AOP annotations in automatic assembly notice

AOP annotations in automatic assembly notice

First, create an annotated class:

Note: aop introduction

package cn.csdn.util;

import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.After;
import org.aspectj.lang.annotation.AfterThrowing;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;

public class ServiceImpl implements Service {

         * @Before("execution(* work())") The first parameter in the method "*" Is a return value, the second parameter "work()" Is the method name
         * */
        @Before("execution(* goWork())")
        public void eat(JoinPoint jp) {
                // TODO Auto-generated method stub
                System.out.println("I'm eating!!!");
                 *  Output is the result of : I'm eating!!!  I'm working !

         * After(execution(*
         * cn.csdn.service.Emp*.*(..))) First parameter method (*) Is a return value, the second parameter is located in cn.csdn.service
         *  All package prefix is under Emp class methods ,((..)) Represents the method argument can be of variable parameters
         * */
        @After("execution(* cn.csdn.service.Emp*.*(..))")
        public void goCompany() {
                // TODO Auto-generated method stub
                System.out.println("I want to go home");
 *  Summary of the return value is void and * Two types of representation of the method name directly write method name . Write which method of that class or the class and method name fuzzy match */
        @AfterThrowing(pointcut = "execution(* *..EmpService*.*(..))", throwing = "ex")
        public void leave(Exception ex) {
                // TODO Auto-generated method stub
                System.out.println("I want leav");

        @Before("execution(* cn.csdn.service.EmpServiceImpl.*(..))")
        public void goHome() {
                // TODO Auto-generated method stub
                System.out.println("I want go Home");


        @Around("execution(* *..Emp*.goWork(..))")
        public void signIn() {
                // TODO Auto-generated method stub
                System.out.println("I around before");
                System.out.println("I around after");



The part of the xml code:

<beans xmlns=""



source code is as follows:

分类:Java 时间:2011-05-08 人气:263
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