總體設計

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

咱直接上代碼，附一張圖，如果看到這里，我希望你看完，我是歌謠，期待一起共同進步

工具：IDEA

package：aop

Dynlnvoke類

package com.xzit.aop;import java.lang.reflect.InvocationHandler; import java.lang.reflect.Method;public class DynInvoke implements InvocationHandler {private Object target; // 被代理的對象/*** 重寫實現動態代理的invoke方法*/public Object invoke(Object arg0, Method arg1, Object[] arg2)throws Throwable {System.out.println("動態代理方法");Object obj = arg1.invoke(target, arg2);return obj;}public void setTarget(Object target) {this.target = target;}}

ProducerProxy類

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; // 被代理對象private Client client;// 購買對象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類

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","事業部"));DEPLIST.add(new Department("dep200","策劃部"));DEPLIST.add(new Department("dep300","市場部"));DEPLIST.add(new Department("dep400","人事部"));DEPLIST.add(new Department("dep500","研發部"));DEPLIST.add(new Department("dep600","測試部"));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("令狐沖","男","華山"));EMPLIST.add(new Employee("岳不群","男","華山"));EMPLIST.add(new Employee("丁春秋","男","南海"));GOODSLIST.add(new Goods("goods100","加熱器",123.50));GOODSLIST.add(new Goods("goods200","勝利羽毛球lark4",54.00));GOODSLIST.add(new Goods("goods300","聯想筆記本T450",8900.50));GOODSLIST.add(new Goods("goods400","小米麥克風",99.50));} }

package：entity

Client類

package com.xzit.entity;/*** 客戶實體類* @author Administrator**/ public class Client {private String name; // 客戶姓名private boolean isVip; // 是否是VIP客戶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類

package com.xzit.entity; /*** 部門信息實體類* @author Administrator**/ public class Department {private String number;// 部門編號private String name;// 部門名稱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類

package com.xzit.entity; /*** 員工實體類* @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;}/*** 無參構造器*/public Employee() {}/*** 有參構造器* @param name* @param sex* @param address*/public Employee(String name, String sex, String address) {this.name = name;this.sex = sex;this.address = address;} }

Goods類

package com.xzit.entity; /*** 商品實體類* @author Administrator**/ public class Goods {private String number;// 商品編號private String name;// 商品名稱private Double price; // 商品單價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類

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

package：interfaces

DepartmentDaoImp類

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("獲取部門列表");return (List<T>) DataBase.DEPLIST;}}

EmployeeDaoImp類

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("獲取員工列表");return (List<T>) DataBase.EMPLIST;}}

IGoods

package com.xzit.interfaces;import java.util.List;import com.xzit.entity.Goods;/*** 提供產品列表的接口* 代理實現者和被代理對象都應該實現此接口* @author Administrator**/ public interface IGoods {/*** 提供產品的方法* @return*/List<Goods> produerGoodsList(); }

IObject

package com.xzit.interfaces;import java.util.List;public interface IObject<T> {/*** 查找目標數據列表* @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 {/*** 動態代理測試* @param args*/public static void main(String[] args) {DynInvoke dynInovke = new DynInvoke();// 創建動態代理對象DepartmentDaoImp<Department> depDao = new DepartmentDaoImp<Department>();// 創建被代理的目標對象EmployeeDaoImp<Employee> empDao = new EmployeeDaoImp<Employee>();//dynInovke.setTarget(depDao);// 設置被代理對象dynInovke.setTarget(empDao);// 設置被代理對象Class [] classes = depDao.getClass().getInterfaces();// 獲取所有被代理對象的父接口數組IObject iObject = (IObject)Proxy.newProxyInstance(empDao.getClass().getClassLoader(), classes,dynInovke);// 獲取代理類實例List<Employee> depList = iObject.findList();// 調用目標方法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();// 代理實現者proxy.setProducer(new Producer());System.out.println("輸入客戶姓名");String name = in.next();System.out.println("您是VIP請輸入1，否則輸入 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();// 調用代理實現方法for(Goods g:goodsList){System.out.println(g.getName()+"\t"+g.getNumber()+"\t"+g.getPrice());}}}

運行結果

動態代理方法

動態代理方法 獲取員工列表 任我行 任盈盈 令狐沖 岳不群 丁春秋

靜態代理方法

輸入客戶姓名 歌謠 您是VIP請輸入1，否則輸入 0 1 加熱器 goods100 104.975 勝利羽毛球lark4 goods200 45.9 聯想筆記本T450 goods300 7565.425 小米麥克風 goods400 84.575

本人來博客已經兩月有余，期待與大家共同進步。分享技術，分享快樂。我是歌謠，感謝關注。

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