如何在laravel 5.4中使用ecspos-php？

Question

先谢谢你了，希望你能帮我解决问题，这是我第一次使用框架laravel 5.4 在windows 7操作系统的struk打印和使用epson U220打印机的情况下已在本地连接 USB，但当我尝试访问页面并单击打印按钮时，打印机无法打印页面。

控制器

<?php

    namespace App\Http\Controllers;

    use App\Pembayaran;
    use Illuminate\Http\Request;
    use Yajra\DataTables\DataTables;
    use Mike42\Escpos\Printer; 
    use Mike42\Escpos\PrintConnectors\WindowsPrintConnector;
    use Mike42\Escpos\PrintConnectors\FilePrintConnector;
    use Mike42\Escpos\PrintConnectors\NetworkPrintConnector;

    class PembayaranController extends Controller
    {
        public function print(Request $request)
        {
            try {
                $connector = new WindowsPrintConnector("\wind7\usb\epson");
                $printer = new Escpos($connector);
                $printer -> text("Hello World!\n");
                $printer -> cut();

                $printer -> close();
            } catch(Exception $e) {
                echo "Couldn't print to this printer: " . $e -> getMessage() . "\n";
            }
        }
    }

路线

<?php

Auth::routes();

Route::get('/', function () {
    return redirect()->route('home');
});
Route::get('/home', 'HomeController@index')->name('home');
Route::post('/pembayaran/print', 'PembayaranController@print')->name('pembayaran.print');

Blade

<form action="{{ route('pembayaran.print') }}" method="POST">
            <input type="text" name="username" class="form-control">
            <input type="hidden" name="_token" class="form-control" value="{!! csrf_token() !!}">
            <button type="submit" name="submit" class="btn btn-info">Print</button
</form>

Answer 1

应该将 share name 作为第一个参数传递给 WindowsPrintConnector，而不是：

例如：

$connector = new WindowsPrintConnector("epson U220");

如果共享名称是 epson U2020

如何在laravel 5.4中使用ecspos-php？

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