spring aop详解

2019-11-06 07:53:01

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<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.sPRingframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"> <bean id="test1Service" class="com.aop.Test1Service"> </bean>  <bean id="MyMethodBeforeAdvice" class="com.aop.MyMethodBeforeAdvice" /> <bean id="proxyFactoryBean" class="org.springframework.aop.framework.ProxyFactoryBean">  <property name="proxyInterfaces"> <list> <value>com.aop.TestServiceInter</value> <value>com.aop.TestServiceInter2</value> </list> </property>  <property name="interceptorNames"> <value>MyMethodBeforeAdvice</value> </property>  <property name="target" ref="test1Service"/> </bean></beans>

Test1Service.java

package com.aop;/** * Created by lion on 17/3/2. */public class Test1Service implements TestServiceInter, TestServiceInter2 { public void sayTest1Service() { System.out.println("this is test1 service"); } public void sayHello() { System.out.println("Hello World 1"); } public void sayHello1() { System.out.println("Hello World 2"); }}

MyMethodBeforeAdvice.java

package com.aop;import org.springframework.aop.MethodBeforeAdvice;import java.lang.reflect.Method;/** * Created by lion on 17/3/2. */public class MyMethodBeforeAdvice implements MethodBeforeAdvice { public void before(Method method, Object[] objects, Object o) throws Throwable { System.out.println("this is before info"); }}

TestServiceInter.java

package com.aop;/** * Created by lion on 17/3/2. */public interface TestServiceInter { public void sayHello();}

TestServiceInter2.java

package com.aop;/** * Created by lion on 17/3/2. */public interface TestServiceInter2 { public void sayHello1();}

测试

import com.aop.Test1Service;import com.aop.TestServiceInter;import com.aop.TestServiceInter2;import org.springframework.context.applicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;/** * Created by lion on 17/3/2. */public class TestAopController { public static void main(String[] args) { ApplicationContext context = new ClassPathXmlApplicationContext("ApplicationContext.xml"); TestServiceInter testServiceInter = (TestServiceInter) context.getBean("proxyFactoryBean"); testServiceInter.sayHello(); TestServiceInter2 testServiceInter2 = (TestServiceInter2) context.getBean("proxyFactoryBean"); testServiceInter2.sayHello1(); }}

置后通知

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"> <bean id="test1Service" class="com.aop.Test1Service"> </bean>  <bean id="myMethodBeforeAdvice" class="com.aop.MyMethodBeforeAdvice" />  <bean id="myAfterReturnAdvice" class="com.aop.MyAfterReturnAdvice"/>  <bean id="proxyFactoryBean" class="org.springframework.aop.framework.ProxyFactoryBean">  <property name="proxyInterfaces"> <list> <value>com.aop.TestServiceInter</value> <value>com.aop.TestServiceInter2</value> </list> </property>  <property name="interceptorNames"> <list> <value>myMethodBeforeAdvice</value> <value>myAfterReturnAdvice</value> </list> </property>  <property name="target" ref="test1Service"/> </bean></beans>

MyAfterReturnAdvice.java

package com.aop;import org.springframework.aop.AfterReturningAdvice;import java.lang.reflect.Method;/** * Created by lion on 17/3/4. */public class MyAfterReturnAdvice implements AfterReturningAdvice { public void afterReturning(Object o, Method method, Object[] objects, Object o1) throws Throwable { System.out.println("置后通知..."); }}

环绕通知

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"> <bean id="test1Service" class="com.aop.Test1Service"> </bean>      <bean id="myMethodInterceptor" class="com.aop.MyMethodInterceptor"/>  <bean id="proxyFactoryBean" class="org.springframework.aop.framework.ProxyFactoryBean">  <property name="proxyInterfaces"> <list> <value>com.aop.TestServiceInter</value> <value>com.aop.TestServiceInter2</value> </list> </property>  <property name="interceptorNames"> <list>   <value>myMethodInterceptor</value> </list> </property>  <property name="target" ref="test1Service"/> </bean></beans>

MyMethodInterceptor.java

package com.aop;import org.aopalliance.intercept.MethodInterceptor;import org.aopalliance.intercept.MethodInvocation;/** * Created by lion on 17/3/4. */public class MyMethodInterceptor implements MethodInterceptor { public Object invoke(MethodInvocation methodInvocation) throws Throwable { System.out.println("调用环绕通知之前"); Object obj = methodInvocation.proceed(); System.out.println("调用环绕通知之后"); return obj; }}

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