Spring之AOP四种实现方式

在spring中配置一个aop的方式共四种

1）动态代理方式：通过spring提供的代理对象实现aop的配置
2）基于spring整合的aspectJ
3）纯POJO
4）基于annotation方式

package com.linkcyzk.service;public interface UserService {public void addUser();}

package com.linkcyzk.service.impl;import com.linkcyzk.service.UserService;/** * 业务层 * @author Administrator */public class UserServiceImpl implements UserService {@Overridepublic void addUser() {System.out.println("AddUser....................."+this);}}

方式一：动态代理方式

1．需要导入spring-aop.jar

2．编写目标代码

package com.linkcyzk.aop;import java.lang.reflect.Method;import org.springframework.aop.MethodBeforeAdvice;public class MyAOPBefore implements MethodBeforeAdvice {/** * @param arg0:目标方法的方法对象 * @param arg1：目标方法的参数列表 * @param arg2：目标对象 */@Overridepublic void before(Method arg0, Object[] arg1, Object arg2) throws Throwable {System.out.println(arg0.getName());System.out.println(arg2);System.out.println("MyAopBefore...............");}}

package com.linkcyzk.aop;import java.lang.reflect.Method;import org.springframework.aop.AfterReturningAdvice;public class MyAOPAfter implements AfterReturningAdvice {@Overridepublic void afterReturning(Object arg0, Method arg1, Object[] arg2, Object arg3) throws Throwable {// TODO Auto-generated method stubSystem.out.println("后置通知aaaaaaaaaaaaa");}}

package com.linkcyzk.aop;import org.aopalliance.intercept.MethodInterceptor;import org.aopalliance.intercept.MethodInvocation;public class MyAOPMethodIntercepror implements MethodInterceptor {@Overridepublic Object invoke(MethodInvocation arg0) throws Throwable {System.out.println("Before####################");arg0.proceed();System.out.println("After####################");return null;}}

package com.linkcyzk.aop;import java.lang.reflect.Method;import org.springframework.aop.ThrowsAdvice;public class MyAOPThrow implements ThrowsAdvice {public void  afterThrowing(Method method,Object[] args,Object obj,Throwable t) {System.out.println("出错了。。。。。。。。");}}

package com.linkcyzk.test;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;import com.linkcyzk.service.UserService;/** * 测试类 * @author Administrator */public class Test {public static void main(String[] args) {ApplicationContext ac=new ClassPathXmlApplicationContext("applicationContext.xml");    UserService us=(UserService) ac.getBean("userServiceAOP");    us.addUser();}}

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xmlns:aop="http://www.springframework.org/schema/aop"    xsi:schemaLocation="http://www.springframework.org/schema/beans        http://www.springframework.org/schema/beans/spring-beans.xsd        http://www.springframework.org/schema/aop        http://www.springframework.org/schema/aop/spring-aop.xsd"><!--1、配置目标对象  --><bean id="userService" class="com.linkcyzk.service.impl.UserServiceImpl"></bean><!--2、AOP  --><bean id="myAopBefore" class="com.linkcyzk.aop.MyAOPBefore"></bean><!--4、配置后置aop通知  --><bean id="myAopAfter" class="com.linkcyzk.aop.MyAOPAfter"></bean><!--5、配置切面  --><bean id="myAOPMethod" class="com.linkcyzk.aop.MyAOPMethodIntercepror"></bean><!--6、配置异常通知  --><bean id="myAopThrow" class="com.linkcyzk.aop.MyAOPThrow"></bean><!--3、置入  --><bean id="userServiceAOP" class="org.springframework.aop.framework.ProxyFactoryBean"><!--3.1配置目标  --><property name="target"><ref bean="userService"/></property><!--3.2配置目标实现的接口  --><property name="proxyInterfaces"><value>com.linkcyzk.service.UserService</value></property><!--3.3配置aop  --><property name="interceptorNames"><list><value>myAopBefore</value><value>myAopAfter</value><value>myAOPMethod</value><value>myAopThrow</value></list></property></bean></beans>

方式二、基于spring整合的aspectJ

package com.linkcyzk.aopaspectj;import java.lang.reflect.Method;import org.springframework.aop.MethodBeforeAdvice;public class MyAOPAspectj implements MethodBeforeAdvice{@Overridepublic void before(Method arg0, Object[] arg1, Object arg2) throws Throwable {System.out.println("before<<<<<<<<<<<<<<<<<<aspectj");}}

package com.linkcyzk.aopaspectj;import java.lang.reflect.Method;import org.springframework.aop.AfterReturningAdvice;public class MyAOPAspectjAfter implements AfterReturningAdvice{@Overridepublic void afterReturning(Object arg0, Method arg1, Object[] arg2, Object arg3) throws Throwable {System.out.println("MyAOPAspectjAfter>>>>>>>>>>>>>>>>>>>>>"+this);} }

package com.linkcyzk.test;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;import com.linkcyzk.service.UserService;public class Test2 {public static void main(String[] args) {ApplicationContext ac=new ClassPathXmlApplicationContext("applicationContext2.xml");UserService us=(UserService) ac.getBean("userService");us.addUser();}}

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"xsi:schemaLocation="http://www.springframework.org/schema/beans        http://www.springframework.org/schema/beans/spring-beans.xsd        http://www.springframework.org/schema/aop        http://www.springframework.org/schema/aop/spring-aop.xsd"><!--1配置切面 --><bean id="myAop" class="com.linkcyzk.aopaspectj.MyAOPAspectj"></bean><bean id="myAopAfter" class="com.linkcyzk.aopaspectj.MyAOPAspectjAfter"></bean><!--2目标 --><bean id="userService" class="com.linkcyzk.service.impl.UserServiceImpl"></bean><!--3置入 --><aop:config><!-- 命名空间 --><aop:pointcut expression="execution(* com.linkcyzk.service.impl.UserServiceImpl.*(..))"id="mycut" /><!--advice-ref="":关联切面pointcut-ref=""：切点  --><aop:advisor advice-ref="myAop" pointcut-ref="mycut"/><aop:advisor advice-ref="myAopAfter" pointcut-ref="mycut"/></aop:config></beans>

方式三、纯POJO

package com.linkcyzk.pojo;public class AOPPojo {public void beforePojo(){System.out.println("pojoBefore+++++++++++++++++++");}public void afterPojo(){System.out.println("-------------------------pojoAfter");}}

package com.linkcyzk.test;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;import com.linkcyzk.service.UserService;public class Test3 {public static void main(String[] args) {ApplicationContext ac=new ClassPathXmlApplicationContext("applicationContext3.xml");UserService us=(UserService) ac.getBean("userService");us.addUser();}}

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xmlns:aop="http://www.springframework.org/schema/aop"    xsi:schemaLocation="http://www.springframework.org/schema/beans        http://www.springframework.org/schema/beans/spring-beans.xsd        http://www.springframework.org/schema/aop        http://www.springframework.org/schema/aop/spring-aop.xsd">              <!-- 配置切面 -->      <bean id="myAop2" class="com.linkcyzk.pojo.AOPPojo"></bean>      <!-- 目标 -->      <bean id="userService" class="com.linkcyzk.service.impl.UserServiceImpl"></bean>            <!-- 织入 -->      <aop:config>      <aop:aspect ref="myAop2">      <aop:pointcut expression="execution(* com.linkcyzk.service.impl.UserServiceImpl.*(..)) " id="mycut"/>      <aop:before method="beforePojo" pointcut-ref="mycut"/>      </aop:aspect>            </aop:config>      </beans>

方式四 、基于annotation方式

待续。。。。。。。。。。。