相关文章系列：
（文章代码均已升级至Swift3）
Swift - HTTP网络操作库Alamofire使用详解1（配置，以及数据请求）
[当前文章] Swift - HTTP网络操作库Alamofire使用详解2（文件上传）
Swift - HTTP网络操作库Alamofire使用详解3（文件下载，断点续传）
Swift - HTTP网络操作库Alamofire使用详解4（用户权限认证）
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
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let
fileURL =
Bundle
.main.url(forResource:
"hangge"
, withExtension:
"zip"
)
Alamofire
.upload(fileURL!, to:
"http://www.hangge.com/upload.php"
)
.responseJSON { response
in
debugPrint(response)
}
附：服务端代码（upload.php）
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<?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
));
?>
如何在上传时附带上文件名？
有时我们在文件上传的同时还会想要附带一些其它参数，比如文件名。这样服务端接收到文件后，就可以根据我们传过来的文件名来保存。实现这个其实很简单，客户端和服务端分别做如下修改。
客户端：将文件名以参数的形式跟在链接后面。比如：http://hangge.com/upload.php
?fileName=image1.png服务端：通过
$_GET["fileName"] 得到这个参数，并用其作为文件名保存。
3，上传时附带上传进度
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let
fileURL =
Bundle
.main.url(forResource:
"hangge"
, withExtension:
"zip"
)
Alamofire
.upload(fileURL!, to:
"http://www.hangge.com/upload.php"
)
.uploadProgress { progress
in
// main queue by default
print
(
"当前进度: \(progress.fractionCompleted)"
)
}
.responseJSON { response
in
debugPrint(response)
}
可以看到控制台不断输出已上传的进度（1则表示上传完毕）：
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）
（1）上传两个文件
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let
fileURL1 =
Bundle
.main.url(forResource:
"hangge"
, withExtension:
"png"
)
let
fileURL2 =
Bundle
.main.url(forResource:
"hangge"
, withExtension:
"zip"
)
Alamofire
.upload(
multipartFormData: { multipartFormData
in
multipartFormData.append(fileURL1!, withName:
"file1"
)
multipartFormData.append(fileURL2!, withName:
"file2"
)
},
to:
"http://www.hangge.com/upload2.php"
,
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）
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<?
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"
]);
?>
（2）文本参数与文件一起提交（文件除了可以使用fileURL，还可以上传NSData类型的文件数据）
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//字符串
let
strData =
"hangge.com"
.data(using:
String
.
Encoding
.utf8)
//数字
let
intData =
String
(10).data(using:
String
.
Encoding
.utf8)
//文件1
let
path =
Bundle
.main.url(forResource:
"hangge"
, withExtension:
"png"
)!
let
file1Data = try!
Data
(contentsOf: path)
//文件2
let
file2URL =
Bundle
.main.url(forResource:
"hangge"
, withExtension:
"zip"
)
Alamofire
.upload(
multipartFormData: { multipartFormData
in
multipartFormData.append(strData!, withName:
"value1"
)
multipartFormData.append(intData!, withName:
"value2"
)
multipartFormData.append(file1Data, withName:
"file1"
,
fileName:
"h.png"
, mimeType:
"image/png"
)
multipartFormData.append(file2URL!, withName:
"file2"
)
},
to:
"http://www.hangge.com/upload2.php"
,
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）
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<?
$value1
=
$_POST
[
"value1"
];
$value2
=
$_POST
[
"value2"
];
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"
]);
?>
原文出自：
www.hangge.com
转载请保留原文链接：
http://www.hangge.com/blog/cache/detail_971.html
