PHP设计模式---建造模式(Builder Pattern)

2019-05-22 16:59:51 Albin Wong 1589

### 优缺点：
优点：建造模式可以让一个产品的内部表现和产品的生产过程分离，从而可以生成具有不同内部表象的产品
缺点：建造者的接口修改会倒是所有执行类的修改

### 适用性：需要生成的产品对象有负责的内部接口
需要成产品对象得属性相互依赖，建造这模式可以强迫生成顺序在对象创建过程中使用到系统中的一些其他对象，这些对象在产品对象得创建过程中不易得到
其主要是为了消除其他对象复杂的创建过程

### 代码示例🌰
```php
class UserInfo
{ 
 
    protected $userName = ''; 
    protected $userAge = ''; 
    protected $userMoney = ''; 
 
    public function setUserName($userName) { 
        $this->userName = $userName; 
    }    
     
    public function setUserAge($userAge) { 
        $this->userAge = $userAge; 
    }    
     
    public function setUserMoney($userMoney) { 
        $this->userMoney = $userMoney; 
    } 
     
    public function getPeople() { 
        echo "这个人的姓名是：" . $this->setUserName . ',年龄是：'  . $this->userAge . ', 金钱：' . $this->userMoney; 
    } 
} 
/* 实例化，并且创建这个用户的时候，是很痛苦的，需要设置用户名，年龄和金钱*/ 
$peopleInfo = array( 
    'userName' => 'initphp', 
    'userAge' => 28, 
    'userMoney' => '100元' 
    ); 
$UserInfo = new UserInfo; 
//下面需要一步步的设置用户信息，才能得到用户详细信息，过程纠结而痛苦 
$UserInfo->setUserName($peopleInfo['userName']);  
$UserInfo->setUserAge($peopleInfo['userAge']); 
$UserInfo->setUserMoney($peopleInfo['userMoney']); 
$UserInfo->getPeople(); 
```

代码：UserInfoBuilder 用户信息建造者类，将UserInfo的创建过程封装
```php
<?php 
//建造者模式，目的是消除其它对象复杂的创建过程 
class UserInfoBuilder { 
    protected $obj; 
     
    public function __construct() { 
        $this->obj = new UserInfo; 
    } 
     
    public function buildPeople($peopleInfo) { 
        $this->obj->setUserName($peopleInfo['userName']); 
        $this->obj->setUserAge($peopleInfo['userAge']); 
        $this->obj->setUserMoney($peopleInfo['userMoney']); 
    }  
     
    public function getPeople() { 
        $this->obj->getPeople(); 
    } 
} 
 
/* 创建过程被封装了，用户使用简单了 */ 
$peopleInfo = array( 
    'userName' => 'initphp', 
    'userAge' => 28, 
    'userMoney' => '100元' 
    ); 
$UserInfoBuilder = new UserInfoBuilder; 
$UserInfoBuilder->buildPeople($peopleInfo); //直接一个build 
$UserInfoBuilder->getPeople();
```

(3) Comments

John Doe- Reply

February 26, 2013 at 1:18 pm
- saqib sarwar- Reply
  
  February 26, 2013 at 1:20 pm
  
  Nam liber tempor cum soluta nobis eleifend option congue nihil imperdiet doming id quod mazim placerat facer possim assum. Typi non habent claritatem insitam; est usus legentis in iis qui facit eorum claritatem. Investigationes demonstraverunt lectores legere me lius quod ii legunt saepius. Claritas est etiam processus dynamicus, qui sequitur mutationem consuetudium lectorum. Mirum est notare quam littera gothica, quam nunc putamus parum claram, anteposuerit litterarum formas humanitatis per seacula quarta decima et quinta decima. Eodem modo typi, qui nunc nobis videntur parum clari, fiant sollemnes in futurum.
John Doe- Reply

February 26, 2013 at 1:27 pm

Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat.

Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse molestie consequat, vel illum dolore eu feugiat nulla facilisis at vero eros et accumsan et iusto odio dignissim qui blandit praesent luptatum zzril delenit augue duis dolore te feugait nulla facilisi. Nam liber tempor cum soluta nobis eleifend option congue nihil imperdiet doming id quod mazim placerat facer possim assum.

Your email address will not be published. Required fields are marked *

Name *

Email *

Website

Comment

You can use these HTML tags and attributes <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>

PHP设计模式---建造模式(Builder Pattern)

(3) Comments

John Doe- Reply

saqib sarwar- Reply

John Doe- Reply

Leave a Reply