Laravel - 调整图片大小并保存到Amazon S3

Question

当用户上传其个人资料图片时，我希望创建三个具有不同尺寸的图像版本，并将它们全部上传到Amazon S3。

我使用 Image Intervention 包来调整图像大小，这是我的代码。

public function store(Request $request){

    if($request->has('avatar')){

        $avatar = $request->file('avatar');

        $filename = md5(time()).'_'.$avatar->getClientOriginalName();

        $normal = Image::make($avatar)->resize(160, 160);

        $medium = Image::make($avatar)->resize(80, 80);

        $small = Image::make($avatar)->resize(40, 40);

        Storage::disk('s3')->put('/users/'.Auth::user()->uuid.'/avatars/normal/'.$filename, fopen($normal, 'r+'), 'public');

        Storage::disk('s3')->put('/users/'.Auth::user()->uuid.'/avatars/medium/'.$filename, fopen($medium, 'r+'), 'public');

        Storage::disk('s3')->put('/users/'.Auth::user()->uuid.'/avatars/small/'.$filename, fopen($small, 'r+'), 'public');

        $user = User::findorFail(Auth::user()->id);
        $user->avatar = $filename;
        $user->save();

        return redirect()->back();
    }

}

当我尝试提交文件时，出现了这个错误。

fopen(): Filename cannot be empty

非常感谢您的帮助

- Idilassi Jassi

---

Image::make($avatar)->resize(160, 160) 返回什么？ - Brian Lee

它返回一个Image类的实例，但在图像属性中显示为null。 - Idilassi Jassi

Answer 1

更新：我按照以下方式使其正常工作，如果有人遇到相同问题，希望他能发现这段代码有用。

public function store(Request $request){

    if($request->has('avatar')){

        $avatar = $request->file('avatar');
        $extension = $request->file('avatar')->getClientOriginalExtension();

        $filename = md5(time()).'_'.$avatar->getClientOriginalName();

        $normal = Image::make($avatar)->resize(160, 160)->encode($extension);
        $medium = Image::make($avatar)->resize(80, 80)->encode($extension);
        $small = Image::make($avatar)->resize(40, 40)->encode($extension);

        //$path = '/users/'.Auth::user()->uuid.'/avatar/normal/'.$filename;

        //dd($normal);

        Storage::disk('s3')->put('/users/'.Auth::user()->uuid.'/avatar/normal/'.$filename, (string)$normal, 'public');

        Storage::disk('s3')->put('/users/'.Auth::user()->uuid.'/avatar/medium/'.$filename, (string)$medium, 'public');

        Storage::disk('s3')->put('/users/'.Auth::user()->uuid.'/avatar/small/'.$filename, (string)$small, 'public');

        $user = User::findorFail(Auth::user()->id);
        $user->avatar = $filename;
        $user->save();

        return redirect()->back();
    }

}

- Idilassi Jassi

Answer 2

我有一个辅助控制器，你可以试试。 https://github.com/RashiqulRony/Help_Content/blob/master/MediaController.php

<?php

namespace App\Http\Controllers;

use Illuminate\Support\Facades\Storage;
use Illuminate\Support\Str;
use Image;

class MediaController
{
    public $basePath = '';
    public $originalPath = '';
    public $file = '';
    public $name = '';
    public $thumbPath = '';
    public $thumb = false;
    public $storageFolder = 'storage/';
    public $imageResize = [];
    public $thumbResize = [300, 300];

    //Common File Upload Function...
    private function upload()
    {
        $file = $this->file;
        if ($this->name) {
            $fileName = Str::slug($this->name, '-').'.'.$file->getClientOriginalExtension();
        } else {
            $newName = str_replace('.'.$file->getClientOriginalExtension(), '', $file->getClientOriginalName());
            $fileName = time().'-'.Str::slug($newName, '-').'.'.$file->getClientOriginalExtension();
        }
        $data['name'] = $fileName;
        $data['originalName'] = $file->getClientOriginalName();
        $data['size'] = $file->getSize();
        $data['mime_type'] = $file->getMimeType();
        $data['ext'] = $file->getClientOriginalExtension();
        $data['url'] = url($this->storageFolder.$this->originalPath.$data['name']);

        //If real image need to resize...
        if (!empty($this->imageResize)) {
            $file = Image::make($file)->resize($this->imageResize[0], $this->imageResize[1]);
            Storage::put($this->originalPath.'/'.$fileName, (string) $file->encode());
        } else {
            Storage::putFileAs($this->originalPath, $file, $data['name']);
        }

        if ($this->thumb) {
            Image::make($this->storageFolder.$this->originalPath.$data['name'])
                ->resize($this->thumbResize[0], $this->thumbResize[1])
                ->save($this->storageFolder.$this->thumbPath.'/'.$data['name']);
        }
        return $data;
    }

    //Upload Image ("$definePath" and "$definePath/thumb") folder....
    public function imageUpload($requestFile, $path, $thumb = false, $name = null, $imageResize = [], $thumbResize = [300, 300])
    {
        //Path Create...
        $realPath = $this->basePath.$path.'/';
        if (!Storage::exists($realPath)) {
            Storage::makeDirectory($realPath);
        }

        if (!Storage::exists($realPath.'thumb') && $thumb) {
            Storage::makeDirectory($realPath.'thumb');
        }

        $this->file = $requestFile;
        $this->originalPath = $realPath;
        $this->thumbPath = $realPath.'thumb';
        $this->thumb = $thumb;
        $this->name = $name;
        $this->imageResize = $imageResize;
        $this->thumbResize = $thumbResize;
        return $this->upload();
    }

    //Upload Video in "$definePath" folder....
    public function videoUpload($requestFile, $path, $name = null)
    {
        //Path Create...
        $realPath = $this->basePath.$path.'/';
        if (!Storage::exists($realPath)) {
            Storage::makeDirectory($realPath);
        }

        $this->file = $requestFile;
        $this->originalPath = $realPath;
        $this->name = $name;
        return $this->upload();
    }

    //Upload AnyFile in "$definePath" folder....
    public function anyUpload($requestFile, $path, $name = null)
    {
        //Path Create...
        $realPath = $this->basePath.$path.'/';
        if (!Storage::exists($realPath)) {
            Storage::makeDirectory($realPath);
        }

        $this->file = $requestFile;
        $this->originalPath = $realPath;
        $this->name = $name;
        return $this->upload();
    }


    //Upload Content in "$definePath" folder....
    public function contentUpload($content, $path, $name)
    {
        //Path Create...
        $realPath = $this->basePath.$path.'/';
        if (!Storage::exists($realPath)) {
            Storage::makeDirectory($realPath);
        }

        Storage::put($name, $content);

        $data['name'] = $name;
        $data['url'] = $path.'/'.$name;
        return $data;
    }

    //Only thumb image create in "$definePath/thumb" folder....
    public function thumb($path, $file, $thumbPath = false, $thumbWidth = 300, $thumbHeight = 300)
    {
        $realPath = $this->basePath.$path;
        if (!$thumbPath) {
            $thumbPath = $this->basePath.$path.'/thumb';
        }

        if (!Storage::exists($thumbPath)) {
            Storage::makeDirectory($thumbPath);
        }

        $img = Image::make($this->storageFolder.$realPath.'/'.$file)
            ->resize($thumbWidth, $thumbHeight)
            ->save($this->storageFolder.$thumbPath.'/'.$file);

        if (isset($img->filename)) {
            return true;
        } else {
            return false;
        }
    }

    //Delete file "$definePath" folder....
    public function delete($path, $file, $thumb = false)
    {
        $path = $this->basePath.$path.'/';
        if (Storage::exists($path.'/'.$file)) {
            Storage::delete($path.'/'.$file);

            if ($thumb) {
                Storage::delete($path.'/thumb/'.$file);
            }
            return true;
        }
        return false;
    }
}

- Rashiqul Rony

Answer 3

使用Intervention时，请确保在您的文件系统中给出文件的路径。 我所看到的是，您提供了一个字符串（文件名，而不是路径）。 因此，由于这个原因，Intervention可以创建一张图片。

所以，在调用时，您可以先将文件保存在本地文件系统中，然后再给出完整的路径：

$normal = Image::make($full_path)->resize(160, 160);

- Bak87