基于PHP后端设计商城快递运费模版系统

蔚落 2023-02-21 06:52 28阅读 0赞

## 先看成品效果: ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjQzMzk3MA_size_16_color_FFFFFF_t_70]

## 编辑页面展示:(以模版一为例) ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjQzMzk3MA_size_16_color_FFFFFF_t_70 1]  
先分析下思路,我们最后写一个接口,通过三个参数自动计算快递费用.

首先我们要定义一个全国通用的运费计算方式(即默认运费),即不指定地区的时候,我们按全国通用费用来计算运费.  
例如当购买不超过10件时,费用设置为10元,每增加一件,运费涨2元.

其次如果指定地区来收取运费,那么就按照我们定义的地区规则来执行  
例如我们设置新疆在购买10件内运费50元,每增加一件,收取5元.  
可以指定多个地区,甚至国外…这个是可选的

同时我们还可以指定包邮的地区,同时设置在多少件包邮,如果超过了范围则执行全国默认规则.这个是可选的

## 数据库: ##

**快递地址省市县表 mxd\_express\_city**  
CREATE TABLE `mxd_express_city` (  
`id` int(11) NOT NULL DEFAULT ‘0’,  
`pid` int(11) DEFAULT NULL,  
`cityname` varchar(255) CHARACTER SET utf8 DEFAULT NULL,  
`type` int(11) DEFAULT NULL,  
PRIMARY KEY (`id`)  
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8\_unicode\_ci COMMENT=‘快递地址省市县表’;  
![在这里插入图片描述][20200629171332522.png]

**快递模版表 mxd\_express\_delivery**  
CREATE TABLE `mxd_express_delivery` (  
`id` int(11) NOT NULL AUTO\_INCREMENT,  
`name` varchar(100) NOT NULL DEFAULT ‘’ COMMENT ‘模版名称’,  
`baby_address` varchar(1000) NOT NULL DEFAULT ‘’ COMMENT ‘宝贝地址’,  
`send_time` int(10) unsigned NOT NULL DEFAULT ‘0’ COMMENT ‘限定发货时间’,  
`is_free` int(255) NOT NULL COMMENT ‘是否包邮 0=不包邮，1=包邮’,  
`price_method` int(8) NOT NULL DEFAULT ‘0’ COMMENT ‘计价方式’,  
`specify_conditions` int(8) NOT NULL DEFAULT ‘0’ COMMENT ‘是否指定条件包邮’,  
`default_pieces` int(255) DEFAULT NULL COMMENT ‘默认件数’,  
`default_price` decimal(10,2) DEFAULT NULL COMMENT ‘默认价格’,  
`add_pieces` int(10) DEFAULT NULL COMMENT ‘续件’,  
`add_price` decimal(10,2) DEFAULT NULL COMMENT ‘续费’,  
`create_time` int(10) NOT NULL DEFAULT ‘0’ COMMENT ‘添加时间’,  
`update_time` timestamp NOT NULL DEFAULT CURRENT\_TIMESTAMP ON UPDATE CURRENT\_TIMESTAMP COMMENT ‘更新时间’,  
PRIMARY KEY (`id`) USING BTREE  
) ENGINE=InnoDB AUTO\_INCREMENT=10 DEFAULT CHARSET=utf8 ROW\_FORMAT=DYNAMIC COMMENT=‘快递模版表’;

![在这里插入图片描述][20200629171421363.png]

**运送方式表 mxd\_express\_shipping\_method**

CREATE TABLE `mxd_express_shipping_method` (  
`id` int(11) NOT NULL AUTO\_INCREMENT,  
`template_id` int(10) unsigned NOT NULL DEFAULT ‘0’ COMMENT ‘关联模板ID’,  
`fast_address` varchar(10000) NOT NULL DEFAULT ‘0’ COMMENT ‘运送地区’,  
`first_pieces` int(10) unsigned DEFAULT ‘0’ COMMENT ‘首件’,  
`first_weight` decimal(10,2) NOT NULL COMMENT ‘首重’,  
`first_volume` decimal(10,2) NOT NULL DEFAULT ‘0.00’ COMMENT ‘首体积’,  
`first_amount` decimal(10,2) DEFAULT NULL COMMENT ‘首费’,  
`add_pieces` int(10) NOT NULL DEFAULT ‘0’ COMMENT ‘续件’,  
`add_weight` decimal(10,2) NOT NULL COMMENT ‘续重’,  
`add_volume` decimal(10,2) unsigned DEFAULT ‘0.00’ COMMENT ‘续体积’,  
`add_amount` decimal(10,2) NOT NULL DEFAULT ‘0.00’ COMMENT ‘续费’,  
`create_time` varchar(255) NOT NULL,  
`update_time` timestamp NULL DEFAULT CURRENT\_TIMESTAMP ON UPDATE CURRENT\_TIMESTAMP,  
PRIMARY KEY (`id`) USING BTREE  
) ENGINE=InnoDB AUTO\_INCREMENT=26 DEFAULT CHARSET=utf8 ROW\_FORMAT=DYNAMIC COMMENT=‘运送方式表’;

**包邮条件表 mxd\_express\_free**

CREATE TABLE `mxd_express_free` (  
`id` int(11) NOT NULL AUTO\_INCREMENT,  
`template_id` int(10) unsigned DEFAULT ‘0’ COMMENT ‘关联模板ID’,  
`address` varchar(1000) DEFAULT ‘’ COMMENT ‘包邮地区’,  
`pieces` int(10) unsigned DEFAULT ‘1’ COMMENT ‘包邮件数’,  
`weight` decimal(6,2) NOT NULL DEFAULT ‘0.00’ COMMENT ‘包邮重量’,  
`volume` decimal(8,2) NOT NULL DEFAULT ‘0.00’ COMMENT ‘包邮体积’,  
`create_time` varchar(255) NOT NULL,  
`update_time` timestamp NOT NULL DEFAULT CURRENT\_TIMESTAMP ON UPDATE CURRENT\_TIMESTAMP,  
PRIMARY KEY (`id`) USING BTREE  
) ENGINE=InnoDB AUTO\_INCREMENT=42 DEFAULT CHARSET=utf8 ROW\_FORMAT=DYNAMIC COMMENT=‘包邮条件表’;

先把前端自己做出来,前端的难度不是很大,增删改查先把后台做出来.

然后前端页面  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjQzMzk3MA_size_16_color_FFFFFF_t_70 2]  
我们后端写一个接口自动计算运费.

接口思路是这样的:  
我们需要三个参数,首先佳贝艾特2段这个商品用了哪个快递模版,那么这个模版id是必须的,  
然后是购买的多少件,  
然后是发到地址.

所以我们需要这三个参数就可以自动计算运费了

第一步,我们通过模版id,判断该商品是否包邮,如果包邮,则不执行后续操作,直接  
$freight = 0;截断了事.

第二步,我们判断有没有增加指定地区的运费规则,如果有的话,那么我们先判断件数,分两种情况

第三步,我们判断有没有指定地区包邮,如果有包邮的,那么 $freight = 0;直接截断.

第四步,以上三种情况走完后,最后往下继续走,先判断件数,也是两种情况,算出运费即可

最后, return $freight; 即可.

下面贴出这个功能,只要调用了这个接口,运费就自动计算好了:

/** * 通过地址和件数计算运费 * @param $addr 邮寄地址 * @param $pieces 邮寄件数 * @param $express_template_id 快递模板id * @return int|string */
        public function get_freight($addr,$pieces,$express_template_id){ 
            $freight = 0;
            $express_template_info = D('ExpressDelivery')->where(['id'=>$express_template_id])->find();
    
            //包邮
            if($express_template_info['is_free'] == 1){ 
                $freight = 0;
                return  $freight;
            }
    
            $express_template_info['child1'] = M()
                ->table('mxd_express_shipping_method')
                ->where(['template_id' => $express_template_id])
                ->select();
    
            $express_template_info['child2'] = M()
                ->table('mxd_express_free')
                ->where(['template_id'=>$express_template_id])
                ->select();
    
    
            $city_id = M()->table('mxd_express_city')
                ->where(['cityname'=>$addr,'type'=>1])
                ->field('id')
                ->find()['id'];
    
    
            //首先判断地址在不在child1中，如果在的话就按其规则计算，如果不在就按通用运费计算
            if(!empty($express_template_info['child1'])){ 
                foreach ($express_template_info['child1'] as $i => $node){ 
    
                    if(in_array($city_id,explode(',',$node['fast_address']))){ 
                        //按照指定地区的快递费用规则计算
                        if($pieces <= $node['first_pieces']){ 
                            $freight = $node['first_amount'];
                            return $freight;
                        }else{ 
                            if($node['add_pieces']){ 
                                $add_pieces = bcdiv(($pieces - $node['first_pieces']) , $node['add_pieces'],2);
                                $freight = $node['first_amount'] +  bcmul($add_pieces,$node['add_amount'],2) ;
                                return $freight;
                            }else{ 
                                $freight = $node['first_amount'];
                                return $freight;
                            }
                        }
                    }
                }
            }
    
    
            //判断是否在包邮地区
            if(!empty($express_template_info['child2'])){ 
                foreach ($express_template_info['child2'] as $j => $val){ 
                    if(in_array($city_id,explode(',',$val['address']))){ 
                        if($pieces <= $val['pieces']){ 
                            $freight = 0;
                            return  $freight;
                        }
                    }
                }
            }
    
    
    
            //获取默认件数
            $default_pieces = $express_template_info['default_pieces'];
            //获取默认运费
            $default_price = $express_template_info['default_price']  ;
    
            //按默认规则计算运费
            if($pieces <= $default_pieces){ 
                $freight = $default_price;
            }else{ 
                if($express_template_info['add_pieces']){ 
                    $add_pieces = bcdiv(($pieces - $default_pieces) , $express_template_info['add_pieces'],2);
                    $freight = $default_price +  bcmul($add_pieces,$express_template_info['add_price'],2) ;
                }else{ 
                    $freight = $default_price;
                }
            }
    
            return $freight;
    
        }

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjQzMzk3MA_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20200629170410269.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjQzMzk3MA==,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjQzMzk3MA_size_16_color_FFFFFF_t_70 1]: https://img-blog.csdnimg.cn/20200629170520505.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjQzMzk3MA==,size_16,color_FFFFFF,t_70
[20200629171332522.png]: https://img-blog.csdnimg.cn/20200629171332522.png
[20200629171421363.png]: https://img-blog.csdnimg.cn/20200629171421363.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjQzMzk3MA_size_16_color_FFFFFF_t_70 2]: https://img-blog.csdnimg.cn/20200629171756375.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjQzMzk3MA==,size_16,color_FFFFFF,t_70