layui框架实战案例(5)：基于PHP后端的layUI上传视频到七牛云对象储存并自动转码

七牛云配置

先在七牛云申请账户及accessKey信息，保存为数组文件，方便后期调用

	// +----------------------------------------------------------------------
	// | 七牛云设置
	// +----------------------------------------------------------------------

	//七牛云appid
	'qn_accessKey' => 'idaqr1_NoVpXmz...',
	//七牛云appSecret
	'qn_secretKey' => 'y6J4dIkqHC...',
	//七牛储存外链地址；
	'qn_url' => 'http://heart.***.net/',
	//七牛存储空间列表；
	'qn_bucket' => 'heart',
	//七牛私有队列；
	'qn_pipeline' => 'chalu',

引入七牛云依赖包

开发文档及下载地址参见：https://developer.qiniu.com/kodo/sdk/1241/php

前端上传按钮

HTML代码：

        <div class="weui-form__title" style="margin: 10px auto;text-align: center;">
            <button class="layui-btn" id="test3"><i class="layui-icon">i>上传图片button>
            <button class="layui-btn" id="test5" style="margin: auto 10px;"><i class="layui-icon">i>上传视频button>
        div>

js代码

        //上传视频至七牛云;
        upload.render({
            elem: '#test5'
            , url: 'safe.php?m=Safe&a=safeUpVideo&act=upVideo&safe_id=' + safe_id
            , accept: 'video' //视频
            , exts: 'mp4|mpg|mov' //只允许上传压缩文件
            , before: function () {
                layer.load();
            }
            , done: function (res) {
                if (res.status != "0") {
                    return layer.msg('上传失败!');
                }

                //上传成功
                if (res.status == "0") {
                    layer.alert(res.err, {icon: 6}, function () {
                        // 获得frame索引
                        var index = parent.layer.getFrameIndex(window.name);
                        //关闭当前frame
                        parent.layer.close(index);
                        //重新加载页面
                        window.parent.location.reload();
                    });
                }
            }
        });
    });

后端处理

封装上传类

//引入入口文件，并写好相应要使用的模块命名空间
if (!defined('QINIU_ROOT')) {
    define('QINIU_ROOT', dirname(__FILE__) . '/');
    require(QINIU_ROOT . 'qiniu/autoload.php');
}

use Qiniu\Auth;
use Qiniu\Storage\UploadManager;
use Qiniu\Storage\BucketManager;

class QINIU
{
    public function upchange($conf_accessKey, $conf_secretKey, $conf_bucket, $conf_pipeline, $filePath, $mediaid)
    {
        //初始化好Auth 类,用于签名的公钥和私钥
        $accessKey = $conf_accessKey;
        $secretKey = $conf_secretKey;
        $auth = new Auth($accessKey, $secretKey);

        $bucket = $conf_bucket;
        //数据处理队列名称,不设置代表不使用私有队列，使用公有队列。
        $pipeline = $conf_pipeline;

        //通过添加'|saveas'参数，指定处理后的文件保存的bucket和key
        //不指定默认保存在当前空间，bucket为目标空间，后一个参数为转码之后文件名
        $savekey = Qiniu\base64_urlSafeEncode($bucket . ':' . $mediaid . '.mp4');
        //设置转码参数
        $fops = "avthumb/mp4/ab/128k/ar/44100/acodec/libfaac/r/30/vb/720k/vcodec/libx264/s/640x360/autoscale/1/stripmeta/0";
        $fops = $fops . '|saveas/' . $savekey;
        if (!empty($pipeline)) {  //使用私有队列
            $policy = array(
                'persistentOps' => $fops,
                'persistentPipeline' => $pipeline
            );
        } else {                  //使用公有队列
            $policy = array(
                'persistentOps' => $fops
            );
        }

        //指定上传转码命令;
        $uptoken = $auth->uploadToken($bucket, null, 3600, $policy);
        $key = $mediaid . '.mp4'; //七牛云中保存的文件名
        $uploadMgr = new UploadManager();
        //上传文件并转码$filePath为本地文件路径;
        list($ret, $err) = $uploadMgr->putFile($uptoken, $key, $filePath);
        if ($err !== null) {
            return false;
        } else {
            return $ret['key'];
        }
    }
}

调用上传类

    //上传视频 by poleng 2020-09-05
    case "upVideo";
        $safe_id = get_param("safe_id");
        $file = $_FILES['file'];
        //处理文件后缀名;
        $ext = explode('.', $_FILES['file']['name']);
        $ext = end($ext);//mp4
        //上传至七牛云并转码；
        require 'libs/QiNiu.php';
        $qiniu = new QINIU;
        //文件随机命名;
        $mediaId = md5(time());
        $fileName = $file['tmp_name'];
        //执行上传操作;
        $qiniu->upchange($CONF['qn_accessKey'], $CONF['qn_secretKey'], $CONF['qn_bucket'], $CONF['qn_pipeline'], $fileName, $mediaId);
        //获取上传七牛云的文件名;
        $videoUrl = $CONF['qn_url'] . $mediaId . "." . $ext;

        //视频入库;
        $up_preview = "upload/video.jpg";
        $up_tpye = "1";
        $up_time = time();
        $db->insert('upfiles', array('safe_id' => $safe_id, 'up_url' => $videoUrl, 'up_preview' => $up_preview, 'up_tpye' => $up_tpye, 'up_time' => $up_time));

        //返回JSON；
        $res['status'] = "0";
        $res['videoUrl'] = $videoUrl;
        $res['err'] = '上传成功!';
        die(json_encode_lockdata($res));
        break;

Done！