Spring AOP实现方式(配置)

来源：互联网发布：menevit副作用知乎编辑：程序博客网时间：2024/05/29 15:01

1．pom.xml

<dependency>    <groupId>org.aspectj</groupId>    <artifactId>aspectjweaver</artifactId>    <version>1.8.9</version></dependency>...其他spring dependency

2．UserService.java

public class UserService {    public String saveUser(String text){        System.out.println("###调用saveUser方法####");        return text;    };    public String update(String text){        System.out.println("###调用update方法####");        return text;    };    public String delete(String text){        System.out.println("###调用delete方法####");        return text;    };}

3． Advices.java

import org.aspectj.lang.JoinPoint;import org.aspectj.lang.ProceedingJoinPoint;//通知者public class Advices {    //在目标方法之前执行    public void before(JoinPoint joinPoint){        System.err.println("Before ...");    }    //在目标方法之后执行    public void after(JoinPoint joinPoint){        System.err.println("After ...");    }    //在目标方法返回之后执行    public void afterReturning(JoinPoint joinPoint){        System.err.println("afterReturning ...");    }    public void around(ProceedingJoinPoint joinPoint){        System.err.println("around ...");    }}

４．context.xml

<bean id="userService" class="com.ecs.AOP.UserService" >    </bean>    <bean id="advices" class="com.ecs.AOP.Advices" >    </bean>    <aop:aspectj-autoproxy></aop:aspectj-autoproxy>    <aop:config proxy-target-class="true" >        <aop:aspect ref="advices" >            <aop:pointcut expression="execution(* com.ecs.AOP.UserService.save*(..) or                                      execution(* com.ecs.AOP.UserService.update(..)) or                                       execution(* com.ecs.AOP.UserService.delete(..))" id="pointcut1"/>            <aop:before method="before" pointcut-ref="pointcut1"/>            <aop:after method="after" pointcut-ref="pointcut1"/>        </aop:aspect>    </aop:config>

５．Test

@RunWith(SpringJUnit4ClassRunner.class)@ContextConfiguration({"classpath:servlet-context.xml","classpath:applicationContext.xml"})@WebAppConfigurationpublic class UnitTest {    @Autowired    private WebApplicationContext wac;    @Test    public void test(){        try {            UserService userService = wac.getBean(UserService.class);            String text = userService.saveUser("hello");            System.err.println(text);        } catch (BeansException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }    }}

0 0