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:new:新增 Java 设计模式 · testitok/JavaSecurityLearning@17cfb0c · GitHub

:new:新增 Java 设计模式 · testitok/JavaSecurityLearning@17cfb0c · GitHub
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  1. testitok
  2. JavaSecurityLearning

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Commit 17cfb0c

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Drun1baby
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🆕新增 Java 设计模式
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‎JavaSecurity/Java 设计模式/Java-Design-Mode/Design-Principle/Design-Principle.iml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<module type="JAVA_MODULE" version="4">
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<component name="NewModuleRootManager" inherit-compiler-output="true">
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<exclude-output />
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<content url="file://$MODULE_DIR$">
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<sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
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</content>
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<orderEntry type="jdk" jdkName="corretto-1.8" jdkType="JavaSDK" />
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<orderEntry type="sourceFolder" forTests="false" />
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</component>
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</module>

‎JavaSecurity/Java 设计模式/Java-Design-Mode/Design-Principle/src/DependencyInversion/DependencyInversion1.java‎

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package DependencyInversion;
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public class DependencyInversion1 {
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public static void main(String[] args) {
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Person person = new Person();
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person.receive(new Email());
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}
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}
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class Email {
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public String getInfo() {
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return "电子邮件：Hello World!!!";
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}
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}
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class Person {
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public void receive(Email e) {
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System.out.println(e.getInfo());
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}
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}

‎JavaSecurity/Java 设计模式/Java-Design-Mode/Design-Principle/src/DependencyInversion/DependencyInversion2.java‎

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package DependencyInversion;
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/**
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* 如果我们获取的对象是微信、短信等等，则新增类，同时 Person 也要增加相应的接收方法
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* 解决思路：引入一个抽象的接口 IReceiver，表示接收者，这样 Person 类与接口 IReceiver 发生依赖
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* 因为 Email、WeChat 等等属于接收的范围，它们各自实现 IReceiver 接口就可以，这样我们就符合依赖倒转原则
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*/
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public class DependencyInversion2 {
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public static void main(String[] args) {
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Person2 Person2 = new Person2();
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Person2.receive(new Email2());
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Person2.receive(new WeChat());
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}
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}
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interface IReceiver {
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public String getInfo();
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}
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class Email2 implements IReceiver {
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@Override
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public String getInfo() {
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return "电子邮件：Hello World!";
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}
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}
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class WeChat implements IReceiver {
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@Override
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public String getInfo() {
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return "微信消息：Hello weixin";
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}
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}
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class Person2 {
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public void receive(IReceiver i) {
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System.out.println(i.getInfo());
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}
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}

‎JavaSecurity/Java 设计模式/Java-Design-Mode/Design-Principle/src/Dimit/Demeter1.java‎

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package Dimit;
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import java.util.ArrayList;
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import java.util.List;
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public class Demeter1 {
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public static void main(String[] args) {
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SchoolManager schoolManager = new SchoolManager();
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schoolManager.printAllEmployee(new CollegeManager());
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}
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}
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//学校总部员工
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class Employee {
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private String id;
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public String getId() {
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return id;
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}
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public void setId(String id) {
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this.id = id;
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}
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}
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//学院员工
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class CollegeEmployee {
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private String id;
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public String getId() {
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return id;
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}
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public void setId(String id) {
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this.id = id;
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}
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}
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//管理学院员工的类
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class CollegeManager {
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//返回学院的所有员工
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public List<CollegeEmployee> getAllEmployee() {
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List<CollegeEmployee> list = new ArrayList<CollegeEmployee>();
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for (int i = 0; i < 10; i++) {//增加了10个员工
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CollegeEmployee emp = new CollegeEmployee();
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emp.setId("学院员工id=" + i);
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list.add(emp);
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}
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return list;
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}
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//获取学院员工
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public void printEmployee() {
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List<CollegeEmployee> list1 = this.getAllEmployee();
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System.out.println("------------学院员工------------");
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for (CollegeEmployee e : list1) {
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System.out.println(e.getId());
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}
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}
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}
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/**
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* 管理学校员工的类
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* 分析：SchoolManager类的直接朋友有哪些？
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* 直接朋友有“Employee”、“CollegeManager”
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* 非直接朋友有“CollegeEmployee”
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* 这就违背了迪米特法则
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*/
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class SchoolManager {
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//返回学校总部的员工
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public List<Employee> getAllEmployee() {
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List<Employee> list = new ArrayList<Employee>();
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for (int i = 0; i < 5; i++) { //增加了5个员工
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Employee emp = new Employee();
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emp.setId("学校总部员工id= " + i);
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list.add(emp);
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}
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return list;
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}
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//完成输出学校总部和学院员工信息的方法
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void printAllEmployee(CollegeManager sub) {
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//获取学院员工
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sub.printEmployee();
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//获取学校总部员工
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List<Employee> list2 = this.getAllEmployee();
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System.out.println("------------学校总部员工------------");
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for (Employee e : list2) {
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System.out.println(e.getId());
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}
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}
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}

‎JavaSecurity/Java 设计模式/Java-Design-Mode/Design-Principle/src/Dimit/Demeter2.java‎

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package Dimit;
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import java.util.ArrayList;
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import java.util.List;
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public class Demeter2 {
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public static void main(String[] args) {
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SchoolManager2 schoolManager2 = new SchoolManager2();
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schoolManager2.printAllEmployee2(new CollegeManager2());
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}
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}
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//学校总部员工
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class Employee2 {
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private String id;
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public String getId() {
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return id;
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}
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public void setId(String id) {
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this.id = id;
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}
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}
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//学院员工
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class CollegeEmployee2 {
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private String id;
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public String getId() {
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return id;
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}
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public void setId(String id) {
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this.id = id;
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}
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}
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//管理学院员工的类
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class CollegeManager2 {
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//返回学院的所有员工
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public List<CollegeEmployee2> getAllEmployee2() {
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List<CollegeEmployee2> list = new ArrayList<CollegeEmployee2>();
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for (int i = 0; i < 10; i++) {//增加了10个员工
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CollegeEmployee2 emp = new CollegeEmployee2();
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emp.setId("学院员工id=" + i);
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list.add(emp);
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}
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return list;
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}
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//获取学院员工
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public void printEmployee2() {
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List<CollegeEmployee2> list1 = this.getAllEmployee2();
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System.out.println("------------学院员工------------");
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for (CollegeEmployee2 e : list1) {
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System.out.println(e.getId());
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}
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}
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}
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/**
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* 管理学校员工的类
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* 分析：SchoolManager2类的直接朋友有哪些？
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* 直接朋友有“Employee2”、“CollegeManager2”
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* 非直接朋友有“CollegeEmployee2”
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* 这就违背了迪米特法则
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*/
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class SchoolManager2 {
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//返回学校总部的员工
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public List<Employee2> getAllEmployee2() {
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List<Employee2> list = new ArrayList<Employee2>();
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for (int i = 0; i < 5; i++) { //增加了5个员工
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Employee2 emp = new Employee2();
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emp.setId("学校总部员工id= " + i);
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list.add(emp);
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}
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return list;
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}
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//完成输出学校总部和学院员工信息的方法
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void printAllEmployee2(CollegeManager2 sub) {
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//获取学院员工
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sub.printEmployee2();
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//获取学校总部员工
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List<Employee2> list2 = this.getAllEmployee2();
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System.out.println("------------学校总部员工------------");
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for (Employee2 e : list2) {
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System.out.println(e.getId());
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}
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}
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}

‎JavaSecurity/Java 设计模式/Java-Design-Mode/Design-Principle/src/InterfaceSegregation/Segregation1.java‎

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package InterfaceSegregation;
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// 不遵循接口隔离原则，会导致每个类都要实现接口中的所有方法
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public class Segregation1 {
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}
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//接口
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interface Interface1 {
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void operation1();
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void operation2();
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void operation3();
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void operation4();
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void operation5();
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}
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class B implements Interface1 {
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@Override
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public void operation1() {
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System.out.println("B实现了operation1");
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}
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@Override
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public void operation2() {
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System.out.println("B实现了operation2");
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}
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@Override
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public void operation3() {
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System.out.println("B实现了operation3");
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}
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@Override
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public void operation4() {
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System.out.println("B实现了operation4");
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}
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@Override
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public void operation5() {
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System.out.println("B实现了operation5");
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}
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}
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class D implements Interface1 {
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@Override
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public void operation1() {
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System.out.println("D实现了operation1");
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}
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@Override
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public void operation2() {
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System.out.println("D实现了operation2");
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}
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@Override
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public void operation3() {
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System.out.println("D实现了operation3");
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}
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@Override
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public void operation4() {
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System.out.println("D实现了operation4");
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}
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@Override
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public void operation5() {
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System.out.println("D实现了operation5");
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}
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}
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class A {
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public void depend1(Interface1 i) {
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i.operation1();
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}
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public void depend2(Interface1 i) {
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i.operation2();
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}
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public void depend3(Interface1 i) {
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i.operation3();
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}
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}
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class C {
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public void depend1(Interface1 i) {
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i.operation1();
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}
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public void depend4(Interface1 i) {
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i.operation4();
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}
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public void depend5(Interface1 i) {
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i.operation5();
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}
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}

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