说明
昨天进行了两个方法的静态代理(方法抽象),那么更多方法的静态代理会是怎样呢
现在我们在昨天实践的基础上再进行一次静态代理,昨日实践链接:
今日对应目录,所有操作对应以下操作进行:
下面我们开始今天的实践~
一、xml中配置全注解
<?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:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd"> <!-- 开启扫描 --> <context:component-scan base-package="com.nenu"/> </beans>
二、UserService接口和UserServiceImpl类
1.UserService接口:
package com.nenu.service; public interface UserService { public void add(); public void other(); }
2.UserServiceImpl类:
package com.nenu.service.impl; import com.nenu.service.UserService; import org.springframework.stereotype.Component; @Component public class UserServiceImpl implements UserService { @Override public void add() { System.out.println("UserServiceImpl add……"); } @Override public void other() { System.out.println("UserServiceImpl other....."); } public UserServiceImpl(){} }
三、server包(配置非核心业务)
1.ServerManager接口
package com.nenu.server; public interface ServerManager { public void before(); public void after(); }
2.TransactionManager类:
package com.nenu.server; public class TransactionManager implements ServerManager{ public void before(){ System.out.println("TransactionManager Before"); } public void after(){ System.out.println("TransactionManager After"); } }
3.OtherManager类:
package com.nenu.server; public class OtherManager implements ServerManager{ public void before(){ System.out.println("OtherManager Before......"); } public void after(){ System.out.println("OtherManager After......"); } }
四、配置代理(核心业务)
UserServiceStaticProxy类:
package com.nenu.proxy; import com.nenu.server.ServerManager; import com.nenu.service.UserService; public class UserServiceStaticProxy implements UserService { //目标对象 - 代理谁 private UserService target; //要加入记录增强,比如事物时间,加入事务控制 private ServerManager serverManager; //通过构造方法来传入具体要代理的对象 public UserServiceStaticProxy(UserService target, ServerManager serverManager){ this.target = target; this.serverManager = serverManager; } @Override public void add() { //非核心业务1 serverManager.before(); //核心活,目标对象来做 target.add(); //非核心业务2 serverManager.after(); } @Override public void other() { //非核心业务1 serverManager.before(); //核心活,目标对象来做 target.other(); //非核心业务2 serverManager.after(); } }
五、测试
1.ProxyTest类:
package com.nenu; import com.nenu.proxy.UserServiceStaticProxy; import com.nenu.server.OtherManager; import com.nenu.server.ServerManager; import com.nenu.server.TransactionManager; import com.nenu.service.UserService; import org.junit.Test; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; public class ProxyTest { @Test public void UserTest(){ //1.配置容器 ApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml"); //2.取出容器中bean UserService target = (UserService) applicationContext.getBean("userServiceImpl"); //3.创建一个代理对象 //3-1 创建非核心业务增强对象 ServerManager serverManager1 = new TransactionManager(); ServerManager serverManager2 = new OtherManager(); //3-2 创建代理对象 UserServiceStaticProxy proxy = new UserServiceStaticProxy(target, serverManager1); proxy = new UserServiceStaticProxy(proxy, serverManager2); //4.调用 proxy.add(); proxy.other(); } }
2.测试
如上图,在昨天的基础上OtherManager类的方法代理就添加成功了
成功!!!
原文地址:https://www.cnblogs.com/yangf428/p/12319394.html
时间: 2024-10-13 18:03:18