在 laravel 8 中使用 intervention/imagecache 包缓存图像

Question

我想用intervention/imagecache包缓存一张图片（从github下载）。 我的问题： 在主机上删除时间图像或无法访问本地缓存图像时缓存图像之后。似乎 laravel 不从缓存中读取图像，然后从图像 url 中读取...如何解决？ 我的代码是：

<?php

namespace App\Http\Services\Image;

use Illuminate\Support\Facades\Config;
use Intervention\Image\Facades\Image;


class ImageCacheService
{
    public function cache($imagePath, $size = '')
    {
        //set image size
        $imageSizes = Config::get('image.cache-image-sizes');

        if (!isset($imageSizes[$size])) {
            $size = Config::get('image.default-current-cache-image');
        }
        $width = $imageSizes[$size]['width'];
        $height = $imageSizes[$size]['height'];

        //cache image
        if (file_exists($imagePath)) {
            $img = Image::cache(function ($image) use ($imagePath, $width, $height) {
                return $image->make($imagePath)->fit($width, $height);
            }, Config::get('image.image-cache-life-time'), true);
            return $img->response();
        } else {
            $img = Image::canvas($width, $height, '#cdcdcd')->text('تصویر یافت نشد-404', $width / 2, $height / 2, function ($font) {
            $font->color('#333333');
            $font->align('center');
            $font->valign('center');
            $font->file(public_path('admin-assets/fonts/IRANSans/IRANSansWeb.woff'));
            $font->size(24);
            });

            return $img->response();
        }
    }
}

<?php
namespace App\Http\Controllers\Admin\Content;

use App\Http\Controllers\Controller;
use App\Http\Requests\Admin\Content\PostCategoryRequest;
use App\Http\Services\Image\ImageCacheService;
use App\Http\Services\Image\ImageService;
use App\Models\Content\PostCategory;
use Illuminate\Http\Request;
use Illuminate\Support\Str;

class CategoryController extends Controller
{
public function create()
    {
        $imageCache = new ImageCacheService();
        return $imageCache->cache('1.png');
        return view("admin.content.category.create");
    }
}

包配置/image.php:

<?php

return [

    /*
    |--------------------------------------------------------------------------
    | Image Driver
    |--------------------------------------------------------------------------
    |
    | Intervention Image supports "GD Library" and "Imagick" to process images
    | internally. You may choose one of them according to your PHP
    | configuration. By default PHP's "GD Library" implementation is used.
    |
    | Supported: "gd", "imagick"
    |
    */

    'driver' => 'gd',
    //index size
    'index-image-sizes' => [
        'large' => [
            'width' => 800,
            'height' => 600
        ],
        'medium' => [
            'width' => 400,
            'height' => 300
        ],
        'small' => [
            'width' => 80,
            'height' => 60
        ],
    ],
    'default-current-index-image' => 'medium',



    //cache size
    'cache-image-sizes' => [
        'large' => [
            'width' => 800,
            'height' => 600
        ],
        'medium' => [
            'width' => 400,
            'height' => 300
        ],
        'small' => [
            'width' => 80,
            'height' => 60
        ],
    ],
    'default-current-cache-image' => 'medium',
    'image-cache-life-time' => 999999,
    'image-not-found' => '',
];

我想要缓存图像和图像不缓存

Answer 1

Intervention/imagecache的src中有一个Intervention\Image\ImageCacheController类https://github.com/Intervention/imagecache/blob/master/src/Intervention/Image/ImageCacheController.php

您可以使用该控制器在 web.php 中定义路由，然后从缓存中获取图像，例如：

Route::get('image/{template}/{filename}', [ImageCacheController::class, 'getResponse'])->name('imageCache.response')

创建一个 config/imagecache.php 看起来像： https://github.com/Intervention/imagecache/blob/master/src/config/config.php

如果你想创建一个自定义模板，确保它看起来像https://github.com/Intervention/imagecache/blob/master/src/Intervention/Image/Templates/Large.php