aspect 切面

package com.yr.aspect;

import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.After;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.AfterThrowing;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.springframework.stereotype.Component;
@Aspect
@Component
public class MyAspect {
@Pointcut(“execution(* com.yr.server.impl..(…))”)
public void doPointCut(){}

@Before("doPointCut()")
public void bofore(){
	System.out.println("前置通知");
}


@After("doPointCut()")
public void after(){
	System.out.println("最终通知");
}


@AfterReturning(value="doPointCut()",returning="returnVal")
public void afterReturn(Object returnVal){
	//System.out.println(returnVal);
	System.out.println("后置通知");
}


@Around("doPointCut()")
public Object round(ProceedingJoinPoint jp) throws Throwable{
	System.out.println("环绕通知前");
	
	Object obj= jp.proceed();
	System.out.println("环绕通知之后");
	return obj;
}


@AfterThrowing(value="doPointCut()",throwing="e")
public void expection(JoinPoint jp,Throwable e){
	System.out.println(jp.getSignature().getName());
	System.out.println("异常通知");
}

}

注意：在application.xml文件中配置<aop:aspectj-autoproxy/>
	捕获的是server层的异常