导出excel文件maatwebsite laravel答案

【问题标题】：export excel file maatwebsite laravel导出excel文件maatwebsite laravel
【发布时间】：2019-05-20 02:37:59
【问题描述】：

我阻止从 laravel 上的表中导出 excel 文件，这是我的控制器：

    <?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use DB;
use Excel;

class ExportExcelController extends Controller
{
  function Export()
  {
    $customer_data = DB::table('qualys')->get();
    return view('export_excel')->with('customer_data', $customer_data);
  }
  function excel()
  {
    $customer_data = DB::table('qualys')->get();
    $customer_array[] = array('ip','qid');
    // dd($customer_data);
    foreach($customer_data as $customer)
    {
      // dd($customer);
       $customer_array[] = array(
                 'ip' => $customer->qid,
                 'qid' => $customer->ip
      );
    }


     Excel::download('customer data', function($excel) use ($customer_array) {
          $excel->setTitle('customer Data');
         $excel->sheet('Customer Data', function($sheet) use ($customer_array)
          {
            $sheet->fromArray($customer_array, null, 'A1', false, false);
          });
     })->download('xls', 'test');
  }
}

我在第 29 行被阻止，我无法取回文件，这是以下错误：

Argument 2 passed to Maatwebsite\Excel\Excel::download() must be of the type string, object given, called in /var/www/html/qualys/vendor/laravel/framework/src/Illuminate/Support/Facades/Facade.php on line 223

我已经测试了几个“代码”但没有任何效果:(你能帮我吗？诚挚的。

【问题讨论】：

下载函数的第一个参数需要是一个对象“download(object $export, string $fileName, string $writerType = null)”，你传递2个字符串
没有注释，复制粘贴过程中的小错误，就是这样： Excel::download('customer data', function($excel) use ($customer_array) { $excel ->setTitle('客户数据'); $excel->sheet('客户数据', function($sheet) 使用 ($customer_array) { $sheet->fromArray($customer_array, null, 'A1', false, false ); }); })->下载('xls', 'test');

标签： php laravel laravel-5 frameworks

【解决方案1】：

你可以试试这段代码，

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use DB;
use Excel;

class ExportExcelController extends Controller
{
  function Export()
  {
    $customer_data = DB::table('qualys')->get();
    return view('export_excel')->with('customer_data', $customer_data);
  }
  function excel()
  {
    $customer_data = DB::table('qualys')->get();
    $customer_array[] = array('ip','qid');
    // dd($customer_data);
    foreach($customer_data as $customer)
    {
      // dd($customer);
       $customer_array[] = array(
                 'ip' => $customer->qid,
                 'qid' => $customer->ip
      );
    }

      // change download to create
     Excel::create('filename', function($excel) use ($customer_array) {
          $excel->setTitle('customer Data');
         $excel->sheet('Customer Data', function($sheet) use ($customer_array)
          {
            $sheet->fromArray($customer_array, null, 'A1', false, false);
          });
     })->download('xls');
     // donwload method only accept one parament and that is file extension
  }
}

【讨论】：

您好，从 maatwebsite/excel 3.1 版开始，“create”命令不再存在，取而代之的是 Excel::download/Excel::store($yourExport) 但不幸的是它不起作用.真诚的。

【解决方案2】：

没关系，我知道怎么用最新版本了-> 输入的第一个命令：

php artisan make:export UsersExport --model=User

然后创建模型你要导出的数据库

php artisan make:model User

然后是我的控制器：

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use DB;
use Excel;
use App\Exports\QualysExport;
use App\Http\Controllers\Controller;

class ExportExcelController extends Controller
{
  function Export()
  {
    $customer_data = DB::table('user')->get();
    return view('export_excel')->with('customer_data', $customer_data);
  }

      public function excel()
      {
          return Excel::download(new UserExport, 'Users.xlsx');
      }

}

然后是下载文件的路径：

 Route::get('/excel_export/excel', 'ExportExcelController@excel')->name('export_excel.excel');

下载来了！真诚的

【讨论】：