[PHP知识库]PHP使用webuploader实现超大文件分片上传

大文件分片上传，简单来说就是把大文件切分为若干个小文件，然后再一个一个的上传，最后由这些小文件再合并成原来的文件

webuploader下载地址及其文档：http://fex.baidu.com/webuploader/

话不多说 直接上代码

html代码

<link rel="stylesheet" href="/static/webuploader/webuploader.css" type="text/css"/>
<script src="/static/webuploader/webuploader.js"></script>

<div class="layui-form-item" id="uploadSoft">
    <label class="layui-form-label layui-required">软件上传</label>
    <div class="layui-input-block">
        <div id="uploadfile">
            <div id="the" class="uploader-list"></div>
            <div class="form-group form-inline" style="margin-top: 10px">
                <div id="pick" style="float:left" >选择文件</div>
                <button id="Btn" class="btn btn-primary" style="padding: 5px 10px;border-radius: 3px;">开始上传</button>
            </div>
        </div>
    </div>
    <div class="layui-input-block">
        <span class="red">* 注意：</span>
        <p>文件格式要求：zip,rar,apk,exe,msi</p>
    </div>
</div>


<script>
    //上传文件函数
    //folder文件保存目录
    var urlSoftHideVal = '';
    var file_id = 0;
    $(function(){
        var loading;
        var $list = $("#the");
        $btn = $("#Btn");
        var uploader = WebUploader.create({
            resize: false, // 不压缩image
            swf: '/static/webuploader/Uploader.swf',
            server: '{:url("Upload/uploadFile")}',
            pick : {
                id : "#pick",
                multiple: false
            },
            chunked: true,         //开启分片上传
            chunkSize:5*1024*1024, //分片文件大小
            fileSingleSizeLimit: 10*1024* 1024 * 1024, //最大上传文件大小
            formData: {
                folder:"files"  //自定义参数
            },
            chunkRetry : 2,
            accept: {
                title: 'Package',
                // extensions: '.zip,.apk,.rar,.exe,.dmg,.msi',
                mimeTypes: '.zip,.apk,.rar,.exe,.dmg,.msi'
            }
        });

        uploader.on( 'fileQueued', function( file ) {
            var id = $("#the").find('div').eq(0).attr('id');
            if (id) {
                var id_num = id.split('_');
                var getFiles = uploader.getFiles();
                uploader.removeFile(getFiles[id_num[2]], true);
                $list.children().remove();
            }

            $list.append( '<div id="' + file.id + '" class="item">' +
                '<h6 class="info">' + file.name + '</h6>' +
                '<p class="state">等待上传...</p>' +
                '</div>' );
        });

        uploader.on( 'uploadProgress', function( file, percentage ) {
            var $li = $( '#'+file.id ),
                $percent = $li.find('.progress .progress-bar');
            if ( !$percent.length ) {
                $percent = $('<div class="progress progress-striped active">' +
                    '<div class="progress-bar bg-success" role="progressbar" style="width: 0%">' +
                    ' <span></span></div>' +
                    '</div>').appendTo( $li ).find('.progress-bar');
            }

            $li.find('p.state').text('上传中');
            $percent.css( 'width', percentage * 100 + '%' );
            $percent.find('span').text(Math.round(percentage * 100) + '%');
            if (percentage * 100 == 100) {
                loading = layer.load(0, {
                    content:'文件校验中',
                    success: function (layerContentStyle) {
                        layerContentStyle.find('.layui-layer-content').css({
                            'padding-top': '35px',
                            'width': '200px'
                        });
                    }
                });
            }

        });

        uploader.on( 'uploadSuccess', function( file,response) {
            $( '#'+file.id ).find('p.state').text('已上传');
            $list.append('<input type="hidden" name="video" value="'+response.filePath+'" />');
            $('#urlSoftVal').val(response.filePath);
            urlSoftHideVal = response.filePath;
            layer.close(loading)
            layer.closeAll();
            layer.msg('文件上传成功！');
            $('.progress-bar').css( 'width', '100%');
            $('.progress-bar').find('span').text('100%');
        });


        uploader.on( 'uploadError', function( file ) {
            $( '#'+file.id ).find('p.state').text('上传出错');
        });

        uploader.on( 'uploadComplete', function( file ) {
            $( '#'+file.id ).find('.progress').fadeOut();
        });

        $btn.on('click', function () {
            if ($(this).hasClass('disabled')) {
                return false;
            }
            uploader.upload();
        });
    });
</script>

PHP代码?

<?php

namespace app\index\controller;

use think\Exception;

class Upload extends Common
{
    /**
     * 上传文件函数，如过上传不成功打印$_FILES数组，查看error报错信息
     * 值：0; 没有错误发生，文件上传成功。
     * 值：1; 上传的文件超过了 php.ini 中 upload_max_filesize 选项限制的值。
     * 值：2; 上传文件的大小超过了 HTML 表单中 MAX_FILE_SIZE 选项指定的值。
     * 值：3; 文件只有部分被上传。
     * 值：4; 没有文件被上传。
     */
    public function uploadFile()
    {
        header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
        header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
        header("Content-type: text/html; charset=gbk32");
        header("Cache-Control: no-store, no-cache, must-revalidate");
        header("Cache-Control: post-check=0, pre-check=0", false);
        header("Pragma: no-cache");
        $folder = input('folder');
        if ($_SERVER['REQUEST_METHOD'] == 'OPTIONS') {
            exit; // finish preflight CORS requests here
        }
        if ( !empty($_REQUEST[ 'debug' ]) ) {
            $random = rand(0, intval($_REQUEST[ 'debug' ]) );
            if ( $random === 0 ) {
                header("HTTP/1.0 500 Internal Server Error");
                exit;
            }
        }
        // header("HTTP/1.0 500 Internal Server Error");
        // exit;
        // 5 minutes execution time
        set_time_limit(5 * 60);
        // Uncomment this one to fake upload time
        // usleep(5000);
        // Settings
        $targetDir = './package/file_material_tmp';            //存放分片临时目录
        if($folder){
            $uploadDir = './package/file_material/'.$folder.'/'.date('Ymd');
        }else{
            $uploadDir = './package/file_material'.'/'.date('Ymd');    //分片合并存放目录
        }
        
        $cleanupTargetDir = true; // Remove old files
        $maxFileAge = 5 * 3600; // Temp file age in seconds
        
        // Create target dir
        if (!file_exists($targetDir)) {
            mkdir($targetDir,0777,true);
        }
        // Create target dir
        if (!file_exists($uploadDir)) {
            mkdir($uploadDir,0777,true);
        }
        // Get a file name
        if (isset($_REQUEST["name"])) {
            $fileName = $_REQUEST["name"];
        } elseif (!empty($_FILES)) {
            $fileName = $_FILES["file"]["name"];
        } else {
            $fileName = uniqid("file_");
        }
        $oldName = $fileName;
        
        $fileName = iconv('UTF-8','gb2312',$fileName);
        $filePath = $targetDir . DIRECTORY_SEPARATOR . $fileName;
        // $uploadPath = $uploadDir . DIRECTORY_SEPARATOR . $fileName;
        // Chunking might be enabled
        $chunk = isset($_REQUEST["chunk"]) ? intval($_REQUEST["chunk"]) : 0;
        $chunks = isset($_REQUEST["chunks"]) ? intval($_REQUEST["chunks"]) : 1;
        // Remove old temp files
        if ($cleanupTargetDir) {
            if (!is_dir($targetDir) || !$dir = opendir($targetDir)) {
                die('{"jsonrpc" : "2.0", "error" : {"code": 100, "message": "Failed to open temp directory111."}, "id" : "id"}');
            }
            while (($file = readdir($dir)) !== false) {
                $tmpfilePath = $targetDir . DIRECTORY_SEPARATOR . $file;
                // If temp file is current file proceed to the next
                if ($tmpfilePath == "{$filePath}_{$chunk}.part" || $tmpfilePath == "{$filePath}_{$chunk}.parttmp") {
                    continue;
                }
                // Remove temp file if it is older than the max age and is not the current file
                if (preg_match('/\.(part|parttmp)$/', $file) && (filemtime($tmpfilePath) < time() - $maxFileAge)) {
                    unlink($tmpfilePath);
                }
            }
            closedir($dir);
        }
        // Open temp file
        if (!$out = fopen("{$filePath}_{$chunk}.parttmp", "wb")) {
            die('{"jsonrpc" : "2.0", "error" : {"code": 102, "message": "Failed to open output stream222."}, "id" : "id"}');
        }
        if (!empty($_FILES)) {
            if ($_FILES["file"]["error"] || !is_uploaded_file($_FILES["file"]["tmp_name"])) {
                die('{"jsonrpc" : "2.0", "error" : {"code": 103, "message": "Failed to move uploaded file333."}, "id" : "id"}');
            }
            // Read binary input stream and append it to temp file
            if (!$in = fopen($_FILES["file"]["tmp_name"], "rb")) {
                die('{"jsonrpc" : "2.0", "error" : {"code": 101, "message": "Failed to open input stream444."}, "id" : "id"}');
            }
        } else {
            if (!$in = fopen("php://input", "rb")) {
                die('{"jsonrpc" : "2.0", "error" : {"code": 101, "message": "Failed to open input stream555."}, "id" : "id"}');
            }
        }
        while ($buff = fread($in, 5120)) {
            fwrite($out, $buff);
        }
        fclose($out);
        fclose($in);
        rename("{$filePath}_{$chunk}.parttmp", "{$filePath}_{$chunk}.part");
        $index = 0;
        $done = true;
        for( $index = 0; $index < $chunks; $index++ ) {
            if ( !file_exists("{$filePath}_{$index}.part") ) {
                $done = false;
                break;
            }
        }
        
        if ($done) {
            $scheme = get_request_scheme();
            $host = $_SERVER['SERVER_NAME'];
            $pathInfo = pathinfo($fileName);
            $hashStr = substr(md5($pathInfo['basename']),8,16);
            $hashName = time() . $hashStr . '.' .$pathInfo['extension'];
            $uploadPath = $uploadDir . '/' .$hashName;
            if (!$out = fopen($uploadPath, "wb")) {
                die('{"jsonrpc" : "2.0", "error" : {"code": 102, "message": "Failed to open output stream666."}, "id" : "id"}');
            }
            //flock($hander,LOCK_EX)文件锁
            if ( flock($out, LOCK_EX) ) {
                for( $index = 0; $index < $chunks; $index++ ) {
                    if (!$in = fopen("{$filePath}_{$index}.part", "rb")) {
                        break;
                    }
                    while ($buff = fread($in, 5120)) {
                        fwrite($out, $buff);
                    }
                    fclose($in);
                    unlink("{$filePath}_{$index}.part");
                }
                flock($out, LOCK_UN);
            }
            fclose($out);
            $uploadPath = $scheme . $host . trim($uploadPath, '.');
            $response = [
                'success'=>true,
                'oldName'=>$oldName,
                'filePath'=>$uploadPath,
                'fileSuffixes'=>$pathInfo['extension'],          //文件后缀名
            ];
            
            return json($response);
        }
        
        // Return Success JSON-RPC response
        die('{"jsonrpc" : "2.0", "result" : null, "id" : "id"}');
    }   
    
}