package com.build;
/**
* 建造胖子
* @author 黄二狗
*
*/
public class PersonFatBuilder {
public PersonFatBuilder()
{
}
public void build()
{
System.out.println("大头");
System.out.println("大腿");
System.out.println("粗腰");
}
}
package com.build;
/**
* 建造瘦人
* @author 黄二狗
*
*/
public class PersonThinBuilder {
public PersonThinBuilder()
{
}
public void build()
{
System.out.println("小头");
System.out.println("小腿");
System.out.println("细腰");
}
}
package com.build;
public class Client {
//出场
public static void main(String[] args) {
//建造胖子
PersonFatBuilder fatBuild=new PersonFatBuilder();
//建造瘦子
PersonThinBuilder thinBuild=new PersonThinBuilder();
fatBuild.build();
System.out.println("=========");
thinBuild.build();
}
}
上面代码的缺点是流程不够规范 在一个build方法里面还是有可能出错。
package com.build;
public interface PersonBuilder {
public abstract void buildHead();
public abstract void buildBody();
public abstract void buildArmLeft();
public abstract void buildArmRight();
public abstract void buildLegLeft();
public abstract void buildLegRight();
}
package com.build;
/**
* 建造胖子
* @author 黄二狗
*
*/
public class PersonFatBuilder implements PersonBuilder{
public PersonFatBuilder()
{
}
@Override
public void buildHead() {
System.out.println("大头");
}
@Override
public void buildBody() {
System.out.println("大身体");
}
@Override
public void buildArmLeft() {
System.out.println("左大胳膊");
}
@Override
public void buildArmRight() {
System.out.println("右大胳膊");
}
@Override
public void buildLegLeft() {
System.out.println("左大腿");
}
@Override
public void buildLegRight() {
System.out.println("右大腿");
}
}
package com.build;
/**
* 建造瘦人
* @author 黄二狗
*
*/
public class PersonThinBuilder implements PersonBuilder{
public PersonThinBuilder()
{
}
@Override
public void buildHead() {
System.out.println("小头");
}
@Override
public void buildBody() {
System.out.println("小身体");
}
@Override
public void buildArmLeft() {
System.out.println("左小胳膊");
}
@Override
public void buildArmRight() {
System.out.println("右小胳膊");
}
@Override
public void buildLegLeft() {
System.out.println("左小腿");
}
@Override
public void buildLegRight() {
System.out.println("右小腿");
}
}
package com.build;
/**
* 建造指导者 如果没有该类 用户需要知道怎么建出来的 但是用户根本就不想知道这些
* @author 黄二狗
*
*/
public class PersonDirector {
private PersonBuilder pb;
public PersonDirector(PersonBuilder pb)
{
this.pb=pb;
}
//流程规范
public void createPerson()
{
pb.buildHead();
pb.buildBody();
pb.buildArmLeft();
pb.buildArmRight();
pb.buildLegLeft();
pb.buildLegRight();
}
}
package com.build;
public class Client {
//出场
public static void main(String[] args) {
PersonFatBuilder pfb=new PersonFatBuilder();
PersonDirector pdThin=new PersonDirector(pfb);
package com.build2;
import java.util.ArrayList;
import java.util.List;
//产品 由多个部件组成
public class Product {
List<String> parts=new ArrayList<String>();
public void add(String part)
{
parts.add(part);
}
public void show()
{
System.out.println("产品创建====");
for(String part:parts)
{
System.out.println(part);
}
}
}
package com.build2;
public interface Builder {
//假设产品由两个部件组成
void buildPartA();
void buildPartB();
Product getResult();
}
package com.build2;
public class ConcreteBuilder1 implements Builder{
private Product product=new Product();
@Override
public void buildPartA() {
product.add("部件A");
}
@Override
public void buildPartB() {
product.add("部件B");
}
@Override
public Product getResult() {
return product;
}
}
package com.build2;
public class ConcreteBuilder2 implements Builder{
private Product product=new Product();
@Override
public void buildPartA() {
product.add("部件X");
}
@Override
public void buildPartB() {
product.add("部件Y");
}
@Override
public Product getResult() {
return product;
}
}
package com.build2;
public class Director {
public void construct(Builder builder)
{
builder.buildPartA();
builder.buildPartB();
}
}
package com.build2;
public class Client {
public static void main(String[] args) {
Director director=new Director();
Builder builder=new ConcreteBuilder1();
director.construct(builder);
Product product=builder.getResult();
product.show();
}
}
pdThin.createPerson();
System.out.println("===========");
PersonThinBuilder ptb=new PersonThinBuilder();
PersonDirector pdFat=new PersonDirector(ptb);
pdFat.createPerson();
}
}
package com.build2;
import java.util.ArrayList;
import java.util.List;
//产品 由多个部件组成
public class Product {
List<String> parts=new ArrayList<String>();
public void add(String part)
{
parts.add(part);
}
public void show()
{
System.out.println("产品创建====");
for(String part:parts)
{
System.out.println(part);
}
}
}
package com.build2;
public interface Builder {
//假设产品由两个部件组成
void buildPartA();
void buildPartB();
Product getResult();
}
package com.build2;
public class ConcreteBuilder1 implements Builder{
private Product product=new Product();
@Override
public void buildPartA() {
product.add("部件A");
}
@Override
public void buildPartB() {
product.add("部件B");
}
@Override
public Product getResult() {
return product;
}
}
package com.build2;
public class ConcreteBuilder2 implements Builder{
private Product product=new Product();
@Override
public void buildPartA() {
product.add("部件X");
}
@Override
public void buildPartB() {
product.add("部件Y");
}
@Override
public Product getResult() {
return product;
}
}
package com.build2;
public class Director {
public void construct(Builder builder)
{
builder.buildPartA();
builder.buildPartB();
}
}
package com.build2;
public class Client {
public static void main(String[] args) {
Director director=new Director();
Builder builder=new ConcreteBuilder1();
director.construct(builder);
Product product=builder.getResult();
product.show();
}
}
时间： 2024-10-05 04:55:04