Spring切面二使用注解
【摘要】
package com.IC; public interface PhoneBiz { public void buyPhone(int num); //购买手机; public void salePhone(int num); //销售手机}
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package com.IC;
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public interface PhoneBiz {
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public void buyPhone(int num); //购买手机;
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public void salePhone(int num); //销售手机
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}
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package com.bean;
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import com.IC.*;
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public class PhoneBizImpl implements PhoneBiz {
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public void buyPhone(int num) {
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System.out.println("购买手机"+num);
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}
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public void salePhone(int num) {
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System.out.println("销售手机"+num);
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}
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}
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package com.bean;
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import java.text.SimpleDateFormat;
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import java.util.Date;
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import javax.servlet.jsp.tagext.TryCatchFinally;
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import org.aspectj.lang.JoinPoint;
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import org.aspectj.lang.ProceedingJoinPoint;
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import org.aspectj.lang.annotation.AfterReturning;
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import org.aspectj.lang.annotation.Around;
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import org.aspectj.lang.annotation.Aspect;
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import org.aspectj.lang.annotation.Before;
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import org.aspectj.lang.annotation.Pointcut;
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@Aspect
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public class LogAspect {
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/*切入点*/
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@Pointcut("execution(void *Phone(int))")
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public void p1(){}
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@Before("p1()")
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public void before(JoinPoint jp)throws Throwable{
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Object[]args=jp.getArgs(); //目标方法所有参数;
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String methodName=jp.getSignature().getName(); //获得目标方法名称;
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if("buyPhone".equals(methodName)){
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System.out.println(currentTime()+"即将执行进货操作,数量为:"+args[0]);
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}
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if("salePhone".equals(methodName)){
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System.out.println(currentTime()+"即将执行销售操作,数量为:"+args[0]);
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}
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}
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@AfterReturning("p1()")
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public void afterReturing(JoinPoint jp)throws Throwable{
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String methodName=jp.getSignature().getName();
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if("buyPhone".equals(methodName)){
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System.out.println(currentTime()+"进货完毕");
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}
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if("salePhone".equals(methodName)){
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System.out.println(currentTime()+"销售完毕");
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}
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}
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/*环绕通知*/
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@Around("p1()")
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public Object after(ProceedingJoinPoint pjp)throws Throwable{
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String method=pjp.getSignature().getName();
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long begin=System.currentTimeMillis();
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System.out.println(currentTime()+":"+method+"方法开始执行，计时开始");
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try {
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return pjp.proceed();
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}finally{
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long end=System.currentTimeMillis();
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System.out.println(currentTime()+"耗时:"+(end-begin)+"毫秒");
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}
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}
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private String currentTime() {
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SimpleDateFormat sdf=new SimpleDateFormat("yyyy:MM:dd HH:mm:ss");
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return sdf.format(new Date());
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}
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}
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package com.test;
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import org.springframework.context.ApplicationContext;
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import org.springframework.context.support.ClassPathXmlApplicationContext;
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import com.IC.PhoneBiz;
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import com.bean.PhoneBizImpl;
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public class Test {
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public static void main(String[] args) {
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ApplicationContext ac=new ClassPathXmlApplicationContext("applicationContext.xml");
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PhoneBiz pb=(PhoneBiz) ac.getBean("phoneBiz");
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pb.buyPhone(100);
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pb.salePhone(40);
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}
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}
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<?xml version="1.0" encoding="UTF-8"?>
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<beans xmlns="http://www.springframework.org/schema/beans"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xmlns:p="http://www.springframework.org/schema/p"
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xmlns:aop="http://www.springframework.org/schema/aop"
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xmlns:context="http://www.springframework.org/schema/context"
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xsi:schemaLocation="http://www.springframework.org/schema/beans
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http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
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http://www.springframework.org/schema/context
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http://www.springframework.org/schema/context/spring-context-3.0.xsd
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http://www.springframework.org/schema/aop
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http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">
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<!-- 启用注解配置 -->
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<aop:aspectj-autoproxy></aop:aspectj-autoproxy>
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<!-- 目标业务对象 -->
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<bean id="phoneBiz" class="com.bean.PhoneBizImpl"></bean>
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<!-- 日志管理切面 -->
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<bean class="com.bean.LogAspect"></bean>
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</beans>
文章来源: aaaedu.blog.csdn.net，作者：tea_year，版权归原作者所有，如需转载，请联系作者。
原文链接：aaaedu.blog.csdn.net/article/details/53913514
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