thinkphp6: 使用业务逻辑层(php 8.1.1 / thinkphp v6.0.10LTS )

一，从命令行创建用到的类：

liuhongdi@lhdpc:/data/php/admapi$ php think make:controller Goods
Controller:app\controller\Goods created successfully.

liuhongdi@lhdpc:/data/php/admapi$ php think make:validate Goods/Detail
Validate:app\validate\Goods\Detail created successfully.

liuhongdi@lhdpc:/data/php/admapi$ php think make:model Goods
Model:app\model\Goods created successfully.

说明：刘宏缔的架构森林是一个专注架构的博客，地址：https://www.cnblogs.com/architectforest

         对应的源码可以访问这里获取： https://github.com/liuhongdi/
         或: https://gitee.com/liuhongdi

说明：作者:刘宏缔 邮箱: 371125307@qq.com

二，配置:

1，数据库:

CREATE TABLE `goods` (
  `goodsId` bigint NOT NULL AUTO_INCREMENT COMMENT 'id',
  `goodsName` varchar(300) NOT NULL DEFAULT '' COMMENT '商品名',
  `price` decimal(15,2) NOT NULL DEFAULT '0.00' COMMENT '价格',
  `stock` int NOT NULL DEFAULT '0' COMMENT '库存',
  PRIMARY KEY (`goodsId`)
) ENGINE=InnoDB AUTO_INCREMENT=0 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci COMMENT='商品表'
 
INSERT INTO `goods` (`goodsId`, `goodsName`, `price`, `stock`) VALUES
(12323, '条纹亮面行李箱 | 德国拜尔PC材质 静音轮', '1098.00', 6);

2, .env

[GOODSIMAGE]
GOODS_IMAGE_DIR=/var/www/html/goodsimage
GOODS_IMAGE_HOST=http://192.168.219.6/goodsimage

3,config/images.php

<?php
return [
   "goodsImageDir"=>env('goodsimage.goods_image_dir' ),
   "goodsImageHost"=>env('goodsimage.goods_image_host'),
];

三，编写php代码:

1,controller/Goods.php

<?php
declare (strict_types = 1);
 
namespace app\controller;
 
use app\BaseController;
use app\result\Result;
use app\validate\Goods\Detail as GoodsDetailValidate;
use app\business\Goods as goodsBusiness;
use think\exception\ValidateException;
use think\Request;
 
class Goods  extends BaseController
{
    /**
     * 商品详情
     *
     * @return \think\Response
     */
    public function Detail(){
        try {
            //echo "begin check:<br/>";
            validate(GoodsDetailValidate::class)
                //->scene('edit')
                ->check($_GET);
        } catch (ValidateException $e) {
            // 验证失败 输出错误信息
            //echo "get error:<br/>";
            //var_dump($e->getError());
            return Result::Error(422,$e->getError());
        }
 
        $goodsId = $this->request->param('goodsid');
        $goods = new goodsBusiness();
        $res = $goods->getOneGoods($goodsId);
        if ($res['code'] == 0){
            return Result::Success($res['data']);
        }  else {
            return Result::Error(1,$res['msg']);
        }
    }
}

2,business/Goods.php

<?php
namespace app\business;
 
use app\model\Goods as GoodsModel;
use app\file\Goods as GoodsFile;
 
class Goods {
    public function getOneGoods($goodId) {
 
        $goodsModel = new GoodsModel();
        $goods = $goodsModel->getOneGoodsById($goodId);
        if (is_null($goods)) {
            return ['code'=>1,'msg'=>"数据错误"];
        } else {
            $goodsFile = new GoodsFile();
            $goodsUrl = $goodsFile->getImgUrl($goodId);
            $goods['goodsUrl'] = $goodsUrl;
            return ['code'=>0,'data'=>$goods];
        }
    }
}

3，model/Goods.php

<?php
declare (strict_types = 1);
 
namespace app\model;
 
use think\facade\Db;
use think\Model;
 
/**
* @mixin \think\Model
*/
class Goods extends Model
{
    //类名与表名不一致时在这里指定数据表名
    protected $table = "goods";
 
    public function getOneGoodsById($goodsId){
        //查询一条记录时用find方法
        $result = Db::table("goods")->where("goodsId",$goodsId)->find();
        return $result;
    }
}

4,validate/Goods/Detail.php

<?php
declare (strict_types = 1);
 
namespace app\validate\Goods;
 
use think\Validate;
 
class Detail extends Validate
{
    /**
     * 定义验证规则
     * 格式：'字段名' =>  ['规则1','规则2'...]
     *
     * @var array
     */
    protected $rule = [
        'goodsid'  => 'require|integer|gt:0',
    ];
 
    /**
     * 定义错误信息
     * 格式：'字段名.规则名' =>  '错误信息'
     *
     * @var array
     */
    protected $message = [
        'goodsid.require' => '商品id必须',
        'goodsid.integer'     => '商品id需要是整数',
        'goodsid.gt'     => '商品id需大于0',
    ];
}

5,file/Goods.php

<?php
namespace app\file;
 
use \think\facade\Config as GConfig;
 
class Goods {
    public function getImgUrl($goodsId) {
        //$images = GConfig::get('images');
        $host = GConfig::get('images.goodsImageHost');
        $subDir = $goodsId - ($goodsId % 1000);
        $imgUrl = $host."/".$subDir."/".$goodsId.".jpg";
        return $imgUrl;
    }
}

6,result/Result.php

<?php
namespace app\result;
use think\response\Json;
 
class Result {
    //success
    static public function Success($data):Json {
        $rs = [
            'code'=>0,
            'msg'=>"success",
            'data'=>$data,
        ];
        return json($rs);
    }
    //error
    static public function Error($code,$msg):Json {
        $rs = [
            'code'=>$code,
            'msg'=>$msg,
            'data'=>"",
        ];
        return json($rs);
    }
}

7,config/images.php

<?php
return [
   "goodsImageDir"=>env('goodsimage.goods_image_dir' ),
   "goodsImageHost"=>env('goodsimage.goods_image_host'),
];

四，测试效果

1,访问存在的数据:

http://192.168.219.6:8000/goods/detail?goodsid=12323

返回:

2,访问不存在的数据:

http://192.168.219.6:8000/goods/detail?goodsid=12324

返回:

3,参数不规范:

http://192.168.219.6:8000/goods/detail

返回:

五，参看php和thinkphp的版本:

php:

liuhongdi@lhdpc:/data/php/admapi$ php --version
PHP 8.1.1 (cli) (built: Dec 20 2021 16:12:16) (NTS)
Copyright (c) The PHP Group
Zend Engine v4.1.1, Copyright (c) Zend Technologies
    with Zend OPcache v8.1.1, Copyright (c), by Zend Technologies 

thinkphp:

liuhongdi@lhdpc:/var/www/html$ cd /data/php/admapi/
liuhongdi@lhdpc:/data/php/admapi$ php think version
v6.0.10LTS