取类名
13         System.out.println(signature.getDeclaringTypeName());
14         Object[] objs = proceedingJoinPoint.getArgs();
15         //循环输出参数
16         for (Object obj : objs) {
17             System.out.println(obj.toString());
18         }
19         //方法执行前逻辑处理
20         System.out.println("开始");
21         Object obj = proceedingJoinPoint.proceed();
22         //输出执行结果
23         System.out.println(obj.toString());
24         
25         //方法执行后逻辑处理        
26         System.out.println("结束");
27         return obj;
28     }
29 }

配置Service

1 public interface UserService {
2     UserBean Say(UserBean str);
3 }

 1 @Service
 2 public class UsereServiceImpl implements UserService {
 3 
 4     @Override
 5     public UserBean Say(UserBean str) {
 6         System.out.println("User被创建。。。。。" + str.toString());
 7         str.setName("testtest");
 8         return str;
 9     }
10 }

配置spring.xml

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 3        xmlns:aop="http://www.springframework.org/schema/aop"
 4        xmlns="http://www.springframework.org/schema/beans"
 5        xsi:schemaLocation="http://www.springframework.org/schema/beans
 6                            http://www.springframework.org/schema/beans/spring-beans.xsd
 7                            http://www.springframework.org/schema/aop
 8                            http://www.springframework.org/schema/aop/spring-aop.xsd">
 9     <bean name="myUserService" class="com.muyi.service.impl.UsereServiceImpl"/>
10     <bean name="MyAspect" class="com.muyi.MyAspect"/>
11     <aop:config proxy-target-class="true">
12         <aop:aspect ref="MyAspect">
13             <aop:pointcut id="myPointcut" expression="execution(* com.muyi.service.*.*(..))"></aop:pointcut>
14             <aop:around method="myAround" pointcut-ref="myPointcut"/>
15         </aop:aspect>
16     </aop:config>
17 </beans>

Test

1 @Test
2     public void bean2() {
3         ApplicationContext context = new ClassPathXmlApplicationContext("bean1.xml");
4         UserService userService = (UserService) context.getBean("myUserService");
5         UserBean userBean = new UserBean();
6         userBean.setAge(20);
7         userBean.setName("test");
8         userService.Say(userBean);
9     }

运行结果

Say
com.muyi.service.impl.UsereServiceImpl
UserBean{name='test', age=20, car=null}
开始
User被创建。。。。。UserBean{name='test', age=20, car=null}
UserBean{name='testtest', age=20, car=null}
结束