Question

我是如何尝试通过Laravel 5.1将图像上传到S3，而S3中收到的图像被认为已损坏，如下图所示。

第1步：使用Composer

作曲家需要aws / aws-sdk-php-laravel：~3.0
来自laravel 5.1供应商的打开配置

'region' => env('AWS_REGION', 'my region'), 'version' => 'latest', 'ua_append' => [ 'L5MOD/' . AwsServiceProvider::VERSION, ], 'credentials' => [ 'key' => 'enter your code', 'secret' => 'enter your code' ], 'scheme' => 'http'

第2步

在config / app.php

Providers 'Aws\Laravel\AwsServiceProvider', Alias 'AWS' => 'Aws\Laravel\AwsFacade'

第3步

设置控制器

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use App\Http\Requests;
use \Auth, \Redirect, \Validator, \Input, \Session, \Response;
use App\Http\Controllers\Controller;
use App\Http\Requests\PhotoRequest;
use App\Photo;
use \Image;
use \File;

use AWS;

class PhotoController extends Controller
{
protected   $photo;
public function __construct(Photo $photo) {
        $this->photo = $photo;
    }   

public function index()
{
        $p = Photo::all();
        return view('photo.index')
            ->with('photos',$p);

}

public function create()
{
        return view('photo.create')->with('photos',$this->_data);
}


/**
 * Store a newly created resource in storage.
 *
 * @return Response
 */
public function store(PhotoRequest $request)
{

     $input = Input::all();

        if ($this->photo->isValid($input)) {
            $img = $request->file('file');

            $mime = $input['file']->getMimeType();
            $fileName = time() . "." . strtolower($input['file']->getClientOriginalExtension());

            $image = Image::make(file_get_contents($img->getRealPath()));
            $this->upload_s3($image, $fileName, $mime, "resource/Original");
            $image->resize(400, 300);
            $this->upload_s3($image, $fileName, $mime, "resource/Thumbnail");

            Photo::create([
                'title' => Input::get('title'),
                'file' => $fileName,
            ]);

            Session::flash('exito', $image);
            return Redirect::route('photo.index');
        } else {
            Session::flash('error', 'Failed');
            return Redirect::back()->withInput()->withErrors($this->photo->messages);
        }
}  
    private function upload_s3($image, $fileName, $mime, $folder) {
        $s3 = AWS::createClient('s3');

        try{
             $s3->putObject(array(
                'Bucket'      => 'mybucket',
                'Key'         => "{$folder}/{$fileName}",
                'Body'        => "$image",
                'ContentType' => $mime,
                'ACL'         => 'public-read',


            ));   
         } catch(S3Exception $e){
            echo $e->getAwsErrorCode() . "\n";
            // The bucket couldn't be created
            echo $e->getMessage() . "\n";
         }

    }

    private $_data = array();
    private $path = "img/upload/";

}

第4步

在Laravel 5.1 for UI中设置视图

@extends('app')
@section('content')

<h1>Create:</h1>
{!! Form::open(array('url' => 'photo/store', 'files' => true)) !!}

    <div class="form-group">
      <label for="title">Title</label>
      <input type="text" class="form-control" id="title" name="title" placeholder="Photo Title">
       <span class="help-block color-red">{!! $errors->first('title') !!}</span>
    </div>
    <div class="form-group">
      <label for="file">File</label>
      <input type="file" class="form-control" id="file" name="file">
       <span class="help-block color-red">{!! $errors->first('file') !!}</span>
    </div>
    <button type="submit" class="btn btn-default">Create</button>
{!! Form::close() !!}
@endsection

请告诉我我离开了什么，我应该寻找什么？，这是因为我搜索了许多解决方案，即使我按照其他一些开发人员提出的几个步骤，它仍然不适用于我。，要么是我对这些功能不够理解，要么我的尝试没有合适的解决方案？

Answer 1

好了，现在我们知道您正在使用干预，使用make实例化Image对象的适当方式：

$image = Image::make($input['file']);

根据文档，make()方法可以采用字符串，路径以及UploadedFile对象。

现在安全地将数据写入S3：

         $s3->putObject(array(
            'Bucket'      => 'mybucket',
            'Key'         => "{$folder}/{$fileName}",
            'Body'        => (string) $image->encode(),
            'ContentType' => $mime,
            'ACL'         => 'public-read',
        ));

顺便说一下，为什么不将本机S3适配器用于Laravel的文件系统？ https://laravel.com/docs/5.3/filesystem#driver-prerequisites

通过Laravel 5.1将图像/文件上传到AWS S3，遗憾的是图像已损坏

1 个答案: