总体设计

包com.xzit.aop

 

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• Dynlnvoke
• ProducerProxy

包com.xzit.db

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• db

包com.xzit.entity

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• Client
• Department
• Employee
• Goods
• Producer

包com.xzit.interfaces

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• DepartmentDaoImp
• EmployeeDaoImp
• IGoods
• IObject

包com.xzit.proxy

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• TeatDynProxy
• TestStaticProxy

咱直接上代码，附一张图，如果看到这里，我希望你看完，我是歌谣，期待一起共同进步

工具：IDEA

package：aop

Dynlnvoke类

package com.xzit.aop;import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;public class DynInvoke implements InvocationHandler {private Object target; // 被代理的对象/*** 重写实现动态代理的invoke方法*/public Object invoke(Object arg0, Method arg1, Object[] arg2)throws Throwable {System.out.println("动态代理方法");Object obj = arg1.invoke(target, arg2);return obj;}public void setTarget(Object target) {this.target = target;}}

ProducerProxy类

package com.xzit.aop;import java.util.List;import com.xzit.entity.Client;
import com.xzit.entity.Goods;
import com.xzit.entity.Producer;
import com.xzit.interfaces.IGoods;public class ProducerProxy implements IGoods {private Producer producer; // 被代理对象private Client client;// 购买对象public List<Goods> produerGoodsList() {boolean bool = validateIsVip();if(bool){List<Goods> goodsList = producer.produerGoodsList();for(Goods g:goodsList){g.setPrice(g.getPrice()*0.85);}return goodsList;}return producer.produerGoodsList();}public void setProducer(Producer producer) {this.producer = producer;}public void setClient(Client client) {this.client = client;}private boolean validateIsVip(){if(client.isVip())return true;return false;} }

package：db

db类

package com.xzit.db;import java.util.ArrayList;
import java.util.List;import com.xzit.entity.Department;
import com.xzit.entity.Employee;
import com.xzit.entity.Goods;public class DataBase {public static final List<Department> DEPLIST = new ArrayList<Department>();public static final List<Employee> EMPLIST = new ArrayList<Employee>();public static final List<Goods> GOODSLIST = new ArrayList<Goods>();static{DEPLIST.add(new Department("dep100","事业部"));DEPLIST.add(new Department("dep200","策划部"));DEPLIST.add(new Department("dep300","市场部"));DEPLIST.add(new Department("dep400","人事部"));DEPLIST.add(new Department("dep500","研发部"));DEPLIST.add(new Department("dep600","测试部"));EMPLIST.add(new Employee("任我行","男","黑木崖"));EMPLIST.add(new Employee("任盈盈","女","黑木崖"));EMPLIST.add(new Employee("令狐冲","男","华山"));EMPLIST.add(new Employee("岳不群","男","华山"));EMPLIST.add(new Employee("丁春秋","男","南海"));GOODSLIST.add(new Goods("goods100","加热器",123.50));GOODSLIST.add(new Goods("goods200","胜利羽毛球lark4",54.00));GOODSLIST.add(new Goods("goods300","联想笔记本T450",8900.50));GOODSLIST.add(new Goods("goods400","小米麦克风",99.50));}
}

package：entity

Client类

package com.xzit.entity;/*** 客户实体类* @author Administrator**/
public class Client {private String name; // 客户姓名private boolean isVip; // 是否是VIP客户public String getName() {return name;}public void setName(String name) {this.name = name;}public boolean isVip() {return isVip;}public void setVip(boolean isVip) {this.isVip = isVip;}
}

Department类

package com.xzit.entity;
/*** 部门信息实体类* @author Administrator**/
public class Department {private String number;// 部门编号private String name;// 部门名称public String getNumber() {return number;}public void setNumber(String number) {this.number = number;}public String getName() {return name;}public void setName(String name) {this.name = name;}public Department() {}public Department(String number, String name) {this.number = number;this.name = name;}
}

Emploee类

package com.xzit.entity;
/*** 员工实体类* @author Administrator**/
public class Employee {private String name;private String sex;private String address;public String getName() {return name;}public void setName(String name) {this.name = name;}public String getSex() {return sex;}public void setSex(String sex) {this.sex = sex;}public String getAddress() {return address;}public void setAddress(String address) {this.address = address;}/*** 无参构造器*/public Employee() {}/*** 有参构造器* @param name* @param sex* @param address*/public Employee(String name, String sex, String address) {this.name = name;this.sex = sex;this.address = address;}
}

Goods类

package com.xzit.entity;
/*** 商品实体类* @author Administrator**/
public class Goods {private String number;// 商品编号private String name;// 商品名称private Double price; // 商品单价public String getNumber() {return number;}public void setNumber(String number) {this.number = number;}public String getName() {return name;}public void setName(String name) {this.name = name;}public Double getPrice() {return price;}public void setPrice(Double price) {this.price = price;}public Goods() {}public Goods(String number, String name, Double price) {this.number = number;this.name = name;this.price = price;}
}

Producer类

package com.xzit.entity;import java.util.List;import com.xzit.db.db.DataBase;
import com.xzit.interfaces.IGoods;
/*** 生产商* @author Administrator**/
public class Producer implements IGoods {public List<Goods> produerGoodsList() {return DataBase.GOODSLIST;}}

package：interfaces

DepartmentDaoImp类

package com.xzit.interfaces;import java.util.List;import com.xzit.db.db.DataBase;public class DepartmentDaoImp<T> implements IObject<T> {public List<T> findList() {System.out.println("获取部门列表");return (List<T>) DataBase.DEPLIST;}}

EmployeeDaoImp类

package com.xzit.interfaces;import java.util.List;import com.xzit.db.db.DataBase;public class EmployeeDaoImp<T> implements IObject<T> {public List<T> findList() {System.out.println("获取员工列表");return (List<T>) DataBase.EMPLIST;}}

IGoods

package com.xzit.interfaces;import java.util.List;import com.xzit.entity.Goods;/*** 提供产品列表的接口* 代理实现者和被代理对象都应该实现此接口* @author Administrator**/
public interface IGoods {/*** 提供产品的方法* @return*/List<Goods> produerGoodsList();
}

IObject

package com.xzit.interfaces;import java.util.List;public interface IObject<T> {/*** 查找目标数据列表* @return*/List<T> findList();
}

package：proxy

TeatDynProxy

package com.xzit.proxy;import java.lang.reflect.Proxy;
import java.util.List;import com.xzit.aop.DynInvoke;
import com.xzit.entity.Department;
import com.xzit.entity.Employee;
import com.xzit.interfaces.DepartmentDaoImp;
import com.xzit.interfaces.EmployeeDaoImp;
import com.xzit.interfaces.IObject;public class TestDynProxy {/*** 动态代理测试* @param args*/public static void main(String[] args) {DynInvoke dynInovke = new DynInvoke();// 创建动态代理对象DepartmentDaoImp<Department> depDao = new DepartmentDaoImp<Department>();// 创建被代理的目标对象EmployeeDaoImp<Employee> empDao = new EmployeeDaoImp<Employee>();//dynInovke.setTarget(depDao);// 设置被代理对象dynInovke.setTarget(empDao);// 设置被代理对象Class [] classes = depDao.getClass().getInterfaces();// 获取所有被代理对象的父接口数组IObject iObject = (IObject)Proxy.newProxyInstance(empDao.getClass().getClassLoader(), classes,dynInovke);// 获取代理类实例List<Employee> depList = iObject.findList();// 调用目标方法for(Employee dep:depList){System.out.println(dep.getName());}}}

TestStaticProxy

package com.xzit.proxy;import java.util.List;
import java.util.Scanner;import com.xzit.aop.ProducerProxy;
import com.xzit.entity.Client;
import com.xzit.entity.Goods;
import com.xzit.entity.Producer;public class TestStaticProxy {public static void main(String[] args) {Scanner in = new Scanner(System.in);ProducerProxy proxy = new ProducerProxy();// 代理实现者proxy.setProducer(new Producer());System.out.println("输入客户姓名");String name = in.next();System.out.println("您是VIP请输入1，否则输入 0");int isVip = in.nextInt();boolean bool = isVip == 1?true:false;Client c = new Client();c.setName(name);c.setVip(bool);proxy.setClient(c);List<Goods> goodsList = proxy.produerGoodsList();// 调用代理实现方法for(Goods g:goodsList){System.out.println(g.getName()+"\t"+g.getNumber()+"\t"+g.getPrice());}}}

运行结果

动态代理方法

动态代理方法
获取员工列表
任我行
任盈盈
令狐冲
岳不群
丁春秋

静态代理方法

输入客户姓名
歌谣
您是VIP请输入1，否则输入 0
1
加热器	goods100	104.975
胜利羽毛球lark4	goods200	45.9
联想笔记本T450	goods300	7565.425
小米麦克风	goods400	84.575

本人来博客已经两月有余，期待与大家共同进步。分享技术，分享快乐。我是歌谣，感谢关注。

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