/**
* 上传文件到七牛，并获得其预览地址
* @param string $filePath 本地文件路径
* @param string $key 存储目标文件名（默认为 md5_filesize.type
* @return string 存储后的预览URL
*/
public static function uploadAndReturnQiniuPreviewUrl($filePath, $key = null)
{
if (!is_null($key)) {
$uploadToken = W2Qiniu::getUploadTokenForQiniuUpload($key);
} else {
$uploadToken = W2Qiniu::getUploadTokenForQiniuUploadWithFile($filePath);
}
if (defined('IS_SQL_PRINT') && IS_SQL_PRINT) {
var_export($uploadToken);
}
if (is_array($uploadToken) && array_key_exists('uploadToken', $uploadToken)) {
if (array_key_exists('isFileExistInQiniu', $uploadToken) && $uploadToken['isFileExistInQiniu']) {
return $uploadToken['urlPreview'];
} else {
$putExtra = new Qiniu_PutExtra();
$putExtra->Crc32 = 1;
list($ret, $err) = Qiniu_PutFile($uploadToken['uploadToken'], $uploadToken['SaveKey'], $filePath, $putExtra);
if ($err !== null) {
throw new Exception($err, 1);
} else {
return $uploadToken['urlPreview'];
}
}
}
}
