drb/app/Service/IOService.php

<?php

namespace App\Service;

use App\Exports\MyExport;
use App\Model\Header_ext;
use Illuminate\Support\Facades\Route;

class IOService extends Service
{


    public function apiExport($request){

        list($status,$data) = $this->apiHook($request);
        if($status != 200) return [false,$data];
        $list = $data['data']['data'];

        $data = $request->all();
        $menu_id = $data['menu_id'];

        $head_list = Header_ext::where('menu_id',$menu_id)->where('del_time',0)->get()->toArray();
        $marge = [];
        foreach ($head_list as &$value){
            $positions = explode(':',$value['position']);
            $value['e_words'] = [];
            foreach ($positions as $vv){
                $value['e_words'][] = $vv;
            }
            if(count($positions) === 2) $marge[] = $value['position'];
        }
        list($head,$max_row) = $this->setHeadEWordChangeNum($head_list);
        //初始化一个列数组
        $init_row = [];
        for ($i=0;$i<$max_row;$i++){
            $init_row[$i] = '';
        }

        //拼所有的表头，先确认每行的表头

        $excel_head  = [];
        $line_max = 0;
        foreach ($head as $v){
            $line = $v['lines'][0]-1;
            $detail = [
                'key' => $v['key'],
                'value' => $v['value'],
                'rows' => $v['rows'],
                'lines' => $v['lines'],
            ];
            foreach ($v['lines'] as $vv){
                if($vv > $line_max) $line_max = $vv;
            }
            $excel_head[$line][] = $detail;
        }

        //初始化表头的行
        $excel_data = [];
        for ($i=0;$i<$line_max;$i++){
            $excel_data[$i] = $init_row;
        }
        $key_word = [];
        foreach ($excel_head as $k=>$v){
            foreach ($v as $vv){
                $row = $vv['rows'][0];
                if(!empty($vv['key']))  $key_word[$vv['key']] = $row;

                $excel_data[$k][$row] = $vv['value'];
            }

        }
        foreach ($list as $v){
            $detail = $init_row;

            foreach ($key_word as $key=>$vv){
                if(isset($v[$key])) $detail[$vv] = $v;
            }

            $excel_data[] = $detail;
        }

        $excel = (new MyExport())->commonExport( [
            'data' => $data,
            'params' => [
                'merge' => $marge
            ],
        ]);

        return [true,$excel];
    }


    /**
     * 获取具体数据，通过访问页面相同接口
     * @param $request
     * @return array
     */
    public function apiHook($request){

        $data = $request->all();
        $api = $data['api'];
        $route = Route::getRoutes();
        $return = [];
        foreach ($route as $v){

            $uri = $v->uri();
            $action = $v->getAction();
            $return[$uri] = $action['uses'];
        }

        $class = explode('@',$return[$api]);
        $use_name = '\\'.$class[0];
        $example = new $use_name();
        $name = $class[1];
        $return = $example->$name($request);
        return $return;
    }

    /**
     * 将合并定位的excel数据进行处理
     * @param $head
     * @return mixed
     */
    public function setHeadEWordChangeNum($head){
        $max_row = 0;
        foreach ($head as &$v){
            $v['rows'] = [];
            $v['lines'] = [];
            foreach ($v['e_words'] as $vv){
                preg_match_all('/\d+/', $vv, $matches);
                $number = $matches[0][0];
                $v['lines'][] = $number;
                $row = eWordChangeNum(str_replace($number,'',$vv));
                $v['rows'][] = $row;
                if($row>$max_row) $max_row = $row;
            }
        }
        foreach ($head as &$v){
            sort($v['rows']);
            sort($v['lines']);
        }
        return [$head,$max_row];
    }




}