23种设计模式_MODE10桥接模式_手写代码实现
1.桥接模式测试
package com.zhaoshuangjian.mode10_桥接模式;
import com.zhaoshuangjian.mode10_桥接模式.mode10.database.Driver;
import com.zhaoshuangjian.mode10_桥接模式.mode10.database.DriverManager;
import com.zhaoshuangjian.mode10_桥接模式.mode10.database.MySqlDriver;
import com.zhaoshuangjian.mode10_桥接模式.mode10.database.OracleDriver;
import com.zhaoshuangjian.mode10_桥接模式.mode10.paint.color.Color;
import com.zhaoshuangjian.mode10_桥接模式.mode10.paint.color.Green;
import com.zhaoshuangjian.mode10_桥接模式.mode10.paint.color.Red;
import com.zhaoshuangjian.mode10_桥接模式.mode10.paint.color.White;
import com.zhaoshuangjian.mode10_桥接模式.mode10.paint.shape.Circle;
import com.zhaoshuangjian.mode10_桥接模式.mode10.paint.shape.Rectangle;
import com.zhaoshuangjian.mode10_桥接模式.mode10.paint.shape.Square;
/**
* 桥接模式测试
*
* @Author zhaoshuangjian 2023-03-25 下午20:39
*/
public class BridgeTest {
public static void main(String[] args) {
driverConnect();
drawShape();
/**
* 1、分离抽象接口及其实现部分。提高了比继承更好的解决方案
* 2、桥接模式提高了系统的可扩充性，在两个变化维度中任意扩展一个维度，都不需要修改原有系统
* 3、对客户隐藏实现细节
*/
}
/**
* 不同驱动连接数据库
*/
private static void driverConnect(){
DriverManager driverManager = new DriverManager();
String url = "jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf8&autoReconnect=true&rewriteBatchedStatements=true";
String user = "root";
String pwd = "root";
// mysql驱动连接数据库
Driver mySqlDriver = new MySqlDriver(url,user,pwd);
driverManager.setDriver(mySqlDriver);
driverManager.connect();
System.out.println("========= 分割线 =========");
// oracle驱动连接数据库
Driver oracleDriver = new OracleDriver();
driverManager.setDriver(oracleDriver);
driverManager.connect();
System.out.println("\n========= 分割线 =========\n");
}
/**
* 绘制不同颜色的形状
*/
private static void drawShape(){
//绘制红色的矩形
Color red = new Red();
Rectangle rectangle = new Rectangle();
rectangle.setColor(red);
rectangle.draw();
//绘制绿色的正方形
Color green = new Green();
Square square = new Square();
square.setColor(green);
square.draw();
//绘制白色的圆形
Color white = new White();
Circle circle = new Circle();
circle.setColor(white);
circle.draw();
}
}
2.各驱动之间的桥梁
package com.zhaoshuangjian.mode10_桥接模式.mode10.database;
/**
* 各驱动之间的桥梁
*
* @Author zhaoshuangjian 2023-03-25 下午20:39
*/
public abstract class AbstractBridge {
// 聚合和关联驱动接口实例
private Driver driver;
public Driver getDriver() {
return driver;
}
public void setDriver(Driver driver) {
this.driver = driver;
}
public abstract void connect();
}
3.数据库驱动接口
package com.zhaoshuangjian.mode10_桥接模式.mode10.database;
/**
* 数据库驱动接口
*
* @Author zhaoshuangjian 2023-03-25 下午20:39
*/
public interface Driver {
/**
* 连接
*/
void connect();
}
4.驱动管理器 == 实现不同驱动设备之间的数据库连接
package com.zhaoshuangjian.mode10_桥接模式.mode10.database;
/**
* 驱动管理器 == 实现不同驱动设备之间的数据库连接
*
* @Author zhaoshuangjian 2023-03-25 下午20:39
*/
public class DriverManager extends AbstractBridge {
@Override
public void connect() {
getDriver().connect();
}
}
5.MySql数据库驱动类
package com.zhaoshuangjian.mode10_桥接模式.mode10.database;
/**
* MySql数据库驱动类
*
* @Author zhaoshuangjian 2023-03-25 下午20:39
*/
public class MySqlDriver implements Driver {
private String url;
private String user;
private String pwd;
public MySqlDriver(String url, String user, String pwd){
this.url = url;
this.user = user;
this.pwd = pwd;
}
@Override
public void connect() {
System.out.println("url："+this.url);
System.out.println("user："+this.user);
System.out.println("pwd："+this.pwd);
System.out.println("mysql驱动连接数据库");
}
public String getUrl() {
return url;
}
public void setUrl(String url) {
this.url = url;
}
public String getUser() {
return user;
}
public void setUser(String user) {
this.user = user;
}
public String getPwd() {
return pwd;
}
public void setPwd(String pwd) {
this.pwd = pwd;
}
}
6.Oracle数据库驱动类
package com.zhaoshuangjian.mode10_桥接模式.mode10.database;
/**
* Oracle数据库驱动类
*
* @Author zhaoshuangjian 2023-03-25 下午20:39
*/
public class OracleDriver implements Driver {
@Override
public void connect() {
System.out.println("oracle驱动连接数据库");
}
}
7.PostGreSql数据库驱动类
package com.zhaoshuangjian.mode10_桥接模式.mode10.database;
/**
* PostGreSql数据库驱动类
*
* @Author zhaoshuangjian 2023-03-25 下午20:39
*/
public class PostgreSqlDriver implements Driver {
@Override
public void connect() {
System.out.println("postgresql驱动连接数据库");
}
}
8.颜色接口
package com.zhaoshuangjian.mode10_桥接模式.mode10.paint.color;
/**
* 颜色接口
*
* @Author zhaoshuangjian 2023-03-25 下午20:39
*/
public interface Color {
void painting(String shape);
}
9.绿色
package com.zhaoshuangjian.mode10_桥接模式.mode10.paint.color;
/**
* 绿色
*
* @Author zhaoshuangjian 2023-03-25 下午20:39
*/
public class Green implements Color{
@Override
public void painting(String shape) {
System.out.println("绘制绿色的"+shape);
}
}
10.红色
package com.zhaoshuangjian.mode10_桥接模式.mode10.paint.color;
/**
* 红色
*
* @Author zhaoshuangjian 2023-03-25 下午20:39
*/
public class Red implements Color{
@Override
public void painting(String shape) {
System.out.println("绘制红色的"+shape);
}
}
11.白色
package com.zhaoshuangjian.mode10_桥接模式.mode10.paint.color;
/**
* 白色
*
* @Author zhaoshuangjian 2023-03-25 下午20:39
*/
public class White implements Color{
@Override
public void painting(String shape) {
System.out.println("绘制白色的"+shape);
}
}
12.抽象形状类 – 聚合与关联Color实现类
package com.zhaoshuangjian.mode10_桥接模式.mode10.paint.shape;
import com.zhaoshuangjian.mode10_桥接模式.mode10.paint.color.Color;
/**
* 抽象形状类 -- 聚合与关联Color实现类
*
* @Author zhaoshuangjian 2023-03-25 下午20:39
*/
public abstract class AbstractShape {
private Color color;
public Color getColor() {
return color;
}
public void setColor(Color color) {
this.color = color;
}
/**
* 抽象方法 == 绘制图案
*/
abstract void draw();
}
13.圆形
package com.zhaoshuangjian.mode10_桥接模式.mode10.paint.shape;
/**
* 圆形
*
* @Author zhaoshuangjian 2023-03-25 下午20:39
*/
public class Circle extends AbstractShape {
@Override
public void draw() {
getColor().painting("圆形");
}
}
14.矩形、长方形
package com.zhaoshuangjian.mode10_桥接模式.mode10.paint.shape;
/**
* 矩形、长方形
*
* @Author zhaoshuangjian 2023-03-25 下午20:39
*/
public class Rectangle extends AbstractShape {
@Override
public void draw() {
getColor().painting("矩形");
}
}
15.正方形
package com.zhaoshuangjian.mode10_桥接模式.mode10.paint.shape;
/**
* 正方形
*
* @Author zhaoshuangjian 2023-03-25 下午20:39
*/
public class Square extends AbstractShape {
@Override
public void draw() {
getColor().painting("正方形");
}
}