composer安装七牛SDK

composer require qiniu/php-sdk

config文件保存七牛云配置信息

//七牛云空间配置
    'qiniu' => [
        'AccessKey'     =>      'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx',
        'SecretKey'     =>      'yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy',
        'bucket'        =>      'zzzzz',
        'domain'        =>      'demo.domain.net/'
    ]

创建Qiniu Model，实现上传功能


<?php
/**
 * Created by PhpStorm.
 * User: zgcli
 * Date: 2019/2/12
 * Time: 16:32
 */

namespace app\admin\model;

use think\Model;
use Qiniu\Auth;
use Qiniu\Storage\UploadManager;

class Qiniu extends Model
{
    private $AccessKey;
    private $SecretKey;
    private $bucket;
    private $auth;

    function __construct()
    {
        parent::__construct();
        $this->AccessKey = config('qiniu.AccessKey');
        $this->SecretKey = config('qiniu.SecretKey');
        $this->bucket = config('qiniu.bucket');
        vendor('qiniu.php-sdk.autoload');
        $this->auth = new Auth($this->AccessKey, $this->SecretKey);
    }

    /**
     * @description 七牛上传文件
     * @param string $fileName 上传文件的name值
     * @param string $bucket 上传至七牛的指定空间
     * @return array 上传结果信息
     */
    public function upload($fileName = '', $bucket = '')
    {

        //文件获取、处理
        $file = request()->file($fileName);

        // 上传文件的本地路径
        $filePath = $file->getRealPath();

        //文件后缀
        $extension = pathinfo($file->getInfo('name'), PATHINFO_EXTENSION);

        //获取七牛token
        $bucket = empty($bucket) ? $this->bucket : $bucket;
        $token = $this->auth->uploadToken($bucket);

        //上传到七牛后保存的文件名
        $key = time() . rand(0, 9999) . '.' . $extension;

        //初始化UploadManager对象
        $uploadManager = new UploadManager();

        //文件上传
        list($result, $error) = $uploadManager->putFile($token, $key, $filePath);
        if ($error !== null) {
            return ['errNo' => 1, 'errMsg' => $error, 'data' => $this->SecretKey];
        } else {
            return ['errNo' => 0, 'data' => ['bucket' => $this->bucket, 'key' => $key, 'url' => config('qiniu.domain').$key]];
        }
    }

    /**
     * 获取私有空间或使用了原图保护功能的图片文件地址
     * @param string $url 格式：http://domain/key[文件名]?e=时间戳
     * @return string 可访问的url地址：http://domain/key[文件名]?e=时间戳&token='token'
     */
    public function getSignedUrl($url)
    {
        $signedUrl = $this->auth->privateDownloadUrl($url);
        //该url地址需要验证是否可访问。
        return $signedUrl;
    }
}

测试上传功能

Controller：

    public function test()
    {
        if ($this->request->isPost()) {
            $qiniu = new \app\admin\model\Qiniu();
            $data = $qiniu->upload('imgFile');
            var_dump($data);
        }
        return $this->view->fetch();
    }

View：

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>测试七牛云上传</title>
</head>
<body>
<form action="" enctype="multipart/form-data" method="post">
    <input type="file" name="imgFile">
    <input type="submit">
</form>
</body>
</html>