annotation aop
package com.fh.aop.log;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.*;
import org.springframework.stereotype.Component;
@Component
@Aspect
public class LogAnnotation {
@Pointcut(value = "execution(* com.fh.aop.service.impl.UserServiceImpl.*(..))")
public void pointcut(){}
@Before(value = "pointcut()")
public void beforeMethod() {
System.out.println("before method");
}
@After("pointcut()")
public void afterMethod() {
System.out.println("after method");
}
@Around("pointcut()")
public Object aroundMethod(ProceedingJoinPoint pd) throws Throwable {
System.out.println("环绕前");
Object proceed = pd.proceed();
System.out.println("环绕后");
return proceed;
}
@AfterReturning(value = "pointcut()",returning = "returnVal")
public Object afterMethodReturning(JoinPoint joinPoint,Object returnVal) {
System.out.println("【我是返回后通知】");
return "我是返回后通知";
}
@AfterThrowing("pointcut()")
public void afterMethodEX(){
System.out.println("我是异常通知");
}
}
<!--开启注解支持-->
<aop:aspectj-autoproxy/>
xml版
<bean id="userService" class="com.fh.aop.service.impl.UserServiceImpl"/>
<bean id="log2" class="com.fh.aop.log.Log2"/>
<!--方式二、自定义来实现aop-->
<aop:config>
<aop:aspect ref="log2">
<aop:pointcut id="pointcut"
expression="execution(* com.fh.aop.service.impl.UserServiceImpl.*(..))"/>
<aop:before method="beforeMethod" pointcut-ref="pointcut"/>
<aop:after method="afterMethod" pointcut-ref="pointcut"/>
</aop:aspect>
</aop:config>
<bean id="userService" class="com.fh.aop.service.impl.UserServiceImpl"/>
<bean id="log" class="com.fh.aop.log.BeforeLog"/>
<bean id="afterLog" class="com.fh.aop.log.AfterLog"/> <!--class AfterLog implements AfterReturningAdvice-->
<!--方式一、spring api接口实现-->
<aop:config>
<aop:pointcut id="point"
expression="execution(* com.fh.aop.service.impl.UserServiceImpl.*(..))"/>
<aop:advisor advice-ref="log" pointcut-ref="point"/>
<aop:advisor advice-ref="afterLog" pointcut-ref="point"/>
</aop:config>