Swoft 图片上传与处理

上传

在Swoft下通过

\Swoft\Http\Message\Server\Request -> getUploadedFiles()['image']

方法可以获取到一个 Swoft\Http\Message\Upload\UploadedFile 对象或者对象数组（取决于上传时字段是image还是image[]）

打印改对象输出：

object(Swoft\Http\Message\Upload\UploadedFile)#1813 (6) {
  ["clientFilename":"Swoft\Http\Message\Upload\UploadedFile":private]=>
  string(25) "蒙太奇配置接口.txt"
  ["clientMediaType":"Swoft\Http\Message\Upload\UploadedFile":private]=>
  string(10) "text/plain"
  ["error":"Swoft\Http\Message\Upload\UploadedFile":private]=>
  int(0)
  ["tmpFile":"Swoft\Http\Message\Upload\UploadedFile":private]=>
  string(55) "/var/www/swoft/runtime/uploadfiles/swoole.upfile.xZyq0d"
  ["moved":"Swoft\Http\Message\Upload\UploadedFile":private]=>
  bool(false)
  ["size":"Swoft\Http\Message\Upload\UploadedFile":private]=>
  int(710)
}

都是私用属性，无法访问，但是可以通过对应方法访问到

getClientFilename()      //得到文件原名称
getClientMediaType()     //得到文件类型
getSize()        //获取到文件大小

通过方法

moveTo()      //将文件从临时位置转移到目录

上面方法返回为NULL，在移动文件到指定位置时最好判断一下文件夹是否存在，不存在创建

图片处理

借助 ImageMagick 工具完成

ubuntu下一键安装

I. 安装ImageMagick
sudo apt-get install imagemagick

II. 安装imagemagick 的lib 供php调用
sudo apt-get install libmagick++-dev

III. 调用当前的pecl安装imagick
pecl install imagick

IV. 修改php.ini.重启nginx服务器
在php.ini中添加: extension = imagick.so

在安装完成后修改完 /etc/php/7.0/cli/php.ini 后发现 phpinfo 页面打印出来没有出现下面信息，于是又修改了/etc/php/7.0/fpm/php.ini 才出现下面信息

安装 Intervention Image

composer require intervention/image

安装完成后可以直接在页面use

use Intervention\Image\ImageManager;

$manager = new ImageManager(array('driver' => 'imagick'));
//宽缩小到300px，高自适应
$thumb = $manager->make($path)->resize(300, null, function ($constraint) {
                $constraint->aspectRatio();
});
$thumb->save($path);

完整代码

namespace App\Controllers\Api;

use Intervention\Image\ImageManager;
use Swoft\Http\Message\Server\Request;
use Swoft\Http\Message\Upload\UploadedFile;
use Swoft\Http\Server\Exception\NotAcceptableException;
use Swoft\Http\Server\Bean\Annotation\Controller;
use Swoft\Http\Server\Bean\Annotation\RequestMapping;
use Swoft\Http\Server\Bean\Annotation\RequestMethod;


class FileController
{
    //图片可接受的mime类型
    private static $img_mime = ['image/jpeg','image/jpg','image/png','image/gif'];

    /**
     * 文件上传
     * @RequestMapping(route="image",method=RequestMethod::POST)
     */
    public static function imgUpload(Request $request){
        $files = $request->getUploadedFiles()['image'];
        if(!$files){
           throw new NotAcceptableException('image字段为空');
        }

        if(is_array($files)){
            $result = array();
            foreach ($files as $file){
                self::checkImgFile($file);
                $result[] = self::saveImg($file);
            }
        }else{
            self::checkImgFile($files);
            return self::saveImg($files);
        }

    }

    /**
     * 保存图片
     * @param UploadedFile $file
     */
    protected static function saveImg(UploadedFile $file){
        $dir = alias('@upload') . '/' . date('Ymd');
        if(!is_dir($dir)){
            @mkdir($dir,0777,true);
        }
        $ext_name = substr($file->getClientFilename(), strrpos($file->getClientFilename(),'.'));
        $file_name = time().rand(1,999999);
        $path = $dir . '/' . $file_name . $ext_name;
        $file->moveTo($path);
        //修改移动后文件访问权限，文件默认没有访问权限
        @chmod($path,0775);
        //生成缩略图
        $manager = new ImageManager(array('driver' => 'imagick'));
        $thumb = $manager->make($path)->resize(300, null, function ($constraint) {
            $constraint->aspectRatio();
        });
        $thumb_path = $dir. '/' . $file_name . '_thumb' .$ext_name;
        $thumb->save($dir. '/' . $file_name . '_thumb' .$ext_name);
        @chmod($thumb_path,0775);
        return [
            'url' => explode(alias('@public'),$path)[1],
            'thumb_url' => explode(alias('@public'),$thumb_path)[1]
        ];
    }

    /**
     * 图片文件校验
     * @param UploadedFile $file
     * @return bool
     */
    protected static function checkImgFile(UploadedFile $file){
        if($file->getSize() > 1024*1000*2){
            throw new NotAcceptableException($file->getClientFilename().'文件大小超过2M');
        }
        if(!in_array($file->getClientMediaType(), self::$img_mime)){
            throw new NotAcceptableException($file->getClientFilename().'类型不符');
        }
        return true;
    }

}

使用

FileController::imgUpload($request);

说明

当前保存文件路径为 alias("@upload")，需要在 /config/define.php 手动填上该路径

$aliases = [
    '@root'       => BASE_PATH,
    '@env'        => '@root',
    '@app'        => '@root/app',
    '@res'        => '@root/resources',
    '@runtime'    => '@root/runtime',
    '@configs'    => '@root/config',
    '@resources'  => '@root/resources',
    '@beans'      => '@configs/beans',
    '@properties' => '@configs/properties',
    '@console'    => '@beans/console.php',
    '@commands'   => '@app/command',
    '@vendor'     => '@root/vendor',
    '@public'     => '@root/public',     //public目录，也是nginx设置站点根目录
    '@upload'     => '@public/upload'    //上传目录
];

Swoft 不提供静态资源访问，可以使用nginx托管

配置nginx

vim /etc/nginx/sites-avaiable/default

server {
        listen 80 default_server;
        listen [::]:80 default_server;
        
        # 域名设置
        server_name eko.xiao.com;
        #设置nginx根目录
        root /var/www/html/swoft/public;

        # 将所有非静态请求转发给 Swoft 处理
        location / {
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header Host $host;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header Connection "keep-alive";
            proxy_pass http://127.0.0.1:9501;
        }

        location ~ \.php$ {
                proxy_pass http://127.0.0.1:9501;
        }
        # 静态资源使用nginx托管
        location ~* \.(js|map|css|png|jpg|jpeg|gif|ico|ttf|woff2|woff)$ {
            expires max;
        }
}

Swoft 图片上传与处理

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