Swift HTTP网络操作库Alamofire实现文件上传详解

六，使用Alamofire进行文件上传

1，Alamofire支持如下上传类型：

File
Data
Stream
MultipartFormData

2，使用文件流的形式上传文件

let fileURL = NSBundle.mainBundle().URLForResource("hangge", withExtension: "zip")

Alamofire.upload(.POST, "http://www.han*g**ge.com/upload.php", file: fileURL!)

附：服务端代码（upload.php）

/** php 接收流文件
* @param String $file 接收后保存的文件名
* @return boolean
*/
function receiveStreamFile($receiveFile){
$streamData = isset($GLOBALS['HTTP_RAW_POST_DATA'])? $GLOBALS['HTTP_RAW_POST_DATA'] : '';

if(empty($streamData)){
$streamData = file_get_contents('php://input');
}

if($streamData!=''){
$ret = file_put_contents($receiveFile, $streamData, true);
}else{
$ret = false;
}

return $ret;
}

//定义服务器存储路径和文件名
$receiveFile = $_SERVER["DOCUMENT_ROOT"]."/uploadFiles/hangge.zip";
$ret = receiveStreamFile($receiveFile);
echo json_encode(array('success'=>(bool)$ret));
?>

3，上传时附带上传进度

let fileURL = NSBundle.mainBundle().URLForResource("hangge", withExtension: "zip")

Alamofire.upload(.POST, "http://www.han*g**ge.com/upload.php", file: fileURL!)
.progress { bytesWritten, totalBytesWritten, totalBytesExpectedToWrite in
print(totalBytesWritten)

// This closure is NOT called on the main queue for performance
// reasons. To update your ui, dispatch to the main queue.
dispatch_async(dispatch_get_main_queue()) {
print("Total bytes written on main queue: (totalBytesWritten)")
}
}
.responseJSON { response in
debugPrint(response)
}
可以看到控制台不断输出已上传的数据大小：
原文:Swift - HTTP网络操作库Alamofire使用详解2（文件上传）

4，上传MultipartFormData类型的文件数据（类似于网页上Form表单里的文件提交）

let fileURL1 = NSBundle.mainBundle().URLForResource("hangge", withExtension: "png")
let fileURL2 = NSBundle.mainBundle().URLForResource("hangge", withExtension: "zip")

Alamofire.upload(
.POST,
"http://www.h***angge.com/upload2.php",
multipartFormData: { multipartFormData in
multipartFormData.appendBodyPart(fileURL: fileURL1!, name: "file1")
multipartFormData.appendBodyPart(fileURL: fileURL2!, name: "file2")
},
encodingCompletion: { encodingResult in
switch encodingResult {
case .Success(let upload, _, _):
upload.responseJSON { response in
debugPrint(response)
}
case .Failure(let encodingError):
print(encodingError)
}
}
)

附：服务端代码（upload2.php）

move_uploaded_file($_FILES["file1"]["tmp_name"],
$_SERVER["DOCUMENT_ROOT"]."/uploadFiles/" . $_FILES["file1"]["name"]);

move_uploaded_file($_FILES["file2"]["tmp_name"],
$_SERVER["DOCUMENT_ROOT"]."/uploadFiles/" . $_FILES["file2"]["name"]);
?>