ProxyFactoryBean(代码)
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ProxyFactoryBean(代码)
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UserDao.java接口:
package com.liu.jdk;public interface UserDao {public void addUser();public void deleteUser();}UserDaoImpl.java接口實現類:
package com.liu.jdk;//目標類 public class UserDaoImpl implements UserDao {@Overridepublic void addUser() {// TODO Auto-generated method stubSystem.out.println("添加方法");}@Overridepublic void deleteUser() {// TODO Auto-generated method stubSystem.out.println("刪除方法");}}MyAspect.java切面類:
package com.liu.factorybean;import org.aopalliance.intercept.MethodInterceptor; import org.aopalliance.intercept.MethodInvocation;public class MyAspect implements MethodInterceptor {public void chek() {System.out.println("模擬檢查權限...");}public void log() {System.out.println("模擬記錄日志...");}@Overridepublic Object invoke(MethodInvocation arg) throws Throwable {// TODO Auto-generated method stubchek();Object obj = arg.proceed();log();return obj;}}ApplicationContext.xml配置文件:
<?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/beanshttp://www.springframework.org/schema/beans/spring-beans-4.3.xsd "><!-- 1 目標類 --><bean id = "userDao" class = "com.liu.jdk.UserDaoImpl"></bean><!-- 2 切面類 --><bean id = "aspect" class = "com.liu.factorybean.MyAspect"></bean><!-- 3 使用spring代理工廠定義一個名稱為userDaoProxy的代理對象 --><bean id = "userDaoProxy" class = "org.springframework.aop.framework.ProxyFactoryBean"><!-- 3.1 指定代理實現的接口--><property name="proxyInterfaces" value = "com.liu.jdk.UserDao"></property><!-- 3.2 指定目標對象 --><property name="target" ref = "userDao"></property><!-- 3.3 指定切面 織入環繞通知 --><property name="interceptorNames" value = "aspect"></property><!-- 3.4 指定代理方式 true:使用cglib,false:使用jdk(默認false) --><property name="proxyTargetClass" value = "true"></property></bean></beans>FactoryBeanTest.java測試類:
package com.liu.factorybean;import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext;import com.liu.jdk.UserDao;public class FactoryBeanTest {public static void main(String[] args) {String xmlpath = "com/liu/factorybean/ApplicationContext.xml";ApplicationContext applicationContext = new ClassPathXmlApplicationContext(xmlpath);UserDao userDao = (UserDao) applicationContext.getBean("userDaoProxy");//執行userDao.addUser();userDao.deleteUser();}}運行結果:
模擬檢查權限... 添加方法 模擬記錄日志... 模擬檢查權限... 刪除方法 模擬記錄日志...需要的包:
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