一、安装第三方

composer require maatwebsite/excel

版本2.1和现在版本 有所不一样

二、导入

<?php
namespace App\Import;
use Maatwebsite\Excel\Concerns\ToCollection;class TestImport implements ToCollection
{public function __construct(){}public function collection(Collection $collection){//处理导入文件的数据，完成内部业务数据逻辑unset($collection[0]);foreach ($collection as $key=>$row){//处理数据}}}

<?php
namespace App\Http\Controller;
use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use App\Import\TestImport;
use Maatwebsite\Excel\Facades\Excel;class TestController extends Controller
{public function test(Request $request){$path1 = $request->file('file')->store('temp');$path = storage_path('app').'/'.$path1;Excel::import(new TestImport(),$path);}
}

三、导出

<?php
namespace App\Derive;
use Maatwebsite\Excel\Concerns\FromCollection;
use Maatwebsite\Excel\Concerns\Exportable;
use Maatwebsite\Excel\Concerns\WithHeadings;class TestDerive implements FromCollection, WithHeadings
{use Exportable;private $data;private $headings;//数据注入public function __construct($data, $headings){$this->data = $data;$this->headings = $headings;}//实现FromCollection接口public function collection(){return collect($this->data);}//实现WithHeadings接口public function headings(): array{return $this->headings;}
}

<?php
namespace App\Http\Controller;
use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use App\Import\TestImport;
use Maatwebsite\Excel\Facades\Excel;
use App\Derive\TestDerive;
use Illuminate\Support\Facades\File;class TestController extends Controller
{public function test(){//自定义导出的数据arrErrorInfo = [];//导出的文件表头信息$head = ['uid','reason'];//根据数据生成的excel文件地址 自定义$publicpath = date('Y-m-d',time()).'/test.xls';//如果这个地址前面有日期的区分，需要判断文件夹赋予文件权限if ( !File::isDirectory(date('Y-m-d',time())) )File::makeDirectory(date('Y-m-d',time()), $mode = 0777, true, true);$bRet = Excel::store(new AvatarExcel($arrErrorInfo, $head), $publicpath);//todo 判断生成的文件是否为真，根据业务处理}
}

config配置文件夹中excel.php，配置生成文件的地址

    'local_path'          => public_path().'/error_excel/',