带你了解Spring AOP的使用详解

带你了解Spring AOP的使用详解

目录springmvc.xmlBankDaoAdminCheckBankDaoImplLogInfoTransmactionAdminCheckInterceptorLogInfoInceptorTransmactionInterceptorTest总结

springmvc.xml

xmlns:xsi="http://w3.org/2001/XMLSchema-instance"

xmlns:context="http://springframework.org/schema/context"

xmlns:aop="http://springframework.org/schema/aop"

xmlns:tx="http://springframework.org/schema/tx"

xmlns:mvc="http://springframework.org/schema/mvc"

xsi:schemaLocation="http://springframework.org/schema/beans

https://springframework.org/schema/beans/spring-beans.xsd

http://springframework.org/schema/context

https://springframework.org/schema/context/spring-context.xsd

http://springframework.org/schema/aop

https://springframework.org/schema/aop/spring-aop.xsd

http://springframework.org/schema/tx

https://springframework.org/schema/tx/spring-tx.xsd

http://springframework.org/schema/mvc

https://springframework.org/schema/mvc/spring-mvc.xsd">

adminCheckInterceptor

logInfoInceptor

transmactionInterceptor

xmlns:xsi="http://w3.org/2001/XMLSchema-instance"

xmlns:context="http://springframework.org/schema/context"

xmlns:aop="http://springframework.org/schema/aop"

xmlns:tx="http://springframework.org/schema/tx"

xmlns:mvc="http://springframework.org/schema/mvc"

xsi:schemaLocation="http://springframework.org/schema/beans

https://springframework.org/schema/beans/spring-beans.xsd

http://springframework.org/schema/context

https://springframework.org/schema/context/spring-context.xsd

http://springframework.org/schema/aop

https://springframework.org/schema/aop/spring-aop.xsd

http://springframework.org/schema/tx

https://springframework.org/schema/tx/spring-tx.xsd

http://springframework.org/schema/mvc

https://springframework.org/schema/mvc/spring-mvc.xsd">

adminCheckInterceptor

logInfoInceptor

transmactionInterceptor

BankDao

package cn.hp.dao;

public interface BankDao {

/**

* 存钱

*/

public void remit();

/**

* 取钱

*/

public void withdrawMoney();

/**

* 转账

*/

public void transferAccounts();

}

AdminCheck

package cn.hp.impl;

public class AdminCheck {

public void check(){

System.out.println("正在验证账号信息");

}

}

BankDaoImpl

package cn.hp.impl;

import cn.hp.dao.BankDao;

public class BankDaoImpl implements BankDao {

@Override

public void remit() {

// adminCheck.check();

// transmaction.beginTransmaction();

System.out.println("存钱的业务逻辑");

// transmaction.closeTransmaction();

}

@Override

public void withdrawMoney() {

// adminCheck.check();

// transmaction.beginTransmaction();

System.out.println("取钱的业务逻辑");

// transmaction.closeTransmaction();

}

@Override

public void transferAccounts() {

System.out.println("转账的业务逻辑");

}

}

LogInfo

package cn.hp.impl;

public class LogInfo {

public void write(){

System.out.println("写日志中");

}

}

Transmaction

package cn.hp.impl;

import org.aspectj.lang.ProceedingJoinPoint;

public class Transmaction {

public void beginTransmaction(){

System.out.println("开始事务");

}

public void closeTransmaction(){

System.out.println("结束事务");

}

public void dointcepter(ProceedingJoinPoint point) throws Throwable {

beginTransmaction();

point.proceed();

closeTransmaction();

}

}

AdminCheckInterceptor

package cn.hp.interceptor;

import cn.hp.impl.AdminCheck;

import org.springframework.aop.MethodBeforeAdvice;

import java.lang.reflect.Method;

import java.util.Set;

public class AdminCheckInterceptor implements MethodBeforeAdvice {

private AdminCheck adminCheck;

public AdminCheck getAdminCheck() {

return adminCheck;

}

public void setAdminCheck(AdminCheck adminCheck) {

this.adminCheck = adminCheck;

}

@Override

public voidhttp:// before(Method method, Object[] objects, Object o) throws Throwable {

adminCheck.check();

}

}

LogInfoInceptor

package cn.hp.interceptor;

import cn.hp.impl.LogInfo;

import org.springframework.aop.AfterReturningAdvice;

import java.lang.reflect.Method;

public class LogInfoInceptor implements AfterReturningAdvice {

private LogInfo logInfo;

public LogInfo getLogInfo() {

return logInfo;

}

public void setLogInfo(LogInfo logInfo) {

this.logInfo = logInfo;

}

@Override

public void afterReturning(Object o, Method method, Object[] objects, Object o1) throws Throwable {

logInfo.write();

}

}

TransmactionInterceptor

package cn.hp.interceptor;

import cn.hp.impl.Transmaction;

import org.aopalliance.intercept.MethodInterceptor;

import org.aopalliance.intercept.MethodInvocation;

import org.apache.ibatis.transaction.Transaction;

public class TransmactionInterceptor implements MethodInterceptor {

private Transmaction transmaction;

public Transmaction getTransmaction() {

return transmaction;

}

public void setTransmaction(Transmaction transmaction) {

this.transmaction = transmaction;

}

@Override

public Object invoke(MethodInvocation invocation) throws Throwable {

transmaction.beginTransmaction();

Object obj = invocation.proceed();

transmaction.closeTransmaction();

return obj;

}

}

Test

package cn.hp.test;

import cn.hp.dao.BankDao;

import org.springframework.context.ApplicationContext;

import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Test {

public static void main(String[] args) {

//test1();

// test2();

test3();

}

private static void test3() {

ApplicationContext ac= new ClassPathXmlApplicationContext("springmvc.xml");

BankDao proxyFactory = ac.getBean("proxyFactory", BankDao.class);

proxyFactory.remit();

}

private static void test2() {

ApplicationContext ac = new ClassPathXmlApplicationContext("springmvc.xml");

BankDao bd = ac.getBean("bankDao",BankDao.class);

bd.transferAccounts();

}

private static void test1() {

ApplicationContext ac = new ClassPathXmlApplicationContext("springmvc.xml");

BankDao bd = ac.getBean("bankDao",BankDao.class);

bd.withdrawMoney();

}

}

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