package com.design.o.builder;
/*** 人体构造*/
public class Human {private String userName;private String head; //头private String body; //身体private String hand; //手private String foot; //脚public Human(String userName) {super();this.userName = userName;}public String getUserName() {return userName;}public void setUserName(String userName) {this.userName = userName;}public String getHead() {return head;}public void setHead(String head) {this.head = head;}public String getBody() {return body;}public void setBody(String body) {this.body = body;}public String getHand() {return hand;}public void setHand(String hand) {this.hand = hand;}public String getFoot() {return foot;}public void setFoot(String foot) {this.foot = foot;}@Overridepublic String toString() {return userName;}}

package com.design.o.builder;
/*** 建造者接口*/
public interface BuilderService {void createHuman(String userName);Human getHuman();void createHead();void createBody();void createHand();void createFoot();}

package com.design.o.builder;public abstract class BuilderServiceImpl implements BuilderService {private Human human;protected String bodyType;@Overridepublic void createHuman(String userName) {human = new Human(userName);}@Overridepublic Human getHuman() {try{return human;}finally{human = null;}}@Overridepublic void createHead() {printInfo("head");human.setHand(bodyType + "head");}@Overridepublic void createBody() {printInfo("body");human.setBody(bodyType + "body");}@Overridepublic void createHand() {printInfo("hand");human.setHand(bodyType + "hand");}@Overridepublic void createFoot() {printInfo("foot");human.setFoot(bodyType + "foot");}private void printInfo(String info){System.out.println("创建  - "+bodyType+"- 用户: " + human.getUserName() + " 的" + info);}
}

package com.design.o.builder;
/*** 偏胖型 - 用户创建 */
public class FatBuilderServiceImpl extends BuilderServiceImpl {private static final String BODY_TYPE = "偏胖型";public FatBuilderServiceImpl() {super.bodyType = BODY_TYPE;}}

package com.design.o.builder;
/*** 偏瘦型 - 用户创建 */
public class ThinBuilderServiceImpl extends BuilderServiceImpl {private static final String BODY_TYPE = "偏瘦型";public ThinBuilderServiceImpl(){super.bodyType = BODY_TYPE;}}

package com.design.o.builder;
/*** 建造者模式*/
public class CreateHuman {public Human createHuman(BuilderService builderService, String userName){builderService.createHuman(userName);builderService.createHead();builderService.createBody();builderService.createHand();builderService.createFoot();return builderService.getHuman();}
}

package com.design.o.builder;
/*** 建造者模式* * 目的: 使得对象的构建与表示分离        CreateHuman和BuilderServiceImpl分离*/
public class MainTest {public static void main(String[] args) {CreateHuman human = new CreateHuman();System.out.println(human.createHuman(new FatBuilderServiceImpl(), "小胖子"));;System.out.println(human.createHuman(new ThinBuilderServiceImpl(), "小瘦子"));;}}

创建  - 偏胖型- 用户: 小胖子 的head
创建  - 偏胖型- 用户: 小胖子 的body
创建  - 偏胖型- 用户: 小胖子 的hand
创建  - 偏胖型- 用户: 小胖子 的foot
小胖子
创建  - 偏瘦型- 用户: 小瘦子 的head
创建  - 偏瘦型- 用户: 小瘦子 的body
创建  - 偏瘦型- 用户: 小瘦子 的hand
创建  - 偏瘦型- 用户: 小瘦子 的foot
小瘦子