generateMultiuploadParts() public méthode

计算文件可以分成多少个part，以及每个part的长度以及起始位置 方法必须在 中调用
public generateMultiuploadParts ( integer $file_size, integer $partSize = 5242880 ) : array
$file_size integer 文件大小
$partSize integer part大小,默认5M
Résultat array An array 包含 key-value 键值对. Key 为 `seekTo` 和 `length`.
OssClient Class Documentation
Exemple #1
0
/**
 * 使用基本的api分阶段进行分片上传
 *
 * @param OssClient $ossClient OssClient实例
 * @param string $bucket 存储空间名称
 * @throws OssException
 */
function putObjectByRawApis($ossClient, $bucket)
{
    $object = "test/multipart-test.txt";
    /**
     *  step 1. 初始化一个分块上传事件, 也就是初始化上传Multipart, 获取upload id
     */
    try {
        $uploadId = $ossClient->initiateMultipartUpload($bucket, $object);
    } catch (OssException $e) {
        printf(__FUNCTION__ . ": initiateMultipartUpload FAILED\n");
        printf($e->getMessage() . "\n");
        return;
    }
    print __FUNCTION__ . ": initiateMultipartUpload OK" . "\n";
    /*
     * step 2. 上传分片
     */
    $partSize = 10 * 1024 * 1024;
    $uploadFile = __FILE__;
    $uploadFileSize = filesize($uploadFile);
    $pieces = $ossClient->generateMultiuploadParts($uploadFileSize, $partSize);
    $responseUploadPart = array();
    $uploadPosition = 0;
    $isCheckMd5 = true;
    foreach ($pieces as $i => $piece) {
        $fromPos = $uploadPosition + (int) $piece[$ossClient::OSS_SEEK_TO];
        $toPos = (int) $piece[$ossClient::OSS_LENGTH] + $fromPos - 1;
        $upOptions = array($ossClient::OSS_FILE_UPLOAD => $uploadFile, $ossClient::OSS_PART_NUM => $i + 1, $ossClient::OSS_SEEK_TO => $fromPos, $ossClient::OSS_LENGTH => $toPos - $fromPos + 1, $ossClient::OSS_CHECK_MD5 => $isCheckMd5);
        if ($isCheckMd5) {
            $contentMd5 = OssUtil::getMd5SumForFile($uploadFile, $fromPos, $toPos);
            $upOptions[$ossClient::OSS_CONTENT_MD5] = $contentMd5;
        }
        //2. 将每一分片上传到OSS
        try {
            $responseUploadPart[] = $ossClient->uploadPart($bucket, $object, $uploadId, $upOptions);
        } catch (OssException $e) {
            printf(__FUNCTION__ . ": initiateMultipartUpload, uploadPart - part#{$i} FAILED\n");
            printf($e->getMessage() . "\n");
            return;
        }
        printf(__FUNCTION__ . ": initiateMultipartUpload, uploadPart - part#{$i} OK\n");
    }
    $uploadParts = array();
    foreach ($responseUploadPart as $i => $eTag) {
        $uploadParts[] = array('PartNumber' => $i + 1, 'ETag' => $eTag);
    }
    /**
     * step 3. 完成上传
     */
    try {
        $ossClient->completeMultipartUpload($bucket, $object, $uploadId, $uploadParts);
    } catch (OssException $e) {
        printf(__FUNCTION__ . ": completeMultipartUpload FAILED\n");
        printf($e->getMessage() . "\n");
        return;
    }
    printf(__FUNCTION__ . ": completeMultipartUpload OK\n");
}