Spring的代理模式解决的问题-----Spring框架

曾经终败给现在 2024-03-24 00:08 1阅读 0赞

>     package com.powernode.proxy.client;
>     
>     import com.powernode.proxy.Spring6Config;
>     import com.powernode.proxy.service.impl.OrderServiceImpl;
>     import com.powernode.proxy.service.impl.OrderServiceImplSub;
>     import org.springframework.context.annotation.AnnotationConfigApplicationContext;
>     
>     public class Test
>     {
>         public static void main(String[] args)
>         {
>     //        AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(Spring6Config.class);
>     //        OrderServiceImpl orderServiceImpl = context.getBean("orderServiceImpl", OrderServiceImpl.class);
>     //        orderServiceImpl.detail();
>     //        orderServiceImpl.generate();
>     //        orderServiceImpl.Modify();
>             //缺点1:虽然解决了OCP开闭原则,但是这种方法会导致耦合程度很高,继承关系是一种耦合度非常高的关系,不建议使用
>             //缺点2:代码没有得到复用
>             AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(Spring6Config.class);
>             OrderServiceImplSub orderServiceImpl = context.getBean("orderServiceImplSub", OrderServiceImplSub.class);
>             orderServiceImpl.detail();
>             orderServiceImpl.generate();
>             orderServiceImpl.Modify();
>         }
>     }
> 
>     package com.powernode.proxy.client;
>     
>     import com.powernode.proxy.Spring6Config;
>     import com.powernode.proxy.service.impl.OrderServiceImpl;
>     import com.powernode.proxy.service.impl.OrderServiceImplSub;
>     import org.springframework.context.annotation.AnnotationConfigApplicationContext;
>     
>     public class Test
>     {
>         public static void main(String[] args)
>         {
>     //        AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(Spring6Config.class);
>     //        OrderServiceImpl orderServiceImpl = context.getBean("orderServiceImpl", OrderServiceImpl.class);
>     //        orderServiceImpl.detail();
>     //        orderServiceImpl.generate();
>     //        orderServiceImpl.Modify();
>             //缺点1:虽然解决了OCP开闭原则,但是这种方法会导致耦合程度很高,继承关系是一种耦合度非常高的关系,不建议使用
>             //缺点2:代码没有得到复用
>             AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(Spring6Config.class);
>             OrderServiceImplSub orderServiceImpl = context.getBean("orderServiceImplSub", OrderServiceImplSub.class);
>             orderServiceImpl.detail();
>             orderServiceImpl.generate();
>             orderServiceImpl.Modify();
>         }
>     }

>     package com.powernode.proxy;
>     
>     import org.springframework.context.annotation.ComponentScan;
>     import org.springframework.context.annotation.Configuration;
>     
>     @ComponentScan
>     @Configuration
>     public class Spring6Config {
>     }
> 
>     package com.powernode.proxy;
>     
>     import org.springframework.context.annotation.ComponentScan;
>     import org.springframework.context.annotation.Configuration;
>     
>     @ComponentScan
>     @Configuration
>     public class Spring6Config {
>     }

>     package com.powernode.proxy.service;
>     
>     import org.springframework.stereotype.Service;
>     
>     @Service
>     public interface OrderService//订单业务接口
>     {
>         //生成订单
>         void generate();
>         //修改订单信息
>         void Modify();
>         //查看订单明细
>         void detail();
>     }
> 
>     package com.powernode.proxy.service;
>     
>     import org.springframework.stereotype.Service;
>     
>     @Service
>     public interface OrderService//订单业务接口
>     {
>         //生成订单
>         void generate();
>         //修改订单信息
>         void Modify();
>         //查看订单明细
>         void detail();
>     }

>     package com.powernode.proxy.service.impl;
>     
>     import com.powernode.proxy.service.OrderService;
>     import org.slf4j.Logger;
>     import org.slf4j.LoggerFactory;
>     import org.springframework.stereotype.Service;
>     
>     //缺点一:违背了OCP开闭原则,在运行良好的代码上进行了硬编码修改
>     //缺点二:代码没有得到复用,相同的代码写了很多遍
>     
>     @Service
>     public class OrderServiceImpl implements OrderService
>     {
>         private static final Logger logger = LoggerFactory.getLogger(OrderServiceImpl.class);
>     //    @Override
>     //    public void generate()
>     //    {
>     //        //修改了代码,违背了OCP开闭原则
>     //        long begin = System.currentTimeMillis();
>     //        //模拟网络延迟,模拟生成延迟
>     //        try {
>     //            Thread.sleep(1234);
>     //        } catch (InterruptedException e) {
>     //            e.printStackTrace();
>     //        }
>     //        logger.info("订单已生成");
>     //        long end = System.currentTimeMillis();
>     //        long time = end - begin;
>     //        logger.info("" + time);
>     //    }
>     //
>     //    @Override
>     //    public void Modify()
>     //    {
>     //        long begin = System.currentTimeMillis();
>     //        //模拟网络延迟,模拟生成延迟
>     //        try {
>     //            Thread.sleep(456);
>     //        } catch (InterruptedException e) {
>     //            e.printStackTrace();
>     //        }
>     //        logger.info("订单已修改");
>     //        long end = System.currentTimeMillis();
>     //        long time = end - begin;
>     //        logger.info("" + time);
>     //    }
>     //
>     //    @Override
>     //    public void detail()
>     //    {
>     //        long begin = System.currentTimeMillis();
>     //        //模拟网络延迟,模拟生成延迟
>     //        try {
>     //            Thread.sleep(111);
>     //        } catch (InterruptedException e) {
>     //            e.printStackTrace();
>     //        }
>     //        logger.info("订单详情如下");
>     //        long end = System.currentTimeMillis();
>     //        long time = end - begin;
>     //        logger.info("" + time);
>     //    }
>     @Override
>     public void generate()
>     {
>         //模拟网络延迟,模拟生成延迟
>         try {
>             Thread.sleep(1234);
>         } catch (InterruptedException e) {
>             e.printStackTrace();
>         }
>         logger.info("订单已生成");
>     }
>     
>         @Override
>         public void Modify()
>         {
>             //模拟网络延迟,模拟生成延迟
>             try {
>                 Thread.sleep(456);
>             } catch (InterruptedException e) {
>                 e.printStackTrace();
>             }
>             logger.info("订单已修改");
>         }
>     
>         @Override
>         public void detail()
>         {
>             //模拟网络延迟,模拟生成延迟
>             try {
>                 Thread.sleep(111);
>             } catch (InterruptedException e) {
>                 e.printStackTrace();
>             }
>             logger.info("订单详情如下");
>         }
>     }
> 
>     package com.powernode.proxy.service.impl;
>     
>     import com.powernode.proxy.service.OrderService;
>     import org.slf4j.Logger;
>     import org.slf4j.LoggerFactory;
>     import org.springframework.stereotype.Service;
>     
>     //缺点一:违背了OCP开闭原则,在运行良好的代码上进行了硬编码修改
>     //缺点二:代码没有得到复用,相同的代码写了很多遍
>     
>     @Service
>     public class OrderServiceImpl implements OrderService
>     {
>         private static final Logger logger = LoggerFactory.getLogger(OrderServiceImpl.class);
>     //    @Override
>     //    public void generate()
>     //    {
>     //        //修改了代码,违背了OCP开闭原则
>     //        long begin = System.currentTimeMillis();
>     //        //模拟网络延迟,模拟生成延迟
>     //        try {
>     //            Thread.sleep(1234);
>     //        } catch (InterruptedException e) {
>     //            e.printStackTrace();
>     //        }
>     //        logger.info("订单已生成");
>     //        long end = System.currentTimeMillis();
>     //        long time = end - begin;
>     //        logger.info("" + time);
>     //    }
>     //
>     //    @Override
>     //    public void Modify()
>     //    {
>     //        long begin = System.currentTimeMillis();
>     //        //模拟网络延迟,模拟生成延迟
>     //        try {
>     //            Thread.sleep(456);
>     //        } catch (InterruptedException e) {
>     //            e.printStackTrace();
>     //        }
>     //        logger.info("订单已修改");
>     //        long end = System.currentTimeMillis();
>     //        long time = end - begin;
>     //        logger.info("" + time);
>     //    }
>     //
>     //    @Override
>     //    public void detail()
>     //    {
>     //        long begin = System.currentTimeMillis();
>     //        //模拟网络延迟,模拟生成延迟
>     //        try {
>     //            Thread.sleep(111);
>     //        } catch (InterruptedException e) {
>     //            e.printStackTrace();
>     //        }
>     //        logger.info("订单详情如下");
>     //        long end = System.currentTimeMillis();
>     //        long time = end - begin;
>     //        logger.info("" + time);
>     //    }
>     @Override
>     public void generate()
>     {
>         //模拟网络延迟,模拟生成延迟
>         try {
>             Thread.sleep(1234);
>         } catch (InterruptedException e) {
>             e.printStackTrace();
>         }
>         logger.info("订单已生成");
>     }
>     
>         @Override
>         public void Modify()
>         {
>             //模拟网络延迟,模拟生成延迟
>             try {
>                 Thread.sleep(456);
>             } catch (InterruptedException e) {
>                 e.printStackTrace();
>             }
>             logger.info("订单已修改");
>         }
>     
>         @Override
>         public void detail()
>         {
>             //模拟网络延迟,模拟生成延迟
>             try {
>                 Thread.sleep(111);
>             } catch (InterruptedException e) {
>                 e.printStackTrace();
>             }
>             logger.info("订单详情如下");
>         }
>     }

>     package com.powernode.proxy.service.impl;
>     
>     import org.slf4j.Logger;
>     import org.slf4j.LoggerFactory;
>     import org.springframework.stereotype.Service;
>     
>     @Service
>     public class OrderServiceImplSub extends OrderServiceImpl
>     {
>         private static final Logger logger = LoggerFactory.getLogger(OrderServiceImplSub.class);
>         @Override
>         public void generate()
>         {
>             long begin = System.currentTimeMillis();
>             super.generate();
>             long end = System.currentTimeMillis();
>             long time = end - begin;
>             logger.info("耗时" + time);
>         }
>     
>         @Override
>         public void Modify()
>         {
>             long begin = System.currentTimeMillis();
>             super.Modify();
>             long end = System.currentTimeMillis();
>             long time = end - begin;
>             logger.info("耗时" + time);
>         }
>     
>         @Override
>         public void detail()
>         {
>             long begin = System.currentTimeMillis();
>             super.detail();
>             long end = System.currentTimeMillis();
>             long time = end - begin;
>             logger.info("耗时" + time);
>         }
>     }
> 
>     package com.powernode.proxy.service.impl;
>     
>     import org.slf4j.Logger;
>     import org.slf4j.LoggerFactory;
>     import org.springframework.stereotype.Service;
>     
>     @Service
>     public class OrderServiceImplSub extends OrderServiceImpl
>     {
>         private static final Logger logger = LoggerFactory.getLogger(OrderServiceImplSub.class);
>         @Override
>         public void generate()
>         {
>             long begin = System.currentTimeMillis();
>             super.generate();
>             long end = System.currentTimeMillis();
>             long time = end - begin;
>             logger.info("耗时" + time);
>         }
>     
>         @Override
>         public void Modify()
>         {
>             long begin = System.currentTimeMillis();
>             super.Modify();
>             long end = System.currentTimeMillis();
>             long time = end - begin;
>             logger.info("耗时" + time);
>         }
>     
>         @Override
>         public void detail()
>         {
>             long begin = System.currentTimeMillis();
>             super.detail();
>             long end = System.currentTimeMillis();
>             long time = end - begin;
>             logger.info("耗时" + time);
>         }
>     }